Circulating current control and reduction in a paralleled converter test-bed system

It is a flexible and effective approach to emulate the behaviors of electric power system components using interconnected parallel power converters. The reduction of unnecessary circulating current is essential for the validity of the test-bed system. The types of the circulating current in the test bed system are discussed in this paper. The causes and the reduction strategies for the switching period circulating current, zero sequence circulating current and lower order harmonics are presented. Simulation and experimental results are given to verify the feasibility.

[1]  Dushan Boroyevich,et al.  DC-Link Ripple Current Reduction for Paralleled Three-Phase Voltage-Source Converters With Interleaving , 2011, IEEE Transactions on Power Electronics.

[2]  Frede Blaabjerg,et al.  Shunt Active-Power-Filter Topology Based on Parallel Interleaved Inverters , 2008, IEEE Transactions on Industrial Electronics.

[3]  Jing Wang,et al.  Regenerative power converters representation of grid control and actuation emulator , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[4]  Zhe Chen,et al.  An improved design of virtual output impedance loop for droop-controlled parallel three-phase voltage source inverters , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[5]  Ching-Tsai Pan,et al.  Modeling and Control of Circulating Currents for Parallel Three-Phase Boost Rectifiers With Different Load Sharing , 2008, IEEE Transactions on Industrial Electronics.

[6]  David J. Atkinson,et al.  Real-time emulation for power equipment development. Part 1: Real-time simulation , 1998 .

[7]  G. Venkataramanan,et al.  Parallel operation of voltage source inverters with minimal intermodule reactors , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[8]  S. Turner,et al.  Power system emulation using a real time, 145 kW, virtual power system , 2005, 2005 European Conference on Power Electronics and Applications.

[9]  J. Miret,et al.  A wireless controller to enhance dynamic performance of parallel inverters in distributed generation systems , 2004, IEEE Transactions on Power Electronics.

[10]  Yu Zhang,et al.  The restrain of the dead time effects in parallel inverters , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[11]  J. Luukko,et al.  Modeling and Analysis of the Dead-Time Effects in Parallel PWM Two-Level Three-Phase Voltage-Source Inverters , 2009, IEEE Transactions on Power Electronics.

[12]  Achim Woyte,et al.  Virtual synchronous generator: Laboratory scale results and field demonstration , 2009, 2009 IEEE Bucharest PowerTech.

[13]  Jian Sun,et al.  A Comprehensive Study of Harmonic Cancellation Effects in Interleaved Three-Phase VSCs , 2007, 2007 IEEE Power Electronics Specialists Conference.

[14]  Ching-Tsai Pan,et al.  Modeling and Coordinate Control of Circulating Currents in Parallel Three-Phase Boost Rectifiers , 2007, IEEE Transactions on Industrial Electronics.

[15]  Jing Wang,et al.  Hardware implementation and control design of generator emulator in multi-converter system , 2013, 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[16]  Zhihong Ye.  Modeling and Control of Parallel Three-Phase PWM Converters , 2000 .

[17]  T.-P. Chen,et al.  Circulating zero-sequence current control of parallel three-phase inverters , 2006 .

[18]  Huan Yang,et al.  Study on Ideal Operation Status of Parallel Inverters , 2008, IEEE Transactions on Power Electronics.

[19]  Tsung-Po Chen,et al.  Common-Mode Ripple Current Estimator for Parallel Three-Phase Inverters , 2007, IEEE Transactions on Power Electronics.

[20]  Y. Komatsuzaki,et al.  Cross current control for parallel operating three phase inverter , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.