Influence Analysis on Power Relay Protection of PV Generation Connected to 500 kV Substation Station Power
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Abstract
Photovoltaic generation connected to 500 kV substation was studied in this paper. Firstly, the general wiring mode of 500 kV substation station power and the basic model of PV generation were introduced. According to the characteristics of 500 kV substation and the structure of the station, the layout of PV modules, power supply of PV generation and the scheme of PV connected to system are represented. Matlab simulation model of PV connected to 500 kV substation station power was established based on the actual parameters of 500 kV substation. Based on the Matlab simulation model, the short-circuit faults simulations were tested and calculated, the influences on station power protection of 500 kV substation were analyzed, and measures of station protection were also proposed.
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