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lib_pv_io_manager.cpp
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lib_pv_io_manager.cpp
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/*
BSD 3-Clause License
Copyright (c) Alliance for Sustainable Energy, LLC. See also https://github.com/NREL/ssc/blob/develop/LICENSE
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <memory>
#include <vector>
#include "lib_pv_io_manager.h"
static const int __nday[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 };
PVIOManager::PVIOManager(compute_module* cm, std::string cmName)
{
std::unique_ptr<Irradiance_IO> ptr(new Irradiance_IO(cm, cmName));
m_IrradianceIO = std::move(ptr);
std::unique_ptr<Simulation_IO> ptr2(new Simulation_IO(cm, *m_IrradianceIO));
m_SimulationIO = std::move(ptr2);
std::unique_ptr<ShadeDB8_mpp> shadeDatabase(new ShadeDB8_mpp());
m_shadeDatabase = std::move(shadeDatabase);
m_shadeDatabase->init();
std::unique_ptr<Inverter_IO> ptrInv(new Inverter_IO(cm, cmName));
m_InverterIO = std::move(ptrInv);
// Gather subarrays which are enabled
nSubarrays = 1;
std::unique_ptr<Subarray_IO> subarray1(new Subarray_IO(cm, cmName, 1));
m_SubarraysIO.push_back(std::move(subarray1));
for (size_t subarray = 2; subarray <= 4; subarray++)
{
// can eventually create a module for each Subarray to allow flexibility.
std::unique_ptr<Subarray_IO> ptr3(new Subarray_IO(cm, cmName, subarray));
if (ptr3->enable) {
m_SubarraysIO.push_back(std::move(ptr3));
nSubarrays++;
}
}
// Aggregate Subarray outputs in different structure
std::unique_ptr<PVSystem_IO> pvSystem(new PVSystem_IO(cm, cmName, m_SimulationIO.get(), m_IrradianceIO.get(), getSubarrays(), m_InverterIO.get()));
m_PVSystemIO = std::move(pvSystem);
// Allocate outputs, moved to here due to previous difficult to debug crashes due to misallocation
allocateOutputs(cm);
m_computeModule = cm;
m_computeModuleName = cmName;
}
void PVIOManager::allocateOutputs(compute_module* cm)
{
m_IrradianceIO->AllocateOutputs(cm);
m_PVSystemIO->AllocateOutputs(cm);
}
Irradiance_IO* PVIOManager::getIrradianceIO() { return m_IrradianceIO.get(); }
compute_module* PVIOManager::getComputeModule() { return m_computeModule; }
Subarray_IO* PVIOManager::getSubarrayIO(size_t subarrayNumber) { return m_SubarraysIO[subarrayNumber].get(); }
ShadeDB8_mpp* PVIOManager::getShadeDatabase() { return m_shadeDatabase.get(); }
std::vector<Subarray_IO*> PVIOManager::getSubarrays()
{
std::vector<Subarray_IO*> subarrays;
for (size_t subarray = 0; subarray < m_SubarraysIO.size(); subarray++) {
subarrays.push_back(m_SubarraysIO[subarray].get());
}
return subarrays;
}
PVSystem_IO* PVIOManager::getPVSystemIO() { return m_PVSystemIO.get(); }
Simulation_IO* PVIOManager::getSimulationIO() { return m_SimulationIO.get(); }
Simulation_IO::Simulation_IO(compute_module* cm, Irradiance_IO& IrradianceIO)
{
numberOfWeatherFileRecords = IrradianceIO.numberOfWeatherFileRecords;
stepsPerHour = IrradianceIO.stepsPerHour;
dtHour = IrradianceIO.dtHour;
useLifetimeOutput = false;
if (cm->is_assigned("system_use_lifetime_output")) useLifetimeOutput = cm->as_integer("system_use_lifetime_output");
numberOfYears = 1;
saveLifetimeVars = 0;
if (useLifetimeOutput) {
numberOfYears = cm->as_integer("analysis_period");
saveLifetimeVars = cm->as_integer("save_full_lifetime_variables");
}
numberOfSteps = numberOfYears * numberOfWeatherFileRecords;
annualSimulation = IrradianceIO.weatherDataProvider->annualSimulation();
}
Irradiance_IO::Irradiance_IO(compute_module* cm, std::string cmName)
{
numberOfSubarrays = 4;
radiationMode = cm->as_integer("irrad_mode");
skyModel = cm->as_integer("sky_model");
if (cm->is_assigned("solar_resource_file")) {
weatherDataProvider = std::unique_ptr<weather_data_provider>(new weatherfile(cm->as_string("solar_resource_file")));
weatherfile* weatherFile = dynamic_cast<weatherfile*>(weatherDataProvider.get());
if (!weatherFile->ok()) throw exec_error(cmName, weatherFile->message());
if (weatherFile->has_message()) cm->log(weatherFile->message(), SSC_WARNING);
}
else if (cm->is_assigned("solar_resource_data")) {
weatherDataProvider = std::unique_ptr<weather_data_provider>(new weatherdata(cm->lookup("solar_resource_data")));
if (weatherDataProvider->has_message()) cm->log(weatherDataProvider->message(), SSC_WARNING);
}
else {
throw exec_error(cmName, "No weather data supplied");
}
// assumes instantaneous values, unless hourly file with no minute column specified
tsShiftHours = 0.0;
instantaneous = true;
if (weatherDataProvider->has_data_column(weather_data_provider::MINUTE))
{
// if we have an file with a minute column, then
// the starting time offset equals the time
// of the first record (for correct plotting)
// this holds true even for hourly data with a minute column
weather_record rec;
if (weatherDataProvider->read(&rec))
tsShiftHours = rec.minute / 60.0;
weatherDataProvider->rewind();
}
else if (weatherDataProvider->annualSimulation() && weatherDataProvider->nrecords() == 8760)
{
// hourly file with no minute data column. assume
// integrated/averaged values and use mid point convention for interpreting results
instantaneous = false;
tsShiftHours = 0.5;
}
else
throw exec_error(cmName, "subhourly and non-annual weather files must specify the minute for each record");
weatherDataProvider->header(&weatherHeader);
//total number of records in the weather file (i.e. 8760 * timestep)
numberOfWeatherFileRecords = weatherDataProvider->nrecords();
dtHour = 1.0; //initialize these values to 1 for non-annual simulations
stepsPerHour = 1.0;
if (weatherDataProvider->annualSimulation())
{
stepsPerHour = numberOfWeatherFileRecords / 8760;
if (stepsPerHour > 0)
dtHour /= stepsPerHour;
}
if (weatherDataProvider->annualSimulation() && numberOfWeatherFileRecords % 8760 != 0)
