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sam_mw_pt_heliostatfield.cpp
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sam_mw_pt_heliostatfield.cpp
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#define _TCSTYPEINTERFACE_
#include "tcstype.h"
//#include <shared/lib_util.h>
#include "lib_util.h"
//#include "shared/lib_weatherfile.h"
#include "lib_weatherfile.h"
#include <algorithm>
#include "interpolation_routines.h"
#include "AutoPilot_API.h"
#include "IOUtil.h"
#include "sort_method.h"
#include "Heliostat.h"
#include <sstream>
using namespace std;
static bool solarpilot_callback( simulation_info *siminfo, void *data );
/*
A self-contained heliostat field type that directly calls SolarPilot through the AutoPilot API. The user
may optionally specify the heliostat field positions or may use this type to generate positions based on
input parameters.
This type can be run in three different modes.
----------------------------------------------------------------------------------------------------------------------
Parameters
----------------------------------------------------------------------------------------------------------------------
--- RUN_TYPE::AUTO --- SolarPILOT automatic mode
** Generate field layout and characterize performance with user-specified macro-geometry **
#######################################################################################################
No. | Item | Variable | Units | Note
----- INPUTS ------------------------------------------------------------------------------------------
0 | Run type | run_type | - | enum RUN_TYPE
1 | Heliostat width | helio_width | m |
2 | Heliostat height | helio_height | m |
3 | Heliostat optical error | helio_optical_error | rad |
4 | Heliostat active frac. | helio_active_fraction | - |
5 | Heliostat reflectance | helio_reflectance | - |
6 | Receiver absorptance | rec_absorptance | - |
7 | Receiver height | rec_height | m |
8 | Receiver aspect ratio | rec_aspect | - | (H/W)
9 | Receiver design heatloss | rec_hl_perm2 | kW/m2 |
10 | Field thermal power rating | q_design | kW |
11 | Tower height | h_tower | m |
12 | Weather file name | weather_file | - | String
13 | Land boundary type | land_bound_type | - | (sp_layout::LAND_BOUND_TYPE)
14 | Land max boundary | land_max | - OR m | X tower heights OR fixed radius
15 | Land min boundary | land_min | - OR m | X tower heights OR fixed radius
16 | <>Land boundary table | land_bound_table | m | Polygon {{x1,y1},{x2,y2},...}
17 | <>Boundary table listing | land_bound_list | - | Poly. sizes (- if exclusion) {L1,-L2,...}
18 | Heliostat startup energy | p_start | kWe-hr |
19 | Heliostat tracking energy | p_track | kWe |
20 | Stow/deploy elevation | hel_stow_deploy | deg |
21 | Max. wind velocity | v_wind_max | m/s |
22 | <>Interpolation nugget | interp_nug | - |
23 | <>Interpolation beta coef. | interp_beta | - |
24 | Flux map X resolution | n_flux_x | - |
25 | Flux map Y resolution | n_flux_y | - |
----- Parameters set on Init() ------------------------------------------------------------------------
26 | Heliostat position table | helio_positions | m | {{x1,y1,z1},...}
27 | <>Heliostat aim point table | helio_aim_points | m | {{x1,y1,z1},...} receiver coordinates
28 | Number of heliostats | N_hel | - |
29 | Field efficiency array | eta_map | deg,deg,- | {{az1,el1,eff1},{az2,...}}
30 | Flux map sun positions | flux_positions | deg,deg | {{az1,el1},{az2,...}}
31 | Flux map intensities | flux_maps | - | {{f11,f12,f13...},{f21,f22...}..}
########################################################################################################
<> = Optional
--- RUN_TYPE::USER_FIELD --- SolarPILOT user-field mode
** User specifies heliostat positions, macro geometry, annual performance characterized internally **
################# Required inputs ####################################################################
No. | Item | Variable | Units | Note
-------------------------------------------------------------------------------------------------------
0 | Run type | run_type | - | enum RUN_TYPE
1 | Heliostat width | helio_width | m |
2 | Heliostat height | helio_height | m |
3 | Heliostat optical error | helio_optical_error | rad |
4 | Heliostat active frac. | helio_active_fraction | - |
5 | Heliostat reflectance | helio_reflectance | - |
6 | Receiver absorptance | rec_absorptance | - |
7 | Receiver height | rec_height | m |
8 | Receiver aspect ratio | rec_aspect | - | (H/W)
9 | Receiver design heatloss | rec_hl_perm2 | kW/m2 |
10 | Field thermal power rating | q_design | kW |
