Line data Source code
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47 :
48 : #ifndef Photovoltaics_hh_INCLUDED
49 : #define Photovoltaics_hh_INCLUDED
50 :
51 : // C++ Headers
52 : #include <functional>
53 :
54 : // ObjexxFCL Headers
55 : #include <ObjexxFCL/Array1D.hh>
56 :
57 : // EnergyPlus Headers
58 : #include <EnergyPlus/Data/BaseData.hh>
59 : #include <EnergyPlus/ElectricPowerServiceManager.hh>
60 : #include <EnergyPlus/EnergyPlus.hh>
61 :
62 : namespace EnergyPlus {
63 :
64 : // Forward declarations
65 : struct EnergyPlusData;
66 :
67 : namespace Photovoltaics {
68 :
69 : // Data
70 : // MODULE PARAMETER DEFINITIONS:
71 : // na
72 :
73 : // DERIVED TYPE DEFINITIONS:
74 : // see DataPhotovoltaics.cc
75 :
76 : void SimPVGenerator(EnergyPlusData &state,
77 : GeneratorType const GeneratorType, // type of Generator
78 : std::string const &GeneratorName, // user specified name of Generator
79 : int &GeneratorIndex,
80 : bool const RunFlag, // is PV ON or OFF as determined by schedules in ElecLoadCenter
81 : Real64 const PVLoad // electrical load on the PV (not really used... PV models assume "full on"
82 : );
83 :
84 : void GetPVGeneratorResults(EnergyPlusData &state,
85 : GeneratorType const GeneratorType, // type of Generator
86 : int const GeneratorIndex,
87 : Real64 &GeneratorPower, // electrical power
88 : Real64 &GeneratorEnergy, // electrical energy
89 : Real64 &ThermalPower,
90 : Real64 &ThermalEnergy);
91 :
92 : // *************
93 :
94 : void GetPVInput(EnergyPlusData &state);
95 :
96 : int GetPVZone(EnergyPlusData &state, int const SurfNum);
97 :
98 : // **************************************
99 :
100 : void CalcSimplePV(EnergyPlusData &state, int const thisPV);
101 :
102 : void ReportPV(EnergyPlusData &state, int const PVnum);
103 :
104 : // *************
105 :
106 : void CalcSandiaPV(EnergyPlusData &state,
107 : int const PVnum, // ptr to current PV system
108 : bool const RunFlag // controls if generator is scheduled *ON*
109 : );
110 :
111 : // ********************
112 : // begin routines for Equivalent one-diode model by Bradley/Ulleberg
113 :
114 : void InitTRNSYSPV(EnergyPlusData &state, int const PVnum); // the number of the GENERATOR:PHOTOVOLTAICS (passed in)
115 :
116 : // *************
117 :
118 : void CalcTRNSYSPV(EnergyPlusData &state,
119 : int const PVnum, // BTG added intent
120 : bool const RunFlag // BTG added intent !flag tells whether the PV is ON or OFF
121 : );
122 :
123 : void POWER(EnergyPlusData &state,
124 : Real64 const IO, // passed in from CalcPV
125 : Real64 const IL, // passed in from CalcPV
126 : Real64 const RSER, // passed in from CalcPV
127 : Real64 const AA, // passed in from CalcPV
128 : Real64 const EPS, // passed in from CalcPV
129 : Real64 &II, // current [A]
130 : Real64 &VV, // voltage [V]
131 : Real64 &PP // power [W]
132 : );
133 :
134 : void NEWTON(EnergyPlusData &state,
135 : Real64 &XX,
136 : std::function<Real64(EnergyPlusData &state, Real64 const, Real64 const, Real64 const, Real64 const, Real64 const, Real64 const)> FXX,
137 : std::function<Real64(EnergyPlusData &state, Real64 const, Real64 const, Real64 const, Real64 const, Real64 const)> DER,
138 : Real64 const &II, // Autodesk Aliased to XX in some calls
139 : Real64 const &VV, // Autodesk Aliased to XX in some calls
140 : Real64 const IO,
141 : Real64 const IL,
142 : Real64 const RSER,
143 : Real64 const AA,
144 : Real64 const XS,
145 : Real64 const EPS);
146 :
147 : void SEARCH(EnergyPlusData &state,
148 : Real64 &A,
149 : Real64 &B,
150 : Real64 &P,
151 : int &K,
152 : Real64 &IO,
153 : Real64 &IL,
154 : Real64 &RSER,
155 : Real64 &AA,
156 : Real64 const EPS,
157 : int const KMAX);
158 :
159 : Real64 FUN(EnergyPlusData &state, Real64 const II, Real64 const VV, Real64 const IL, Real64 const IO, Real64 const RSER, Real64 const AA);
160 :
161 : Real64 FI(EnergyPlusData &state, Real64 const II, Real64 const VV, Real64 const IO, Real64 const RSER, Real64 const AA);
162 :
163 : Real64 FV(EnergyPlusData &state, Real64 const II, Real64 const VV, Real64 const IO, Real64 const RSER, Real64 const AA);
164 :
165 : // End routines for Equivalent One-Diode model as implemented by Bradley
166 : //************************************************************************
167 :
168 : // Begin supporting routines for Sandia PV model
169 : // -------------------------------------------------------------------------------
170 :
171 : Real64 SandiaModuleTemperature(Real64 const Ibc, // beam radiation on collector plane, W/m2
172 : Real64 const Idc, // Diffuse radiation on collector plane, W/m2
173 : Real64 const Ws, // wind speed, m/s
174 : Real64 const Ta, // ambient temperature, degC
175 : Real64 const fd, // fraction of Idc used (empirical constant)
176 : Real64 const a, // empirical constant