throw exec_error(cmName, util::format("invalid number of data records (%zu): must be an integer multiple of 8760", numberOfWeatherFileRecords));
if (weatherDataProvider->annualSimulation() && (stepsPerHour < 1 || stepsPerHour > 60))
throw exec_error(cmName, util::format("%d timesteps per hour found. Weather data should be single year.", stepsPerHour));
useWeatherFileAlbedo = cm->as_boolean("use_wf_albedo");
useSpatialAlbedos = cm->as_boolean("use_spatial_albedos");
userSpecifiedMonthlySpatialAlbedos.at(0) = std::numeric_limits<double>::quiet_NaN();
userSpecifiedMonthlyAlbedo.push_back(std::numeric_limits<double>::quiet_NaN());
if (useSpatialAlbedos) {
userSpecifiedMonthlySpatialAlbedos = cm->as_matrix("albedo_spatial");
double* data = userSpecifiedMonthlySpatialAlbedos.data();
std::size_t n_cells = userSpecifiedMonthlySpatialAlbedos.ncells();
if (*min_element(data, data + n_cells) <= 0 ||
*max_element(data, data + n_cells) >= 1) {
throw exec_error(cmName, "Albedos must be greater than zero and less than one in the monthly spatial albedo matrix.");
}
}
else {
userSpecifiedMonthlyAlbedo = cm->as_vector_double("albedo");
if (*min_element(userSpecifiedMonthlyAlbedo.begin(), userSpecifiedMonthlyAlbedo.end()) <= 0 ||
*max_element(userSpecifiedMonthlyAlbedo.begin(), userSpecifiedMonthlyAlbedo.end()) >= 1) {
throw exec_error(cmName, "Albedos must be greater than zero and less than one in the monthly uniform albedo matrix.");
}
}
checkWeatherFile(cm, cmName);
}
void Irradiance_IO::checkWeatherFile(compute_module* cm, std::string cmName)
{
size_t num_alb_errors = 0;
for (size_t idx = 0; idx < numberOfWeatherFileRecords; idx++)
{
if (!weatherDataProvider->read(&weatherRecord))
throw exec_error(cmName, "could not read data line " + util::to_string((int)(idx + 1)) + " in weather file");
// Check for missing data
if ((weatherRecord.gh != weatherRecord.gh) && (radiationMode == irrad::DN_GH || radiationMode == irrad::GH_DF)) {
cm->log(util::format("missing global irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d, minute:%lg], exiting",
weatherRecord.gh, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_ERROR, (float)idx);
return;
}
if ((weatherRecord.dn != weatherRecord.dn) && (radiationMode == irrad::DN_DF || radiationMode == irrad::DN_GH)) {
cm->log(util::format("missing beam irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d, minute:%lg], exiting",
weatherRecord.dn, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_ERROR, (float)idx);
return;
}
if ((weatherRecord.df != weatherRecord.df) && (radiationMode == irrad::DN_DF || radiationMode == irrad::GH_DF)) {
cm->log(util::format("missing diffuse irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d, minute:%lg], exiting",
weatherRecord.df, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_ERROR, (float)idx);
return;
}
if ((weatherRecord.poa != weatherRecord.poa) && (radiationMode == irrad::POA_R || radiationMode == irrad::POA_P)) {
cm->log(util::format("missing POA irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d, minute:%lg], exiting",
weatherRecord.poa, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_ERROR, (float)idx);
return;
}
if (weatherRecord.tdry != weatherRecord.tdry) {
cm->log(util::format("missing temperature %lg W/m2 at time [y:%d m:%d d:%d h:%d, minute:%lg], exiting",
weatherRecord.tdry, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_ERROR, (float)idx);
return;
}
if (weatherRecord.wspd != weatherRecord.wspd) {
cm->log(util::format("missing wind speed %lg W/m2 at time [y:%d m:%d d:%d h:%d, minute:%lg], exiting",
weatherRecord.wspd, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_ERROR, (float)idx);
return;
}
// Check for bad data
if ((weatherRecord.gh < 0 || weatherRecord.gh > irrad::irradiationMax) && (radiationMode == irrad::DN_GH || radiationMode == irrad::GH_DF))
{
cm->log(util::format("Out of range global irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d minute:%lg], set to zero",
weatherRecord.gh, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_WARNING, (float)idx);
weatherRecord.gh = 0;
}
if ((weatherRecord.dn < 0 || weatherRecord.dn > irrad::irradiationMax) && (radiationMode == irrad::DN_DF || radiationMode == irrad::DN_GH))
{
cm->log(util::format("Out of range beam irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d minute:%lg], set to zero",
weatherRecord.dn, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_WARNING, (float)idx);
weatherRecord.dn = 0;
}
if ((weatherRecord.df < 0 || weatherRecord.df > irrad::irradiationMax) && (radiationMode == irrad::DN_DF || radiationMode == irrad::GH_DF))
{
cm->log(util::format("Out of range diffuse irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d minute:%lg], set to zero",
weatherRecord.df, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_WARNING, (float)idx);
weatherRecord.df = 0;
}
if ((weatherRecord.poa < 0 || weatherRecord.poa > irrad::irradiationMax) && (radiationMode == irrad::POA_R || radiationMode == irrad::POA_P))
{
cm->log(util::format("Out of range POA irradiance %lg W/m2 at time [y:%d m:%d d:%d h:%d minute:%lg], set to zero",
weatherRecord.poa, weatherRecord.year, weatherRecord.month, weatherRecord.day, weatherRecord.hour, weatherRecord.minute), SSC_WARNING, (float)idx);
weatherRecord.poa = 0;
}
if (useWeatherFileAlbedo && (weatherRecord.alb <= 0 || weatherRecord.alb >= 1))
{
num_alb_errors++;
weatherRecord.alb = 0;
}
}
if (num_alb_errors > 0)
cm->log(util::format("Weather file albedo has %d invalid values, using monthly value", (int)num_alb_errors), SSC_WARNING);
weatherDataProvider->rewind();
}
void Irradiance_IO::AllocateOutputs(compute_module* cm)
{
if (cm->as_integer("save_full_lifetime_variables") == 1 && cm->is_assigned("analysis_period")) {
numberOfWeatherFileRecords *= cm->as_integer("analysis_period");
}
p_weatherFileGHI = cm->allocate("gh", numberOfWeatherFileRecords);
