水力机组预测控制分析与研究  

Analysis of predictive control strategies for hydro-generator units

作　　者：孙美凤[1] 王铁生[1] 陆桂明[1,2] 

机构地区：[1]华北水利水电学院,郑州450011 [2]河海大学水利水电工程学院,南京210098

出　　处：《水力发电学报》2010年第4期230-234,共5页Journal of Hydroelectric Engineering

基　　金：河南省高等学校重点学科开放实验室基金资助;河南省教育厅自然科学研究基金资助2008A570004

摘　　要：水轮机调节系统是一个具有非线性、时变性的非最小相位系统,目前水轮机调速器大多采用常规PI或PID控制策略,难以满足和提高大型水轮机组或孤立电网带负荷机组调节系统的控制品质和要求,变参数PID调节、自适应控制、模糊控制等复杂和更高级的控制策略得到进一步研究,本文通过研究水轮机调节系统特性,采用预测控制原理设计控制器,从对比分析中找出较合适的控制结构和策略。The hydro-turbine governor is a nonlinear,time-varying and non-minimum phase system,and PI and PID are the most commonly used control methods of this system.These conventional methods can not,however,meet the need of a high-quality control,and further improvement on the control quality is difficult.For the large hydro-turbine generator sets or an isolated power grid,many new control strategies are studied and implemented,such as variable parameter PID regulator,adaptive control,fuzzy control and the other more advanced complicated controls.This paper examines the characteristics of turbine regulating system,designs the controllers with the predictive control theory,and tries to find out the more appropriate control structures and strategies by a comparative analysis.

关 键 词：水力机械 调速器 预测控制 PID控制 

分 类 号：TK730.48[交通运输工程—轮机工程]