publication . Article . 2016

PWM Ripple Currents Based Turn Fault Detection for Multiphase Permanent Magnet Machines

Hu, R.; Wang, J.; Sen, B.; Mills, A.R.; Chong, E.; Sun, Z.;
Open Access
  • Published: 20 Dec 2016 Journal: IEEE Transactions on Industry Applications, volume 53, pages 2,740-2,751 (issn: 0093-9994, eissn: 1939-9367, Copyright policy)
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • Country: United Kingdom
Most permanent magnet machines are driven by inverters\ud with pulse width modulation (PWM) voltages. The currents\ud contain high frequency (HF) components which are inversely\ud proportional to machine inductance. The HF PWM ripple\ud currents can be used to detect a turn fault that gives rise to\ud changes in inductance. The features of these HF components in\ud turn fault conditions are analyzed. A bandpass (BP) filter is designed\ud to extract the selected sideband components, and their\ud root-mean-square (RMS) values are measured. The RMS values\ud in all phases are compared. It is shown that the RMS ripple current\ud ratios between two adjacent phases pr...
free text keywords: Magnet, Fault detection and isolation, Inductance, Ripple, Electronic engineering, Engineering, business.industry, business, Voltage, Pulse-width modulation, Control engineering, Sideband, Electromagnetic coil
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Appl., vol. 47, no. 6, pp. 2402 2412, 2011. Rongguang Hu ( 16) was born in China. He received B.Eng. degree and M.Sc. degree in electrical engineering from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 2012 and 2015, respectively. He is currently pursuing the Ph.D. degree in electronic and electrical engineering at The University of Sheffield, U.K. His current research interests include power-electronic control of electric machines, sensorless control and fault diagnosis. Jiabin Wang 03) received the B.Eng. and M.Eng. degrees from Jiangsu University of Science and Technology, Zhenjiang, China, in 1982 and 1986, respectively, and the Ph.D. degree from the University of East London, London, U.K., in 1996, all in electrical and electronic engineering. Currently, he is a Professor in Electrical Engineering at the University of Sheffield, Sheffield, U.K. He was a Postdoctoral Research Associate at the University of Sheffield, Sheffield, U.K., from 1996 to 1997, and a Senior Lecturer at the University of East London from 1998 to 2001.

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