지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2004.10
- 수록면
- 160 - 164 (5page)
이용수
초록· 키워드
오류제보하기
A Direct torque and flux control design for a sensorless induction motor, following a sliding mode observer is presented. In this control scheme, the torque error signal and the reference amplitude of the stator flux vector are delivered to a PI predictive controller. The predictive controller also uses information on the amplitude and position of the actual stator flux vector and measured current to determine the voltage command vector for space
vector modulation (SVM). Using the fifth order model of three-phase induction machines in a stationary two axes reference frame, a sliding- mode (SM) observer is developed based on equivalent control concept in order to estimate the rotor speed and rotor time constant simultaneously. The stability of SM observer is proved by Lyapunov theory. In addition, a simple Lyapunov-based estimator is also used for on-line detecting of the stator resistance. Moreover, a composite SM controller is employed that combines nominal linear quadratic feedback control (LQC) and a SM contyrol. The composite speed controller, makes the drive system states follow the nominal trajectories in spite of parameter uncertainties and external load torque disturbance. The effectiveness of the proposed control scheme is verified by computer simulation.
vector modulation (SVM). Using the fifth order model of three-phase induction machines in a stationary two axes reference frame, a sliding- mode (SM) observer is developed based on equivalent control concept in order to estimate the rotor speed and rotor time constant simultaneously. The stability of SM observer is proved by Lyapunov theory. In addition, a simple Lyapunov-based estimator is also used for on-line detecting of the stator resistance. Moreover, a composite SM controller is employed that combines nominal linear quadratic feedback control (LQC) and a SM contyrol. The composite speed controller, makes the drive system states follow the nominal trajectories in spite of parameter uncertainties and external load torque disturbance. The effectiveness of the proposed control scheme is verified by computer simulation.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. INDUCTION MOTOR MODEL
Ⅱ. IM DTC-SVM SCHEME
Ⅳ. SPEED CONTROLLER
Ⅴ. SLIDING MODE OBSERVER
Ⅵ. SYSTEM SIMULATION
Ⅶ. CONCLUSION
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2009-560-014544010