Title:
CONVERTER, METHOD AND SYSTEM APPLIED TO PHOTOVOLTAIC POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/003728
Kind Code:
A1
Abstract:
Provided are a converter, method and system applied to a photovoltaic power generation system. The converter comprises: a controller and at least one switch tube, and the converter supports the access of at least two photovoltaic units, wherein the at least two photovoltaic units are connected in series inside the converter by means of the switch tube, and each of the photovoltaic units is formed by connecting at least one photovoltaic assembly in series and in parallel; and the controller is used for controlling, when receiving a shutdown instruction or losing a heartbeat instruction within a preset time period, the switch tube to be disconnected, so as to disconnect any two of the photovoltaic units that are connected together in series. By using the converter provided in the present application, any two photovoltaic units that are connected in series can be disconnected when a photovoltaic power generation system is shut down, such that no dangerous high pressure is present in a photovoltaic array formed of photovoltaic units, thereby improving the safety of the photovoltaic power generation system.
Inventors:
GU GUILEI (CN)
YAO XIAOFENG (CN)
YAO XIAOFENG (CN)
Application Number:
PCT/CN2019/095545
Publication Date:
January 14, 2021
Filing Date:
July 11, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02H3/24
Foreign References:
| CN106602504A | 2017-04-26 | |||
| CN107078691A | 2017-08-18 | |||
| CN109245711A | 2019-01-18 | |||
| CN105723614A | 2016-06-29 |
Other References:
See also references of EP 3905465A4
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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