p_weatherFileDNI = cm->allocate("dn", numberOfWeatherFileRecords);
p_weatherFileDHI = cm->allocate("df", numberOfWeatherFileRecords);
p_weatherFilePOA.push_back(cm->allocate("wfpoa", numberOfWeatherFileRecords));
p_sunPositionTime = cm->allocate("sunpos_hour", numberOfWeatherFileRecords);
p_weatherFileWindSpeed = cm->allocate("wspd", numberOfWeatherFileRecords);
p_weatherFileAmbientTemp = cm->allocate("tdry", numberOfWeatherFileRecords);
if (useSpatialAlbedos) {
p_weatherFileAlbedoSpatial = cm->allocate("alb_spatial", weatherDataProvider->nrecords() + 1, userSpecifiedMonthlySpatialAlbedos.ncols() + 1); // +1 for row/col labels
}
else {
p_weatherFileAlbedo = cm->allocate("alb", numberOfWeatherFileRecords);
}
p_weatherFileSnowDepth = cm->allocate("snowdepth", numberOfWeatherFileRecords);
// If using input POA, must have POA for every subarray or assume POA applies to each subarray
for (size_t subarray = 0; subarray != numberOfSubarrays; subarray++) {
std::string wfpoa = "wfpoa" + util::to_string(static_cast<int>(subarray + 1));
p_weatherFilePOA.push_back(cm->allocate(wfpoa, numberOfWeatherFileRecords));
}
//set up the calculated components of irradiance such that they aren't reported if they aren't assigned
//three possible calculated irradiance: gh, df, dn
if (radiationMode == irrad::DN_DF) p_IrradianceCalculated[0] = cm->allocate("gh_calc", numberOfWeatherFileRecords); //don't calculate global for POA models
if (radiationMode == irrad::DN_GH || radiationMode == irrad::POA_R || radiationMode == irrad::POA_P) p_IrradianceCalculated[1] = cm->allocate("df_calc", numberOfWeatherFileRecords);
if (radiationMode == irrad::GH_DF || radiationMode == irrad::POA_R || radiationMode == irrad::POA_P) p_IrradianceCalculated[2] = cm->allocate("dn_calc", numberOfWeatherFileRecords);
//output arrays for solar position calculations- same for all four subarrays
p_sunZenithAngle = cm->allocate("sol_zen", numberOfWeatherFileRecords);
p_sunAltitudeAngle = cm->allocate("sol_alt", numberOfWeatherFileRecords);
p_sunAzimuthAngle = cm->allocate("sol_azi", numberOfWeatherFileRecords);
p_absoluteAirmass = cm->allocate("airmass", numberOfWeatherFileRecords);
p_sunUpOverHorizon = cm->allocate("sunup", numberOfWeatherFileRecords);
}
void Irradiance_IO::AssignOutputs(compute_module* cm)
{
cm->assign("ts_shift_hours", var_data((ssc_number_t)tsShiftHours));
}
Subarray_IO::Subarray_IO(compute_module* cm, const std::string& cmName, size_t subarrayNumber)
{
prefix = "subarray" + util::to_string(static_cast<int>(subarrayNumber)) + "_";
enable = true;
if (subarrayNumber > 1)
enable = cm->as_boolean(prefix + "enable");
if (enable)
{
int n = cm->as_integer(prefix + "nstrings");
if (n < 0) {
throw exec_error(cmName, "invalid string allocation between subarrays. all subarrays must have zero or positive number of strings.");
}
nStrings = n;
if (nStrings == 0) //subarrays with no strings need to be treated as if they are disabled to avoid divide by zero issues in the subarray setup
{
enable = false;
return;
}
nModulesPerString = cm->as_integer(prefix + "modules_per_string");
mpptInput = cm->as_integer(prefix + "mppt_input");
trackMode = cm->as_integer(prefix + "track_mode");
useCustomRotAngles = cm->as_boolean(prefix + "use_custom_rot_angles");
useCustomCellTemp = cm->as_boolean(prefix + "use_custom_cell_temp");
tiltEqualLatitude = 0;
if (cm->is_assigned(prefix + "tilt_eq_lat")) tiltEqualLatitude = cm->as_boolean(prefix + "tilt_eq_lat");
//tilt required for fixed tilt, single axis, and azimuth axis- can't check for this in variable table so check here
tiltDegrees = std::numeric_limits<double>::quiet_NaN();
if (trackMode == irrad::FIXED_TILT || trackMode == irrad::SINGLE_AXIS || trackMode == irrad::AZIMUTH_AXIS)
if (!tiltEqualLatitude && !cm->is_assigned(prefix + "tilt"))
throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " tilt required but not assigned.");
if (cm->is_assigned(prefix + "tilt")) tiltDegrees = cm->as_double(prefix + "tilt");
//monthly tilt required if seasonal tracking mode selected- can't check for this in variable table so check here
if (trackMode == irrad::SEASONAL_TILT && !cm->is_assigned(prefix + "monthly_tilt"))
throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " monthly tilt required but not assigned.");
if (cm->is_assigned(prefix + "monthly_tilt") && trackMode == irrad::SEASONAL_TILT) {
monthlyTiltDegrees = cm->as_vector_double(prefix + "monthly_tilt");
for (int i = 0; i < monthlyTiltDegrees.size(); i++) {
if (monthlyTiltDegrees[i] < 0.0) throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " monthly tilt angles cannot be negative.");
}
}
/* Insert checks for custom tracker rotation angles here*/
if (useCustomRotAngles == 1) {
if (cm->is_assigned(prefix + "custom_rot_angles_array")) {
customRotAngles = cm->as_vector_double(prefix + "custom_rot_angles_array");
for (int i = 0; i < customRotAngles.size(); i++) {
if (customRotAngles[i] > 90.0 || customRotAngles[i] < -90.0) throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " custom tracker rotation angles must be between -90 and 90 degrees.");
}
}
else {
throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " custom tracker rotation angles required but not assigned.");
}
}
/* Insert checks for using custom cell temperature array*/
if (useCustomCellTemp == 1) {
if (cm->is_assigned(prefix + "custom_cell_temp_array")) {
customCellTempArray = cm->as_vector_double(prefix + "custom_cell_temp_array");
for (int i = 0; i < customCellTempArray.size(); i++) {
if (customCellTempArray[i] > 100.0) throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " custom cell temperature cannot be greater than 100 degrees Celsius.");
}
}
else {
throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " custom cell temperatures required but not assigned.");
