The invention relates to a decoupling control method of a non square system in the industrial process control technology field. First, improve the structure of internal model control, feedback in adding a first-order filter circuit of the output of the system, in order to increase the robust stability of the system, then the transfer function of non square processes from pseudo inverse method to derive the internal model controller, and by adding compensation, to eliminate the unstable factors in the controller may include then, the internal model controller will be similar to the low order controller is easy to realize. In the industrial control field, the decoupling control method of the non square system is given by the present invention, and the nominal performance and the robust performance of the user can be satisfied by adjusting the controller parameters. Decoupling control method and parameter adjustment method of the invention has wide application in non square system, not only can be used for ordinary non square systems with time delay, but also can be used with multiple delays and non minimum phase non party system.
【技术实现步骤摘要】
【技术保护点】
一种工业过程中非方系统的解耦控制方法，其特征在于，首先改进内模控制结构，在系统输出反馈回路中添加一个一阶滤波器，用以增加系统的鲁棒稳定性，然后采用对非方过程的传递函数取伪逆的方法来推导内模控制器，并通过添加补偿项，来消除控制器中可能包含的不稳定因素，再将最终得到的内模控制器近似为易实现的低阶控制器，实际运行控制系统时，首先推导出使系统满足鲁棒稳定条件的控制器参数的最低边界，然后在大于此最低边界的基础上，分别在线单调地增大每个回路的控制参数，直至获得符合工程要求的系统标称性能。
【技术特征摘要】
【专利技术属性】
技术研发人员：陈培颖，张卫东，蔡秋花，刘媛媛，王萍，
申请(专利权)人：上海交通大学，
类型：发明
国别省市：31[中国|上海]
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