Conducted EMI reduction in single phase voltage source inverter with improved chaotic SPWM

This paper deals with the control of single phase voltage source inverter to reduce conductive electromagnetic interference (EMI) by improved chaotic sinusoidal PWM (CSPWM) method. Improvement in conventional CSPWM is obtain by tuning the parameters to maximize certain index, based on analysis of power spectrum density. First, CSPWM principle and its ability to conducted EMI reduction comparing to traditional SPWM is investigated in detail. Result shows that EMI emissions will be more eliminated if voltage spectrum become more flatter. Then spectral flatness factor is used for performance improvement. It is proved that this factor is good for prediction of conducted EMI level. Based on spectral flatness factor, the parameters are tuned and a new CSPWM is proposed. Simulation results, by using Matlab software, show the effectiveness of EMI reduction compare to the conventional CSPWM in low frequency bands.

[1]  R. Ramesh,et al.  Pseudorandom carrier based subharmonic PWM for cascaded multilevel inverters , 2014, 2014 IEEE International Symposium on Circuits and Systems (ISCAS).

[2]  J. Ferreira,et al.  Comparison and Reduction of Conducted EMI in SiC JFET and Si IGBT-Based Motor Drives , 2014, IEEE Transactions on Power Electronics.

[3]  Yen-Shin Lai,et al.  Effective EMI filter design method for three-phase inverter based upon software noise separation , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[4]  James D. Johnston,et al.  Transform coding of audio signals using perceptual noise criteria , 1988, IEEE J. Sel. Areas Commun..

[5]  Wolfgang A. Halang,et al.  The stability of a chaotic PWM boost converter , 2011, Int. J. Circuit Theory Appl..

[6]  F. Mihalic,et al.  Reduced Conductive EMI in Switched-Mode DC–DC Power Converters Without EMI Filters: PWM Versus Randomized PWM , 2006, IEEE Transactions on Power Electronics.

[7]  K.T. Chau,et al.  Design and Analysis of a Chaotic PWM Inverter for Electric Vehicles , 2007, 2007 IEEE Industry Applications Annual Meeting.

[8]  Hing Cheung So,et al.  Analysis and spectral characteristics of a spread-spectrum technique for conducted EMI suppression , 2000 .

[9]  H. Akagi,et al.  Modeling and Analysis for Simulation of Common-Mode Noises Produced by an Inverter-Driven Air Conditioner , 2010, IEEE Transactions on Industry Applications.

[10]  K. T. Chau,et al.  Introduction to Chaos Theory and Electric Drive Systems , 2011 .

[11]  R. Yang,et al.  Experiment Research of Chaotic PWM Suppressing EMI in Converter , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[12]  Giampaolo Buticchi,et al.  Active Common-Mode Filter for Ground Leakage Current Reduction in Grid-Connected PV Converters Operating With Arbitrary Power Factor , 2014, IEEE Transactions on Industrial Electronics.

[13]  Robert W. Erickson,et al.  Design of EMI Filters Having Low Harmonic Distortion in High-Power-Factor Converters , 2014, IEEE Transactions on Power Electronics.

[14]  K. El Khamlichi Drissi,et al.  Optimized dual randomized PWM technique for reducing conducted EMI in DC-AC converters , 2011, 10th International Symposium on Electromagnetic Compatibility.

[15]  Trillion Q. Zheng,et al.  Suppressing EMI in Power Converters via Chaotic SPWM Control Based on Spectrum Analysis Approach , 2014, IEEE Transactions on Industrial Electronics.

[16]  Frede Blaabjerg,et al.  A Simple Differential Mode EMI Suppressor for the $LLCL$-Filter-Based Single-Phase Grid-Tied Transformerless Inverter , 2015, IEEE Transactions on Industrial Electronics.

[17]  Shahriyar Kaboli,et al.  Application of Random PWM Technique for Reducing the Conducted Electromagnetic Emissions in Active Filters , 2007, IEEE Transactions on Industrial Electronics.

[18]  K.T. Chau,et al.  A chaotic PWM motor drive for electric propulsion , 2008, 2008 IEEE Vehicle Power and Propulsion Conference.