11 | Tower height | h_tower | m |
12 | Weather file name | weather_file | - | String
13 | Land boundary type | land_bound_type | - | (sp_layout::LAND_BOUND_TYPE)
14 | Land max boundary | land_max | - OR m | X tower heights OR fixed radius
15 | Land min boundary | land_min | - OR m | X tower heights OR fixed radius
16 | <>Land boundary table | land_bound_table | m | Polygon {{x1,y1},{x2,y2},...}
17 | <>Boundary table listing | land_bound_list | - | Poly. sizes (- if exclusion) {L1,-L2,...}
18 | Heliostat startup energy | p_start | kWe-hr |
19 | Heliostat tracking energy | p_track | kWe |
20 | Stow/deploy elevation | hel_stow_deploy | deg |
21 | Max. wind velocity | v_wind_max | m/s |
22 | <>Interpolation nugget | interp_nug | - |
23 | <>Interpolation beta coef. | interp_beta | - |
24 | Flux map X resolution | n_flux_x | - |
25 | Flux map Y resolution | n_flux_y | - |
26 | Atm. atten coef 0 | c_atm_0 | - |
27 | Atm. atten coef 1 | c_atm_1 | 1/km |
28 | Atm. atten coef 2 | c_atm_2 | 1/km^2 |
29 | Atm. atten coef 3 | c_atm_3 | 1/km^3 |
30 | Number of helio. facets X | n_facet_x | - |
31 | Number of helio. facets Y | n_facet_y | - |
32 | Helio. canting type | cant_type | - | 0=Flat, 1=Ideal, 2=Equinox, 3=Summer sol., 4=Winter sol
33 | Helio. focus type | focus_type | - | 0=Flat, 1=Ideal
34 | Heliostat position table | helio_positions | m | {{x1,y1,z1},...}
35 | <>Heliostat aim point table | helio_aim_points | m | {{x1,y1,z1},...} receiver coordinates
----- Parameters set on Init() ------------------------------------------------------------------------
36 | <>Heliostat aim point table | helio_aim_points | m | {{x1,y1,z1},...} receiver coordinates
37 | Number of heliostats | N_hel | - |
38 | Field efficiency array | eta_map | deg,deg,- | {{az1,el1,eff1},{az2,...}}
39 | Flux map sun positions | flux_positions | deg,deg | {{az1,el1},{az2,...}}
40 | Flux map intensities | flux_maps | - | {{f11,f12,f13...},{f21,f22...}..}
########################################################################################################
<> = Optional
--- RUN_TYPE::USER_DATA --- User-data mode
** User specifies field efficiency and flux intensity on the receiver vs. sun position. No SolarPILOT runs **
################# Required inputs ####################################################################
No. | Item | Variable | Units | Note
-------------------------------------------------------------------------------------------------------
0 | Run type | run_type | - | enum RUN_TYPE
11 | Tower height | h_tower | m |
12 | Weather file name | weather_file | - | String
13 | Land boundary type | land_bound_type | - | (sp_layout::LAND_BOUND_TYPE)
14 | Land max boundary | land_max | - OR m | X tower heights OR fixed radius
15 | Land min boundary | land_min | - OR m | X tower heights OR fixed radius
16 | <>Land boundary table | land_bound_table | m | Polygon {{x1,y1},{x2,y2},...}
17 | <>Boundary table listing | land_bound_list | - | Poly. sizes (- if exclusion) {L1,-L2,...}
18 | Heliostat startup energy | p_start | kWe-hr |
19 | Heliostat tracking energy | p_track | kWe |
20 | Stow/deploy elevation | hel_stow_deploy | deg |
21 | Max. wind velocity | v_wind_max | m/s |
22 | <>Interpolation nugget | interp_nug | - |
23 | <>Interpolation beta coef. | interp_beta | - |
24 | Flux map X resolution | n_flux_x | - |
25 | Flux map Y resolution | n_flux_y | - |
28 | Number of heliostats | N_hel | - |
29 | Field efficiency array | eta_map | deg,deg,- | {{az1,el1,eff1},{az2,...}}
30 | Flux map sun positions | flux_positions | deg,deg | {{az1,el1},{az2,...}}
31 | Flux map intensities | flux_maps | - | {{f11,f12,f13...},{f21,f22...}..}
32 | Atm. atten coef 0 | c_atm_0 | - |
33 | Atm. atten coef 1 | c_atm_1 | 1/km |
34 | Atm. atten coef 2 | c_atm_2 | 1/km^2 |
35 | Atm. atten coef 3 | c_atm_3 | 1/km^3 |
36 | Number of helio. facets X | n_facet_x | - |
37 | Number of helio. facets Y | n_facet_y | - |
38 | Helio. canting type | cant_type | - | 0=Flat, 1=Ideal, 2=Equinox, 3=Summer sol., 4=Winter sol
39 | Helio. focus type | focus_type | - | 0=Flat, 1=Ideal
----- Parameters set on Init() ------------------------------------------------------------------------
None
########################################################################################################
<> = Optional
Note:
Annual efficiency is generated using non-uniform sun position spacing. The method implemented to handle
interpolation of non-uniform data is Gauss-Markov estimation (Kriging), with parameters set to induce
nearly linear interpolation that maintains fit fidelity with the original data.
