Photovoltaic Plant (PhysicsPV)¶

Class: PhysicsPV | Module: energysim.models.renewables | Validation benchmarks | Units

Overview¶

Simple Solar Photovoltaic system model.

DC power is linear in plane-of-array irradiance, derated linearly with cell temperature (NOCT cell-temperature model with a wind-speed damping term); the inverter is a generic efficiency-vs-load curve with a hard AC clipping limit and an optional curtailment setpoint. It is not a single-diode, five-parameter or Sandia array/inverter model, and there is no spectral, angle-of-incidence, soiling or shading loss.

Validity: G_poa in 0-1300 W/m2, T_amb -20..50 C, v_wind 0..20 m/s; the output is a smooth surrogate for plant-level studies, not for bankable yield.

Parameters¶

Parameter	Type	Default	Unit	Description
`name`	`str`	`'SolarPV'`	-	-
`p_dc_stc_mw`	`float`	`1.0`	MW	DC array rated peak power at Standard Test Conditions (STC: 1000 W/m2, 25 C) in MW.
`inverter_p_ac_max_mw`	`float`	`0.9`	MW	AC inverter maximum rated capacity in MW.
`temp_coeff_p`	`float`	`-0.0038`	1/K	Power temperature coefficient in 1/K (default -0.38 %/C for crystalline silicon).
`noct_c`	`float`	`45.0`	degC	Nominal Operating Cell Temperature in C (at 800 W/m2, 20 C ambient, 1 m/s wind).
`inverter_curve`	`Optional[Curve1D]`	`None`	-	Inverter efficiency vs normalized DC power.
`step_size`	`float`	`1.0`	s	-

Inputs¶

Variable	Unit	Description
`G_poa`	W/m2	Plane-of-array global solar irradiance
`T_amb`	degC	Ambient surrounding air temperature
`v_wind`	m/s	-
`curtail_limit`	MW	-

Outputs¶

Variable	Unit	Description
`P_ac`	MW	Net active AC power injected into the collector substation
`P_dc`	MW	DC-side equivalent of the delivered AC power (equals the raw DC power only when the inverter is not clipping)
`T_cell`	degC	Operating PV cell junction temperature

Validity and notes¶

Validity: G_poa in 0-1300 W/m2, T_amb -20..50 C, v_wind 0..20 m/s; the output is a smooth surrogate for plant-level studies, not for bankable yield.

Usage example¶

from energysim import world
from energysim.models import PhysicsPV

sim = world(start_time=0, stop_time=3600, t_macro=900)
sim.add_model('physicspv', model=PhysicsPV(), outputs=['P_ac', 'P_dc', 'T_cell'], step_size=60)
res = sim.simulate()
print(res['physicspv'].tail(2))