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Development status of emergency backup power supply

Categories:emergency backup power supply
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Time of issue:2021-07-09 16:36
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(Summary description)This article introduces the development status of emergency backup power supply

china emergency backup power supply

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Development status of emergency backup power supply

(Summary description)This article introduces the development status of emergency backup power supply

Categories:emergency backup power supply
Author:
Origin:
Time of issue:2021-07-09 16:36
Views:

Information

The market of emergency backup power supply for diesel engine power generation is large. Due to its large capacity and long continuous power supply time, it has become the most common emergency power supply. However, it takes about five minutes for diesel generator to start from power failure to receiving start signal until the voltage and frequency of generator are stable, and even it takes 15 seconds for diesel generator to start quickly, Therefore, the diesel generator can not achieve uninterrupted power supply.

With the development of science and technology, the emergency backup power supply with lead-acid battery as energy storage has been developed continuously. However, with the increase of actual use, the disadvantages of low energy density, large volume and weight, and harmful to the environment of lead-acid battery are gradually exposed.

The emergency backup power supply, represented by flywheel energy storage, is not widely used at present. On the one hand, it is due to high investment cost, on the other hand, it has short emergency power supply time.

With the continuous development of battery technology, lithium batteries with small volume, light weight, long cycle times, high energy density and high current fast charging and discharging are rising rapidly. Energy backup power supply selecting lithium batteries for energy storage may be the inevitable requirement of future development.

In the research of topology structure of emergency backup power supply, some scholars provide three kinds of topology structure: Series topology, parallel topology and double circuit topology according to the actual application of emergency backup power supply. Compared with partial topology structure, series topology has the advantage of transforming and rectifying the poor power quality, The output power has higher stability and quality, and the load side converter can ensure better power output compared with other structures without control strategy switching.

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