*/
enum{ //Parameters
P_run_type,
P_helio_width,
P_helio_height,
P_helio_optical_error,
P_helio_active_fraction,
P_dens_mirror,
P_helio_reflectance,
P_rec_absorptance,
P_rec_height,
P_rec_aspect,
P_rec_hl_perm2,
P_q_design,
P_h_tower,
P_weather_file,
P_land_bound_type,
P_land_max,
P_land_min,
P_land_bound_table,
P_land_bound_list,
P_p_start,
P_p_track,
P_hel_stow_deploy,
P_v_wind_max,
P_interp_nug,
P_interp_beta,
P_n_flux_x,
P_n_flux_y,
P_helio_positions,
P_helio_aim_points,
P_N_hel,
P_eta_map,
P_flux_positions,
P_flux_maps,
P_c_atm_0,
P_c_atm_1,
P_c_atm_2,
P_c_atm_3,
P_n_facet_x,
P_n_facet_y,
P_cant_type,
P_focus_type,
P_n_flux_days,
P_delta_flux_hrs,
P_dni_des,
P_land_area,
//Inputs
I_v_wind,
I_field_control,
I_solaz,
I_solzen,
//Outputs
O_pparasi,
O_eta_field,
O_flux_map,
//N_MAX
N_MAX};
tcsvarinfo sam_mw_pt_heliostatfield_variables[] = {
{ TCS_PARAM, TCS_NUMBER, P_run_type, "run_type", "Run type", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_helio_width, "helio_width", "Heliostat width", "m", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_helio_height, "helio_height", "Heliostat height", "m", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_helio_optical_error, "helio_optical_error", "Heliostat optical error", "rad", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_helio_active_fraction, "helio_active_fraction", "Heliostat active frac.", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_dens_mirror, "dens_mirror", "Ratio of reflective area to profile", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_helio_reflectance, "helio_reflectance", "Heliostat reflectance", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_rec_absorptance, "rec_absorptance", "Receiver absorptance", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_rec_height, "rec_height", "Receiver height", "m", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_rec_aspect, "rec_aspect", "Receiver aspect ratio", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_rec_hl_perm2, "rec_hl_perm2", "Receiver design heatloss", "kW/m2", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_q_design, "q_design", "Field thermal power rating", "kW", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_h_tower, "h_tower", "Tower height", "m", "", "", "" },
{ TCS_PARAM, TCS_STRING, P_weather_file, "weather_file", "Weather file location", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_land_bound_type, "land_bound_type", "Land boundary type", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_land_max, "land_max", "Land max boundary", "- OR m", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_land_min, "land_min", "Land min boundary", "- OR m", "", "", "" },
{ TCS_PARAM, TCS_MATRIX, P_land_bound_table, "land_bound_table", "Land boundary table", "m", "", "", "" },
{ TCS_PARAM, TCS_ARRAY, P_land_bound_list, "land_bound_list", "Boundary table listing", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_p_start, "p_start", "Heliostat startup energy", "kWe-hr", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_p_track, "p_track", "Heliostat tracking energy", "kWe", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_hel_stow_deploy, "hel_stow_deploy", "Stow/deploy elevation", "deg", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_v_wind_max, "v_wind_max", "Max. wind velocity", "m/s", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_interp_nug, "interp_nug", "Interpolation nugget", "-", "", "", "0.0" },
{ TCS_PARAM, TCS_NUMBER, P_interp_beta, "interp_beta", "Interpolation beta coef.", "-", "", "", "1.99" },
{ TCS_PARAM, TCS_NUMBER, P_n_flux_x, "n_flux_x", "Flux map X resolution", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_n_flux_y, "n_flux_y", "Flux map Y resolution", "-", "", "", "" },
{ TCS_PARAM, TCS_MATRIX, P_helio_positions, "helio_positions", "Heliostat position table", "m", "", "", "" },
{ TCS_PARAM, TCS_MATRIX, P_helio_aim_points, "helio_aim_points", "Heliostat aim point table", "m", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_N_hel, "N_hel", "Number of heliostats", "-", "", "", "" },
{ TCS_PARAM, TCS_MATRIX, P_eta_map, "eta_map", "Field efficiency array", "-", "", "", "" },
{ TCS_PARAM, TCS_MATRIX, P_flux_positions, "flux_positions", "Flux map sun positions", "deg", "", "", "" },
{ TCS_PARAM, TCS_MATRIX, P_flux_maps, "flux_maps", "Flux map intensities", "-", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_c_atm_0, "c_atm_0", "Attenuation coefficient 0", "", "", "", "0.006789" },
{ TCS_PARAM, TCS_NUMBER, P_c_atm_0, "c_atm_1", "Attenuation coefficient 1", "", "", "", "0.1046" },
{ TCS_PARAM, TCS_NUMBER, P_c_atm_0, "c_atm_2", "Attenuation coefficient 2", "", "", "", "-0.0107" },
{ TCS_PARAM, TCS_NUMBER, P_c_atm_0, "c_atm_3", "Attenuation coefficient 3", "", "", "", "0.002845" },
{ TCS_PARAM, TCS_NUMBER, P_n_facet_x, "n_facet_x", "Number of heliostat facets - X", "", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_n_facet_y, "n_facet_y", "Number of heliostat facets - Y", "", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_cant_type, "cant_type", "Heliostat cant method", "", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_focus_type, "focus_type", "Heliostat focus method", "", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_n_flux_days, "n_flux_days", "No. days in flux map lookup", "", "", "", "8" },
