Title:
POWER CONVERTER AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/088121
Kind Code:
A1
Abstract:
Provided in the present application are a power converter and a control method therefor. The power converter comprises an output inductor, an output capacitor, a first current sampling circuit, a first-phase bridge arm, a second-phase bridge arm, a third-phase bridge arm and a controller. The midpoint of the first-phase bridge arm is connected to a first input end of the power converter, the midpoint of the second-phase bridge arm is connected to one end of the output capacitor and a second input end of the power converter, and the midpoint of the third-phase bridge arm is connected to the other end of the output capacitor by means of the output inductor; the other end and one end of the output capacitor are respectively connected to a first output end and a second output end of the power converter; the second input end and the second output end of the power converter are both connected to a neutral wire; the first current sampling circuit is arranged on a connecting line between the midpoint of the second-phase bridge arm and one end of the output capacitor, and is used for collecting an inductive current of the output inductor; and the controller is used for obtaining an output current of the power converter on the basis of the inductive current of the output inductor. By using the present application, the circuit cost of a power converter can be reduced.
Inventors:
ZHANG HEJUN (CN)
LU MAOYONG (CN)
HU YUQIAO (CN)
LU MAOYONG (CN)
HU YUQIAO (CN)
Application Number:
PCT/CN2023/125115
Publication Date:
May 02, 2024
Filing Date:
October 18, 2023
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02M1/00; G01R19/00; H02M7/5387
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