DESIGN AND IMPLEMENTATION OF SIMPLE COMMUTATION METHOD MATRIX CONVERTER

The indirect matrix converter is a converter with no energy storage dc-link. The lack of energy storage components in the dc-link is one of the advantages of the matrix converter. Furthermore, the matrix converter features full four-quadrant operation and sinusoidal input current. The output voltages ratio is limited to 0.866 of the input voltage. The indirect matrix converter needs six bidirectional switches in the rectification stage to connect with six unidirectional switches in the inversion stage. Bidirectional switches are not available on the market today and need to be constructed from semiconductor devices. Most research work about matrix converters has so far regarded the modulation and control of the matrix converter. The practical experience is still very limited. In this thesis presents a indirect matrix converter using simple commutation method base on AC/DC/AC converter. It combines the control method between the rectification stage and the inversion stage which can largely simplified modulation in rectification stage and all bidirection switches at line side turn on and turn off at zer