水轮机调节中高精度模糊控制器的应用  

Application of high precision fuzzy controller to turbine regulation system

作　　者：田勇[1] 沈祖诒[2] 

机构地区：[1]河南工业大学机电工程学院,河南郑州450007 [2]河海大学水利水电工程学院,江苏南京210098

出　　处：《水利水电科技进展》2006年第5期55-58,共4页Advances in Science and Technology of Water Resources

基　　金：河南省高校青年骨干教师资助计划;河南省高校杰出科研人才创新工程资助项目(NO.2005kycx014)

摘　　要：设计了高精度模糊控制器的输入、输出伸缩因子及模糊控制规则和控制器的结构;对水轮机调节系统建立近似数学模型。分别用固定参数PID控制器、普通模糊控制器、高精度模糊控制器在水轮机受负荷干扰,传递系数变化的情况下进行仿真研究,得出结论:在被控对象数学模型不够精确、参数发生变化或发生负荷扰动时,高精度模糊控制器的动态特性好,鲁棒性强,优于其他两种控制器。The input and output contraction-expansion factor, the fuzzy control rule, and the structure of high precision fuzzy controller were designed, and a model for simulation of turbine regulation system was developed. A simulative study is performed of the turbine regulation system by use of the PIED controller with invariable parameters, common fuzzy controller, and high precision fuzzy controller under the condition that the load disturbance is considered and the transfer coefficient is varied. It is concluded that the high precision fuzzy controller is superior to the other two controllers in dynamic characteristic and robustness when the mathematic model of the objectives to be controlled is not precise enough, and the parameters and loads are variable.

关 键 词：高精度模糊控制器 伸缩因子 水轮机调节系统 数学模型 仿真试验 

分 类 号：TV734[水利工程—水利水电工程]