摘要
通过对浙江嘉兴发电厂二期工程600MW机组Unitrol 5000励磁系统进行参数校核,采用对比发电机空载阶跃现场试验结果与仿真计算结果的方法确定励磁系统数学模型参数。应用在线频率响应法对该励磁系统的电力系统稳定器(PSS)参数进行了整定,并应用Prony方法对有功功率的阶跃响应进行了分析,得到了系统低频振荡的频率、振幅、阻尼等模态信息,试验验证了PSS投入对提高本机振荡模式阻尼的作用。
The verified method and results of the excitation system model of 600 MW generator in Jiaxing Power Plant were presented. The parameters of power system stabilizer （PSS） for the excitation system were set by using online frequency response analysis method. The test results show that the post-setting parameters of PSS possess good adaptability, and the PSS can effectively suppress the low frequency oscillation within the frequency range from 0.2 Hz to 2.5 Hz, and possess good damping action. Then, Prony analysis was also carried out to prove that the PSS is effective to improve the damping of local oscillation mode.
出处
《中国电力》
CSCD
北大核心
2007年第8期15-19,共5页
Electric Power
关键词
励磁系统
模型
PSS
参数整定
excitation system
model
PSS
parameter setting
