Switching strategies for an indirect matrix converter fed open-end load

In this paper an Indirect Matrix Converter (IMC) with two output stages feeding an open end load is presented. The IMC has the advantage of having no bulky energy storage elements and with the two output stages up to 1.5 times the input phase voltage can be obtained across the load without overmodulation. Two pulse width modulation strategies are presented. The first one is based on space vector modulation and suppresses the zero sequence voltage in the load. The second one is a carrier-based modulation and lower distorted input current is obtained. Results are presented and discussed.

[1]  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.

[2]  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 .

[3]  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).

[4]  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.

[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 , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[6]  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.

[7]  José R. Rodríguez,et al.  Matrix converters: a technology review , 2002, IEEE Trans. Ind. Electron..

[8]  K. Gopakumar,et al.  PWM inverter switching strategy for a dual two-level inverter fed open-end winding induction motor drive with a switched neutral , 2002 .

[9]  Ahmet M. Hava,et al.  Simple Analytical and Graphical Methods for Carrier-Based PWM-VSI Drives , 1999 .