}
}
//azimuth required for fixed tilt, single axis, and seasonal tilt- can't check for this in variable table so check here
azimuthDegrees = std::numeric_limits<double>::quiet_NaN();
if (trackMode == irrad::FIXED_TILT || trackMode == irrad::SINGLE_AXIS || trackMode == irrad::SEASONAL_TILT)
if (!cm->is_assigned(prefix + "azimuth"))
throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " azimuth required but not assigned.");
if (cm->is_assigned(prefix + "azimuth")) azimuthDegrees = cm->as_double(prefix + "azimuth");
trackerRotationLimitDegrees = cm->as_double(prefix + "rotlim");
groundCoverageRatio = cm->as_double(prefix + "gcr");
slopeTilt = cm->as_double(prefix + "slope_tilt");
slopeAzm = cm->as_double(prefix + "slope_azm");
//check that backtracking input is assigned here because cannot check in the variable table
backtrackingEnabled = 0;
if (trackMode == irrad::SINGLE_AXIS)
if (!cm->is_assigned(prefix + "backtrack"))
throw exec_error(cmName, "Subarray " + util::to_string((int)subarrayNumber) + " backtrack required but not assigned.");
if (cm->is_assigned(prefix + "backtrack")) backtrackingEnabled = cm->as_boolean(prefix + "backtrack");
moduleAspectRatio = cm->as_double("module_aspect_ratio");
usePOAFromWeatherFile = false;
// losses
calculateRackShading = cm->as_boolean("calculate_rack_shading");
calculateBifacialElectricalMismatch = cm->as_boolean("calculate_bifacial_electrical_mismatch");
rearSoilingLossPercent = cm->as_double(prefix + "rear_soiling_loss") / 100;
rackShadingLossPercent = cm->as_double(prefix + "rack_shading") / 100;
dcOptimizerLossPercent = cm->as_double("dcoptimizer_loss") / 100;
mismatchLossPercent = cm->as_double(prefix + "mismatch_loss") / 100;
diodesLossPercent = cm->as_double(prefix + "diodeconn_loss") / 100;
dcWiringLossPercent = cm->as_double(prefix + "dcwiring_loss") / 100;
trackingLossPercent = cm->as_double(prefix + "tracking_loss") / 100;
nameplateLossPercent = cm->as_double(prefix + "nameplate_loss") / 100;
electricalMismatchLossPercent = cm->as_double(prefix + "electrical_mismatch") / 100;
dcLossTotalPercent = 1 - (
(1 - dcOptimizerLossPercent) *
(1 - mismatchLossPercent) *
(1 - diodesLossPercent) *
(1 - dcWiringLossPercent) *
(1 - trackingLossPercent) *
(1 - nameplateLossPercent));
if (groundCoverageRatio < 0.01)
throw exec_error(cmName, "array ground coverage ratio must obey 0.01 < gcr");
monthlySoiling = cm->as_vector_double(prefix + "soiling");
if (monthlySoiling.size() != 12) throw exec_error(cmName, "soiling loss array must have 12 values: subarray " + util::to_string((int)(subarrayNumber)));
//convert from % to derate
for (size_t m = 0; m < monthlySoiling.size(); m++)
monthlySoiling[m] = 1.0 - monthlySoiling[m] / 100.0;
// Shading database
enableSelfShadingOutputs = false;
if (!shadeCalculator.setup(cm, prefix)) {
throw exec_error(cmName, prefix + "_shading: " + shadeCalculator.get_error());
}
shadeMode = cm->as_integer(prefix + "shade_mode");
selfShadingInputs.mod_orient = cm->as_integer(prefix + "mod_orient"); //although these inputs are stored in self-shading structure, they are also used for snow model and bifacial model, so required for all enabled subarrays
selfShadingInputs.nmody = cm->as_integer(prefix + "nmody"); //same as above
selfShadingInputs.nmodx = cm->as_integer(prefix + "nmodx"); //same as above
selfShadingInputs.nstrx = selfShadingInputs.nmodx / nModulesPerString;
poa.nonlinearDCShadingDerate = 1;
selfShadingSkyDiffTable.init(tiltDegrees, groundCoverageRatio);
if (trackMode == irrad::FIXED_TILT || trackMode == irrad::SEASONAL_TILT || (trackMode == irrad::SINGLE_AXIS))
{
if (shadeMode != NO_SHADING)
{
// Calculate the number of rows given the module dimensions of each row.
selfShadingInputs.nrows = (int)floor((nStrings * nModulesPerString) / (selfShadingInputs.nmodx * selfShadingInputs.nmody));
//if nrows comes out to be zero, this will cause a divide by zero error. Give an error in this case.
if (selfShadingInputs.nrows == 0 && nStrings != 0)
throw exec_error(cmName, "Self shading: Number of rows calculated for subarray " + util::to_string(int(subarrayNumber)) + " was zero. Please check your inputs.");
// Otherwise, if self-shading configuration does not have equal number of modules as specified on system design page for that subarray,
// compute dc derate using the self-shading configuration and apply it to the whole subarray. Give warning.
if ((size_t)(selfShadingInputs.nmodx * selfShadingInputs.nmody * selfShadingInputs.nrows) != (size_t)(nStrings * nModulesPerString))
cm->log(util::format("The product of number of modules along side and bottom for subarray %d is not equal to the number of modules in the subarray. Check your inputs for self shading.",
int(subarrayNumber)), SSC_WARNING);
// assume aspect ratio of 1.7 (see variable "aspect_ratio" below to change this assumption)
selfShadingInputs.str_orient = 1; //assume horizontal wiring
selfShadingInputs.mask_angle_calc_method = 0; //assume worst case mask angle calc method
selfShadingInputs.ndiode = 3; //assume 3 diodes- maybe update this assumption based on number of cells in the module?
}
}
// Snow model
subarrayEnableSnow = cm->as_boolean("en_snow_model");
if (subarrayEnableSnow)
{
if (trackMode == irrad::SEASONAL_TILT)
throw exec_error(cmName, "Time-series tilt input may not be used with the snow model at this time: subarray " + util::to_string((int)(subarrayNumber)));
// if tracking mode is 1-axis tracking, don't need to limit tilt angles
if (snowModel.setup(selfShadingInputs.nmody, (float)tiltDegrees, cm->as_double("snow_slide_coefficient"), (trackMode != irrad::SINGLE_AXIS))) {
if (!snowModel.good) {
cm->log(snowModel.msg, SSC_ERROR);
}
}
}
// Initialize module model
std::unique_ptr<Module_IO> tmp(new Module_IO(cm, cmName, 1 - dcLossTotalPercent));
Module = std::move(tmp);
}
}
