完善DEH机组调频控制提高电网调频品质  

Improving the Frequence-modulated Control of DEH Unit and the Quality of Electric Net

作　　者：张龙英[1] 马庆中[1] 

机构地区：[1]山西电力科学研究院,山西太原030001

出　　处：《机械工程与自动化》2006年第4期144-145,147,共3页Mechanical Engineering & Automation

摘　　要：对某电网两起线路故障后引起电网频率的超调量明显偏大、过渡时间过长而暴露的机组调频方面的问题进行了全面分析,说明了完善DEH机组调频控制功能、改善调节特性对保证供电质量、提高电网调频品质有很大的作用。The problems of frequency modulation were studied,including over modulation and long transition time after line faults. The resulzs show that improving the frequence-modulated characteristic of DEH unit is very important to guarantee the power quality.

关 键 词：线路故障 DEH机组 调频控制 

分 类 号：TM133[电气工程—电工理论与新技术]