177 : Real64 const b // empirical constant
178 : );
179 :
180 : // -------------------------------------------------------------------------------
181 : // -------------------------------------------------------------------------------
182 :
183 : Real64 SandiaTcellFromTmodule(Real64 const Tm, // module temperature (deg C)
184 : Real64 const Ibc, // beam radiation on collector plane, W/m2
185 : Real64 const Idc, // Diffuse radiation on collector plane, W/m2
186 : Real64 const fd, // fraction of Idc used (empirical constant)
187 : Real64 const DT0 // (Tc-Tm) at E=1000 W/m2 (empirical constant known as delta T), deg C
188 : );
189 :
190 : // -------------------------------------------------------------------------------
191 :
192 : Real64 SandiaCellTemperature(Real64 const Ibc, // beam radiation on collector plane W/m2
193 : Real64 const Idc, // Diffuse radiation on collector plane W/m2
194 : Real64 const Ws, // wind speed, m/s
195 : Real64 const Ta, // ambient temperature, degC
196 : Real64 const fd, // fraction of Idc used (empirical constant)
197 : Real64 const a, // empirical constant
198 : Real64 const b, // empirical constant
199 : Real64 const DT0 // (Tc-Tm) at E=1000 W/m2 (empirical constant known as dTc), deg C
200 : );
201 :
202 : // -------------------------------------------------------------------------------
203 :
204 : Real64 SandiaEffectiveIrradiance(Real64 const Tc, // cell temperature (deg C)
205 : Real64 const Isc, // short-circuit current under operating conditions (A)
206 : Real64 const Isc0, // reference Isc at Tc=25 C, Ic=1000 W/m2 (A)
207 : Real64 const aIsc // Isc temperature coefficient (degC^-1)
208 : );
209 :
210 : // -------------------------------------------------------------------------------
211 :
212 : Real64 AbsoluteAirMass(Real64 const SolZen, // solar zenith angle (deg)
213 : Real64 const Altitude // site altitude (m)
214 : );
215 :
216 : // -------------------------------------------------------------------------------
217 :
218 : Real64 SandiaF1(Real64 const AMa, // absolute air mass
219 : Real64 const a0, // empirical constant, module-specific
220 : Real64 const a1, // empirical constant, module-specific
221 : Real64 const a2, // empirical constant, module-specific
222 : Real64 const a3, // empirical constant, module-specific
223 : Real64 const a4 // empirical constant, module-specific
224 : );
225 :
226 : // -------------------------------------------------------------------------------
227 :
228 : Real64 SandiaF2(Real64 const IncAng, // incidence angle (deg)
229 : Real64 const b0, // empirical module-specific constants
230 : Real64 const b1, // empirical module-specific constants
231 : Real64 const b2, // empirical module-specific constants
232 : Real64 const b3, // empirical module-specific constants
233 : Real64 const b4, // empirical module-specific constants
234 : Real64 const b5 // empirical module-specific constants
235 : );
236 :
237 : // -------------------------------------------------------------------------------
238 :
239 : Real64 SandiaImp(Real64 const Tc, // cell temperature (degC)
240 : Real64 const Ee, // effective irradiance (W/m2)
241 : Real64 const Imp0, // current at MPP at SRC (1000 W/m2, 25 C) (A)
242 : Real64 const aImp, // Imp temperature coefficient (degC^-1)
243 : Real64 const C0, // empirical module-specific constants
244 : Real64 const C1 // empirical module-specific constants
245 : );
246 :
247 : // -------------------------------------------------------------------------------
248 :
249 : Real64 SandiaIsc(Real64 const Tc, // cell temperature (deg C)
250 : Real64 const Isc0, // Isc at Tc=25 C, Ic=1000 W/m2 (A)
251 : Real64 const Ibc, // beam radiation on collector plane (W/m2)
252 : Real64 const Idc, // Diffuse radiation on collector plane (W/m2)
253 : Real64 const F1, // Sandia F1 function for air mass effects
254 : Real64 const F2, // Sandia F2 function of incidence angle
255 : Real64 const fd, // module-specific empirical constant
256 : Real64 const aIsc // Isc temperature coefficient (degC^-1)
257 : );
258 :
259 : // -------------------------------------------------------------------------------
260 :
261 : Real64 SandiaIx(Real64 const Tc, // cell temperature (deg C)
262 : Real64 const Ee, // effective irradiance
263 : Real64 const Ix0, // Ix at SRC (1000 W/m2, 25 C) (A)
264 : Real64 const aIsc, // Isc temp coefficient (/C)
265 : Real64 const aImp, // Imp temp coefficient (/C)
266 : Real64 const C4, // empirical module-specific constants
267 : Real64 const C5 // empirical module-specific constants
268 : );
269 :
270 : // -------------------------------------------------------------------------------
271 :
272 : Real64 SandiaIxx(Real64 const Tc, // cell temperature (deg C)
273 : Real64 const Ee, // effective irradiance (W/m2 ?)
