Title:
ON-GRID/OFF-GRID SCHEDULING METHOD AND APPARATUS, AND ENERGY-STORAGE POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/142452
Kind Code:
A1
Abstract:
Disclosed in the present invention are an on-grid/off-grid scheduling method and apparatus, and an energy-storage power supply system. The method is applied to an energy-storage power supply system. The energy-storage power supply system comprises an energy storage device; the energy storage device is connected to a direct current bus; one end of the direct current bus is connected to a power grid by means of an AC-DC module, and the other end is connected to a load. The method comprises: after the energy storage device enters an off-grid operation mode, controlling an output voltage of the energy storage device to decrease once every first preset duration; and every time the output voltage of the energy storage device is controlled to decrease, obtaining an input voltage change situation of the load, and determining, according to the input voltage change situation of the load, whether to control the energy storage device to switch to an on-grid operation mode.
Inventors:
LI WEIJIN (CN)
ZENG YUNHONG (CN)
ZENG YUNHONG (CN)
Application Number:
PCT/CN2021/117139
Publication Date:
July 07, 2022
Filing Date:
September 08, 2021
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02J3/32; H02J3/38
Foreign References:
| CN112821435A | 2021-05-18 | |||
| CN211063355U | 2020-07-21 | |||
| CN108521140A | 2018-09-11 | |||
| CN103023132A | 2013-04-03 |
Other References:
See also references of EP 4164080A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
Download PDF:
Previous Patent: PARKING BRAKE CYLINDER AND BRAKE CLAMP UNIT
Next Patent: WATER-AIR AMPHIBIOUS THREE-DIMENSIONAL SEARCH AND RESCUE SYSTEM AND METHOD
Next Patent: WATER-AIR AMPHIBIOUS THREE-DIMENSIONAL SEARCH AND RESCUE SYSTEM AND METHOD