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Variable Structure Control of Ultrasonic Motor
Tomoyoshi Takeuchi,Yutaka Nagai,Phongchai Phatpanichot 전력전자학회 1989 ICPE(ISPE)논문집 Vol.- No.-
In position control system using ultrasonic motor, the velocity of control object is controlled to approach the desired specified velocity patterns, and eventually, the position of control object is correctly at reference position This intention, here, can be success by means of variable structure control In this paper, the PI velocity feedback control is also used inside variable structure controller in order to compensate the velocity offset The design of position controller under specified velocity profiles in variable structure control's constraints is studied.