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논문 기본 정보

자료유형
학술저널
저자정보
Lei Pan (Tianjin Chengjian University) Hexu Sun (HeBei University of Technology) Beibei Wang (Tianjin Chengjian University) Gang Su (Tianjin Chengjian University) Xiuli Wang (Tianjin Chengjian University) Guili Peng (Tianjin Chengjian University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.15 No.4
발행연도
2015.7
수록면
974 - 986 (13page)

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초록· 키워드

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A novel inverter fault-tolerant control scheme is proposed to drive brushless DC motor. A fault-tolerant inverter and its three fault-tolerant schemes (i.e., phase A fault-tolerant, phase B fault-tolerant, and phase C fault-tolerant) are analyzed. Eight voltage vectors are summarized and a voltage vector selection table is used in the control scheme to improve the midpoint current of the split capacitors. A stator flux observer is proposed. The observer can improve flux estimation, which does not require any speed adaptation mechanism and is immune to speed estimation error. Global stability of the flux observer is guaranteed by the Lyapunov stability analysis. A novel stator resistance estimator is incorporated into the sensorless drive to compensate for the effects of stator resistance variation. DC offset effects are mitigated by introducing an integral component in the observer gains. Finally, a control system based on the control scheme is established. Simulation and experiment results show that the method is correct and feasible.

목차

Abstract
I. INTRODUCTION
II. SYSTEM DESCRIPTION OF THE INVERTER TOPOLOGY AND PHASE CURRENT ANALYSIS
III. TORQUE RIPPLE SUPPRESSION FOR FSTPI BLDCM DRIVE
IV. FLUX CALCULATION
V. OBSERVER PARAMETER SELECTION
VI. EXPERIMENTAL RESULTS
VII. CONCLUSION
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