새로운 스위칭함수를 이용한 가변구조 위치제어기 = Variable Structure Position Controller Using New Switching Function

다국어 초록 (Multilingual Abstract)

A control system of brushless dc machine position control based on Variable Structure System approach is presented. In order to simplify the overall control system and to improve the robustness of position controller, a new switching function which composed of linear combination of only measurable state variables Sr(x) and Sr(x) is defined. With this proposed method, good dynamic and steady state behaviors of the overall system are obtained without any external load torque observer. A general PWM amplifier is replaced by an ON―OFF pattern generator for digitalization and a digital signal processor(DSP) is used for high speed switching. Experimental results are given to demonstrate the validity of the proposed control method.