摘要
针对含有分布式电源农网各级线路后备保护时限累加过长增加农网继电保护装置越级跳闸的风险,分析分布式电源对农网继电保护的影响,建立含有分布式电源农网短路计算的数学模型,提出含有分布式电源农网自适应继电保护方案,并通过MATLAB仿真验证方案的有效性,提升含有分布式电源农网运行的可靠性。
Aiming at the risk of override tripping of the protection of the rural power grid protection system,the impact of the distributed power supply on the relay protection of the rural power grid was analyzed,and the short-circuit calculation of the distributed power supply network was established.The mathematical model proposed an adaptive relay protection scheme with a distributed power supply farm network.The effectiveness of the scheme was verified by MATLAB simulation to improve the reliability of the operation of the distributed power supply farm network.
作者
李志强
高国铭
陈德威
陶稷
陈堂贤
LI Zhiqiang;GAO Guoming;CHEN Dewei;TAO Ji;CHEN Tangxian(Jingzhou Power Supply Company,State Grid Hubei Electric Power Co.,Ltd.,Jingzhou 434000,China;Qianjiang Power Supply Company,State Grid Hubei Electric Power Co.,Ltd.,Qianjiang 433100,China;Shennongjia Power Supply Company,State Grid Hubei Electric Power Co.,Ltd.,Shennongjia 442400,China;School of Electricity and New Energy,Three Gorges University,Yichang 443002,China)
出处
《电工技术》
2019年第23期12-15,共4页
Electric Engineering
基金
湖北省电力公司项目（编号2019-507-26）
关键词
分布式电源
继电保护
农网
自适应保护
distributed power supply
relay protection
rural network
adaptive protection
