Implementation for indirect matrix converter fed open-end winding load using space vector pulse width modulation

In this paper, the structure of indirect matrix converter (IMC) is presented and the space vector pulse width modulation method (SVPWM) is analyzed to apply for this converter. The advantage point of IMC is directly connected a load to a three-phase power source using six bidirectional switches and twelve unidirectional switches without using any intermediate energy storage element. IMC stands out with low input harmonic, while compact design. The main study idea is combining between an IMC and a dual two-level inverter for an open-end winding load to enhance the converter output quality as well as kept the IMCs advantage. The SVPWM is sequentially analyzed for rectifier and inverter stage to generate the switching pattern for the converter. Finally, experiment result is shown to demonstrate the reality of topology.

I. Introduction

Matrix converters (MCs) were first mentioned in the early 1980's by Alesia and Venturini. They are classified into two kinds of topologies: direct matrix converter (DMC) and indirect matrix converter (IMC). this converter has drawn more attention due to the development of power device technology and the evolution of high-speed microcontroller unit. These topologies are well-known with low harmonic input due to sinusoidal input/output current waveforms, controllable input power factor, operations in all four quadrants of the torque-speed plane because of the regenerative capability and long life due to the bulk store energy element is removed in dc-link [1].