默拉直流无功功率控制逻辑优化研究  

Research on Optimization of Reactive Power Control Logic of Matiari⁃lahore HVDC

作　　者：于鹏 殷丕盛 袁茂凯 罗鑫 张楷 YU Peng;YIN Pisheng;YUAN Maokai;LUO Xin;ZHANG Kai(State Grid Shandong Electric Extrahigh Company,Jinan 250118,China)

机构地区：[1]国网山东省电力公司超高压公司,山东济南250118

出　　处：《山东电力技术》2021年第12期51-55,共5页Shandong Electric Power

摘　　要：默拉直流工程是巴基斯坦的首条直流输电工程,将有效解决巴基斯坦突出的电力供应不足问题。无功功率控制是直流系统中进行滤波器投切的主要控制模式,默拉直流小功率调试期间,拉合尔换流站模拟极Ⅰ线路故障,极Ⅰ退出直流功率转代极Ⅱ,极Ⅱ由全压运行转至0.7 pu降压运行,试验中发现无功功率控制在达到动作限值时,无法正确投入滤波器。通过对无功功率控制逻辑进行分析,提出优化方案,并进行软件及现场试验验证,可为今后相关工程提供技术参考。The Matiari⁃lahore HVDC project is the first HVDC project in Pakistan,Vdtage will effectively solve the outstanding power supply shortage in Pakistan.Reactive power control is the main control mode for filter switching in HVDC system.During the low⁃power commissioning of Matiari⁃Lahore HVDC,the line fault of pole I was simulated in Lahore converter station.Pole I exited DC power to replace pole II,and pole II changed from full DC voltage operation to 0.7 pu reduced DC voltage operation.It was found in the test that reactive power control could not put into the filters correctly when it reached the action limit.Through the analysis of reactive power control logic,the optimization scheme was proposed.The software testing and field test verification were carried out to provide reference for future related projects.

关 键 词：默拉直流 无功功率控制 滤波器 降压运行 

分 类 号：TM771[电气工程—电力系统及自动化]