Title:
Z-SOURCE NETWORK ACTIVE NEUTRAL POINT CLAMPED FIVE-LEVEL PHOTOVOLTAIC GRID-CONNECTED INVERTER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/171769
Kind Code:
A1
Abstract:
A Z-source network active neutral point clamped five-level photovoltaic grid-connected inverter system, comprising a Z-source network (1) which is connected with a direct current bus connected with a photovoltaic cell panel, and an active neutral point clamped five-level inverter (2) which is connected with the Z-source network. An output end of the active neutral point clamped five-level inverter is connected with a power grid by means of a filter inductor (L3). The inverter system can reduce the filter inductance magnitude of the photovoltaic grid-connected inverter system and the switching frequency of the inverter system, and can improve the reliability of the photovoltaic grid-connected inverter system.
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Inventors:
HUANG MIN (CN)
YANG YONG (CN)
FANG GANG (CN)
LU JINJUN (CN)
XIE SHENGREN (CN)
YANG YONG (CN)
FANG GANG (CN)
LU JINJUN (CN)
XIE SHENGREN (CN)
Application Number:
PCT/CN2018/080352
Publication Date:
September 27, 2018
Filing Date:
March 23, 2018
Export Citation:
Assignee:
GOODWE POWER SUPPLY TECH CO LTD (CN)
International Classes:
H02M7/487; H02J3/38
Foreign References:
| CN106911261A | 2017-06-30 | |||
| CN206542338U | 2017-10-03 | |||
| CN104167947A | 2014-11-26 |
Other References:
GAO, F. ET AL.: "Five-Level Z-Source Neutral-Point-Clamped Inverter", 7TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS, 2007, 11 April 2008 (2008-04-11), pages 1054 - 1061, XP031242644
WANG, HONGLIANG ET AL.: "New Low-Cost Five-Level Active Neutral-Point Clamped Converter", 2016 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC), 12 May 2016 (2016-05-12), pages 1489 - 1496, XP032898977
WANG, HONGLIANG ET AL.: "New Low-Cost Five-Level Active Neutral-Point Clamped Converter", 2016 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC), 12 May 2016 (2016-05-12), pages 1489 - 1496, XP032898977
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY LTD. (CN)
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