电力系统保护与控制2017，Vol.45Issue(18)：137-142,6.DOI:10.7667/PSPC161477
含低电压穿越型光伏电源配电网自适应正序电流速断保护
An adaptive positive-sequence current instantaneous trip protection for distribution network with PV
摘要
Abstract
In the case of distribution network failure,the output current ofphotovoltaic power plants which have capability of low voltage ride-through (LVRT) is closely related to the PV capacity,fault type and fault location.It brings great difficulties to the current protection of distribution network.The characteristics and control strategies of low voltage ride-through of PV are analyzed.A fault analysis method of distribution network with PV is proposed.Based on the failure characteristics of distribution network with PV,the problem of adaptive current instantaneous trip protection in distribution network is analyzed.Because PV only output positive sequence current,an adaptive positive-sequence current instantaneous trip protection for distribution network with PV is put forward.A 10 kV model of distribution network is established by using PSCAD,verifying the correctness of the protection.关键词
光伏电源/低电压穿越/配电网/故障特性/自适应电流保护/整定Key words
photovoltaic/LVRT/distribution network/failure characteristics/adaptive current protection/setting引用本文复制引用
张润坤,王宝华..含低电压穿越型光伏电源配电网自适应正序电流速断保护[J].电力系统保护与控制,2017,45(18):137-142,6.
