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 EPE  Vol.5 No.4 B , July 2013
A Study on the Conducted Interference of Capacitor Charging Power Supply
Abstract: In this paper, a mathematical analysis of the EMI (Electromagnetic Interference) for a 20 kHz/10 kV capacitor charging power supply in frequency-domain is presented, and a related circuit model considering the transient switching interference is proposed. Due to the high working frequency and the device-switching transitions, the conducted EMI caused by the charging circuit which includes the harmonics of grid frequency, working frequency and device-switching transition frequencies. Thus under certain working situations or loads parallel power supply, the interference may cause charging failure. To solve this problem, a high frequency transformer modeled with stray capacitances and an approximation of the device-switching transition is applied in the Spice-based simulation model, and a mathematical analysis in frequency-domain is presented.
Cite this paper: X. Han, Y. Gao, Y. Sun and P. Yan, "A Study on the Conducted Interference of Capacitor Charging Power Supply," Energy and Power Engineering, Vol. 5 No. 4, 2013, pp. 1134-1138. doi: 10.4236/epe.2013.54B216.
References

[1]   W. L. Zhang, “Investigation on Switching Power Supply with High Voltage and High Power (M.S., Graduate school,” Chinese Academy of Sciences, Beijing, China, 2003.

[2]   D. Xing, “Development of the 50 kHz Capacitor Charging Power Supply using Series Resonant Topology (M.S., Graduate School,” Chinese Academy of Sciences, Beijing, China, 2010.

[3]   Z. A. Wang and J. Huang, “Power Electronics,” 4th Edition, China: Machine Press, 2002.

[4]   J. Biernacki and D. Czarkowski, “High Frequency Transformer Modeling,” ISCAS 2001: Sydney, Australia, 2001, pp. 676-679.

[5]   Y. A. Wang, “Study of A High Power Frequency Voltage Switch Supply and Monitor System for Electrostatic Precipitator (ESP) Use,” Ph.D., Shanghai Jiao Tong University, China, 2010.

[6]   H. Y. Lu, J. G. Zhu and S. Y. R. Hui, “Experimental Determination of Stray Capacitances in High Frequency Transformers,” IEEE Transactions.

[7]   Z. Y. Zhao, H. H. Qin and C. Y. Gong, “Influences and Suppression Method of Transformer Winding Capacitance in High-frenquency High-voltage Flyback Converter,” Advanced Technology of Electrical Engineering and Energy, No. 4, 2006, pp. 67-70.

[8]   Y. C. Liang and V. J. Gosbell, “Diode Forward and Reverse Recovery Model for Power Electronic SPICE Simulations,” IEEE Transactions on Power Electronics, Vol. 5, No. 3, 1990, pp. 346-356.

[9]   L. Z. Yao, “General Circuit Simulation Technology and Software Applications: Spice and Pspice,” Beijing: Publishing House of Electronics Industry, 1994.

[10]   W. M. Ma, L. Zhang and J. Meng, “Electromagnetic Compatibility of Independent Power System and Power Electronics Device,” 1st ed., Science Press, Beijing, 2007.

 
 
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