Title:
POWER SUPPLY CONNECTION DEVICE, AND CHARGING-DISCHARGING CONTROL METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2017/198172
Kind Code:
A1
Abstract:
Provided in the present invention is a power supply connection device, used to connect to a power generation unit and an energy storage unit, and supply power to a load. The power supply connection device comprises a current regulator, a DC converter, a dump load, an inverter, and a controller. The current regulator is used to regulate an input from the power generation unit. The DC converter is used to step up the voltage of an input from the energy storage unit, an input from the power generation unit, or the regulated input of the power generation unit. The dump load is used to release excessive energy. The inverter is used to perform DC to AC conversion. The power supply connection device further comprises a charging-discharging control device used to control the energy storage unit to charge or discharge. The controller controls the charging-discharging control device. Also provided in the present invention is a charging-discharging control method for a power supply connection device. By modifying a connection mode of an energy storage unit, the power supply connection device provided in the present invention reduces the number of times of charging and discharging the energy storage unit, thus increasing the service life of the energy storage unit, decreasing an operating cost of a micro-grid system comprising the power supply connection device, and ensuring stable and reliable power supply of the micro-grid system.
Inventors:
LIU JIALE (CN)
XU JUN (CN)
ZHU CHANGDONG (CN)
HE HAIBIN (CN)
XU JUN (CN)
ZHU CHANGDONG (CN)
HE HAIBIN (CN)
Application Number:
PCT/CN2017/084722
Publication Date:
November 23, 2017
Filing Date:
May 17, 2017
Export Citation:
Assignee:
SHANGHAI ELECTRIC DISTRIBUTED ENERGY TECH CO LTD (CN)
International Classes:
H02J4/00
Foreign References:
| CN104269914A | 2015-01-07 | |||
| CN102088198A | 2011-06-08 | |||
| CN106026202A | 2016-10-12 | |||
| CN205622244U | 2016-10-05 | |||
| JP2000217273A | 2000-08-04 |
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
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