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Intelligent parallel direct-current power supply management system

A technology of DC power supply system and management system, which is applied in the direction of DC network circuit device, load balance in DC network, charging/discharging current/voltage regulation, etc. It can solve problems such as difficult control, affecting output, and affecting the performance of the whole group. Reach the effect of reducing charging time and realizing efficiency

Active Publication Date: 2021-09-21
郑州易能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many problems in the series battery pack, including the deterioration of a single cell that affects the performance of the whole pack, the difficulty of online full-capacity verification of the battery pack, and the inability to mix batteries of different brands. If there is a large difference, overcharging or overdischarging will inevitably occur, and the battery life will be shortened rapidly. Therefore, it is necessary to keep the performance parameters of the individual batteries strictly consistent.
However, it is difficult to achieve this consistency even for different batches of batteries of the same brand, and the individual differences of batteries will inevitably expand during operation, which is difficult to control artificially
Thus causing individual problems to affect the overall output

Method used

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] Please refer to figure 1 , figure 2 , an intelligent parallel DC power supply management system provided by an embodiment of the present invention is applied to a parallel DC power supply system, and the parallel DC power supply system includes an AC incoming line switching circuit, a parallel power supply component, a DC bus, a DC / DC conversion module, Overload freewheeling circuit, DC circuit breaker and feeder circuit;

[0034] The ma...

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Abstract

The invention discloses an intelligent parallel direct-current power supply management system which is applied to a parallel direct-current power supply system. The parallel direct-current power supply system comprises an alternating-current incoming line switching circuit, a parallel power supply assembly, a direct-current bus, a DC / DC conversion module, an overload follow current circuit, a direct-current circuit breaker and a feeder loop. The management system comprises an alternating current monitoring module, a parallel power supply conversion module, a direct current acquisition module, a feeder line detection module and a main monitoring module. The beneficial effects of the invention are that the parallel direct-current power supply system is constructed by changing the connection mode between the storage batteries and utilizing the arranged parallel power supply conversion module, thereby the problems in the prior art that the performance output of the whole group is affected by the degradation of a single battery, the full-capacity checking of the storage battery pack is difficult to carry out online, and the like are avoided; meanwhile, intelligent system management can be achieved, the charging time corresponding to a part of tedious operation needed by operators can be shortened, and then efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of DC power supply systems, in particular to an intelligent parallel DC power supply management system. Background technique [0002] In the DC operating power system of the substation, the battery packs of the existing DC power system are connected in series. There are many problems in the series battery pack, including the deterioration of a single cell that affects the performance of the whole pack, the difficulty of online full-capacity verification of the battery pack, and the inability to mix batteries of different brands. If there is a large difference, overcharging or overdischarging will inevitably occur, and the battery life will be shortened rapidly. Therefore, it is necessary to keep the performance parameters of the individual batteries strictly consistent. However, it is difficult to achieve this consistency even for different batches of batteries of the same brand, and the individual differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/14H02J13/00H02J7/00
CPCH02J1/102H02J1/14H02J13/00016H02J7/00047H02J7/00036H02J7/007
Inventor 唐德陈风新郝利强刘艳飞
Owner 郑州易能科技有限公司
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