TURN-OFF DEVICE, COMMUNICATION METHOD OF TURN-OFF DEVICE, AND QUICK TURN-OFF PHOTOVOLTAIC SYSTEM

WIPO Patent Application WO/2023/066317

A1

Disclosed is a turn-off device, comprising a first input end, a second input end, an output end, a first turn-off module, a second turn-off module, and a control module. The first turn-off module comprises a first switch tube, and the first switch tube controls output power of a first direct-current power supply coupled with the first input end; the second turn-off module comprises a second switch tube, and the second switch tube controls output power of a second direct-current power supply coupled with the second input end; the control module modulates a power control signal and the first communication signal to generate a first composite control signal, the power control signal adjusts the output power of the first direct-current power supply coupled with the first input end, and the first composite control signal controls the first switch tube to operate in a high-frequency switch state so as to superpose, on a power bus, a current ripple signal containing the first communication signal; the control module also generates a switch control signal to control an operating state of the second switch tube. According to the present invention, the integration level and the power density of the turn-off device can be improved, and the production cost is reduced.

YU HONGBIN (CN)
ZHOU SHIGAO (CN)
WU YANWEI (CN)
ZHAO YI (CN)
YANG BO (CN)

PCT/CN2022/126260

April 27, 2023

October 19, 2022

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HOYMILES POWER ELECTRONICS INC (CN)

H02J3/38

CN110429580A	2019-11-08
CN102624427A	2012-08-01
CN112821458A	2021-05-18
US20200335976A1	2020-10-22
US20180248359A1	2018-08-30

CVC INTELLECTUAL PROPERTY AGENCY CO. (CN)

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