274 : Real64 const Ixx0, // Ixx at SRC (1000 W/m2, 25 C) (A)
275 : Real64 const aImp, // Imp temp coefficient (/C)
276 : Real64 const C6, // empirical module-specific constants
277 : Real64 const C7 // empirical module-specific constants
278 : );
279 :
280 : // -------------------------------------------------------------------------------
281 :
282 : Real64 SandiaVmp(Real64 const Tc, // cell temperature (deg C)
283 : Real64 const Ee, // effective irradiance
284 : Real64 const Vmp0, // Vmp at SRC (1000 W/m2, 25 C) (V)
285 : Real64 const NcellSer, // # cells in series
286 : Real64 const DiodeFactor, // module-specIFic empirical constant
287 : Real64 const BVmp0, // Vmp temperature coefficient (V/C)
288 : Real64 const mBVmp, // change in BVmp with irradiance
289 : Real64 const C2, // empirical module-specific constants
290 : Real64 const C3 // empirical module-specific constants
291 : );
292 :
293 : // -------------------------------------------------------------------------------
294 :
295 : Real64 SandiaVoc(Real64 const Tc, // cell temperature (deg C)
296 : Real64 const Ee, // effective irradiance
297 : Real64 const Voc0, // Voc at SRC (1000 W/m2, 25 C) (V)
298 : Real64 const NcellSer, // # cells in series
299 : Real64 const DiodeFactor, // module-specIFic empirical constant
300 : Real64 const BVoc0, // Voc temperature coefficient (V/C)
301 : Real64 const mBVoc // change in BVoc with irradiance
302 : );
303 :
304 : void SetVentedModuleQdotSource(EnergyPlusData &state,
305 : int const VentModNum,
306 : Real64 const QSource // source term in Watts
307 : );
308 :
309 : void GetExtVentedCavityIndex(EnergyPlusData &state, int const SurfacePtr, int &VentCavIndex);
310 :
311 : void GetExtVentedCavityTsColl(EnergyPlusData &state, int const VentModNum, Real64 &TsColl);
312 :
313 : // -------------------------------------------------------------------------------
314 :
315 : // EnergyPlus V1.2 and beyond include models for photovoltaic calculations called
316 : // Generator:Photovoltaic:Simple and Generator:PV:Sandia implemented by the Center for
317 : // Buildings and Thermal Systems, National Renewable Energy Laboratory, 1617 Cole Blvd
318 : // MS 2722, Golden, CO, 80401
319 :
320 : // EnergyPlus v1.1.1 and beyond includes model for Photovoltaic calculations, now
321 : // referred to as the Generator:PV:Equivalent One-Diode model developed by Thermal Energy
322 : // System Specialists, 2916 Marketplace Drive, Suite 104, Madison, WI 53719;
323 : // Tel: (608) 274-2577
324 :
325 : } // namespace Photovoltaics
326 :
327 1542 : struct PhotovoltaicStateData : BaseGlobalStruct
328 : {
329 :
330 : Array1D_bool CheckEquipName;
331 : bool GetInputFlag = true; // one time get input flag
332 : bool MyOneTimeFlag = true;
333 : bool firstTime = true;
334 : Real64 PVTimeStep; // internal timestep (in seconds) for cell temperature mode 3
335 : Array1D_bool MyEnvrnFlag;
336 :
337 0 : void clear_state() override
338 : {
339 0 : CheckEquipName.clear();
340 0 : GetInputFlag = true;
341 0 : MyOneTimeFlag = true;
342 0 : firstTime = true;
343 0 : MyEnvrnFlag.clear();
344 0 : }
345 : };
346 :
347 : } // namespace EnergyPlus
348 :
349 : #endif
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