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측정오차와 외란을 고려한 유도전동기의 강인한 속도제어에 관한 연구
蔡英茂,尹炳道,金燦起,鄭憲主 충주대 산업과학기술연구소 1995 産業科學論文集 Vol.3 No.-
It is difficult to control industrial drive systems because of load disturbance, parameter variation and measurement noise. So a theorem is required to have robustness for the measurement noise and disturbance. This paper is among the researches of solving these problems. Sliding mode state observer is robust for measurement noise, modeling-error and load disturbance. The pole of sliding mode state observer can be placed at (0,0) in Z-plane for fast response. This method is, namely, deadbeat control. One side, sliding mode state observer output is discontinuous on a switching hyperplance, that causes harmful effects such as current harmonics and speed oscillation. In this paper, also the reducing method of the chattering of sliding mode state observer output is proposed. In this paper, the method of designing a robust sliding mode state observer taking account of the ability of disturbance and noise attenuation is proposed. Also, the proposed control system is digitally implemented with TMS320C31.