电力勘测设计Issue(z1)：38-44,7.DOI:10.13500/j.dlkcsj.issn1671-9913.2024.S1.007
300MW级压缩空气储能电站压缩机电动机继电保护方案研究
Research on Relay Protection Scheme of Compressor Motor in 300 MW Compressed Air Energy Storage Power Station
孙若笛 1殷佳尉 1徐陈成1
作者信息
- 1. 中国能源建设集团江苏省电力设计院有限公司,江苏 南京 211102
- 折叠
摘要
Abstract
Compressor motor is the core equipment of Compressed Air Energy Storage(CAES)power station.The compressor motors used in 300 MW CAES power station are mostly synchronous motors with large capacity,large quantity which need variable frequency starting.Its relay protection scheme is quite different from conventional power plant motors.In response to the above characteristics,this article studies the operation mode and relay protection scheme of compressor motors,proposes two differential protection schemes based on broadband current transformers and magnetic balanced current transformers,and verifies them through projects.The conclusion is that for compressor motors running at rated frequency with variable frequency starting,all the protection functions should be implemented by the inverter during starting stage,and the motor differential protection should be put into operation while running;The differential protection scheme based on broadband current transformers is preferred for the last compressor motor in variable frequency operation.关键词
压缩机电动机/同步电动机/变频调速系统/宽频电流互感器/磁通平衡电流互感器Key words
compressor motor/synchronous motor/variable frequency control system/broadband current transformer/magnetic current transformer分类
能源与动力引用本文复制引用
孙若笛,殷佳尉,徐陈成..300MW级压缩空气储能电站压缩机电动机继电保护方案研究[J].电力勘测设计,2024,(z1):38-44,7.