{ TCS_PARAM, TCS_NUMBER, P_delta_flux_hrs, "delta_flux_hrs", "Hourly frequency in flux map lookup", "hrs", "", "", "1" },
{ TCS_PARAM, TCS_NUMBER, P_dni_des, "dni_des", "Design-point DNI", "W/m2", "", "", "" },
{ TCS_PARAM, TCS_NUMBER, P_land_area, "land_area", "CALCULATED land area", "acre", "", "", "" },
{ TCS_INPUT, TCS_NUMBER, I_v_wind, "vwind", "Wind velocity", "m/s", "", "", "" },
{ TCS_INPUT, TCS_NUMBER, I_field_control, "field_control", "Field defocus control", "", "", "", "" },
{ TCS_INPUT, TCS_NUMBER, I_solaz, "solaz", "Solar azimuth angle: 0 due north - clockwise to +360", "deg", "", "", "" },
{ TCS_INPUT, TCS_NUMBER, I_solzen, "solzen", "Solar zenith angle", "deg", "", "", "" },
{ TCS_OUTPUT, TCS_NUMBER, O_pparasi, "pparasi", "Parasitic tracking/startup power", "MWe", "", "", "" },
{ TCS_OUTPUT, TCS_NUMBER, O_eta_field, "eta_field", "Total field efficiency", "", "", "", "" },
{ TCS_OUTPUT, TCS_MATRIX, O_flux_map, "flux_map", "Receiver flux map", "", "n_flux_x cols x n_flux_y rows", "", "" },
//N_MAX
{TCS_INVALID, TCS_INVALID, N_MAX, 0, 0, 0, 0, 0, 0 }
};
#ifdef _MSC_VER
#define mysnprintf _snprintf
#else
#define mysnprintf snprintf
#endif
#define pi 3.141592654
#define az_scale 6.283125908
#define zen_scale 1.570781477
#define eff_scale 0.7
class sam_mw_pt_heliostatfield : public tcstypeinterface
{
private:
// Class Instances
GaussMarkov *field_efficiency_table;
// Flux table
sp_flux_table fluxtab;
//Parameters
//string weather_file;
//int run_type;
//double helio_width;
//double helio_height;
//double helio_optical_error;
//double helio_active_fraction;
//double dens_mirror;
//double helio_reflectance;
//double rec_absorptance;
//double rec_height;
//double rec_aspect;
//double rec_hl_perm2;
//double q_design;
//double h_tower;
//int land_bound_type;
//double land_max;
//double land_min;
//double* land_bound_table;
//double* land_bound_list;
double p_start;
double p_track;
double hel_stow_deploy;
double v_wind_max;
//double interp_nug;
//double interp_beta;
//double* helio_positions;
//double* helio_aim_points;
int N_hel;
//int pos_dim;
//double* eta_map;
int n_flux_x;
int n_flux_y;
//double* flux_positions;
MatDoub m_flux_positions;
//double* flux_maps;
//double* flux_map;
//double c_atm_0, c_atm_1, c_atm_2, c_atm_3;
//int n_facet_x, n_facet_y;
//int cant_type, focus_type;
//int n_flux_days, delta_flux_hrs;
//double dni_des;
//Stored Variables
double eta_prev;
double v_wind_prev;
public:
struct RUN_TYPE { enum A {AUTO, USER_FIELD, USER_DATA}; };
sam_mw_pt_heliostatfield( tcscontext *cst, tcstypeinfo *ti)
: tcstypeinterface( cst, ti)
{
//run_type =0;
//helio_width =std::numeric_limits<double>::quiet_NaN();
//helio_height =std::numeric_limits<double>::quiet_NaN();
//helio_optical_error =std::numeric_limits<double>::quiet_NaN();
//helio_active_fraction =std::numeric_limits<double>::quiet_NaN();
//dens_mirror = std::numeric_limits<double>::quiet_NaN();
//helio_reflectance =std::numeric_limits<double>::quiet_NaN();
//rec_absorptance =std::numeric_limits<double>::quiet_NaN();
//rec_height =std::numeric_limits<double>::quiet_NaN();
//rec_aspect =std::numeric_limits<double>::quiet_NaN();
//rec_hl_perm2 =std::numeric_limits<double>::quiet_NaN();
//q_design =std::numeric_limits<double>::quiet_NaN();
//h_tower =std::numeric_limits<double>::quiet_NaN();
//land_bound_type =0;
//land_max =std::numeric_limits<double>::quiet_NaN();
//land_min =std::numeric_limits<double>::quiet_NaN();
//land_bound_table = NULL;
//land_bound_list = NULL;
p_start =std::numeric_limits<double>::quiet_NaN();
p_track =std::numeric_limits<double>::quiet_NaN();
hel_stow_deploy =std::numeric_limits<double>::quiet_NaN();
v_wind_max =std::numeric_limits<double>::quiet_NaN();
//interp_nug =std::numeric_limits<double>::quiet_NaN();
//interp_beta =std::numeric_limits<double>::quiet_NaN();
//helio_positions = NULL;
//helio_aim_points = NULL;
N_hel =0;
//pos_dim = 0;
//eta_map = NULL;
n_flux_x =0;
n_flux_y =0;
//flux_positions = NULL;
//flux_maps = NULL;
//flux_map = NULL;
//n_facet_x = 0;
//n_facet_y = 0;
//cant_type = 0;
//focus_type = 0;
//n_flux_days = 0;
//delta_flux_hrs = 0;
eta_prev = std::numeric_limits<double>::quiet_NaN();
v_wind_prev = std::numeric_limits<double>::quiet_NaN();
//c_atm_0 = std::numeric_limits<double>::quiet_NaN();
//c_atm_1 = std::numeric_limits<double>::quiet_NaN();
//c_atm_2 = std::numeric_limits<double>::quiet_NaN();
//c_atm_3 = std::numeric_limits<double>::quiet_NaN();
//dni_des = std::numeric_limits<double>::quiet_NaN();
field_efficiency_table = 0;
}
virtual ~sam_mw_pt_heliostatfield()
{
if(field_efficiency_table != 0)
delete field_efficiency_table;
}
virtual int init()
{
//Read in parameters
int nrows1, ncols1;
int nrows2;
int nrows4, ncols4;
int nrows5, ncols5;
int nfluxpos, nfposdim;
int nfluxmap, nfluxcol;
// Declare and initialize variables that are only used in initial call
string weather_file;
double helio_width = std::numeric_limits<double>::quiet_NaN();
