Separation of Radiated EMI Noise based on Joint Approximate Diagonalization Algorithm

Authors

  • Zhibo Zhu School of Electrical and Automation Engineering Nanjing Normal University, Nanjing, 210046, China
  • Wei Yan School of Electrical and Automation Engineering Nanjing Normal University, Nanjing, 210046, China
  • Yang Zhao School of Electrical and Automation Engineering Nanjing Normal University, Nanjing, 210046, China
  • Xingfa Liu State Key Laboratory of Power Grid Environmental Protection Wuhan Branch of China Electric Power Research Institute Co., Ltd, Wuhan, 430074, China
  • Tao Zhang School of Electrical and Automation Engineering Nanjing Normal University, Nanjing, 210046, China

Keywords:

Common-differential mode mixed source, JADA algorithm, noise separation, radiated EMI

Abstract

Power electronic devices and electrical equipment produce a large quantity of radiated electromagnetic interference (EMI) in the working process. Electromagnetic field analysis method of the near-field and far-field of the antenna can be employed to separate the radiated interference noises. However, the method has low separation accuracy and requires a lot of time. A novel method based on joint approximate diagonalization algorithm (JADA) to separate the radiated EMI noise is proposed in this paper. Compared with the traditional independent component algorithm method, the accuracy is improved by 14% and the efficiency is increased by 30%. The common-differential mode mixed noise source is taken as the experimental object to demonstrate the effectiveness and simplicity of the proposed method.

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Author Biographies

Zhibo Zhu, School of Electrical and Automation Engineering Nanjing Normal University, Nanjing, 210046, China

Zhibo Zhu received his B.S. degree in Automation from Nanjing University of Information Science and Technology, Nanjing, China, in 2017. He is currently working in Electromagnetic Compatibility and Power Electronics Devices with Nanjing Normal University. His interest is the design of Electromagnetic Compatibility of chips.

Wei Yan, School of Electrical and Automation Engineering Nanjing Normal University, Nanjing, 210046, China

Wei Yan received his Electrical Engineering M.Sc. and Physics and Electronics Ph.D. degrees from Nanjing Normal University, Nanjing, China, in 2011, and 2014, respectively. Since 2014, he has been with Nanjing Normal University, where he is currently an Associate Professor. His research interests include integrated circuit electromagnetic compatibility testing, and electromagnetic compatibility design, etc.

Yang Zhao, School of Electrical and Automation Engineering Nanjing Normal University, Nanjing, 210046, China

Yang Zhao received his B.S., M.Sc., and Ph.D. degrees all in Power Electronic Technology from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 1989 and 1992, and 1995, respectively. Since 2002, he has been with Nanjing Normal University, where he is currently the Professor. His research interests are in the areas of Electromagnetic Compatibility, Power Electronics and Automotive Electronics.

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Published

2021-01-08

How to Cite

[1]
Zhibo Zhu, Wei Yan, Yang Zhao, Xingfa Liu, and Tao Zhang, “Separation of Radiated EMI Noise based on Joint Approximate Diagonalization Algorithm”, ACES Journal, vol. 36, no. 1, pp. 41–47, Jan. 2021.

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