| 摘要 |
The disclosure discloses an electric energy conversion device and system, to solve the problems of severe harmonic pollution, low power factor during the electric energy feedback from a power generation device to a power grid in the conventional art. The electric energy conversion device comprises: a plurality of single-phase rectifier bridge circuits, a first input ends of the a plurality of single-phase rectifier bridge circuits are connected with an output end of each phase of an Alternating Current (AC) power supply one to one, and a second input ends of the a plurality of single-phase rectifier bridge circuits are connected together; and a plurality of three-phase fully-controlled bridge circuits, wherein two input ends of each three-phase fully-controlled bridge circuit are connected with two output ends of each the rectifier bridge circuit respectively, or, two input ends of each the three-phase fully-controlled bridge circuit are connected with two output ends of each the rectifier bridge circuit through an inductor respectively. Through the technical solution of the disclosure, the waveform coefficient of the current of the power generation device is improved, the harmonic wave is reduced, and the power factor is improved. |
