Common-Mode Voltage Mitigation for Back-to-Back Current-Source Converter With Optimal Space-Vector Modulation

Common-mode voltage (CMV) problem is one of the most important issues for back-to-back current-source converters. In this paper, the theoretical analysis is presented to clarify that the system CMV mainly depends on the CMV difference between a rectifier and an inverter. And then, a new CMV mitigation technique is proposed. Different from the existing methods, the proposed method coordinates the active and zero vectors of both rectifier and inverter in the back-to-back current converter, instead of eliminating zero vectors or optimal selection of a zero vector. In this way, the CMV difference between a rectifier and an inverter is minimized. Consequently, the system CMV can be significantly mitigated. Finally, the experimental tests are carried out on a 10-kVA back-to-back current-source converter, and experimental results verify the effectiveness of the proposed method.

[1]  Fred C. Lee,et al.  Effects of Interactions Between Filter Parasitics and Power Interconnects on EMI Filter Performance , 2007, IEEE Transactions on Industrial Electronics.

[2]  Bin Wu,et al.  DC link current minimization for high power current source motor drives , 2008, 2008 IEEE Power Electronics Specialists Conference.

[3]  Dushan Boroyevich,et al.  Intergrid: A Future Electronic Energy Network? , 2013, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[4]  Bin Wu,et al.  High-Power Converters and AC Drives , 2006 .

[5]  Arindam Ghosh,et al.  Power Management and Power Flow Control With Back-to-Back Converters in a Utility Connected Microgrid , 2010, IEEE Transactions on Power Systems.

[6]  A.M. Hava,et al.  Performance Analysis of Reduced Common-Mode Voltage PWM Methods and Comparison With Standard PWM Methods for Three-Phase Voltage-Source Inverters , 2009, IEEE Transactions on Power Electronics.

[7]  V.G. Agelidis,et al.  VSC-Based HVDC Power Transmission Systems: An Overview , 2009, IEEE Transactions on Power Electronics.

[8]  José R. Espinoza,et al.  PWM regenerative rectifiers: state of the art , 2005, IEEE Transactions on Industrial Electronics.

[9]  Seung-Ki Sul,et al.  A new active common-mode EMI filter for PWM inverter , 2003 .

[10]  K. K-F Yuen,et al.  An Active Low-Loss Motor Terminal Filter for Overvoltage Suppression and Common-Mode Current Reduction , 2012, IEEE Transactions on Power Electronics.

[11]  Hirofumi Akagi,et al.  A Passive EMI Filter for Eliminating Both Bearing Current and Ground Leakage Current from an Inverter-Driven Motor , 2005 .

[12]  D. Boroyevich,et al.  A Systematic Topology Evaluation Methodology for High-Density Three-Phase PWM AC-AC Converters , 2008, IEEE Transactions on Power Electronics.

[13]  Jian Sun,et al.  Common-mode EMI solutions for modular back-to-back converter systems , 2013, 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[14]  Alfio Consoli,et al.  Reduction of common mode currents in PWM inverter motor drives , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[15]  I. Baraia,et al.  An Experimentally Verified Active Gate Control Method for the Series Connection of IGBT/Diodes , 2012, IEEE Transactions on Power Electronics.

[16]  Bin Wu,et al.  Common-Mode Voltage Reduction Methods for Current-Source Converters in Medium-Voltage Drives , 2013, IEEE Transactions on Power Electronics.

[17]  A. Hernandez,et al.  Design of a Back-to-Back NPC Converter Interface for Wind Turbines With Squirrel-Cage Induction Generator , 2008, IEEE Transactions on Energy Conversion.

[18]  Vinod John,et al.  Common-Mode Filter Design for PWM Rectifier-Based Motor Drives , 2013, IEEE Transactions on Power Electronics.

[19]  Reijo Komsi,et al.  Experiences from a back-to-back converter fed village microgrid , 2010, 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe).

[20]  Seung-Ki Sul,et al.  Common mode voltage reduction method modifying the distribution of zero voltage vector in PWM converter/inverter system , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[21]  Yun Wei Li,et al.  A Space-Vector Modulation Method for Common-Mode Voltage Reduction in Current-Source Converters , 2014, IEEE Transactions on Power Electronics.

[22]  J.C.G. Wheeler,et al.  Effects of converter pulses on the electrical insulation in low and medium voltage motors , 2005, IEEE Electrical Insulation Magazine.

[23]  Bin Wu,et al.  High-Power Converters and ac Drives: Wu/High-Power Converters and ac Drives , 2006 .

[24]  Samir Kouro,et al.  Modeling and analysis of common-mode voltages generated in medium voltage PWM-CSI drives , 2003 .

[25]  Grzegorz Benysek,et al.  CM voltage compensation in AC/DC/AC interfaces for smart grids , 2011 .

[26]  Bin Wu,et al.  Unified DC-Link Current Control for Low-Voltage Ride-Through in Current-Source-Converter-Based Wind Energy Conversion Systems , 2011, IEEE Transactions on Power Electronics.

[27]  A.M. Hava,et al.  A Near-State PWM Method With Reduced Switching Losses and Reduced Common-Mode Voltage for Three-Phase Voltage Source Inverters , 2009, IEEE Transactions on Industry Applications.

[28]  Seung-Ki Sul,et al.  A common mode voltage reduction in boost rectifier/inverter system by shifting active voltage vector in a control period , 2000 .

[29]  Ritwik Majumder,et al.  A Hybrid Microgrid With DC Connection at Back to Back Converters , 2014, IEEE Transactions on Smart Grid.

[30]  Yen-Shin Lai,et al.  Optimal common-mode voltage reduction PWM technique for inverter control with consideration of the dead-time effects-part II: applications to IM drives with diode front end , 2004, IEEE Transactions on Industry Applications.

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

[32]  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 -.

[33]  Chung-Hsiao E. Rd,et al.  New Random Technique of Inverter Control for Common Mode Voltage Reduction of Inverter-Fed Induction Motor Drives , 1999 .

[34]  Yen-Shin Lai,et al.  Optimal common-mode Voltage reduction PWM technique for inverter control with consideration of the dead-time effects-part I: basic development , 2004, IEEE Transactions on Industry Applications.

[35]  Gianpaolo Vitale,et al.  Power-Loss Evaluation in CM Active EMI Filters for Bearing Current Suppression , 2011, IEEE Transactions on Industrial Electronics.

[36]  T. Friedli,et al.  Design and Performance of a 200-kHz All-SiC JFET Current DC-Link Back-to-Back Converter , 2009, IEEE Transactions on Industry Applications.

[37]  G. Vitale,et al.  An Optimized Feedback Common Mode Active Filter for Vehicular Induction Motor Drives , 2011, IEEE Transactions on Power Electronics.

[38]  Dushan Boroyevich,et al.  Investigation of Hybrid EMI Filters for Common-Mode EMI Suppression in a Motor Drive System , 2010, IEEE Transactions on Power Electronics.

[39]  S. J. Finney,et al.  Series-Connected IGBTs Using Active Voltage Control Technique , 2013, IEEE Transactions on Power Electronics.

[40]  Zeliang Shu,et al.  Single-Phase Back-To-Back Converter for Active Power Balancing, Reactive Power Compensation, and Harmonic Filtering in Traction Power System , 2011, IEEE Transactions on Power Electronics.