Research on Effective Use of Parallel Feedforward Compensator in the Design of Control Systems

基于观测器的控制系统设计要求对对象模型的辨识精度。相反，利用所谓的几乎严格正真实性（ASPR）的设计方法提供了更广泛适用的实用设计方法，保证了闭环系统的稳定性。因此，实现实际装置ASPRness的并联前馈补偿器（PFC）在这一设计过程中起着重要的作用。到目前为止，PFC的研究领域还局限于自适应控制领域。本研究的目的是将基于PFC的控制系统设计方法推广到其他控制系统设计领域。研究表明，这种设计方法可以推广到稳定PID控制系统和输出反馈滑模控制系统的设计中。这些结果对面向输出反馈控制系统的实现具有很好的实际应用价值。这些方法在步进控制、多速率控制和声音控制的设计中也得到了检验。这些结果已发表在若干期刊和国际会议的论文集上。

Observer-based control system design requires the accuracy of the identification of plant model. On the contrary the design method of utilizing the so-called Almost Strictly Positive Realness (ASPR) gives more widely applicable practical design method which guarantees the stability of close loop system. Therefore, Parallel Feedforward Compensator (PFC) which realizes ASPRness of the practical plant plays an important role in such design procedure. Until now, the research area of PFC was limited in th e field of adaptive control. The aim of this research is to extend the PFC based control system design method to other control system design area.In this rese arch, it is shown that this design method can be extended to the design of stable PID control systems and the output feedback sliding mode control systems. These results are very practical in the application of output feedback oriented control system realization. These approaches are also examined in the design of Back stepping control, Multirate control and Sound control.These results have been presented in several journals and proceedings of international conferences.