鲁棒性固定反馈增益阵控制系统设计

讨论了一种鲁棒性控制器的设计方法。此法已在总能量控制系统(TECS)的设计中得到应用。本文基于根平面理论来讨论这一问题,从而避免了复杂的数学计算,仅利用几何作图或计算机辅助设计,使控制器成为满足一定带宽和超调要求的鲁棒控制器。

THE DESIGN OF ROBUST CONTROL SYSTEM WITH FIXED FEEDBACK GAIN MATRIX

A new design method of robust controller is discussed in this paper. This method finds a state or output feedback with fixed gains such that the stability and dynamic property of a system are robust with respect to large plant parameter variations and so on. The required magnitude of control inputs is kept small in this design. The system property considered in this paper is "nice stability and dynamic property" as specified by a region in the eigenvalue plane, in which all eigenvalues have to remain in spite of perturbations. In this paper, the design method based on the eigenvalue plane is discussed from simple to complication and the complicated mathematic calculation is avoided. Using graphic method or computer aid design, the controller becomes a robust controller with the nice stability and dynamic property. A specific design of a certain type of flight control system is also introduced and satisfactory simulation results are obtained.