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Sparse Matrix Converter - Overview

Characteristics of the Sparse Matrix Converter are
  • 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.
Possible fields of application
  • AC drives (e.g., mechanical integration of converter and machine)