【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。更多还原

【Abstract】 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.更多还原