2014•Applied Mechanics and MaterialsOpen access

Experiment Research on Five-Segment Type Space Vector Pulse Width Modulation for Permanent Magnetic Brushless DC Motor

Zhi Ling Liao, Xiao Lei Cai, Hong Ping Jia, Wei Dong Shi

Abstract

Traditional square current driving method has deficiencies in muting and efficiency when controlling the brushless DC motor. This paper presents a method of space vector pulse width modulation for BLDCM, which is in five-segment type. A mathematical model of BLDCM, which is ind-qcoordinate system, was established. Then, the experimental platform was constructed with the STM32F103 for BLDCM of electric vehicle. And the experiment results verify the properties of little torque ripple, smooth operation and low switching losses. Besides, the system dynamic and static performance is greatly improved, and has strong robustness. The method proposed overcomes the shortcomings of square current driving method in control efficiency and motor noise.

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Available abstract

Key concepts: DC motor, Torque ripple, Pulse-width modulation, Control theory (sociology), Robustness (evolution), Ripple, Computer science, Torque