制御性能を改善する制御器の時変要素に関する考察
2004 年 40 巻 1 号 p. 54-61
詳細
2004 年 40 巻 1 号 p. 54-61
In this paper, we propose a new approach to design time-varying (TV) controllers for LTV plants by dealing with a performance inequality directly. The controller has a structure composed of a linear time-invariant (LTI) part and a TV one. We design the latter part to enhance l2 induced norm performance of the closed loop. We also precisely show a relationship between the available information for the TV controllers and the improvement of the performances compared with LTI controllers. This result supports the well-known result by Poolla et al. on a performance limitation of TV controllers for a robust control problem as a special case.
