Pvwattsv1Poa¶
Wrapper for SAM Simulation Core model: cmod_pvwattsv1_poa.cpp
Creating an Instance¶
There are three methods to create a new instance of a PySAM module. Using default
populates the newclass’ attributes with default values specific to a config
. Each technology-financialconfiguration corresponds to a SAM GUI configuration. Using new
creates an instance with empty attributes. The wrap
function allows compatibility with PySSC, for details, refer to PySSC.
Pvwattsv1Poa model description
Pvwattsv1Poa
-
PySAM.Pvwattsv1Poa.
default
(config) → Pvwattsv1Poa¶ Use financial config-specific default attributes
-
PySAM.Pvwattsv1Poa.
from_existing
(data, optional config) → Pvwattsv1Poa¶ Share underlying data with an existing PySAM class. If config provided, default attributes are loaded otherwise.
-
PySAM.Pvwattsv1Poa.
new
() → Pvwattsv1Poa¶
-
PySAM.Pvwattsv1Poa.
wrap
(ssc_data_t) → Pvwattsv1Poa¶ Use existing PySSC data
Warning
Do not call PySSC.data_free on the ssc_data_t provided to
wrap
Functions¶
-
class
PySAM.Pvwattsv1Poa.
Pvwattsv1Poa
¶ This class contains all the variable information for running a simulation. Variables are grouped together in the subclasses as properties. If property assignments are the wrong type, an error is thrown.
-
assign
(dict) → None¶ Assign attributes from nested dictionary, except for Outputs
nested_dict = { 'Weather': { var: val, ...}, ...}
-
execute
(int verbosity) → None¶ Execute simulation with verbosity level 0 (default) or 1
-
export
() → dict¶ Export attributes into nested dictionary
-
value
(name, optional value) → Union[None, float, dict, sequence, str]¶ Get or set by name a value in any of the variable groups.
-
Weather Group¶
-
class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.
Weather
¶ -
assign
() → None¶ Assign attributes from dictionary
Weather_vals = { var: val, ...}
-
export
() → dict¶ Export attributes into dictionary
-
beam
¶ Direct normal radiation [W/m2]
Required: True
Type: sequence
-
incidence
¶ Incidence angle to surface [deg]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
-
poa_beam
¶ Incident direct normal radiation [W/m2]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
-
poa_gnddiff
¶ Incident ground diffuse irradiance [W/m2]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
-
poa_skydiff
¶ Incident sky diffuse radiation [W/m2]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
-
tdry
¶ Dry bulb temperature [‘C]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
-
wspd
¶ Wind speed [m/s]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
-
PVWatts Group¶
-
class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.
PVWatts
¶ -
assign
() → None¶ Assign attributes from dictionary
PVWatts_vals = { var: val, ...}
-
export
() → dict¶ Export attributes into dictionary
-
derate
¶ System derate value [frac]
Constraints: MIN=0,MAX=1
Required: True
Type: float
-
gamma
¶ Max power temperature coefficient [%/’C]
Required: If not provided, assumed to be -0.5
Type: float
-
inoct
¶ Nominal operating cell temperature [‘C]
Constraints: POSITIVE
Required: If not provided, assumed to be 45.0
Type: float
-
inv_eff
¶ Inverter efficiency at rated power [frac]
Constraints: MIN=0,MAX=1
Required: If not provided, assumed to be 0.92
Type: float
-
step
¶ Time step of input data [sec]
Constraints: POSITIVE
Required: If not provided, assumed to be 3600
Type: float
-
system_size
¶ Nameplate capacity [kW]
Constraints: MIN=0.5,MAX=100000
Required: True
Type: float
-
t_ref
¶ Reference cell temperature [‘C]
Constraints: POSITIVE
Required: If not provided, assumed to be 25.0
Type: float
-
Outputs Group¶
-
class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.
Outputs
¶ -
assign
() → None¶ Assign attributes from dictionary
Outputs_vals = { var: val, ...}
-
export
() → dict¶ Export attributes into dictionary
-
ac
¶ AC system output [kWhac]
Type: sequence
-
dc
¶ DC array output [kWhdc]
Type: sequence
-
tcell
¶ Cell temperature [‘C]
Type: sequence
-