ABB MACH2系统与国产RCS-977型换流变压器保护在直流输电工程中的应用

The Application of MACH2 and RCS-977 Converter Transformer Protection in HVDC Project

ABB MACH2换流变压器保护以及国产RCS-977型换流变压器保护装置,在国内高压直流输电工程中均有应用。本文以这两种保护在龙政、宜华直流输电工程中的应用进行介绍和对比,包括:两种保护软件、硬件设计方面的比较,保护设计理念和优、缺点等分析。对比和分析结果可为今后直流输电工程中换流变压器保护的设计选型提供参考。

The converter transformer protection of MACH2system and RCS-977protection device have all applied to domestic HVDC projection.In the paper,the application of two protection on Longquan-zhengping and Yidu-huaxin HVDC project is introduced and compared,include the comparison of protection hardware and software design,analysis of protection's design idea,advantages and disadvantages etc.The comparison and analysis results can provide reference for the converter transformer protection design in future HVDC projection.