Photovoltaic power generation system inertia evaluation method based on cloud edge data collaboration

Abstract

The invention relates to the technical field of solar power generation, in particular to a photovoltaic power generation system inertia evaluation method based on cloud edge data collaboration, which comprises the following steps: acquiring operation data of the edge end of each photovoltaic unit of a photovoltaic power generation system in a preset time period and meteorological monitoring data of corresponding time, and establishing a historical database at a cloud end; acquiring a current meteorological monitoring parameter in real time, searching a matched working condition in a cloud historical database, and determining a current optimal generation power reference value of each photovoltaic unit; the edge end of each photovoltaic unit calculates the current virtual inertia of the photovoltaic unit according to the determined optimal generation power reference value; and the cloud receives the virtual inertia calculated by the edge end of each photovoltaic unit, and evaluates the virtual inertia which can be provided by the whole photovoltaic power generation system at present. Through the method, the capability level of providing the virtual inertia of the whole photovoltaic power generation system can be continuously evaluated, and the stability and the safety of a novel power system can be improved.

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