Title:
PHOTOVOLTAIC SYSTEM, PHOTOVOLTAIC ASSEMBLY, LOCAL MANAGER AND PHOTOVOLTAIC SYSTEM OPERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/193854
Kind Code:
A1
Abstract:
The present invention provides a photovoltaic system, a photovoltaic module, a local manager and a photovoltaic system operation method. The photovoltaic system comprises a photovoltaic module, a local manager, a main controller, and an inverter. The inverter is electrically connected to the photovoltaic module by means of a main line. One end of the local manager is connected to the photovoltaic module, and the other end of the local manager is connected to the main line. The local manager is communicationally connected to the main controller, such that the local manager is started within a scheduled period of time after receiving an allowable operation signal from the main controller, and the photovoltaic module outputs a normal voltage to the inverter, and in an unscheduled period of time, the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module. The photovoltaic system of the present invention does not need to determine whether the allowable operation signal skips some pulses, but directly turns on the photovoltaic module according to the presence and absence of the allowable operation signal and a prescheduled period of time, to reduce the judgment process, such that the reliability and the safety are enhanced.
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Inventors:
XU TAO (CN)
YANG ZHI (CN)
YANG ZHI (CN)
Application Number:
PCT/CN2022/074459
Publication Date:
September 22, 2022
Filing Date:
January 28, 2022
Export Citation:
Assignee:
CSI CELLS CO LTD (CN)
CANADIAN SOLAR MFG CHANGSHU INC (CN)
CSI SOLAR CO LTD (CN)
CANADIAN SOLAR MFG CHANGSHU INC (CN)
CSI SOLAR CO LTD (CN)
International Classes:
H02H3/20; H02S40/32; H02H5/12; H02H9/04; H02J3/38
Foreign References:
| CN214799407U | 2021-11-19 | |||
| CN111934352A | 2020-11-13 | |||
| CN111478290A | 2020-07-31 | |||
| US20160036235A1 | 2016-02-04 | |||
| US20110088741A1 | 2011-04-21 |
Attorney, Agent or Firm:
SUZHOU LINKED INTELLECTUAL PROPERTY AGENCY (CN)
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