double helio_height = std::numeric_limits<double>::quiet_NaN();
double helio_optical_error = std::numeric_limits<double>::quiet_NaN();
double helio_active_fraction = std::numeric_limits<double>::quiet_NaN();
double dens_mirror = std::numeric_limits<double>::quiet_NaN();
double helio_reflectance = std::numeric_limits<double>::quiet_NaN();
double rec_absorptance = std::numeric_limits<double>::quiet_NaN();
double rec_height = std::numeric_limits<double>::quiet_NaN();
double rec_aspect = std::numeric_limits<double>::quiet_NaN();
double rec_hl_perm2 = std::numeric_limits<double>::quiet_NaN();
double q_design = std::numeric_limits<double>::quiet_NaN();
double h_tower = std::numeric_limits<double>::quiet_NaN();
int land_bound_type = 0;
double land_max = std::numeric_limits<double>::quiet_NaN();
double land_min = std::numeric_limits<double>::quiet_NaN();
double *land_bound_table = NULL;
double *land_bound_list = NULL;
double interp_nug = std::numeric_limits<double>::quiet_NaN();
double interp_beta = std::numeric_limits<double>::quiet_NaN();
double c_atm_0 = std::numeric_limits<double>::quiet_NaN();
double c_atm_1 = std::numeric_limits<double>::quiet_NaN();
double c_atm_2 = std::numeric_limits<double>::quiet_NaN();
double c_atm_3 = std::numeric_limits<double>::quiet_NaN();
int n_facet_x = 0;
int n_facet_y = 0;
int cant_type = 0;
int focus_type = 0;
int n_flux_days = 0;
int delta_flux_hrs = 0;
double dni_des = std::numeric_limits<double>::quiet_NaN();
double *helio_positions = NULL;
double *helio_aim_points = NULL;
double *eta_map = NULL;
double *flux_positions = NULL;
double *flux_maps = NULL;
int pos_dim = 0;
double *flux_map = NULL;
int run_type = (int)value(P_run_type);
//Read in only those parameters that are relevant to the run scheme
switch (run_type)
{
case sam_mw_pt_heliostatfield::RUN_TYPE::AUTO:
case sam_mw_pt_heliostatfield::RUN_TYPE::USER_FIELD:
helio_width = value(P_helio_width);
helio_height = value(P_helio_height);
helio_optical_error = value(P_helio_optical_error);
helio_active_fraction = value(P_helio_active_fraction);
dens_mirror = value(P_dens_mirror);
helio_reflectance = value(P_helio_reflectance);
rec_absorptance = value(P_rec_absorptance);
rec_height = value(P_rec_height);
rec_aspect = value(P_rec_aspect);
rec_hl_perm2 = value(P_rec_hl_perm2);
q_design = value(P_q_design);
h_tower = value(P_h_tower);
weather_file = value_str(P_weather_file);
land_bound_type = (int)value(P_land_bound_type);
land_max = value(P_land_max);
land_min = value(P_land_min);
land_bound_table = value(P_land_bound_table, &nrows1, &ncols1);
land_bound_list = value(P_land_bound_list, &nrows2);
p_start = value(P_p_start);
p_track = value(P_p_track);
hel_stow_deploy = value(P_hel_stow_deploy)*pi/180.;
v_wind_max = value(P_v_wind_max);
interp_nug = value(P_interp_nug);
interp_beta = value(P_interp_beta);
n_flux_x = (int)value(P_n_flux_x);
n_flux_y = (int)value(P_n_flux_y);
c_atm_0 = value(P_c_atm_0);
c_atm_1 = value(P_c_atm_1);
c_atm_2 = value(P_c_atm_2);
c_atm_3 = value(P_c_atm_3);
n_facet_x = (int)value(P_n_facet_x);
n_facet_y = (int)value(P_n_facet_y);
cant_type = (int)value(P_cant_type);
focus_type = (int)value(P_focus_type);
n_flux_days = (int)value(P_n_flux_days);
delta_flux_hrs = (int)value(P_delta_flux_hrs);
dni_des = value(P_dni_des);
pos_dim = 2; //initiaize with 2 dimensions (x,y) on helio positions
if( run_type != sam_mw_pt_heliostatfield::RUN_TYPE::USER_FIELD ) break;
helio_positions = value(P_helio_positions, &N_hel, &pos_dim);
helio_aim_points = value(P_helio_aim_points, &nrows4, &ncols4);
break;
case sam_mw_pt_heliostatfield::RUN_TYPE::USER_DATA:
h_tower = value(P_h_tower);
land_bound_type = (int)value(P_land_bound_type);
land_max = value(P_land_max);
land_min = value(P_land_min);
land_bound_table = value(P_land_bound_table, &nrows1, &ncols1);
land_bound_list = value(P_land_bound_list, &nrows2);
p_start = value(P_p_start);
p_track = value(P_p_track);
hel_stow_deploy = value(P_hel_stow_deploy)*pi/180.;
v_wind_max = value(P_v_wind_max);
interp_nug = value(P_interp_nug);
interp_beta = value(P_interp_beta);
helio_positions = value(P_helio_positions, &N_hel, &pos_dim);
helio_aim_points = value(P_helio_aim_points, &nrows4, &ncols4);
//N_hel = (int)value(P_N_hel);
eta_map = value(P_eta_map, &nrows5, &ncols5);
n_flux_x = (int)value(P_n_flux_x);
n_flux_y = (int)value(P_n_flux_y);
/*int nfluxpos, nfposdim;
int nfluxmap, nfluxcol;*/
flux_positions = value(P_flux_positions, &nfluxpos, &nfposdim);
flux_maps = value(P_flux_maps, &nfluxmap, &nfluxcol);
c_atm_0 = value(P_c_atm_0);
c_atm_1 = value(P_c_atm_1);
c_atm_2 = value(P_c_atm_2);
c_atm_3 = value(P_c_atm_3);
n_facet_x = (int)value(P_n_facet_x);
n_facet_y = (int)value(P_n_facet_y);
cant_type = (int)value(P_cant_type);
focus_type = (int)value(P_focus_type);
n_flux_days = (int)value(P_n_flux_days);
delta_flux_hrs = (int)value(P_delta_flux_hrs);
dni_des = value(P_dni_des);
//check that flux maps match dimensions
if( nfluxmap % nfluxpos != 0 ){
message(TCS_ERROR, "The number of flux maps provided does not match the number of flux map sun positions provided. Please "
"ensure that the dimensionality of each flux map is consistent and that one sun position is provided for "
