摘要
串联变压器是统一潮流控制器(UPFC)系统的重要组成部分。其原边绕组直接串入电力系统,变压器设备特性和运行方式同常规电力变压器有很大不同,需要提供专用的保护方案。文中从串联变压器的特性和运行方式出发,提出了串联变压器保护需要考虑的特殊问题。针对其特殊性提出了完整的串联变压器保护配置方案,并给出了适用于串联变压器的专用保护判据。最后使用实际工程参数建立实时数字仿真(RTDS)模型。仿真结果表明,文中理论分析正确,所提出的保护方案和判据可靠有效。
The series transformer is a very important part of the unified power flow controller（UPFC）.The primary windings of the series transformer are connected in series with the power system.The characteristics and operation mode are different from those of the common transformer,and a special protection configuration is needed.In view of the particularity of the series transformer,this paper proposes a series of problems for its protection.And an integral configuration is presented along with appropriative criteria.Then,a real time digital simulator（RTDS）is performed of actual parameters to prove the validity of theoretical analysis and the effectiveness of the protection criteria.
出处
《电力系统自动化》
EI
CSCD
北大核心
2017年第17期72-77,112,共7页
Automation of Electric Power Systems
关键词
统一潮流控制器
串联变压器
变压器磁饱和
差动保护
向量差过电压保护
united power flow controller（UPFC）
series transformer
saturation of transformer
differential protection
overvoltage protection with vector difference
