A bidirectional ac / dc converter
By designing a bidirectional AC/DC converter, bidirectional energy transfer between DC and AC is achieved, solving the problem that existing systems cannot achieve bidirectional energy flow, improving energy transfer efficiency and power factor, and reducing the size of the converter.
CN117595701BActive Publication Date: 2026-05-26FSP POWERLAND TECHNOLOGY INC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FSP POWERLAND TECHNOLOGY INC
- Filing Date
- 2023-11-30
- Publication Date
- 2026-05-26
Smart Images
Figure CN117595701B_ABST
Abstract
This invention discloses a bidirectional AC / DC converter, belonging to the field of power conversion technology. It includes a first transformer and multiple switches. The opposite-named terminal of the primary winding of the first transformer is connected to the first terminal of the first switch. The opposite-named terminal of the secondary winding of the first transformer is connected to the first terminal of the second switch. The second terminal of the second switch is connected to the first terminal of the third switch. The second terminal of the third switch is connected to the same-named terminal of the secondary winding of the first transformer. The opposite-named terminal of the secondary winding of the first transformer is connected to the first terminal of the fourth switch. The second terminal of the fourth switch is connected to the first terminal of the fifth switch. The second terminal of the fifth switch is connected to the same-named terminal of the secondary winding of the first transformer. This bidirectional AC / DC converter enables bidirectional energy transfer. When the DC side is a photovoltaic module, it can provide reactive power to the capacitor on the photovoltaic module side, absorb reactive power on the photovoltaic module side, and adjust the power factor.
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