摘要
针对化工串级过程提出了两种新颖的两自由度解耦控制结构。基于鲁棒控制H2最优性能指标设计给定值响应控制器。根据系统运行抗负载干扰要求,在中间级可测量过程的输入和输出端之间设计抑制负载干扰信号的闭环,通过提出期望闭环余灵敏度函数的方法来确定其反馈通道中的扰动观测器,同时给出了该闭环保证鲁棒稳定性的充要条件。最后通过实验显示了该方法相对于其它方法的优越性。
Two novel two-degree-of-freedom decoupling control structures are proposed for chemical and industrial cascade processes. The setpoint response controller is designed in terms of the robust control H2 optimal performance specification. According to the system operation requirement for load disturbance rejection,a closedloop for rejecting load disturbance signals is configured between the input and output of the intermediate measurable process ,and the disturbance observer in its feedback channel is figured out by proposing the desired closedloop complementary sensitivity function,and meanwhile ,the sufficient and necessary conditions are presented for holding the closed-loop robust stability. Finally, some experiments are included to show the superiority of the proposed method over other approaches.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2005年第8期775-778,804,共5页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金项目(60274032)
高校博士点基金项目(20030248040)
上海市科技启明星项目(04QMH1405)资助。
关键词
串级控制
两自由度
解耦
H2最优性能指标
Cascade control Two-degree of freedom Decoupling H2 optimal performance specification
