전자공학회논문지S (Journal of the Korean Institute of Telematics and Electronics S)
- 제34S권3호
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- Pages.24-32
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- 1997
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- 1226-5837(pISSN)
폐루프시스템의 성능을 보장하는 이산제어기 차수축소
Discrete controller order reduction with the closed-loop performance guaranteed
초록
This paper is on a discrete controller order reduction with the closed-loop stability and performance guaranteed. to achieve this, after finding the solutionsof two lyapunov inequalities and balancing the full order controller system, we find the reudced order controlers using the balanced truncation (BT) and the balanced singular perturbation approximation (BSPA). When the solutions of the two lyapunov inequalities exist, it is shown that the resulting controllers guarantee the closed-loop stability, and .inf.-norm error bounds are derived for the closed-loop performance region for the BT and in low frequency region for the BSPA. Finally, a numerical example is given to illustrate the validity of the proposed method.
키워드