MRAC 기법과 좌표변환을 이용한 PWM 인버터 구동 PMSM의 데드타임 보상기법

다국어 초록 (Multilingual Abstract)

A simple and effective dead time compensation scheme for a PWM inverter-fed permanent magnet synchronous motor (PMSM) drive using the model reference adaptive control (MRAC) and coordinate transformation is presented. The basic concept is to first transform a time-varying disturbance caused by the dead time and inverter nonlinearity into unknown constant or slowly-varying one by the coordinate transformation, and then use the MRAC design technique to estimate this parameter in the stationary reference frame. Since the MRAC scheme is a suitable way of estimating such a parameter, the control performance can be significantly improved as compared with the conventional observer-based method tracking time-varying parameters. In the proposed scheme, the disturbance voltage caused by the dead time is effectively estimated and compensated by on-line basis without any additional circuits nor existing disadvantages as in the conventional methods. The asymptotic stability is proved and the effectiveness of the proposed scheme is verified.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. PMSM 모델링
• 3. 데드타임과 인버터 비선형성 효과
• 4. MRAC를 이용한 데드타임 보상
• 5. 시뮬레이션 결과
• 6. 결론
• References
• 저자소개

참고문헌 (Reference)

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