锅炉过热汽温H∞非脆弱鲁棒控制性能权函数选择研究  

Selections of performances weighting functions for H∞ non-fragile robust control to a superheated steam temperature system

作　　者：恒庆海[1] 鲁婧[1] 恒庆珠[2] 李博[3] 

机构地区：[1]北京信息工程学院,北京100101 [2]天津大学,天津300072 [3]北京机械工业学院,北京100085

出　　处：《电工电能新技术》2007年第4期1-4,46,共5页Advanced Technology of Electrical Engineering and Energy

基　　金：北京市自然科学基金重点资助项目(KZ200710772015);2006年北京市属市管高等学校"中青年骨干教师培养计划"资助项目

摘　　要：一般鲁棒控制方法研究在鲁棒稳定的前提下,考虑对干扰的抑制性能。但对于锅炉过热汽温实际系统,输入和干扰同时存在。提出了在鲁棒稳定的前提下,系统的实际输出性能才是控制系统设计的真正要求。针对实际干扰情况应采用不同的性能权函数,才能达到较好的系统输出性能。研究了性能权函数的选取。给出了求解锅炉过热汽温H∞非脆弱鲁棒PI控制器的方法,设计了H∞非脆弱鲁棒控制系统的PI控制器参数。通过仿真说明了性能权函数选择的重要性。The concept of the selections of the performances weighting functions to different disturbance is presented so that the common control system with the perturbations of the controlled members and the controllers can be designed. It is suggested that a class of design problem of the non-fragile robust controller can be formulated as a H ∞ mixed sensitivity. The performance can be improved to actual different disturbances of the uncertainties and the performances are discussed. The simulation results show that the proposed method is efficient and of the system. The selections of the weighting functions parameters of the PI controllers are designed. The feasible.

关 键 词：干扰 性能权函数 非脆弱鲁棒控制 鲁棒性能 控制器 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]