Three-phase single-stage multi-cavity parallel power conversion device and control method
By using a three-phase single-stage multi-cavity parallel power conversion device, the output voltage or current is adjusted by using multiple rectifier units in parallel and wide gain characteristics, which solves the problems of low conversion efficiency and high cost in the existing technology, and realizes efficient power conversion and improved power density.
CN116232097BActive Publication Date: 2026-05-26FSP POWERLAND TECHNOLOGY INC +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FSP POWERLAND TECHNOLOGY INC
- Filing Date
- 2023-01-05
- Publication Date
- 2026-05-26
Smart Images
Figure CN116232097B_ABST
Abstract
This invention provides a three-phase single-stage multi-cavity parallel power conversion device, comprising: an AC / DC conversion circuit, the input port of which is connected to three-phase alternating current; the output port of the AC / DC conversion circuit including a first terminal, a second terminal, and a third terminal; and a DC / DC conversion circuit including at least three rectifier units, wherein the first input terminal of each rectifier unit is connected to the first terminal via a first switch, the first input terminal of each rectifier unit is connected to the second terminal via a second switch, and the first input terminal of each rectifier unit is connected to the third terminal via a third switch; the output ports of the plurality of rectifier units are connected in parallel. This invention enables power factor correction and output current or voltage regulation, improving the reliability, conversion efficiency, and power density of the power conversion device.
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