Matrix Converter Active and Passive Protection Strategy Considerations

Abstract: This paper focusses on Matrix Converter (MC) protection strategies. In order to improve its ride-through capability, MC faults are classified and some software and hardware strategies are proposed. The influence of the clamp circuit in MC switches is analyzed, while a special emphasis is given to the blocking voltage of different MC topologies. Besides, the MC and doubly fed asynchronous induction machine (DFIM) interaction is theoretically studied in terms of the protection circuit and, finally, all the design parameters relating to a practical clamp circuit are defined in order to ensure its commercial use in full-scale applications. Key–Words: Matrix converter, clamp design, doubly fed asynchronous induction machine, DFIM, overvoltag