void Subarray_IO::AssignOutputs(compute_module* cm)
{
//assign output dc loss
double tmp = dcLossTotalPercent * 100;
cm->assign(prefix + "dcloss", var_data((ssc_number_t)tmp));
Module->AssignOutputs(cm);
}
void PVSystem_IO::SetupPOAInput()
{
// Check if a POA model is used, if so load all POA data into the poaData struct
if (Irradiance->radiationMode == irrad::POA_R || Irradiance->radiationMode == irrad::POA_P) {
for (size_t nn = 0; nn < Subarrays.size(); nn++) {
if (!Subarrays[nn]->enable) continue;
std::unique_ptr<poaDecompReq> tmp(new poaDecompReq);
Subarrays[nn]->poa.poaAll = std::move(tmp);
Subarrays[nn]->poa.poaAll->elev = Irradiance->weatherHeader.elev;
if (Irradiance->stepsPerHour > 1) {
Subarrays[nn]->poa.poaAll->stepScale = 'm';
Subarrays[nn]->poa.poaAll->stepSize = 60.0 / Irradiance->stepsPerHour;
}
Subarrays[nn]->poa.poaAll->POA.reserve(Irradiance->numberOfWeatherFileRecords);
Subarrays[nn]->poa.poaAll->inc.reserve(Irradiance->numberOfWeatherFileRecords);
Subarrays[nn]->poa.poaAll->tilt.reserve(Irradiance->numberOfWeatherFileRecords);
Subarrays[nn]->poa.poaAll->zen.reserve(Irradiance->numberOfWeatherFileRecords);
Subarrays[nn]->poa.poaAll->exTer.reserve(Irradiance->numberOfWeatherFileRecords);
for (size_t i = 0; i < Irradiance->numberOfWeatherFileRecords; i++) {
Subarrays[nn]->poa.poaAll->POA.push_back(0);
Subarrays[nn]->poa.poaAll->inc.push_back(0);
Subarrays[nn]->poa.poaAll->tilt.push_back(0);
Subarrays[nn]->poa.poaAll->zen.push_back(0);
Subarrays[nn]->poa.poaAll->exTer.push_back(0);
}
double ts_hour = Simulation->dtHour;
weather_header hdr = Irradiance->weatherHeader;
weather_data_provider* wdprov = Irradiance->weatherDataProvider.get();
weather_record wf = Irradiance->weatherRecord;
wdprov->rewind();
for (size_t ii = 0; ii < Irradiance->numberOfWeatherFileRecords; ii++) {
if (!wdprov->read(&wf)) {
throw exec_error("pvsamv1", "could not read data line " + util::to_string((int)(ii + 1)) + " in weather file while loading POA data");
}
int month_idx = wf.month - 1;
if (Subarrays[nn]->trackMode == irrad::SEASONAL_TILT)
Subarrays[nn]->tiltDegrees = Subarrays[nn]->monthlyTiltDegrees[month_idx]; //overwrite the tilt input with the current tilt to be used in calculations
// save POA data
if (wf.poa > 0)
Subarrays[nn]->poa.poaAll->POA[ii] = wf.poa;
else
Subarrays[nn]->poa.poaAll->POA[ii] = -999;
// Calculate incident angle
double t_cur = wf.hour + wf.minute / 60;
// Calculate sunrise and sunset hours in local standard time for the current day
double sun[9], angle[5];
int tms[3];
static const int dut1 = 0; //leap second, assumed not used for analysis
solarpos_spa(wf.year, wf.month, wf.day, 12, 0.0, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sun);
double t_sunrise = sun[4];
double t_sunset = sun[5];
if (t_sunset > 24) //sunset is legitimately the next day, so recalculate sunset from the previous day
{
double sunanglestemp[9];
if (wf.day > 1) //simply decrement day during month
solarpos_spa(wf.year, wf.month, wf.day - 1, 12, 0.0, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sunanglestemp);
else if (wf.month > 1) //on the 1st of the month, need to switch to the last day of previous month
solarpos_spa(wf.year, wf.month - 1, __nday[wf.month - 2], 12, 0.0, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sunanglestemp);//month is 1-indexed and __nday is 0 indexed
else //on the first day of the year, need to switch to Dec 31 of last year
solarpos_spa(wf.year - 1, 12, 31, 12, 0.0, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sunanglestemp);
//if sunset from yesterday WASN'T today, then it's ok to leave sunset > 24, which will cause the sun to rise today and not set today
if (sunanglestemp[5] >= 24)
t_sunset = sunanglestemp[5] - 24.0;
}
if (t_sunrise < 0) //sunrise is legitimately the previous day, so recalculate for next day
{
double sunanglestemp[9];
if (wf.day < __nday[wf.month - 1]) //simply increment the day during the month, month is 1-indexed and __nday is 0-indexed
solarpos_spa(wf.year, wf.month, wf.day + 1, 12, 0.0, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sunanglestemp);
else if (wf.month < 12) //on the last day of the month, need to switch to the first day of the next month
solarpos_spa(wf.year, wf.month + 1, 1, 12, 0.0, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sunanglestemp);
else //on the last day of the year, need to switch to Jan 1 of the next year
solarpos_spa(wf.year + 1, 1, 1, 12, 0.0, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sunanglestemp);
//if sunrise from tomorrow isn't today, then it's ok to leave sunrise < 0, which will cause the sun to set at the right time and not rise until tomorrow
if (sunanglestemp[4] < 0)
t_sunrise = sunanglestemp[4] + 24.0;
}
// time step encompasses the sunrise
if (t_cur >= t_sunrise - ts_hour / 2.0 && t_cur < t_sunrise + ts_hour / 2.0)
{
double t_calc = (t_sunrise + (t_cur + ts_hour / 2.0)) / 2.0; // midpoint of sunrise and end of timestep
int hr_calc = (int)t_calc;
double min_calc = (t_calc - hr_calc) * 60.0;
tms[0] = hr_calc;
tms[1] = (int)min_calc;
solarpos_spa(wf.year, wf.month, wf.day, hr_calc, min_calc, 0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sun);
tms[2] = 2;
}
// timestep encompasses the sunset
else if (t_cur > t_sunset - ts_hour / 2.0 && t_cur <= t_sunset + ts_hour / 2.0)
{
double t_calc = ((t_cur - ts_hour / 2.0) + t_sunset) / 2.0; // midpoint of beginning of timestep and sunset
int hr_calc = (int)t_calc;
double min_calc = (t_calc - hr_calc) * 60.0;
tms[0] = hr_calc;
tms[1] = (int)min_calc;
solarpos_spa(wf.year, wf.month, wf.day, hr_calc, min_calc, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sun);
tms[2] = 3;
}
// timestep is not sunrise nor sunset, but sun is up (calculate position at provided t_cur)
else if ((t_sunrise < t_sunset && t_cur >= t_sunrise && t_cur <= t_sunset) || //this captures normal daylight cases
