DC-to-AC power converter

摘要

The present invention comprises a DC-to-AC power converter (1) comprising:
- a current-type DC-to-AC converter (70) having a first DC input (80) and a first AC output (85), said first DC input (80) being connected in parallel to said main DC input (10) and said first AC output (85) being connected in parallel to said main AC output (20); and
- control means (110) for :
- controlling said bidirectional voltage-type DC-to-AC converter (50) for delivering at said first AC output-input (65) a substantially sinusoidal AC voltage of said fundamental frequency f 0 ;
- controlling said current-type DC-to-AC converter (70) for delivering at said first AC output (85) a substantially quasi square-type AC current of said fundamental frequency f 0 and substantially in phase with said substantially sinusoidal AC voltage;
- imposing that at least 70% of said rated current is provided by said current-type DC-to-AC converter (70).