This technology development funded under NaMPET, is jointly executed by IISc, Bangalore & CDAC(T). The objective of the project is to develop the converter topology and control technique of a MATRIX Converter.

The matrix converter offers an "all silicon" solution for AC-AC conversion, removing the need for reactive energy storage components used in conventional rectifier-inverter based systems. It does not have any dc-link circuit and does not need any large energy storage elements. A 3-phase to 3-phase matrix converter consists of nine bi-directional switches that are used to connect the input phases directly to the output phases of the converter. The switching of these bi-directional switches is then modulated to produce the desired output voltage and frequency. Matrix converters offer many advantages over traditional topologies such as the ability to regenerate energy back to the utility, sinusoidal input and output currents and controllable input current displacement factor. The size of the converter can also be reduced since there are no large reactive components for energy storage.

Expected outcome in physical terms will be a 50 kVA rated 3ph/3ph MATRIX converter designed and developed at C-DAC, Trivandrum and a 10kVA unit developed at IISc, Bangalore, and detailed testing will be conducted on the proto units.