"each flux map. (Sun pos. = %d, mismatch lines = %d)", nfluxpos, nfluxmap % nfluxpos);
return -1;
}
//copy the flux positions over to the local member
m_flux_positions.resize( nfluxpos, VectDoub(nfposdim) );
for(int i=0; i<nfluxpos; i++)
for(int j=0; j<nfposdim; j++)
m_flux_positions.at(i).at(j) = flux_positions[i*2 + j];
break;
default:
break;
}
MatDoub sunpos;
vector<double> effs;
//do initial runs of SolarPILOT and/or set up tables
switch (run_type)
{
case sam_mw_pt_heliostatfield::RUN_TYPE::AUTO:
case sam_mw_pt_heliostatfield::RUN_TYPE::USER_FIELD:
{
AutoPilot_S sapi;
sp_optimize opt;
sp_ambient amb;
sp_cost cost;
sp_heliostats helios;
sp_receivers recs;
sp_layout layout;
var_set V;
ioutil::parseDefinitionArray(V);
// define stuff and load default values
opt.LoadDefaults(V);
amb.LoadDefaults(V);
cost.LoadDefaults(V);
helios.resize(1);
helios.front().LoadDefaults(V);
recs.resize(1);
recs.front().LoadDefaults(V);
layout.LoadDefaults(V);
helios.front().width = helio_width;
helios.front().height = helio_height;
helios.front().optical_error = helio_optical_error;
helios.front().active_fraction = helio_active_fraction * dens_mirror; //availability * mirror area fraction
helios.front().reflectance = helio_reflectance;
int cmap[5];
cmap[0] = Heliostat::CANT_METHOD::NONE;
cmap[1] = Heliostat::CANT_METHOD::AT_SLANT;
cmap[2] = cmap[3] = cmap[4] = Heliostat::CANT_METHOD::OFF_AXIS_DAYHOUR;
helios.front().cant_type = cmap[ cant_type ];
switch (cant_type)
{
case sp_heliostat::CANT_TYPE::NONE:
case sp_heliostat::CANT_TYPE::ON_AXIS:
//do nothing
break;
case sp_heliostat::CANT_TYPE::EQUINOX:
helios.front().cant_settings.point_day = 81; //spring equinox
helios.front().cant_settings.point_hour = 12.;
break;
case sp_heliostat::CANT_TYPE::SOLSTICE_SUMMER:
helios.front().cant_settings.point_day = 172; //Summer solstice
helios.front().cant_settings.point_hour = 12.;
break;
case sp_heliostat::CANT_TYPE::SOLSTICE_WINTER:
helios.front().cant_settings.point_day = 355; //Winter solstice
helios.front().cant_settings.point_hour = 12.;
break;
default:
{
stringstream msg;
msg << "Invalid Cant Type specified in SSC Heliostat Field Module. Method must be one of: \n" <<
"NONE(0), ON_AXIS(1), EQUINOX(2), SOLSTICE_SUMMER(3), SOLSTICE_WINTER(4).\n" <<
"Method specified is: " << cant_type << ".";
throw spexception(msg.str());
}
break;
}
int fmap[2];
fmap[0] = sp_heliostat::FOCUS_TYPE::FLAT;
fmap[1] = sp_heliostat::FOCUS_TYPE::AT_SLANT;
helios.front().focus_type = fmap[ focus_type ];
recs.front().absorptance = rec_absorptance;
recs.front().height = rec_height;
recs.front().aspect = rec_aspect;
recs.front().q_hl_perm2 = rec_hl_perm2;
layout.q_design = q_design;
layout.dni_design = dni_des;
layout.land_max = land_max;
layout.land_min = land_min;
layout.h_tower = h_tower;
//set up the weather data for simulation
const char *wffile = weather_file.c_str();
if ( !wffile ) message(TCS_WARNING, "solarpilot: no weather file specified" );
weatherfile wFile( wffile );
if ( !wFile.ok() || wFile.type() == weatherfile::INVALID ) message( TCS_WARNING, "solarpilot: could not open weather file or invalid weather file format");
weather_header hdr;
wFile.header( &hdr );
weather_record wf;
amb.site_latitude = hdr.lat;
amb.site_longitude = hdr.lon;
amb.site_time_zone = hdr.tz;
amb.atten_model = sp_ambient::ATTEN_MODEL::USER_DEFINED;
amb.user_atten_coefs.clear();
amb.user_atten_coefs.push_back(c_atm_0);
amb.user_atten_coefs.push_back(c_atm_1);
amb.user_atten_coefs.push_back(c_atm_2);
amb.user_atten_coefs.push_back(c_atm_3);
if(run_type == sam_mw_pt_heliostatfield::RUN_TYPE::AUTO)
{
/*
Generate the heliostat field layout using the settings provided by the user
*/
vector<string> wfdata;
wfdata.reserve( 8760 );
char buf[1024];
for( int i=0;i<8760;i++ )
{
if( !wFile.read( &wf ) ){
string msg = "solarpilot: could not read data line " + util::to_string(i+1) + " of 8760 in weather file";
message(TCS_WARNING, msg.c_str());
}
mysnprintf(buf, 1023, "%d,%d,%d,%.2lf,%.1lf,%.1lf,%.1lf",
wf.day, wf.hour, wf.month, wf.dn, wf.tdry, wf.pres/1000., wf.wspd);
wfdata.push_back( std::string(buf) );
}
sapi.SetDetailCallback( solarpilot_callback, (void*)this);
sapi.SetSummaryCallbackStatus(false);
sapi.GenerateDesignPointSimulations( amb, V, wfdata );
sapi.Setup(amb, cost, layout, helios, recs);
sapi.CreateLayout();
//Copy the heliostat field positions into the 'helio_positions' data structure
N_hel = (int)layout.heliostat_positions.size();
string msg = "Auto-generated field: Number of heliostats " + util::to_string(N_hel);
message(TCS_NOTICE, msg.c_str());
helio_positions = allocate(P_helio_positions, N_hel, pos_dim);
for( int i=0; i<N_hel; i++){
TCS_MATRIX_INDEX( var(P_helio_positions), i, 0 ) = layout.heliostat_positions.at(i).location.x;
TCS_MATRIX_INDEX( var(P_helio_positions), i, 1 ) = layout.heliostat_positions.at(i).location.y;
if(pos_dim==3)
TCS_MATRIX_INDEX( var(P_helio_positions), i, 2) = layout.heliostat_positions.at(i).location.z;
}
//update the callbacks
sapi.SetDetailCallbackStatus(false);
}
else{
/*
Load in the heliostat field positions that are provided by the user.
