高渗透率的光伏对低压配电网保护协调性的影响  

High Penetration of Photovoltaic Impact on Coordination of Low Voltage Distribution System Protection

作　　者：张泽云[1] 黄家栋[1] 段晓波[2] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003 [2]河北省电力研究院,河北石家庄050021

出　　处：《电力科学与工程》2010年第10期7-11,共5页Electric Power Science and Engineering

摘　　要：光伏对保护协调性的影响取决于光伏的容量和接入位置。尤其是在多个位置接入光伏时,会使故障电流的大小和方向改变。考虑光伏的各种接入组合方式及光伏自身的保护方法,详细分析了多个光伏接入对低压配电网保护设备协调性的影响。如熔断器-熔断器、熔断器-重合器和重合器-重合器的协调性。总结了每种情况可能出现的失调情况,并提出相应的对策及解决方法,为今后大容量或多个小容量、分布式光伏接入配电网,提供一定的参考价值。The photovoltaic effect on the protection coordination depends on its capacity and accessing location.Especially when photovoltaics access in multiple locations,they cause fault current magnitude and direction changed.Considering a variety of access combinations of photovoltaics and photovoltaic protection of their own,analyzing the effect on coordination of protection equipment that a number of solar access to the low voltage distribution network.Such as fuses-fuse,fuse-recloser and recloser-recloser coordination.Summarizing each case which the loss of coordination may occur,and providing appropriate measures and solutions.For the future large capacity Photovoltaic or more small capacity distributed Photovoltaic access distribution network,providing a reference value.

关 键 词：光伏 配电网保护 熔断器 重合器 协调性 

分 类 号：TM773[电气工程—电力系统及自动化]