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시간지연 제어를 이용한 영구자석형 동기전동기의 개선된 비선형 속도제어
백인철(In-Cheol Baik) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-
An improved nonlinear speed control of a permanent magnet synchronous motor(PMSM) is presented. A quasi-linearized and decoupled model including the influence of parameter variations and speed measurement error on the nonlinear speed control of a PMSM is derived. Using this model, to overcome the drawbacks of conventional nonlinear control scheme, the improved nonlinear control scheme that employs time delay control(TDC) is proposed. To show the validity of the proposed control scheme, simulation studies are carried out and compared with the conventional control scheme.<br/> <br/>
적응제어와 슬라이딩제어를 이용한 영구자석 동기전동기의 비선형 강인제어
백인철(In-Cheol Baik),김경화(Kyeong-Hwa Kim),윤명중(Myung-Joong Youn) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
A DSP-based nonlinear speed control of a permanent magnet synchronous motor(PMSM) which is robust to unknown parameter variations and speed measurement error is presented The model reference adaptive system(MRAS) based adaptation mechanisms for the estimation of slowly varying parameters are derived using the Lyapunov stability theory. For the disturbances or quickly varying parameters, a quasi-linearized and decoupled model including the influence of parameter variations and speed measurement error on the nonlinear speed control of a PMSM is derived Based on this model, a boundary layer integral sliding mode controller to Improve the robustness and performance of a PMSM drive is designed and compared with the conventional controller. To show the validity of the proposed control scheme, simulations and experimental works are carried out and compared with the conventional control scheme
적응 입출력 선형화 기법을 이용한 Brushless DC Motor의 강인한 속도 제어
김경화(Kyeong-Hwa Kim),백인철(In-Cheol Baik),문건우(Gun-Woo Moon),윤명중(Myung-Joong Youn) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
A robust speed control scheme for a brushless DC (BLDC) motor using an adaptive input-output linearization technique is presented. By using this technique, the nonlinear motor model can be linearized in Brunovski canonical form, and the desired speed dynamics can be obtained based on the linearized model. This control technique, however, gives an undesirable output performance under the mis-match of the system parameters and load conditions. For the robust output response, the controller parameters will be estimated by a model reference adaptive technique where the disturbance torque and flux linkage are estimated. The adaptation laws are derived by the Popov's hyperstability theory and positivity concept. The proposed control scheme is implemented on a BLDC motor using the software of DSP TMS320C30 and the effectiveness is verified through the comparative experiments.