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battery energy storage system

A technology of battery energy storage system and storage battery, which is applied in the direction of control/regulation system, electrical components, and adjustment of electric variables, etc., which can solve problems such as system protection and setting influence, and achieve increased floor space, cost savings, and extended cable length Effect

Active Publication Date: 2022-04-12
ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when a short-circuit fault occurs in the feeder between poles in the system, the voltage across the port capacitor of the battery energy storage system converter device will drop to an extremely low value instantaneously, and the capacitor will quickly discharge to generate a large discharge current, thereby protecting the entire system. , setting, etc. have a serious impact on

Method used

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Embodiment Construction

[0035] In order to facilitate the understanding of the present invention, the following will describe the present invention more fully. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0036] It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first cable could be termed a second cable, and, similarly, a second cable could be termed a first cable, without departing from the scope of the present application. Both the first cable and the second cable are cables, but they are not the same cable.

[0037] Unless otherwise defi...

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Abstract

The invention relates to a battery energy storage system, comprising a DC power distribution cabinet, a DC metering cabinet, a converter device, a battery cabinet and a combiner box; the DC power distribution cabinet and the DC metering cabinet are arranged in a DC power distribution room, The inverter device is arranged at the installation place of the battery cabinet and the combiner box. In the present invention, by adjusting the arrangement position of the converter device, placing it at the installation place of the battery cabinet and the combiner box, increasing the distance between the converter device and the DC metering cabinet, and further prolonging the distance between the converter device and the DC metering cabinet The length of the cable can reduce the amplitude and rate of rise of the short-circuit current of the system, and can achieve the effect similar to that of a series current-limiting reactor. The design is simple, no need to increase equipment, and avoid further increasing the footprint of the battery energy storage system. save costs.

Description

technical field [0001] The invention relates to the technical field of new energy power generation, in particular to a battery energy storage system. Background technique [0002] As the shortage of fossil energy becomes more and more prominent, new energy power generation technology has been paid more and more attention. Among them, battery energy storage technology, as a renewable DC power supply technology, has developed rapidly. The battery energy storage system is a power generation system that uses the electric energy storage function of the battery to store the electric energy of the grid in the form of chemical energy and is electrically connected to the public grid. The connection between the battery energy storage system and the public grid can be in the form of AC or DC. Among them, the use of DC to connect to the DC distribution network has higher energy efficiency, so the use of DC has attracted more and more attention. [0003] Due to the fact that the DC pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J1/10H02J1/14H02M1/32H02B1/24H02M3/155
CPCH02J1/10H02J1/14H02M1/32H02B1/24H02M3/155
Inventor 刘尧杨昆郭芳谭喆施世鸿刘仁亮赵攀陈勇苏泽仁刘超
Owner ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO
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