IPMSM의 맥동하는 구형파 신호 주입 센서리스 제어를 위한 정지좌표계상에서의 새로운 위치 추정 기법 (A Novel Rotor Position Estimation Method using a Rotation Matrix for a Square-Wave Signal Injected Sensorless Control in IPMSM)

서지정보

· 발행기관 : 전력전자학회
· 수록지 정보 : 전력전자학회 논문지 / 21권 / 3호 / 215 ~ 223페이지
· 저자명 : 김상일, 김래영

초록

In this study, a novel rotor position sensorless estimation method of an interior permanent-magnet synchronous motor is proposed. A square-wave pulsating voltage signal is injected in the estimated synchronous reference frame. This signal is interpreted in the stationary reference frame regardless of the estimated rotor position. Thus, assuming that the position error is nearly zero is unnecessary because the variables in the estimated synchronous reference frame are not used. The rotor position can be exactly calculated from two voltage references and three sampled current feedbacks in the stationary reference frame. The proposed method is easy to implement and helps enhance the bandwidth of the current controller. The validity of the proposed method is verified by simulations and experiments.

영어초록

In this study, a novel rotor position sensorless estimation method of an interior permanent-magnet synchronous motor is proposed. A square-wave pulsating voltage signal is injected in the estimated synchronous reference frame. This signal is interpreted in the stationary reference frame regardless of the estimated rotor position. Thus, assuming that the position error is nearly zero is unnecessary because the variables in the estimated synchronous reference frame are not used. The rotor position can be exactly calculated from two voltage references and three sampled current feedbacks in the stationary reference frame. The proposed method is easy to implement and helps enhance the bandwidth of the current controller. The validity of the proposed method is verified by simulations and experiments.

참고자료

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