Title:
PHOTOVOLTAIC CONTROL APPARATUS AND METHOD, AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/088491
Kind Code:
A1
Abstract:
The present application relates to the technical field of photovoltaic power generation, and provides a photovoltaic control apparatus and method, and a system, being used for reducing a system cost. The apparatus is applied to a photovoltaic system comprising a plurality of strings, and comprises a control circuit, a first path circuit, a second path circuit, and an inverter circuit; the control circuit is used for controlling a direct-current electrical signal of at least one first string in the plurality of strings to be transmitted by means of the first path circuit; the first path circuit is used for performing MPPT processing on the direct-current electrical signal of the first string; the control circuit is also used for controlling a direct-current electrical signal of at least one second string in the plurality of strings to be transmitted by means of the second path circuit; the inverter circuit is used for converting the direct-current electrical signal of the second string or the processed direct-current electrical signal of the first string into an alternating-current electrical signal.
Inventors:
ZHANG YANZHONG (CN)
SHU ZHENHUAN (CN)
WANG XUN (CN)
SHU ZHENHUAN (CN)
WANG XUN (CN)
Application Number:
PCT/CN2020/113097
Publication Date:
May 14, 2021
Filing Date:
September 02, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J3/38
Foreign References:
| CN110932310A | 2020-03-27 | |||
| CN204578458U | 2015-08-19 | |||
| CN104158208A | 2014-11-19 | |||
| CN202364144U | 2012-08-01 | |||
| US20130294126A1 | 2013-11-07 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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