(t_sunrise > t_sunset && (t_cur <= t_sunset || t_cur >= t_sunrise))) //this captures cases where sunset (from previous day) is 1:30AM, sunrise 2:30AM, in arctic circle
{
// timestep is not sunrise nor sunset, but sun is up (calculate position at provided t_cur)
tms[0] = wf.hour;
tms[1] = (int)wf.minute;
solarpos_spa(wf.year, wf.month, wf.day, wf.hour, wf.minute, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sun);
tms[2] = 1;
}
else
{
// sun is down, assign sundown values
solarpos_spa(wf.year, wf.month, wf.day, wf.hour, wf.minute, 0.0, hdr.lat, hdr.lon, hdr.tz, dut1, hdr.elev, wf.pres, wf.tdry, 0, 180, sun);
tms[0] = wf.hour;
tms[1] = (int)wf.minute;
tms[2] = 0;
}
if (tms[2] > 0) {
incidence(Subarrays[nn]->trackMode, Subarrays[nn]->tiltDegrees, Subarrays[nn]->azimuthDegrees, Subarrays[nn]->trackerRotationLimitDegrees, sun[1], sun[0], Subarrays[nn]->backtrackingEnabled, Subarrays[nn]->groundCoverageRatio, Subarrays[nn]->slopeTilt, Subarrays[nn]->slopeAzm, false, 0.0, false, 0.0, angle);
}
else {
angle[0] = -999;
angle[1] = -999;
angle[2] = -999;
angle[3] = -999;
angle[4] = -999;
}
Subarrays[nn]->poa.poaAll->inc[ii] = angle[0];
Subarrays[nn]->poa.poaAll->tilt[ii] = angle[1];
Subarrays[nn]->poa.poaAll->zen[ii] = sun[1];
Subarrays[nn]->poa.poaAll->exTer[ii] = sun[8];
}
wdprov->rewind();
}
}
}
PVSystem_IO::PVSystem_IO(compute_module* cm, std::string cmName, Simulation_IO* SimulationIO, Irradiance_IO* IrradianceIO, std::vector<Subarray_IO*> SubarraysAll, Inverter_IO* InverterIO)
{
Irradiance = IrradianceIO;
Simulation = SimulationIO;
Subarrays = SubarraysAll;
Inverter = InverterIO;
numberOfSubarrays = Subarrays.size();
stringsInParallel = 0;
for (size_t s = 0; s < numberOfSubarrays; s++) {
stringsInParallel += static_cast<int>(Subarrays[s]->nStrings);
}
numberOfInverters = cm->as_integer("inverter_count");
dcNameplate = cm->as_double("system_capacity");
numberOfInvertersClipping = dcNameplate / (Inverter->ratedACOutput / 1000);
if (numberOfInvertersClipping == 0.0) numberOfInvertersClipping = 1;
ratedACOutput = Inverter->ratedACOutput * numberOfInverters;
acDerate = 1 - cm->as_double("acwiring_loss") / 100;
acLossPercent = (1 - acDerate) * 100;
transmissionDerate = 1 - cm->as_double("transmission_loss") / 100;
transmissionLossPercent = (1 - transmissionDerate) * 100;
enableDCLifetimeLosses = cm->as_boolean("en_dc_lifetime_losses");
enableACLifetimeLosses = cm->as_boolean("en_ac_lifetime_losses");
enableSnowModel = cm->as_boolean("en_snow_model");
// The shared inverter of the PV array and a tightly-coupled DC connected battery
std::unique_ptr<SharedInverter> tmpSharedInverter(new SharedInverter(Inverter->inverterType, numberOfInverters, &Inverter->sandiaInverter, &Inverter->partloadInverter, &Inverter->ondInverter, numberOfInvertersClipping));
m_sharedInverter = std::move(tmpSharedInverter);
// Register shared inverter with inverter_IO
InverterIO->setupSharedInverter(cm, m_sharedInverter.get());
// PV Degradation, place into intermediate variable since pointer outputs are not allocated yet
if (Simulation->useLifetimeOutput)
{
std::vector<double> dc_degrad = cm->as_vector_double("dc_degradation");
// degradation assumed to start at year 2, so the first value should be 1.0
dcDegradationFactor.push_back(1.0);
bool warningFlag = false;
if (dc_degrad.size() == 1)
{
for (size_t i = 1; i < Simulation->numberOfYears; i++)
{
dcDegradationFactor.push_back(1.0 - (dc_degrad[0] * i) / 100.0);
if (dcDegradationFactor[i] < 0.0)
{
dcDegradationFactor[i] = 0.0;
warningFlag = true;
}
}
}
else if (dc_degrad.size() > 0)
{
for (size_t i = 1; i < Simulation->numberOfYears && i < dc_degrad.size(); i++)
{
dcDegradationFactor.push_back(1.0 - dc_degrad[i] / 100.0);
if (dcDegradationFactor[i] < 0.0)
{
dcDegradationFactor[i] = 0.0;
warningFlag = true;
}
}
}
if (warningFlag) cm->log("Degradation calculated to be greater than 100% for one or more years and set to 100% for those years.", SSC_WARNING);
//read in optional DC and AC lifetime daily losses, error check length of arrays
if (enableDCLifetimeLosses)
{
if (!Simulation->annualSimulation)
throw exec_error(cmName, "Lifetime daily losses cannot be entered with non-annual weather data");
dcLifetimeLosses = cm->as_vector_double("dc_lifetime_losses");
if (dcLifetimeLosses.size() != Simulation->numberOfYears * 365)
throw exec_error(cmName, "Length of the lifetime daily DC losses array must be equal to the analysis period * 365 days/year");
}
if (enableACLifetimeLosses)
{
if (!Simulation->annualSimulation)
throw exec_error(cmName, "Lifetime daily losses cannot be entered with non-annual weather data");
acLifetimeLosses = cm->as_vector_double("ac_lifetime_losses");
if (acLifetimeLosses.size() != Simulation->numberOfYears * 365)
throw exec_error(cmName, "Length of the lifetime daily AC losses array must be equal to the analysis period * 365 days/year");
}
}
// Transformer losses
transformerLoadLossFraction = cm->as_number("transformer_load_loss") * (ssc_number_t)(util::percent_to_fraction);
transformerNoLoadLossFraction = cm->as_number("transformer_no_load_loss") * (ssc_number_t)(util::percent_to_fraction);
// Determine whether MPPT clipping should be enabled or not
clipMpptWindow = false;
if (InverterIO->mpptLowVoltage > 0 && InverterIO->mpptHiVoltage > InverterIO->mpptLowVoltage)
{
int modulePowerModel = Subarrays[0]->Module->modulePowerModel;
if (modulePowerModel == 1 // cec with database
|| modulePowerModel == 2 // cec with user specs
|| modulePowerModel == 4 // iec61853 single diode
|| modulePowerModel == 5) // PVYield single diode
{
clipMpptWindow = true;
}
else
{
cm->log("The simple efficiency and Sandia module models do not allow limiting module voltage to the MPPT tracking range of the inverter.", SSC_NOTICE);
}
}
else
{
