摘要
为解决火电单元机组协调控制系统的动态非线性和耦合特性,设计了基于T-S模糊模型和动态解耦PID控制器的模糊多模型协调控制系统。首先针对一个500MW单元机组的仿真模型,绘出了其相对非线性测度曲线,并据此得出了单元机组在典型工作点的5个线性化模型;然后对每个线性化模型分别设计了动态解耦PID控制器,并用T-S模糊模型合成出协调控制系统的全局控制器;最后使用Lyapunov稳定性定理及其推论对此协调控制系统的全局稳定性进行了证明。仿真研究证明了控制算法设计的有效性。
In order to solve the problem of nonlinear and couple characteristics of the coordinated control system for fossil-fired boiler-turbine unit, a fuzzy multi-model control system based on T-S fuzzy model and dynamic decouple PID is proposed. First a relative nonlinear measure curve of 500MW boiler-turbine unit model is drawn, and then based on this curve, 5 linearized models of the unit at representative working points are obtained, a dynamic decouple PID controller for each linear model is designed and a global controller of the coordinated control system is composed by T-S fuzzy model. Finally, the global asymptotical stability of the control system is proved by Lyapunov stability theorem and its corollary. A simulation is done to testify the validity of the control algorithm.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2003年第10期199-203,共5页
Proceedings of the CSEE
基金
高等学校博士学科点专项科研基金(20020079007)
国家电力公司重大科技项目(SP11-2001-02036)~~
