Invention Grant
- Patent Title: Inverter, power generating system, and method for suppressing harmonic distortion of alternating current system
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Application No.: US17081076Application Date: 2020-10-27
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Publication No.: US11336094B2Publication Date: 2022-05-17
- Inventor: Rongliang Shi , Zhangping Shao , Kai Xin
- Applicant: HUAWEI TECHNOLOGIES CO., LTD.
- Applicant Address: CN Guangdong
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Guangdong
- Agency: Womble Bond Dickinson (US) LLP
- Priority: CN201810401979.1 20180428
- Main IPC: H02J3/01
- IPC: H02J3/01 ; H02J3/38 ; H02M1/12 ; H02M1/44 ; H02M7/539

Abstract:
An inverter includes an inverter circuit; an alternating current filter, where an input port of the alternating current filter is connected to an output port of the inverter circuit; an alternating current electromagnetic interference (EMI) filter; and a first alternating current switch, connected between an output port of the alternating current filter and an input port of the alternating current EMI filter. The first split capacitor is disposed between the first alternating current switch and the input port of the alternating current EMI filter; and when the first alternating current switch is turned off, the first split capacitor is disconnected from the output port of the alternating current filter, and the first split capacitor is connected to a circuit in which an alternating current system connected to the output port of the alternating current EMI filter is located, to suppress harmonic distortion of the alternating current system.
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