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주파수제어에 의한 MU-60 초음파모터의 온도보상에 관한 연구
서기열(Ki-Yeol Sea),신일철(Il-Ghul Shin),임중열(Jung-Yeol),최장균(Jang-Gun Choi),차인수(In-Su Gha) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
This paper describes the bending traveling-wave type ultrasonic motor which generates the traveling wave by combining two standing waves with phase difference time and space. In +20℃ ~30℃, the operation characteristic of USM has represented normal condition. But in the other temperature, the operation characteristic of USM has abnormal condition, that is driving frequency, drive current and r.p.m are down. The recent USM has controller without temperature compensation. This study aimed at fuzzy controller which must follow the frequency at operation temperature and then r.p.m and torque increased.