Investigating the Effect of Different PWM Modes on Ripple Reduction in Five-Phase BLDC Motor with New Method

Seyed Mohsen Mirbagheri, Seyed Sajjad Salehi GHalehsefid, Seyed Mohammad Hossein Mousavi

Abstract


Torque ripple is one of the main drawbacks of  brushless DC motors.  in the case of three phase motors, PWM modes have a significant effect on the generated torque ripple. So, like three phase BLDC motors, we investigate the effect of different PWM modes on torque ripple of five-phase BLDC motor that has less torque ripple  in high speed. in this investigation we will show that freewheeling current in inactive phase is important factor in torque ripple. Also simulation in matlab/Simulink prove this event.


Keywords


Five-phase BLDC motor – PWM control – neutral point

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DOI: http://doi.org/10.11591/ijeecs.v12.i7.pp5129-5136

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Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
p-ISSN: 2502-4752, e-ISSN: 2502-4760
This journal is published by the Institute of Advanced Engineering and Science (IAES) in collaboration with Intelektual Pustaka Media Utama (IPMU).

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