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Description
The photovoltaic generation system (PVGS) is shown in the figure below. The PVGS features a PV array that is connected to an inverter via a boost DC-DC converter. The PV array model contains many types of modules predefined from the database of the California Energy Commission (CEC)
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The PV_Array panel is shown below. This panel contains all the parameters to tune the technology and desired output power from the PV. The panel was implemented from a MATLAB/Simulink example model available online
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PV Array Parameters
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Name | Description | Unit |
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Nser | Number of PV modules connected in series. | - |
Npar | Number of PV modules connected in parallel. | - |
Ncell | Number of cells per module. | - |
Vmp | Voltage at maximum power point for one module at nominal irradiance (1000 W/m2 ) and temperature (25 °C). | V |
Imp | Current at maximum power point for one module at nominal irradiance (1000 W/m2 ) and temperature (25 °C). | A |
Pmax | Maximum power | W |
Voc | Open circuit voltage for one module. | V |
Isc | Short circuit current for one module. | A |
Beta | Temperature coefficient at Voc | %/°C |
Alpha | Temperature coefficient at Isc | %/°C |
IL | Light generated current | A |
I0 | Diode saturation current | A |
Diode ideality factor | Ideality factor of the diode. | - |
Rsh | Shunt resistance | Ω |
Rs | Series resistance | Ω |
PV array Database Parameters
Below figure shows the Database tab of PV model. This tab lets you choose a PV from the database of the California Energy Commission (CEC). Once the selected module, the user must click Load parameters to load the model with the respective parameter values.
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Boost Converter Parameters
The boost converter control parameters contain the RLC parameters together with the duty-cycle control, this duty-cycle depends on the active power regulator.
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