Analysis of PWM Strategy for Reduction of Conducted Electromagnetic Interference in an Adjustable-Speed AC Motor Drive

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This paper presents various pulse width modulation (PWM) strategies capable of reducing conducted electromagnetic interference (EMI) generated in PWM voltage-source inverter systems. EMI problems caused by both conducted and radiated noise emissions have become a great concern in electrical/electronic systems. Thus, their effects are currently considerably taken into account in circuit design phase in order to restrict or reduce these severe problems. The proposed PWM strategy, which is one of different traditional and/or novel reduction techniques to solve such a problem, is chosen as an EMI reduction method and studied herein. The simulated results show that active vector PWM strategy seems to be a good alternative for inverter system. The impact of dead time of PWM signals is also investigated and discussed.
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Adjustable-Speed AC Motor Drive; Conducted EMI; Electromagnetic Compatibility; PWM Strategy

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Abdolreza Esmaeli, Fazel Tavassoli, Suppressing of common-mode voltage, shaft voltage, leakage current and EMI generated by voltage source PWM inverter, International Electrical Engineering Journal (IEEJ), vol. 1 n. 1, 2011, pp. 529-535.

H. Akagi, T. Doumoto, A passive EMI Filter for Preventing High-Frequency Leakage Current from Flowing through the Grounded Inverter Heat Sink of an Adjustable-Speed Motor Drive System, IEEE Transactions on Industry Applications, vol. 41 n. 5, Sep./Oct. 2005, pp. 1215–1223.

S. Ogasawara, M. Fujikawa, H. Akagi, A PWM Rectifier/Inverter System Capable of Suppressing Both Harmonics and EMI, Electrical Engineering in Japan, vol. 141 n. 4, 2002, pp. 59–68.

J. Luszcz, K. Iwan, Conducted EMI Propagation In Inverter-fed AC Motor, Electrical Power Quality and Utilisation, Magazine, vol. 2 n. 1, 2006, pp. 47–51.

K.S. Kostov, V. Tuomainen, J. Kyyrä, T. Suntio, Designing power line filters for DC-DC converters, The 11th International Power Electric and Motion Control Conference (EPE-PEMC 2004), September 2-4, 2004, Riga, Latvia.

Yo-Chan Son, Seung-Ki Sul, A new active common-mode EMI filter for PWM inverter, IEEE Transactions on Power Electronics, vol. 18 n. 6, November 2003, pp. 1309–1314.

Hyosung Kim, Seung-Ki Sul, A novel filter design for output LC filters of PWM inverters, Journal of Power Electronics, vol. 11 n. 1, January 2011, pp. 74–81.

Sheng Ye, Wilson Eberle, Yan-Fei Liu, A novel EMI filter design method for switching power supplies, IEEE Transactions on Power Electronics, vol. 19 n. 6, November 2004, pp. 1668–1678.

Juergen Biela, Alexander Wirthmueller, Roman Waespe, Marcello Lobo Heldwein, Klaus Raggl, Johann W. Kolar, Passive and active hybrid integrated EMI filters, IEEE Transactions on Power Electronics, vol. 24 n. 5, May 2009, pp. 1340–1349.

H. Chen, Z. Qian, Z. Zeng, C. Wolf, Modelling of parasitic inductive couplings in a pi-shaped common mode EMI filter, IEEE Transactions on Electromagnetic Compatibility, vol. 50 n. 1, February 2008, pp. 71–79.

Vimala, R., Baskaran, K., Electromagnetic interference filter design based on noise impedance measurements for switching power converters, (2011) International Review of Electrical Engineering (IREE), 6 (2), pp. 593-598.

A.L. Julian, G. Oriti, T.A. Lipo, Elimination of common mode voltage in three phase sinusoidal power converters, IEEE Transactions on Power Electronics, vol. 14 n. 5, September 1999, pp. 982–989.

L.M. Tolbert, F.Z. Peng, T.G. Habetler, Multilevel converters for large electric drives, IEEE Transactions on Industry Applications, vol. 35 n. 1, Jan./Feb. 1999, pp. 36–44.

Melit, M., B. Nekhoul, N. Boudjerda, K. E. K. Drissi, and K. Kerroum, Investigation of electromagnetic emission in power converters,(2007) International Review of Electrical Engineering (IREE), 2 (2), pp. 203–216.

K. Mark Smith Jr., Keyue M. Smedley, A comparison of voltage-mode soft-switching methods for PWM converters, IEEE Transactions on Power Electronics, vol. 12 n. 2, March 1997, pp. 376–386.

Jaroslav Dudrik, Juraj Oetter, High-frequency soft-switching dc-dc converters for voltage and current dc power sources, Acta Polytechnica Hungarica, vol. 4 n. 2, 2007, pp. 29–46.

Haoran Zhang, Annette Von Jouanne, Shaoan Dai, Alan K Wallace, Fei Wang, Multilevel Inverter Modulation Schemes to Eliminate Common-Mode Voltages, IEEE Transactions on Industry Applications, vol. 36 n. 6, Nov./Dec. 2000, pp. 1645–1653.

C. Jettanasen, Passive Common-Mode EMI Filter Adapted to an Adjustable-Speed AC Motor Drive, The 9th International Power and Energy Conference (IPEC), October 27-29, 2010, Singapore.

G. Oriti, A.L. Julian, and T.A. Lipo, A New Space Vector Modulation Strategy for Common Mode Voltage Reduction, research report 97-20, Wisconsin Power Electronics Research Center, University of Wisconsin-Madison.


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