电力系统自动化2013，Vol.37Issue(14)：19-24,6.DOI:10.7500/AEPS201212044
风电场汇流线路同步采样及差动保护
Synchronous Sampling and Differential Protections of Collector Lines in Wind Farms
陈福锋 1赵谦 2兰金波 1王玉婷2
作者信息
- 1. 国电南京自动化股份有限公司,江苏省南京市210003
- 2. 南京国电南自电网自动化有限公司,江苏省南京市211100
- 折叠
摘要
Abstract
The relay protection settings and problems of low voltage collector network of wind farm are discussed.A differential protection scheme of collector line in the wind farm covering wind turbine step-up transformer is proposed,with an optical Ethernet network consisting of cascade merging units based on the protocol IEC 61850-9-2.It is realized with synchronous sampling and communication of the generator outgoing line current and the collector line current on the same collector bus.This method is also applicable to the data synchronous acquisition of similar distribution network and microgrid.The equations of differential protection are derived.The effect of the transformer and cable capacitance current on the differential protection is analyzed,and corresponding solutions are presented.关键词
风力发电/风电场/汇流线路/差动保护Key words
wind power generation/ wind farm/ collector lines/ differential protection引用本文复制引用
陈福锋,赵谦,兰金波,王玉婷..风电场汇流线路同步采样及差动保护[J].电力系统自动化,2013,37(14):19-24,6.
