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This paper proposes a new high-efficiency solar power conditioner suitable for interface with thin-film solar cells, which is composed of a zigzag-connected chopper (ZCC) converter and a series active power filter. The ZCC converter provides a bipolar rectangle voltage pulse, even where the negative terminal of the dc input is grounded without line- or high-frequency transformer. The series active...
This paper presents operating performance of a three-phase solar power conditioner introducing a single-phase pulse-width modulation (PWM) method. The proposed modulation method turns on or off only one of the three-phase legs in each PWM-carrier period. Thus, the proposed method makes it possible to reduce the average switching frequency by a factor of three and to reduce the switching power loss...
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