Torque Ripple Suppression Method for BLDCM Drive Based on Four-Switch Three-Phase Inverter

Lei Pan; Hexu Sun; Beibei Wang; Gang Su; Xiuli Wang; Guili Peng

Torque Ripple Suppression Method for BLDCM Drive Based on Four-Switch Three-Phase Inverter

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Type: Academic journal

Author: 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)

Journal: THE KOREAN INSTITUTE OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.15 No.4 KCI Accredited Journals SCIE

Published: 2015.7

Pages: 974 - 986 (13page)

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Torque Ripple Suppression Method for BLDCM Drive Based on Four-Switch Three-Phase Inverter

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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.

#DC offset #Fault-tolerant inverter #Flux observer #Stator resistance #Voltage space vector

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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[학술지(정기간행물)] - S. De / 2012 / Low-inductance axial flux BLDC motor drive for more electric aircraft / IET Power Electronics 5 (1) : 124 ~ 133

[학술지(정기간행물)] - H.-W. Kim / 2013 / Optimization methods of torque density for developing the neodymium free SPOKE-type BLDC motor / IEEE Trans. Magn. 49 (5) : 2173 ~ 2176

[학술지(정기간행물)] - D. K. Kastha / 1994 / Investigation of fault modes of voltage-fed inverter system for induction motor drive / IEEE Trans. Ind. Appl. 30 (4) : 1028 ~ 1038

[학술지(정기간행물)] - M. Khan / 2009 / Development and implementation of a novel fault diagnostic and protection technique for IPM motor drives / IEEE Trans. Ind. Electron. 56 (1) : 85 ~ 92

[학술지(정기간행물)] - B.-K. Lee / 2003 / On the feasibility of four-switch three-phase BLDC motor drives for low cost commercial applications: Topology and control / IEEE Trans. Power Electron. 18 (1) : 164 ~ 172

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