Title:
THREE-PHASE ASYMMETRIC GRID-CONNECTED FILTER
Document Type and Number:
WIPO Patent Application WO/2023/087757
Kind Code:
A1
Abstract:
Disclosed is a three-phase asymmetric grid-connected filter, comprising a first inductor, a second inductor, a third inductor, a fourth inductor, a fifth inductor, a sixth inductor, a first resonant circuit, a second resonant circuit, and a third capacitor. The first inductor is connected to the second inductor, the first resonant circuit and the third capacitor; the third inductor is connected to the fourth inductor, the second resonant circuit and the first resonant circuit; the fifth inductor is connected to the second resonant circuit, the sixth inductor and the third capacitor; the first resonant circuit is composed of a first capacitor and a seventh inductor; and the second resonant circuit is composed of a second capacitor and an eighth inductor. Applying embodiments of the present invention can address the problems of an existing trap-type high-order filter having insufficient parameter drift resistance, and not being able to truly save inductance.
Inventors:
WU WEIMIN (CN)
ZHANG YAOZHONG (CN)
AN LIQIONG (CN)
ZHANG YAOZHONG (CN)
AN LIQIONG (CN)
Application Number:
PCT/CN2022/106442
Publication Date:
May 25, 2023
Filing Date:
July 19, 2022
Export Citation:
Assignee:
UNIV SHANGHAI MARITIME (CN)
International Classes:
H02J3/01; H02M1/12
Foreign References:
| CN114336623A | 2022-04-12 | |||
| CN102801292A | 2012-11-28 | |||
| SU1275640A1 | 1986-12-07 | |||
| CN103337945A | 2013-10-02 | |||
| JP2007300768A | 2007-11-15 |
Attorney, Agent or Firm:
SHANGHAI XINCHUANG PATENT AND TRADEMARK OFFICE (CN)
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