LOAD DEVICE, LOAD DEVICE CONTROL METHOD, LOAD DEVICE CONTROL PROGRAM, AND DIRECT-CURRENT POWER SUPPLY SYSTEM

WIPO Patent Application WO/2019/135387

A1

The present invention both reduces power consumption and notifies a user of power shortage before a load device stops. A direct-current power supply system 1 that comprises a direct-current bus 100A, direct-current power sources (a wind power generation device 10, a solar power generation device 20, a power storage device 30, a system interconnection device 40), and load devices (an LED lamp 50A, a cooler and/or a heater 51A, a radio 52A, a television 53A, a personal computer 54). The voltage of the direct-current bus 100A fluctuates within a prescribed range. The direct-current power sources output direct-current voltage to the direct-current bus. The load devices are connected to the direct-current bus 100A and have a control part that, in accordance with changes in the voltage of the direct-current bus 100A, generate prescribed changes while keeping power on. For example, the LED lamp 50A brightens when the voltage of the direct-current bus 100A increases and dims when the voltage decreases. For example, the temperature to which the cooler is set decreases when the voltage of the direct-current bus 100A increases and increases when the voltage decreases.

HANEDA MASAJI (JP)
MATSUNAGA YASUHIRO (JP)

PCT/JP2018/048193

July 11, 2019

December 27, 2018

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NTN TOYO BEARING CO LTD (JP)

H02J1/00; H02J1/14

JP2014531887A	2014-11-27
JP2016537940A	2016-12-01
JP2015061439A	2015-03-30
JPH089568A	1996-01-12
JPH09191565A	1997-07-22

KOJIMA Takiro (JP)

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