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RISS 인기검색어
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- 저자 : 김용욱(ong-Wook Kim) (검색결과 1 건)
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자율적응 서보제어 시스템을 위한 샘플링 안정화를 이용한 전문가 PID 제어 시스템 설계
이성수(Seong-Su Lee),김용욱(ong-Wook Kim),박 환(Hwan Park) 산업기술교육훈련학회 2008 산업기술연구논문지 (JITR) Vol.13 No.1
Up to most recently, Servo motors and Induction motors were chiefly controlled by PID controllers for the speed change of acceleration and deceleration on industrial spots. This was because PID controllers are simple in structure and have good transient response characteristic as well as the controllers can easily remove normal state error. However the controlling performances of PID controllers are sensitive to the variation of system parameters and the robustness is low as the PID controllers do not have the capability of fast transient response to load disturbance. Accordingly, the parameters of PID controllers should be determined again to maintain control characteristic when system characteristic varies. In this paper, an expert PID controller by which feedback control gain is determined automatically to fit objective system characteristic even without using a complex algorithm, is proposed. Expert auto tuning algorithm is based on Ziegler-Nichols step response and expert knowledges. The method of the proposed system has the function to acquire the information on objective system through self-learning and adapt to the characteristic of main system, the same as a PID controller, and also have the function to automatically determine the parameters which fit to objective system and be synchronized to it even when load changes rapidly or disturbance is approved.
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