Control of an open-end winding induction machine via a two-output indirect matrix converter

In this paper an Indirect Matrix Converter (IMC) with two output stages feeding an open-end winding induction machine is presented. The IMC has the advantage of having nobulky energy storage elements and with the two output stages up to 1.5 times the input phase voltage can be obtained across the windings of the machine, without overmodulation. A vector control scheme for the machine currents is used along with a modulation strategy for the converter two-output stages to reduce the common mode voltage and compensate the phase zero sequence currents. Simulation results showing the performance of the controlscheme and the reduction of zero sequence and common mode voltages are presented and discussed.

[1]  T.A. Lipo,et al.  A novel matrix converter topology with simple commutation , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[2]  Sebastian Gruber,et al.  Zero sequence current elimination for dual-inverter fed machines with open-end windings , 2010, IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society.

[3]  Shaoan Dai,et al.  A multilevel inverter approach providing DC-link balancing, ride-through enhancement, and common-mode voltage elimination , 2002, IEEE Trans. Ind. Electron..

[4]  A. von Jouanne,et al.  A dual-bridge inverter approach to eliminating common mode voltages and bearing and leakage currents , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.

[5]  F. Blaabjerg,et al.  Modulation method for a multiple drive system based on a two-stage direct power conversion topology with reduced input current ripple , 2005, IEEE Transactions on Power Electronics.

[6]  J. Erdman,et al.  Effect of PWM inverters on AC motor bearing currents and shaft voltages , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[7]  V. T. Somasekhar,et al.  PWM switching strategy for the elimination of common mode voltage of a two-level inverter drive with an open-end winding induction motor configuration , 2010, 2010 Joint International Conference on Power Electronics, Drives and Energy Systems & 2010 Power India.

[8]  V. T. Somasekhar,et al.  Pulse width-modulated switching strategy for the dynamic balancing of zero-sequence current for a dual-inverter fed open-end winding induction motor drive , 2007 .

[9]  Ned Mohan,et al.  Modulation strategies for direct-link drive for open-end winding AC machines , 2009, 2009 IEEE International Electric Machines and Drives Conference.