摘要
丰宁可变速抽蓄机组的投运使得其转子绕组保护方案的配置备受关注。运用多回路分析法,对湘潭电机厂制造的12 kW交流励磁样机所有实际可能发生的转子绕组内部故障进行了仿真,在此基础上对基于定子分支谐波环流的转子绕组新型主保护方案的性能进行了分析,并进一步明确了新型转子绕组主保护方案不能动作故障类型及相应的改进措施,为后续国产化示范项目中可变速抽蓄机组的稳定运行奠定基础。
The operation of Fengning variable speed pumped storage units has made the main protection scheme of the rotor winding a hot issue.The multi-loop analysis method is used to simulate all possible internal faults in the rotor winding of the 12 kW AC excitation dynamic simulation electrical machine manufactured by Xiangtan Electrical Manufacturing Factory.Based on this,the performance of a new main protection scheme for the rotor winding based on stator branch harmonic circulation is analyzed,and the types of faults that the main protection scheme for the new rotor winding cannot operate are further clarified and corresponding improvement measures are proposed,which can provide a reference for the stable operation of the variable speed pumped storage units in the future domestic demonstration projects in China.This work is supported by the Science and Technology Project of SGCC(Research on Protection Technology for Large Capacity Variable Speed Pumped Storage Units,No.5100-202255006A-1-1-ZN).
作者
白珈宁
桂林
刘苗
李岩军
高晨光
曹天植
严乙桉
BAI Jianing;GUI Lin;LIU Miao;LI Yanjun;GAO Chenguang;CAO Tianzhi;YAN Yian(State Key Laboratory of Power System Operation and Control(Department of Electrical Engineering,Tsinghua University),Beijing 100084,China;State Grid Jibei Electric Power Co.,Ltd.,Beijing 100055,China;China Electric Power Research Institute Co.,Ltd.,Beijing 100192,China)
出处
《中国电力》
CSCD
北大核心
2024年第10期208-217,共10页
Electric Power
基金
国家电网有限公司科技项目(大容量可变速抽水蓄能机组保护技术研究,5100-202255006A-1-1-ZN)。
关键词
可变速抽蓄机组
转子绕组内部故障
多回路分析法
谐波分析
主保护设计
variable speed pumped storage unit
rotor winding internal short circuit fault
multi-loop analysis method
harmonic analysis
main protection design
作者简介
白珈宁(2000-),女,硕士研究生,从事变速抽蓄机组保护及故障分析研究,E-mail:1163590104@qq.com;通信作者:桂林(1974-),男,博士,副研究员,从事大机组保护及故障分析研究,E-mail:guilin99@mails.tsinghua.edu.cn;刘苗(1975-),男,高级工程师,从事电力系统自动控制及微机继电保护研究,E-mail:liu.miao@jibei.sgcc.com.cn。
