A vehicle mounted super high speed permanent magnet brushless motor drive

ZHANG Qian; FENG Ming; CHEN Jun; REN Tian-ming

doi:10.13374/j.issn2095-9389.2017.10.016

Volume 39 Issue 10

Oct. 2017

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ZHANG Qian, FENG Ming, CHEN Jun, REN Tian-ming. A vehicle mounted super high speed permanent magnet brushless motor drive[J]. Chinese Journal of Engineering, 2017, 39(10): 1565-1574. doi: 10.13374/j.issn2095-9389.2017.10.016

Citation:

ZHANG Qian, FENG Ming, CHEN Jun, REN Tian-ming. A vehicle mounted super high speed permanent magnet brushless motor drive[J]. Chinese Journal of Engineering, 2017, 39(10): 1565-1574. doi: 10.13374/j.issn2095-9389.2017.10.016

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A vehicle mounted super high speed permanent magnet brushless motor drive

doi: 10.13374/j.issn2095-9389.2017.10.016

School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2016-12-07

Abstract

Abstract

Because of lower inductance and higher commutation frequency, caused by high-frequency current harmonics induced by the PWM control, super high speed permanent magnet brushless motors commonly face overheating of both the rotor and stator. For chopping directly at the inverter, the frequency should be increased to reduce the current harmonics. But for the 10 kW class motor drives used in the air compressors of fuel cell vehicles, the power switch devices currently do not fulfill the needs of switch frequency and power simultaneously. Therefore, it is not a good choice to regulate the speed by chopping at the inverter. Aimed at reducing losses in the stators and rotors, this paper presented the design of a pre-Buck square wave drive for reducing current harmonics. By optimizing the back electromotive force (EMF) filter circuit and commutation compensation angle, the operation range of sensorless control CAN was extended to 3000-100000 r·min^-1. The key points encountered during the drive development were analyzed and solutions proposed. Finally, the excellent performance of the drive was demonstrated by experiment.
- eddy current loss,
- fuel cell,
- Buck converter,
- super high speed motors,
- air compressor

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References(10)

References

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