*/
layout.heliostat_positions.clear();
layout.heliostat_positions.resize(N_hel);
for( int i=0; i<N_hel; i++){
layout.heliostat_positions.at(i).location.x = TCS_MATRIX_INDEX( var(P_helio_positions), i, 0 );
layout.heliostat_positions.at(i).location.y = TCS_MATRIX_INDEX( var(P_helio_positions), i, 1 );
if(pos_dim==3)
layout.heliostat_positions.at(i).location.z = TCS_MATRIX_INDEX( var(P_helio_positions), i, 2);
}
sapi.Setup(amb, cost, layout, helios, recs);
}
//land area update
value(P_land_area, layout.land_area);
//number of heliostats
value(P_N_hel, (double)N_hel);
sapi.SetSummaryCallbackStatus(true);
sapi.SetSummaryCallback( solarpilot_callback, (void*)this);
//set up flux map resolution
fluxtab.is_user_spacing = true;
fluxtab.n_flux_days = n_flux_days;
fluxtab.delta_flux_hrs = delta_flux_hrs;
//run the flux maps
if(! sapi.CalculateFluxMaps(fluxtab, n_flux_x, n_flux_y, true) ){
message(TCS_ERROR, "Simulation cancelled during fluxmap preparation");
return -1;
}
//collect efficiencies
sunpos.clear();
effs.clear();
int npos = (int)fluxtab.azimuths.size();
sunpos.reserve(npos);
effs.reserve(npos);
eta_map = allocate( P_eta_map, npos, 3, 0.);
m_flux_positions.resize(npos, VectDoub(2) );
for(int i=0; i<npos; i++){
sunpos.push_back( vector<double>(2, 0.) );
sunpos.back().at(0) = fluxtab.azimuths.at(i) / az_scale;
sunpos.back().at(1) = fluxtab.zeniths.at(i) / zen_scale;
effs.push_back( fluxtab.efficiency.at(i) / eff_scale );
//fill the parameter matrix to return this data to calling program
//also fill the flux sun positions matrix
eta_map[i*3 ] = m_flux_positions.at(i).at(0) = fluxtab.azimuths.at(i)*180./pi;
eta_map[i*3 + 1] = m_flux_positions.at(i).at(1) = fluxtab.zeniths.at(i)*180./pi;
eta_map[i*3 + 2] = fluxtab.efficiency.at(i);
}
//collect flux's
flux_maps = allocate( P_flux_maps, n_flux_y * npos, n_flux_x );
block_t<double> *f = &fluxtab.flux_surfaces.front().flux_data;
int nfl = f->nlayers();
for(int i=0; i<nfl; i++){
for(int j=0; j<n_flux_y; j++){
for(int k=0; k<n_flux_x; k++){
TCS_MATRIX_INDEX( var(P_flux_maps), i*n_flux_y + j, k) = f->at(j, k, i);
}
}
}
break;
}
case sam_mw_pt_heliostatfield::RUN_TYPE::USER_DATA:
{
int nrows, ncols;
double *p_map = value( P_eta_map, &nrows, &ncols);
if(ncols != 3){
message(TCS_ERROR, "The heliostat field efficiency file is not formatted correctly. Type expects 3 columns"
" (zenith angle, azimuth angle, efficiency value) and instead has %d cols.", ncols);
return -1;
}
//read the data from the array into the local storage arrays
sunpos.resize(nrows, VectDoub(2));
effs.resize(nrows);
for(int i=0; i<nrows; i++){
sunpos.at(i).at(0) = TCS_MATRIX_INDEX( var( P_eta_map ), i, 0 ) / az_scale * pi/180.;
sunpos.at(i).at(1) = TCS_MATRIX_INDEX( var( P_eta_map ), i, 1 ) / zen_scale * pi/180.;
effs.at(i) = TCS_MATRIX_INDEX( var( P_eta_map ), i, 2 ) / eff_scale;
}
break;
}
default:
break;
}
//size the output
flux_map = allocate( O_flux_map, n_flux_y, n_flux_x );
//report back the flux positions used
int nflux = (int)m_flux_positions.size();
flux_positions = allocate(P_flux_positions, nflux, 2);
for(int i=0; i<nflux; i++){
flux_positions[i*2] = m_flux_positions.at(i).at(0);
flux_positions[i*2 + 1] = m_flux_positions.at(i).at(1);
}
/*
------------------------------------------------------------------------------
Create the regression fit on the efficiency map
------------------------------------------------------------------------------
*/
//collect nug and beta
interp_beta = value(P_interp_beta);
interp_nug = value(P_interp_nug);
//Create the field efficiency table
Powvargram vgram(sunpos, effs, interp_beta, interp_nug);
field_efficiency_table = new GaussMarkov(sunpos, effs, vgram);
//test how well the fit matches the data
double err_fit = 0.;
