US 12,132,318 B2
Solar power generation network shut-off unit and a solar power generation network shut-off system provided with same
Hideaki Kojima, Kyoto (JP); Ryo Ogura, Kyoto (JP); and Mitsunori Sugiura, Kyoto (JP)
Assigned to OMRON CORPORATION, Kyoto (JP)
Appl. No. 17/629,037
Filed by OMRON CORPORATION, Kyoto (JP)
PCT Filed Feb. 18, 2020, PCT No. PCT/JP2020/006253
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/038916, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 2019-154492 (JP), filed on Aug. 27, 2019.
Prior Publication US 2022/0278530 A1, Sep. 1, 2022
Int. Cl. H02J 3/38 (2006.01); H02H 7/20 (2006.01); H02H 7/26 (2006.01)
CPC H02J 3/381 (2013.01) [H02H 7/20 (2013.01); H02H 7/26 (2013.01); H02J 2300/24 (2020.01)] 6 Claims
OG exemplary drawing
 
1. A solar power generation network shut-off unit that is disposed between a plurality of solar power generation modules and a power conditioner, and that shuts off the supply of power from the solar power generation modules to the power conditioner when an emergency shut-off button is pressed, the unit comprising:
a first circuit breaker that is provided on a power line connecting the solar power generation modules and the power conditioner in series, the first circuit breaker configured to shut off a supply of power from the solar power generation modules through the power line when the emergency shut-off button is pressed;
second circuit breakers that are provided to each of a plurality of the solar power generation modules, to which power is supplied from the first circuit breaker, the second circuit breakers configured to shut off the supply of power from the solar power generation modules through the power line when a supply of power through a power supply line is halted; and
the power supply line configured to connect between the first circuit breaker and the second circuit breakers, wherein the second circuit breakers are in closed state while receiving power from the first circuit breaker through the power supply line, and supply power from the first circuit breaker to the second circuit breakers,
when the first circuit breaker detects the pressing of the emergency shut-off button, the supply of power from the first circuit breaker to the second circuit breakers through the power supply line is halted, and the supply of power from the solar power generation modules to the power conditioner through the power line is shut off at the second circuit breakers.