cm->log("Inverter MPPT voltage tracking window not defined - modules always operate at MPPT.", SSC_NOTICE);
}
// Check that system MPPT inputs align correctly
for (size_t n_subarray = 0; n_subarray < numberOfSubarrays; n_subarray++) {
if (Subarrays[n_subarray]->enable) {
if (Subarrays[n_subarray]->mpptInput > (int)Inverter->nMpptInputs)
throw exec_error(cmName, "Subarray " + util::to_string((int)n_subarray) + " MPPT input is greater than the number of inverter MPPT inputs.");
}
}
for (size_t mppt = 1; mppt <= (size_t)Inverter->nMpptInputs; mppt++) //indexed at 1 to match mppt input numbering convention
{
std::vector<int> mppt_n; //create a temporary vector to hold which subarrays are on this mppt input
//find all subarrays on this mppt input
for (size_t n_subarray = 0; n_subarray < Subarrays.size(); n_subarray++) //jmf update this so that all subarray markers are consistent, get rid of "enable" check
if (Subarrays[n_subarray]->enable)
if (Subarrays[n_subarray]->mpptInput == (int)mppt)
mppt_n.push_back((int)n_subarray);
if (mppt_n.size() < 1)
throw exec_error(cmName, "At least one subarray must be assigned to each inverter MPPT input.");
mpptMapping.push_back(mppt_n); //add the subarrays on this input to the total mppt mapping vector
}
// Only one multi-MPPT inverter is allowed at the moment
if (Inverter->nMpptInputs > 1 && numberOfInverters > 1)
throw exec_error(cmName, "At this time, only one multiple-MPPT-input inverter may be modeled per system. See help for details.");
//Subarray mismatch calculations
enableMismatchVoltageCalc = cm->as_boolean("enable_mismatch_vmax_calc");
if (enableMismatchVoltageCalc &&
Subarrays[0]->Module->modulePowerModel != MODULE_CEC_DATABASE &&
Subarrays[0]->Module->modulePowerModel != MODULE_CEC_USER_INPUT &&
Subarrays[0]->Module->modulePowerModel != MODULE_IEC61853) {
throw exec_error(cmName, "String level subarray mismatch can only be calculated using a single-diode based module model.");
}
if (enableMismatchVoltageCalc && numberOfSubarrays <= 1)
throw exec_error(cmName, "Subarray voltage mismatch calculation requires more than one subarray. Please check your inputs.");
// Setup POA inputs if needed
SetupPOAInput();
}
void PVSystem_IO::AllocateOutputs(compute_module* cm)
{
size_t numberOfWeatherFileRecords = Irradiance->numberOfWeatherFileRecords;
if (Simulation->saveLifetimeVars == 1) {
numberOfWeatherFileRecords = Simulation->numberOfSteps;
}
size_t numberOfLifetimeRecords = Simulation->numberOfSteps;
size_t numberOfYears = Simulation->numberOfYears;
for (size_t subarray = 0; subarray < Subarrays.size(); subarray++)
{
if (Subarrays[subarray]->enable)
{
std::string prefix = Subarrays[subarray]->prefix;
p_angleOfIncidence.push_back(cm->allocate(prefix + "aoi", numberOfWeatherFileRecords));
p_angleOfIncidenceModifier.push_back(cm->allocate(prefix + "aoi_modifier", numberOfWeatherFileRecords));
p_surfaceTilt.push_back(cm->allocate(prefix + "surf_tilt", numberOfWeatherFileRecords));
p_surfaceAzimuth.push_back(cm->allocate(prefix + "surf_azi", numberOfWeatherFileRecords));
p_axisRotation.push_back(cm->allocate(prefix + "axisrot", numberOfWeatherFileRecords));
p_idealRotation.push_back(cm->allocate(prefix + "idealrot", numberOfWeatherFileRecords));
p_poaNominalFront.push_back(cm->allocate(prefix + "poa_nom", numberOfWeatherFileRecords));
p_poaShadedFront.push_back(cm->allocate(prefix + "poa_shaded", numberOfWeatherFileRecords));
p_poaShadedSoiledFront.push_back(cm->allocate(prefix + "poa_shaded_soiled", numberOfWeatherFileRecords));
p_poaBeamFront.push_back(cm->allocate(prefix + "poa_eff_beam", numberOfWeatherFileRecords));
p_poaDiffuseFront.push_back(cm->allocate(prefix + "poa_eff_diff", numberOfWeatherFileRecords));
p_poaTotal.push_back(cm->allocate(prefix + "poa_eff", numberOfWeatherFileRecords));
p_poaRear.push_back(cm->allocate(prefix + "poa_rear", numberOfWeatherFileRecords));
p_poaRearSpatial.push_back(cm->allocate(prefix + "poa_rear_spatial", Irradiance->weatherDataProvider->nrecords() + 1, irrad::poaRearIrradRes + 1)); // +1 for row/col labels
p_groundRear.push_back(cm->allocate(prefix + "ground_rear_spatial", Irradiance->weatherDataProvider->nrecords() + 1, irrad::groundIrradOutputRes + 1)); // +1 for row/col labels
p_poaFront.push_back(cm->allocate(prefix + "poa_front", numberOfWeatherFileRecords));
p_derateSoiling.push_back(cm->allocate(prefix + "soiling_derate", numberOfWeatherFileRecords));
p_beamShadingFactor.push_back(cm->allocate(prefix + "beam_shading_factor", numberOfWeatherFileRecords));
p_temperatureCell.push_back(cm->allocate(prefix + "celltemp", numberOfWeatherFileRecords));
p_temperatureCellSS.push_back(cm->allocate(prefix + "celltempSS", numberOfWeatherFileRecords));
p_moduleEfficiency.push_back(cm->allocate(prefix + "modeff", numberOfWeatherFileRecords));
p_dcStringVoltage.push_back(cm->allocate(prefix + "dc_voltage", numberOfWeatherFileRecords));
p_voltageOpenCircuit.push_back(cm->allocate(prefix + "voc", numberOfWeatherFileRecords));
p_currentShortCircuit.push_back(cm->allocate(prefix + "isc", numberOfWeatherFileRecords));
p_dcPowerGross.push_back(cm->allocate(prefix + "dc_gross", numberOfWeatherFileRecords));
p_derateLinear.push_back(cm->allocate(prefix + "linear_derate", numberOfWeatherFileRecords));
p_derateSelfShading.push_back(cm->allocate(prefix + "ss_derate", numberOfWeatherFileRecords));
p_derateSelfShadingDiffuse.push_back(cm->allocate(prefix + "ss_diffuse_derate", numberOfWeatherFileRecords));
p_derateSelfShadingReflected.push_back(cm->allocate(prefix + "ss_reflected_derate", numberOfWeatherFileRecords));
p_DNIIndex.push_back(cm->allocate(prefix + "dni_index", numberOfWeatherFileRecords));
p_poaBeamFrontCS.push_back(cm->allocate(prefix + "poa_beam_front_cs", numberOfWeatherFileRecords));
p_poaDiffuseFrontCS.push_back(cm->allocate(prefix + "poa_diffuse_front_cs", numberOfWeatherFileRecords));
