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CN-224211038-U - Mobile energy storage device and capacity increasing system of power exchange station

CN224211038UCN 224211038 UCN224211038 UCN 224211038UCN-224211038-U

Abstract

The utility model provides a mobile energy storage device, which is characterized in that a plurality of battery holders are arranged on a mobile carrier to fix energy storage batteries, the energy storage batteries are electrically connected with energy storage converters in a grid-connected cabinet through a charging connector and a discharging connector, the grid-connected cabinet is connected with a power grid of a power exchange station through a power distribution cabinet, so that a charging circuit and a discharging circuit of the energy storage batteries are formed, and the capacity of a transformer of the power exchange station is increased by discharging the energy storage batteries.

Inventors

  • SHUAN ZHU
  • LIU XUBAO
  • HU MIMI
  • LV FENG
  • WANG SHOUKANG

Assignees

  • 上海融和智电新能源有限公司

Dates

Publication Date
20260508
Application Date
20250516

Claims (10)

  1. 1. A mobile energy storage device, comprising: A plurality of battery holders (11) are arranged on the mobile carrier (1), and each battery holder (11) is respectively provided with a battery fixing structure (111), a charging connector (112) and a discharging connector (113); the energy storage batteries (2) are respectively fixed on battery fixing structures (111) of the battery holders (11) and are respectively electrically connected with the corresponding charging connectors (112) and the discharging connectors (113); Each energy storage converter is electrically connected with one or more charging connectors (112) and one or more discharging connectors (113) respectively, so that the energy storage converters are electrically connected with corresponding energy storage batteries (2); The power distribution cabinets (4), and each grid-connected cabinet (3) is respectively connected into a power grid of the power exchange station through the power distribution cabinet (4); And the energy dispatching system is respectively in communication connection with the power grid of the power exchange station, each energy storage battery (2) and each energy storage converter.
  2. 2. The mobile energy storage device of claim 1, wherein the energy scheduling system comprises: The main control card is arranged in a grid-connected cabinet (3) and is in communication connection with each energy storage converter in the grid-connected cabinet (3); And the slave control cards are respectively arranged in other grid-connected cabinets (3) and are respectively in communication connection with the master control card and the energy storage converters in the corresponding grid-connected cabinets (3).
  3. 3. The mobile energy storage device of claim 1, further comprising: And the energy management system is in communication connection with the power grid of the power exchange station and is in communication connection with the energy scheduling system and used for monitoring the power grid of the power exchange station in real time.
  4. 4. The mobile energy storage device of claim 1, further comprising: And the battery management system is respectively in communication connection with each energy storage battery (2) and is in communication connection with the energy scheduling system and used for monitoring the electric quantity and the battery state of each energy storage battery (2) in real time.
  5. 5. The mobile energy storage device according to claim 1, characterized in that an insulation detector is further arranged in each grid-connected cabinet (3), and the insulation detector is used for conducting real-time insulation detection on each circuit in the grid-connected cabinet (3).
  6. 6. The mobile energy storage device according to claim 1, wherein each grid-connected cabinet (3) is further provided with an anti-backflow controller, and the anti-backflow controller is used for monitoring the power direction of grid-connected points in the grid-connected cabinets (3) in real time, and cutting off grid-connected switches or adjusting the output of the inverter when reverse power is monitored.
  7. 7. The mobile energy storage device according to claim 1, characterized in that a gas source battery lock (114) is provided on each battery fixing structure (111), which gas source battery lock (114) locks the fixed energy storage battery (2) when opened.
  8. 8. The mobile energy storage device according to claim 1, characterized in that the mobile carrier (1) is provided with a 24V power supply, the 24V power supply is electrically connected with each energy storage battery and is provided with a power supplementing interface.
  9. 9. A power exchange station capacity enhancing system, comprising: The power exchange station comprises a transformer; A mobile energy storage device as claimed in any one of claims 1 to 8 for compatibilizing the transformer.
  10. 10. The power plant compatibilization system according to claim 9, characterized by comprising: The power exchange station comprises a 220V power supply, wherein the 220V power supply is connected to a mobile energy storage device power grid through a power exchange station power grid, and is electrically connected with the grid-connected cabinet (3) through energy storage batteries (2).

Description

Mobile energy storage device and capacity increasing system of power exchange station Technical Field The utility model relates to the technical field of mobile energy storage, in particular to a mobile energy storage device and a capacity increasing system of a power exchange station. Background The power exchange station is a facility for providing quick battery replacement service for the electric automobile, and the energy supplementing time is greatly shortened by means of centralized charging and unified battery distribution. The battery storage energy of the battery is divided into four stages by the battery replacement station, and the charging capacity of each stage of charging station is fixed. However, at present, the high-power and high-current charging demands of the power exchange station are increasing, and the power exchange station with fixed charging capacity cannot meet the charging power upgrading demands. In addition, the existing energy storage system is usually arranged at a fixed position, so that cross-region emergency power supply cannot be realized, energy scheduling with the power exchange station cannot be realized, and timely capacity expansion of the power exchange station cannot be effectively supported. Disclosure of utility model In view of the above-mentioned drawbacks of the prior art, an objective of the present utility model is to provide a mobile energy storage device and a capacity-increasing system of a power exchange station, which are used for solving the technical problem that the existing energy storage system cannot support the energy scheduling of the power exchange station due to the fixed arrangement. To achieve the above and other related objects, a first aspect of the present utility model provides a mobile energy storage device, which includes a mobile carrier on which a plurality of battery holders are disposed, each battery holder is provided with a battery fixing structure, a charging connector and a discharging connector, a plurality of energy storage batteries are respectively fixed to the battery fixing structure of each battery holder and are respectively electrically connected with the corresponding charging connector and discharging connector, one or more grid-connected cabinets in which one or more energy storage converters are disposed, each energy storage converter is respectively electrically connected with one or more charging connectors and one or more discharging connectors, so as to be electrically connected with the corresponding energy storage battery, a power distribution cabinet through which each grid-connected cabinet is respectively connected to a power grid of a power conversion station, and an energy scheduling system which is respectively communicatively connected with the power grid, each energy storage battery and each energy storage converter. In some embodiments of the first aspect of the present utility model, the energy scheduling system includes a master control card, where the master control card is disposed in a grid-connected cabinet and is in communication connection with each energy storage converter in the grid-connected cabinet, and one or more slave control cards, where each slave control card is disposed in each other grid-connected cabinet and is in communication connection with the master control card and each energy storage converter in the corresponding grid-connected cabinet. In some embodiments of the first aspect of the present utility model, the mobile energy storage device further comprises an energy management system communicatively coupled to the power grid of the power plant and to the energy scheduling system for monitoring the power grid of the power plant in real time. In some embodiments of the first aspect of the present utility model, the mobile energy storage device further includes a battery management system, where the battery management system is respectively in communication with each energy storage battery and is in communication with the energy scheduling system, and is configured to monitor the electric quantity and the battery status of each energy storage battery in real time. In some embodiments of the first aspect of the present utility model, an insulation detector is further provided in each grid-connected cabinet, where the insulation detector is used for performing real-time insulation detection on each circuit in the grid-connected cabinet. In some embodiments of the first aspect of the present utility model, an anti-backflow controller is further disposed in each grid-connected cabinet, and the anti-backflow controller is configured to monitor a power direction of a grid-connected point in the grid-connected cabinet in real time, and cut off a grid-connected switch or adjust an output of the inverter when reverse power is monitored. In some embodiments of the first aspect of the present utility model, a gas source battery lock is provided on each battery securing structure, whic