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Sparse Matrix Converter - Overview

• Quasi-Direct AC-AC conversion with no DC link energy storage elements
• Sinusoidal input current in phase with mains voltage
• Zero DC link current commutation scheme resulting in lower modulation complexity and high reliability
• Low complexity of power circuit / power modules available
• Ultra-Sparse Matrix Converter, does show very low realization effort, in case unidirectional power flow can be accepted (admissible displacement of 30° the input current fundamental and input voltage, as well as for the output voltage fundamental and output current), accordingly, a possible application area would be variable speed PSM drives of low dynamics.

• AC drives (e.g., mechanical integration of converter and machine)