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Battery energy storage device and method used for balancing power grid loads

A technology of grid load and battery energy storage, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problem that pure grid charging power cannot be supplied for a long time, and achieve the effect of optimizing work performance

Inactive Publication Date: 2014-12-03
IEPOWERS TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the present invention provides a battery energy storage device. According to the electricity price gradient, the electric energy when the electricity price is low is stored, and the electricity is supplied when the electricity price is high. At the same time, the green energy of the sun is introduced into the storage. The energy device solves the problem that the charging power of the pure grid cannot be supplied for a long time, and uses the organic combination of the grid and solar energy to charge the battery cabinet when the electricity price is low, optimizing the working performance of the battery energy storage device

Method used

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  • Battery energy storage device and method used for balancing power grid loads
  • Battery energy storage device and method used for balancing power grid loads

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Embodiment 1

[0025] like figure 1 As shown, a battery energy storage device for balancing grid loads includes a battery cabinet 10, an integrated controller 20, a solar module 30, and a battery life extender 40. The integrated controller 20 includes a charger 21, an inverter The charger 22, the control device 23, the charger 21 charges the battery cabinet 10 with the electric energy of the grid 50, and the inverter 22 converts the direct current of the battery cabinet 10 into an alternating current and supplies it to the electric screen 60 for power supply, or serves as an uninterruptible power supply A power supply provides electrical energy to other devices. The battery life extender 40 compensates the battery pack cabinet 10 to increase the service life of the battery pack cabinet 10 .

[0026] The control device 23 controls the charging and discharging mode of the battery pack cabinet 10 according to the electricity price. When the electricity price is low, the charger is controlled t...

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Abstract

The invention discloses a battery energy storage device and method used for balancing power grid loads. The battery energy storage device comprises a battery pack cabinet, an integrated controlling machine and a solar module, wherein the integrated controlling machine comprises a controlling device, a charger and an inverter. The charger charges the battery pack cabinet through electric energy of a power grid , the inverter enables direct currents of the battery pack cabinet to be converted into alternating currents to be supplied to a power-supply power screen, the controlling device controls charging and discharging modes of the battery pack cabinet according to the electricity price, and the controlling device monitors the energy stored in the battery pack cabinet and controls the power supply mode according to the energy stored in the battery pack cabinet. According to the method used for balancing the power grid loads, the power grid which is in the low-electricity-price state and solar energy are organically combined to charge the battery pack cabinet, and therefore the working performance of a battery energy storage device is optimized.

Description

technical field [0001] The present invention relates to an energy storage device and method in a grid system, and more particularly to a battery energy storage device and method for balancing grid loads. Background technique [0002] The load of the power grid at different times of the day is very unbalanced. The power consumption during the peak hours of the day is high, and the power consumption during the valley hours at night is relatively low, and the electricity price also produces gradients according to different time periods. It can not only reduce the load on the power grid during the peak period, but also bring considerable economic benefits. When the power supply equipment requires a large amount of power, the electric energy stored during the off-peak period cannot fully supply the demand during the peak period, which brings certain limitations to the use of battery energy storage devices. Contents of the invention [0003] In order to solve the deficiencies i...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J7/00H02J7/02H02J7/35
CPCH02J3/32H02J7/00Y02E70/30
Inventor 蔡文生黎文椿
Owner IEPOWERS TIANJIN