计及调速器死区影响的两区域互联电力系统AGC研究  

Research on AGC of Two-Area Interconnected Power System Considering the Effect of the Governor Dead Band

作　　者：温步瀛[1] 

机构地区：[1]福州大学电气工程与自动化学院,福州350108

出　　处：《电工技术学报》2010年第9期176-182,共7页Transactions of China Electrotechnical Society

基　　金：福建省自然科学基金资助项目(2008J0018)

摘　　要：自动发电控制在电力系统运行中是十分重要的。但为了减少调速器的频繁动作而设置调节死区,从而增加了控制系统的复杂性。本文利用非线性系统中的描述函数法将调速器死区进行线性化,建立了计及调速器死区特性影响的两区域互联电力系统自动发电控制的仿真模型,并采用改进的粒子群优化算法对其积分参数和区域频率偏差系数进行寻优。通过对两区域互联电力系统自动发电控制系统的仿真分析,结果表明新建模型更能真实反映自动发电控制调节过程的动态性能,同时也说明了该处理方法的合理性。Automatic generation control （AGC） is very important to power system operation. But for reducing its action number,it should be set a dead band for governor,as a result to increase its complexity. In this paper a new simulation model considering the effect of governor dead band nonlinearity by using the describing function approach for automatic generation control studies of two-area system is proposed. And an improvement particle swarm optimization algorithm used to optimum the parameters of the integral controller and area frequency deviation coefficient. Through the simulation analysis of the automatic generation control system of two-area interconnected power system,the results show that the new proposed model can actually enough to express the performances of the automatic generation control system,and that this method is effective.

关 键 词：描述函数 调速器死区 自动发电控制 粒子群优化 

分 类 号：TM761[电气工程—电力系统及自动化]