New developments of research on internal model control
内模控制研究的新发展

New developments of research on internal model control (IMC) are mainly described.The research methods and results of IMC,especially in nonlinear internal model control,are summarized and analyzed.The modeling methods in IMC were introduced in detail at first,and the advantages and disadvantages of those methods were pointed out.According to the trends of internal model control development,several key problems such as design of IMC controller,modification of IMC configuration,combination of IMC and other control methods were particularly analyzed.Finally,some misunderstanding in IMC research was pointed out and future research directions related to IMC were discussed.