int npoints = (int)sunpos.size();
for(int i=0; i<npoints; i++){
double zref = effs.at(i);
double zfit = field_efficiency_table->interp( sunpos.at(i) );
double dz = zref - zfit;
err_fit += dz * dz;
}
err_fit = sqrt(err_fit);
if( err_fit > 0.01 )
message(TCS_WARNING, "The heliostat field interpolation function fit is poor! (err_fit=%f RMS)", err_fit);
// Initialize stored variables
eta_prev = 0.0;
v_wind_prev = 0.0;
return 0;
}
virtual int call( double time, double step, int ncall )
{
// GET AND CHECK INPUT VALUES
double v_wind = value( I_v_wind ); // [m/s] wind speed
double field_control = value( I_field_control ); // Control Parameter ( range from 0 to 1; 0=off, 1=all on)
if( field_control > 1.0 )
field_control = 1.0;
if( field_control < 0.0 )
field_control = 0.0;
double solzen = value( I_solzen )*pi/180.; // solar zenith angle
if( solzen >= pi/2. )
field_control = 0.0; // No tracking before sunrise of after sunset
double solaz = value( I_solaz )*pi/180.;
//clear out the existing flux map
for(int j=0; j<n_flux_y; j++)
for(int i=0; i<n_flux_x; i++)
TCS_MATRIX_INDEX( var(O_flux_map), j, i) = 0.;
// Parasitics for startup or shutdown
double pparasi = 0.0;
// If starting up or shutting down, calculate parasitics
if( (field_control > 1.e-4 && eta_prev < 1.e-4) || // Startup by setting of control paramter (Field_control 0-> 1)
(field_control < 1.e-4 && eta_prev >= 1.e-4) || // OR Shutdown by setting of control paramter (Field_control 1->0 )
(field_control > 1.e-4 && v_wind >= v_wind_max ) || // OR Shutdown by high wind speed
(eta_prev > 1.e-4 && v_wind_prev >= v_wind_max && v_wind < v_wind_max) ) // OR Startup after high wind speed
pparasi = N_hel * p_start / (step/3600.0); // [kWe-hr]/[hr] = kWe
// Parasitics for tracking
if( v_wind < v_wind_max && v_wind_prev < v_wind_max )
pparasi += N_hel * p_track * field_control; // [kWe]
double eta_field = 0.;
if( solzen > (pi/2 - .001 - hel_stow_deploy) || v_wind > v_wind_max || time < 3601){
eta_field = 1.e-6;
}
else{
// Use current solar position to interpolate field efficiency table and find solar field efficiency
vector<double> sunpos;
sunpos.push_back(solaz/az_scale);
sunpos.push_back(solzen/zen_scale);
eta_field = field_efficiency_table->interp( sunpos ) * eff_scale;
eta_field = min( max ( eta_field, 0.0 ), 1.0 ) * field_control; // Ensure physical behavior
//Set the active flux map
VectDoub pos_now(sunpos);
/*VectDoub pos_now(2);
pos_now.at(0) = solaz/az_scale;
pos_now.at(1) = solzen/zen_scale;*/
//find the nearest neighbors to the current point
vector<double> distances;
vector<int> indices;
for(int i=0; i<(int)m_flux_positions.size(); i++){
distances.push_back( rdist( & pos_now, &m_flux_positions.at(i) ) );
indices.push_back( i );
}
quicksort<double,int>( distances, indices );
//calculate weights for the nearest 6 points
double avepoints = 0.;
const int npt = 6;
for(int i=0; i<npt; i++)
avepoints += distances.at(i);
avepoints *= 1./(double)npt;
VectDoub weights(npt);
double normalizer = 0.;
for(int i=0; i<npt; i++){
double w = exp( - pow(distances.at(i)/avepoints, 2) );
weights.at(i) = w;
normalizer += w;
}
for(int i=0; i<npt; i++)
weights.at(i) *= 1./normalizer;
//set the values
for(int k=0; k<npt; k++){
int imap = indices.at(k);
for(int j=0; j<n_flux_y; j++){
for(int i=0; i<n_flux_x; i++){
TCS_MATRIX_INDEX( var(O_flux_map), j, i) +=
TCS_MATRIX_INDEX( var(P_flux_maps), imap*n_flux_y + j, i ) * weights.at(k);
}
}
}
}
// Set output parameters
value( O_pparasi, pparasi/1.E3 ); // [MW], convert from kWe: Parasitic power for tracking
value( O_eta_field, eta_field ); // [-], field efficiency
return 0;
}
virtual int converged( double time )
{
eta_prev = value( O_eta_field );
v_wind_prev = value( I_v_wind );