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Energy storage system for preferential improvement of electric energy quality

An energy storage system and power quality technology, applied in the field of energy storage systems, can solve problems such as the inability to achieve seamless switching, and achieve the effect of ensuring normal power supply and achieving seamless switching.

Inactive Publication Date: 2017-12-22
ZHEJIANG NARADA POWER SOURCE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing energy storage systems mainly use a single-function energy storage converter, which can be connected to a higher voltage level through a step-up transformer, and can only choose one of the two modes between the grid-connected mode and the off-grid mode It is impossible to seamlessly switch between running and off-grid

Method used

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  • Energy storage system for preferential improvement of electric energy quality
  • Energy storage system for preferential improvement of electric energy quality
  • Energy storage system for preferential improvement of electric energy quality

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1 provides an energy storage system prior to improving the power quality. The energy router 200 is connected between the grid 01 and the load 02, and adopts the flexible switch technology. When the voltage of the grid 01 is abnormal, the energy router 200 can use the soft switch technology to In an instant response, the electric energy is obtained from the energy storage medium 100 to supply power to the load 02, so as to ensure the normal power supply of sensitive loads and realize seamless switching.

[0034] Furthermore, the energy storage system provided by Embodiment 1 prior to improving power quality can also greatly reduce the user's electricity cost by cutting peaks and filling valleys according to the user's settings. The specific operation process is as follows:

[0035] During the preset valley electricity price time period, the energy router 200 conducts the power supply between the grid 01 and the load 02, and the energy router 200 obtains electri...

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Abstract

The invention discloses an energy storage system for preferential improvement of electric energy quality, and the system comprises an energy storage medium and an energy router. The energy storage medium is used for storing electric energy. The energy router is disposed between a power grid and a load, and is connected with the power grid and the load. The energy router employs the soft-switching technology, cuts off the power supply between the power grid and the load when the voltage of the power grid has an abnormality, obtains electric energy from the energy storage medium, and supplies power to the load. According to the invention, the energy router is connected between the power grid and the load, and employs the soft-switching technology. When the voltage of the power grid has an abnormality, the energy router can make an instant response through the soft-switching technology, obtains the electric energy from the energy storage medium and supplies power to the load, so as to guarantee the normal power supply of a sensitive load. The system achieves the seamless switching.

Description

technical field [0001] The invention relates to the technical field of electric energy storage, in particular to an energy storage system prior to improving the quality of electric energy. Background technique [0002] Existing energy storage systems mainly use a single-function energy storage converter, which can be connected to a higher voltage level through a step-up transformer, and can only choose one of the two modes between the grid-connected mode and the off-grid mode It is impossible to seamlessly switch between running and off-grid. Contents of the invention [0003] Based on this, the present invention proposes an energy storage system prior to improving power quality, using an energy router to realize seamless switching between grid-connected mode and off-grid mode. [0004] An energy storage system prior to improving power quality provided by the present invention includes an energy storage medium and an energy router; [0005] The energy storage medium is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28H02J3/32H02J3/38
CPCH02J3/28H02J3/32H02J3/38H02J3/383Y02E10/56Y02E70/30
Inventor 吴贤章谭建国王大为柏延鸿
Owner ZHEJIANG NARADA POWER SOURCE CO LTD
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