Outdoor Photovoltaic Solar Energy Models

What dynamic models are used for solar PV plants?

WECC approved the use of two generic dynamic models for solar PV plants: (a) a model consisting of plant controller, electrical controls, and grid interface modules intended for large-scale solar PV plants; and (b) a simplified model intended for distribution-connected, aggregated solar PV plants.

What makes a good solar PV plant model?

A satisfactory solar PV plant model produces simulated output that matches measured data for an array of different disturbances and power output levels, not just a select data set used to train the model. A good practice is to reserve certain data sets and use them for model evaluation only, meaning they are not used to tune the model parameters.

Do solar PV power plants have dynamic electrical performance?

The models must provide a reasonably good representation of dynamic electrical performance of solar photovoltaic power plants at the point of interconnection with the ≥ 60 kV electric system, and not necessarily within the solar PV power plant itself.

What should be included in a solar PV plant model?

With the proper model parameters, this model should approximate solar PV plant load flow characteristics at the interconnection point, collector system real and reactive losses, and voltage profile at the terminals of the “average” inverter in the solar PV plant.

Which res models represent solar PV plants in Western Interconnection?

WECC Guide for Representation of Photovoltaic Systems in Large-Scale Load Flow Simulations; dated August 2010. The second-generation RES models represent most of the solar PV plants in the Western Interconnection. The guidelines above have been referred to extensively in producing the models for the solar PV plants.

How are distributed solar PV resources modeled?

Behind-the-meter distributed solar PV resources are modeled by the DER_A component of the composite load model. Use proper engineering analyses, including tests and tuning, to bring measured and simulated data into agreement. 3 PVD1 models were used before the approval of DER_A model.