A new simplified method to design a robust position controller for a DC servomotor

In this paper, a new method to design a robust position controller for a DC servomotor is proposed. The robust position-controller will ensure the closed-loop control system achieves the asymptotic tracking for a reference input of certain type p/sub 1/ and the complete rejection for a disturbance signal of certain type p/sub 2/. The proposed method has the following advantages: (1) proposing a systematic procedure for synthesizing the robust position controller, and (2) presenting a closed-form solution to the control law. Furthermore, an example is given to illustrate the effectiveness of the proposed method.<
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