Title:
INVERTING CONVERSION CIRCUIT AND PHOTOVOLTAIC POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/024111
Kind Code:
A1
Abstract:
Disclosed in the present application are an inverting conversion circuit and a photovoltaic power generation system. The inverting conversion circuit comprises: multiple access terminals, a half-bridge switch unit, an output capacitor unit, a resonance unit, a series diode unit, an energy storage switch unit, an input unit, an output unit, and a controller. The energy storage switch unit comprises at least one switching device and a first diode, the at least one switching device being connected in series with the first diode. The controller is used to: by means of controlling the switch devices in the half-bridge switch unit and the energy storage switch unit to connect or disconnect, convert a first voltage input by the input unit into a second voltage, so that the output unit outputs the second voltage. Compared with existing topology structures, the inverting conversion circuit structure provided by the present application can reduce the number of diodes in the circuit and reduce board space occupied by the circuit, such that the loss and cost of the whole circuit are reduced, and power density is significantly increased.
Inventors:
BIAN QING (CN)
CHEN WENBIN (CN)
CHEN WENBIN (CN)
Application Number:
PCT/CN2021/115149
Publication Date:
March 02, 2023
Filing Date:
August 27, 2021
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02M3/07; H02M7/48; H02M7/487; H02M7/493
Foreign References:
| EP2709257A2 | 2014-03-19 | |||
| CN105207256A | 2015-12-30 | |||
| CN107425722A | 2017-12-01 | |||
| CN107482903A | 2017-12-15 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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