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Direct-current power supply system of transformer substation and power storage control method

A technology for power supply systems and substations, applied in the field of substations, can solve the problems of short battery life in substations, achieve the effects of improving life and avoiding floating charging

Inactive Publication Date: 2018-11-20
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a substation DC power supply system and a storage control method for the problem of short battery life in substations

Method used

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  • Direct-current power supply system of transformer substation and power storage control method
  • Direct-current power supply system of transformer substation and power storage control method
  • Direct-current power supply system of transformer substation and power storage control method

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Embodiment Construction

[0036] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0037] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "mounted", "one end", "the other end" and similar expressions are used herein for the purpose of description only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of or...

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PUM

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Abstract

The invention relates to a direct-current power supply system of a transformer substation. The direct-current power supply system comprises a rectifying module, a storage battery, a charging control module and a diode module; the input end of the rectifying module is used for being connected with an external alternating current power supply, and the first output end of the rectifying module is used for being connected with a load; one end of the charging control module is connected with the second output end of the rectifying module, and the other end of the charging control module is connected with the storage battery; the charging control module is used for controlling the rectifying module to charge the storage battery when then the electric parameter of the storage battery is lower than a first threshold value; the storage battery is connected with the positive electrode of the diode module; and the negative electrode of the diode module is used for being connected with a load. Thecharging control module is arranged, and when the electric parameter of the storage battery is lower than the first threshold value, the rectifying module is only allowed to charge the storage battery, and the storage battery is prevented from being in a floating charge state, so that the service life of the direct-current power supply system of the transformer substation is prolonged.

Description

technical field [0001] The invention relates to the technical field of substations, in particular to a substation DC power supply system and a power storage control method. Background technique [0002] Substation batteries are mostly composed of several battery cells connected in series. When the battery is in the floating charge state when used in series, due to the inconsistency of each battery cell, the floating charge voltage of each cell is different. The level will also have a considerable impact on the life of the battery. When the floating charging voltage is too high, the corrosion of the internal grid of the battery will intensify, and the side reaction of hydrogen evolution will occur in the internal electrolyte, which will cause the internal pressure of the battery to be high, and the exhaust valve will open, causing the battery to lose water, further aggravating the deterioration of the battery, and greatly shortening the service life of the battery. . When t...

Claims

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Application Information

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IPC IPC(8): H02J7/02H02J7/00H02J7/34
CPCH02J7/022H02J7/0068H02J7/34H02J2207/20H02J7/02H02J9/061
Inventor 赵浩标周哲丛培杰蔡蒂刘珊区伟明陈远军邹志良黄健源叶亮
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD