A New Type Hi-Speed BLDC Control System Base on Indirect Current Control Strategy

2017 International Conference on Environmental and Energy Engineering

生态环境科学;能源学

Wang, D.P.^1 ; Wang, Y.C.^1 ; Zhang, F.G.^1 ; Jin, S.^1

Shenyang University of Technology, 118 ShenLiao West Road, SY, 110870, China^1

关键词: Armature windings;    Diode rectifier;    Harmonic pollution;    High-frequency current;    Indirect current control;    Motor controllers;    Power factor corrections;    Topological structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/63/1/012018/pdf
DOI  :  10.1088/1755-1315/63/1/012018

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

High speed BLDC has the characteristic as larger air gap smaller armature inductance, traditional PWM modulation will produce a great number of high frequency current harmonics which led problem like large torque ripple and serious motor heat. In the meantime traditional PWM modulation use the diode rectifier which cause harmonic pollution in electric power net. To solve the problem above, proposes a new motor controller topology. Using the IGBT device to replace the diode on frequency converter rectifier side, apply the power factor correction technology, reduce the pollution on the grid. Using busbar current modulation on the inverter, driving bridge-arm use 3-phase 6-state open as driving Mode, realize the control on a 10000r/min,10kw BLDC. The results of Simulation on matlab show the topological structure as proposed can effectively improve the network side power factor and reduce the motor armature winding harmonic and motor torque ripple.