摘要
对公伯峡水电站4号水轮发电机组控制系统结构、控制规律及各环节调节特性进行分析,建立了调节系统数学模型;对4号机一次调频试验过程进行仿真,并利用Matlab参数辨识工具箱中非线性最小二乘法对原始参数进行校验,取得了满意的效果;对水轮机及压力引水系统非线性模型进行改进,使仿真吻合度和参数辨识结果都得到很大改善。
The mathematical model of regulation system is set up through the analysis of system structure, control rule and regulation characteristics in No.4 hydroelectric generating set, Gongboxia Hydropower Station. Satisfactory effect has been obtained through the calibration of original parameter by nonlinear least square method which in Matlab parameter identification tool box. Nonlinear model of Hydrogenerator and pressure diversion system are improved to make simulation fitness and parameter identification result improve greatly.
出处
《陕西电力》
2009年第3期55-58,共4页
Shanxi Electric Power
关键词
水轮发电机组
一次调频
调节系统
仿真
参数辨识
hydroelectric generating set
primary frequency modulation
modulation system
simulation
parameter identification
