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확장성과 안정성을 고려한 동기제어계의 구축에 관한 연구
변정환,김영복,Byun, Jung-Hoan,Kim, Young-Bok 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.6
In this study, a methodology of synchronous control which can be applied to position synchronization of a multi-axes driving system has been developed. The synchronous error is caused by model uncertainties and disturbance at each axis. To overcome these problems, the synchronous control system of each axis has been composed of reference model, speed and synchronous controllers. The speed control system has been designed to follow speed reference. And the synchronous controller has been designed to keep minimizing the position synchronous error by reference model and H$\sub$ / approach. By the proposed method, position synchronous control system can be easily extended to two or more axes driving system. The effectiveness of the proposed method has been demonstrated by experiment.
H<sub>∞</sub>제어기법에 의한 커플링구조의 위치동기제어에 관한 연구
변정환,Byun, Jung-Hoan 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.10
In this study, a synchronous controller algorithm being applicable to two-axis position synchronzation is developed. Based on coupling structure, the synchronous control system is composed of speed and synchronous controllers. The speed controller is designed to follow a speed reference. In addition, the synchronous controller is designed from the viewpoint of accurate synchronization and robust stability in H$\infty$ synthesis. Finally, the effectiveness of the presented controller is demonstrated through extensive experiments.
외란 관측기와 PID제어기를 이용한 2축 주행시스템의 동기제어
변정환(JUNG-HOAN BYUN),김영복(YOUNG-BOK KIM),양주호(JOO-HO YANG) 한국해양공학회 2001 韓國海洋工學會誌 Vol.15 No.1
In this study, a methodology of synchronous control which can be applied to position synchronization of a two-axes driving system has been developed. The synchronous error is caused by model uncertainties and torque disturbance of each axis. To overcome these problems, the proposed synchronous control system has been composed of two speed controllers, disturbance observers, and one synchronous controller. The speed controllers, based on the PID control law are aimed at the following to speed reference. And the parameters of speed controllers have been designed in order for the speed response of the second axis to correspond with the one of the first axis. The disturbance observer has been designed to restrain the torque disturbance. The synchronous controller eliminates the synchronous error by controlling the speed of the second axis. The effectiveness of the proposed method has been verified through simulation.
An Identification Method of Secondary Resistance for Quick Torque Control in Induction Motors
Seok-Kwon Jeong(정석권),Jung-Hoan Byun(변정환) 한국해양공학회 1997 韓國海洋工學會誌 Vol.11 No.4
최근 유도전동기를 이용한 가변속 구동시스템의 수요가 자동화 및 에너지의 효율적 이용 측면에서 육상 산업체는 문론, 선박 및 해양플랜트에도 확산되고 있다. 유도전동기의 토크 고속제어법은 가변속 구동시스템의 고성능화를 위한 필수과제로서, 제어법 적용시 2차저항의 동정문제가 대단히 중요하다.<br/> 본 논문에서는 유도전동기의 토크 고속 응답제어계에 있어서 고정도의 토크응답을 실현하기 위한 2차저항 동정법을 제한한다. 제안된 방법은 모터의 회로방정식으로부터 유도되며, 모터의 인가전압과 1차전류 정보로부터 간단히 구현된다. 제안된 방안의 타당성을 검증하기 위하여 펄스폭변조방식의 전압형 인버터를 상정한 수치 시뮬레이션을 수행하며 그 결과를 통하여 제안방식의 유용성을 입증한다.