Title:
INVERTER AND ALTERNATING CURRENT FAULT IDENTIFICATION METHOD FOR PHOTOVOLTAIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/000826
Kind Code:
A1
Abstract:
The present application provides an inverter and an alternating current fault identification method for a photovoltaic system. The method comprises: a controller performs waveform recording on the preset parameters of the photovoltaic system, and then uploads the recorded waveforms to an external device; and the external device having a high data storage capability and a high processing capability can store and subsequently process these waveforms, so as to accurately identify the fault of the alternating current side of an inverter. Moreover, an operator can see a fine waveform from the external device, so that the accuracy of system monitoring is greatly improved. Moreover, the external device makes full use of the advantages of storage capacity, big data, and computing power, analyzes the waveforms, and generates a control instruction to adjust the operation of the inverter, and thus, the control is more accurate. In addition, better system performance can be obtained by cooperating with local real-time and rapid control.
Inventors:
SU LIU (CN)
YU YANFEI (CN)
WU FENGLEI (CN)
LI XIAOXUN (CN)
YU YANFEI (CN)
WU FENGLEI (CN)
LI XIAOXUN (CN)
Application Number:
PCT/CN2022/095907
Publication Date:
January 26, 2023
Filing Date:
May 30, 2022
Export Citation:
Assignee:
SUNGROW POWER SUPPLY CO LTD (CN)
International Classes:
H02S50/00
Foreign References:
| CN102158129A | 2011-08-17 | |||
| CN106603003A | 2017-04-26 | |||
| EP1398687A2 | 2004-03-17 | |||
| CN105785174A | 2016-07-20 | |||
| CN205509664U | 2016-08-24 | |||
| CN202110819893A | 2021-07-20 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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