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被控对象模型辨识的准确性。而利用所谓的几乎严格正实性（ASPR）的设计方法则给出了适用范围更广的保证闭环系统稳定性的实用设计方法。因此，并联前馈补偿器（PFC）实现了实际对象的ASPR在设计过程中起着重要的作用。迄今为止，PFC的研究范围仅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它控制系统设计领域，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。这些结果在输出反馈导向控制系统实现的应用中具有很强的实用价值。这些方法也被应用于Backstepping控制、Multirate控制和Sound控制的设计中，并在一些国际会议上发表。

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.