| 초록 |
A robust design method of multi-loop PID controllers is presented in this paper. This design method has many advantages. First of all, effects of noises and disturbances can be rejected by an appropriately designed multi-loop feedback controller. Secondly, the feedback control can reduce the effects of plant uncertainty. Thirdly, it is easy to express the plant dynamics perfectly by using feedback mathematical models. Finally, the multi-loop PID controller can be designed for maintaining stability of the closed-loop and acceptable level of performance in the MIMO systems which contain uncertainties in plant description, so the multi-loop control system can achieve robust stability and robust performance. |