p_poaGroundFrontCS.push_back(cm->allocate(prefix + "poa_ground_front_cs", numberOfWeatherFileRecords));
p_poaRearCS.push_back(cm->allocate(prefix + "poa_rear_cs", numberOfWeatherFileRecords));
if (enableSnowModel) {
p_snowLoss.push_back(cm->allocate(prefix + "snow_loss", numberOfWeatherFileRecords));
p_snowCoverage.push_back(cm->allocate(prefix + "snow_coverage", numberOfWeatherFileRecords));
}
if (Subarrays[subarray]->enableSelfShadingOutputs)
{
// ShadeDB validation
p_shadeDB_GPOA.push_back(cm->allocate("shadedb_" + prefix + "gpoa", numberOfWeatherFileRecords));
p_shadeDB_DPOA.push_back(cm->allocate("shadedb_" + prefix + "dpoa", numberOfWeatherFileRecords));
p_shadeDB_temperatureCell.push_back(cm->allocate("shadedb_" + prefix + "pv_cell_temp", numberOfWeatherFileRecords));
p_shadeDB_modulesPerString.push_back(cm->allocate("shadedb_" + prefix + "mods_per_str", numberOfWeatherFileRecords));
p_shadeDB_voltageMaxPowerSTC.push_back(cm->allocate("shadedb_" + prefix + "str_vmp_stc", numberOfWeatherFileRecords));
p_shadeDB_voltageMPPTLow.push_back(cm->allocate("shadedb_" + prefix + "mppt_lo", numberOfWeatherFileRecords));
p_shadeDB_voltageMPPTHigh.push_back(cm->allocate("shadedb_" + prefix + "mppt_hi", numberOfWeatherFileRecords));
}
p_shadeDBShadeFraction.push_back(cm->allocate("shadedb_" + prefix + "shade_frac", numberOfWeatherFileRecords));
}
}
for (size_t mppt_input = 0; mppt_input < Inverter->nMpptInputs; mppt_input++)
{
p_mpptVoltage.push_back(cm->allocate("inverterMppt" + std::to_string(mppt_input + 1) + "_DCVoltage", numberOfLifetimeRecords));
p_dcPowerNetPerMppt.push_back(cm->allocate("inverterMppt" + std::to_string(mppt_input + 1) + "_NetDCPower", numberOfLifetimeRecords));
}
p_transformerNoLoadLoss = cm->allocate("xfmr_nll_ts", numberOfWeatherFileRecords);
p_transformerLoadLoss = cm->allocate("xfmr_ll_ts", numberOfWeatherFileRecords);
p_transformerLoss = cm->allocate("xfmr_loss_ts", numberOfWeatherFileRecords);
p_poaFrontNominalTotal = cm->allocate("poa_nom", numberOfWeatherFileRecords);
p_poaFrontBeamNominalTotal = cm->allocate("poa_beam_nom", numberOfWeatherFileRecords);
p_poaFrontBeamTotal = cm->allocate("poa_beam_eff", numberOfWeatherFileRecords);
p_poaFrontShadedTotal = cm->allocate("poa_shaded", numberOfWeatherFileRecords);
p_poaFrontShadedSoiledTotal = cm->allocate("poa_shaded_soiled", numberOfWeatherFileRecords);
p_poaFrontTotal = cm->allocate("poa_front", numberOfWeatherFileRecords);
p_poaRearTotal = cm->allocate("poa_rear", numberOfWeatherFileRecords);
p_groundIncidentTotal = cm->allocate("ground_incident", numberOfWeatherFileRecords);
p_groundAbsorbedTotal = cm->allocate("ground_absorbed", numberOfWeatherFileRecords);
p_poaRearGroundReflectedTotal = cm->allocate("poa_rear_ground_reflected", numberOfWeatherFileRecords);
p_poaRearRowReflectionsTotal = cm->allocate("poa_rear_row_reflections", numberOfWeatherFileRecords);
p_poaRearDirectDiffuseTotal = cm->allocate("poa_rear_direct_diffuse", numberOfWeatherFileRecords);
p_poaRearSelfShadedTotal = cm->allocate("poa_rear_self_shaded", numberOfWeatherFileRecords);
p_poaRackShadedTotal = cm->allocate("poa_rear_rack_shaded", numberOfWeatherFileRecords);
p_poaRearSoiledTotal = cm->allocate("poa_rear_soiled", numberOfWeatherFileRecords);
p_bifacialElectricalMismatchTotal = cm->allocate("bifacial_electrical_mismatch", numberOfWeatherFileRecords);
p_poaTotalAllSubarrays = cm->allocate("poa_eff", numberOfWeatherFileRecords);
p_snowLossTotal = cm->allocate("dc_snow_loss", numberOfWeatherFileRecords);
p_inverterEfficiency = cm->allocate("inv_eff", numberOfWeatherFileRecords);
p_inverterClipLoss = cm->allocate("inv_cliploss", numberOfWeatherFileRecords);
p_inverterMPPTLoss = cm->allocate("dc_invmppt_loss", numberOfWeatherFileRecords);
p_inverterPowerConsumptionLoss = cm->allocate("inv_psoloss", numberOfWeatherFileRecords);
p_inverterNightTimeLoss = cm->allocate("inv_pntloss", numberOfWeatherFileRecords);
p_inverterThermalLoss = cm->allocate("inv_tdcloss", numberOfWeatherFileRecords);
p_inverterTotalLoss = cm->allocate("inv_total_loss", numberOfWeatherFileRecords);
p_inverterACOutputPreLoss = cm->allocate("ac_gross", numberOfWeatherFileRecords);
p_acWiringLoss = cm->allocate("ac_wiring_loss", numberOfWeatherFileRecords);
p_ClippingPotential = cm->allocate("clipping_potential", numberOfWeatherFileRecords);
p_CPBin = cm->allocate("clipping_potential_bin", numberOfWeatherFileRecords);
p_DNIIndexBin = cm->allocate("dni_index_bin", numberOfWeatherFileRecords);
p_transmissionLoss = cm->allocate("ac_transmission_loss", numberOfWeatherFileRecords);
p_acPerfAdjLoss = cm->allocate("ac_perf_adj_loss", numberOfWeatherFileRecords);
p_acLifetimeLoss = cm->allocate("ac_lifetime_loss", numberOfWeatherFileRecords);
p_dcLifetimeLoss = cm->allocate("dc_lifetime_loss", numberOfWeatherFileRecords);
p_systemDCPower = cm->allocate("dc_net", numberOfLifetimeRecords);
p_systemACPower = cm->allocate("gen", numberOfLifetimeRecords);
p_systemACPowerMax = cm->allocate("ac_csky_max", numberOfLifetimeRecords);
p_systemDCPowerCS = cm->allocate("dc_net_clearsky", numberOfLifetimeRecords);
if (cm->as_boolean("enable_subhourly_clipping")) {
p_subhourlyClippingLoss = cm->allocate("subhourly_clipping_loss", numberOfLifetimeRecords);
}
if (cm->as_boolean("enable_subinterval_distribution")) {
p_DistributionClippingLoss = cm->allocate("distribution_clipping_loss", numberOfLifetimeRecords);
}
if (Simulation->useLifetimeOutput)
{
p_dcDegradationFactor = cm->allocate("dc_degrade_factor", numberOfYears);
}
}
Module_IO::Module_IO(compute_module* cm, std::string cmName, double dcLoss)
{
modulePowerModel = cm->as_integer("module_model");
simpleEfficiencyForceNoPOA = false;
mountingSpecificCellTemperatureForceNoPOA = false;
selfShadingFillFactor = 0;
isConcentratingPV = false;