Fault Transient Analysis and Protection Performance Evaluation within a Large-scale PV Power Plant
1 State Grid Ningxia Electric Power Company, Ningxia, China
2 State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
3 State Grid AC Project Construction Co., Ltd, Beijing, China
In this paper, a short-circuit test within a large-scale PV power plant with a total capacity of 850MWp is discussed. The fault currents supplied by the PV generation units are presented and analysed. According to the fault behaviour, the existing protection coordination principles with the plant are considered and their performances are evaluated. Moreover, these protections are examined in simulation platform under different operating situations. A simple measure with communication system is proposed to deal with the foreseeable problem about the current protection scheme in the PV power plant.
© The Authors, published by EDP Sciences, 2016
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