Title:
PHOTOVOLTAIC MODULE TURN-OFF APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/142906
Kind Code:
A1
Abstract:
A photovoltaic module turn-off apparatus, comprising an auxiliary power supply, a control module, a switching device, and a series path for connecting a first photovoltaic module and a second photovoltaic module in series. The input end of the auxiliary power supply is connected to the output end of the first photovoltaic module or the input end of the auxiliary power supply is connected to the output end of the second photovoltaic module, and the auxiliary power supply is connected in series to the switching device; the switching device is arranged on an output path between the first photovoltaic module and the positive output end of the photovoltaic module turn-off apparatus or on an output path between the second photovoltaic module and the negative output end of the photovoltaic module turn-off apparatus or on the series path between the first photovoltaic module and the second photovoltaic module; the control module is connected to the control end of the switching device and configured to control on/off of the switching device. According to the photovoltaic module turn-off apparatus provided in the present application, connection between two photovoltaic modules and an inverter is controlled by one photovoltaic module turn-off apparatus, and compared with a photovoltaic module turn-off apparatus for a single photovoltaic module, the number of electronic devices is greatly reduced.
Inventors:
LUO YUHAO (CN)
Application Number:
PCT/CN2020/078740
Publication Date:
July 22, 2021
Filing Date:
March 11, 2020
Export Citation:
Assignee:
HAINING YUNENG ELECTRONIC CO LTD (CN)
International Classes:
H02J3/38
Foreign References:
| CN207150526U | 2018-03-27 | |||
| CN111313825A | 2020-06-19 | |||
| CN207543063U | 2018-06-26 | |||
| CN206775459U | 2017-12-19 | |||
| CN107947543A | 2018-04-20 | |||
| CN106602504A | 2017-04-26 | |||
| CN105262138A | 2016-01-20 | |||
| CN110417388A | 2019-11-05 | |||
| US20170294780A1 | 2017-10-12 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF:
Previous Patent: PHOTOVOLTAIC INVERTER
Next Patent: PNEUMATIC NAILER CAPABLE OF ADJUSTING NAILING DEPTH
Next Patent: PNEUMATIC NAILER CAPABLE OF ADJUSTING NAILING DEPTH