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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)