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Remote intelligent maintenance system for direct current power supply of transformer substation and application of remote intelligent maintenance system

A DC power supply and intelligent maintenance technology, applied in battery circuit devices, information technology support systems, collectors, etc., can solve problems such as not suitable for substation use, high cost of VMS and BMS

Inactive Publication Date: 2015-06-03
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the cost of VMS and BMS is relatively high, and they are not remote charging and discharging for the purpose of assessing capacity and restoring capacity, so they are not suitable for today's substations

Method used

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  • Remote intelligent maintenance system for direct current power supply of transformer substation and application of remote intelligent maintenance system
  • Remote intelligent maintenance system for direct current power supply of transformer substation and application of remote intelligent maintenance system
  • Remote intelligent maintenance system for direct current power supply of transformer substation and application of remote intelligent maintenance system

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Experimental program
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specific Embodiment approach

[0024] Specific implementation methods: the present application is not limited by the following examples, and the specific implementation manners can be determined according to the technical solutions of the application and actual conditions.

Embodiment

[0025] Example: such as figure 1 As shown, the remote intelligent maintenance system for substation DC power supply includes a DC power supply, the input terminal of the DC power supply is connected to the AC power distribution terminal, the output terminal of the DC power supply is connected to the DC power distribution terminal, and the DC power supply includes charging and discharging modules 1— n, the charging and discharging modules 1-n are respectively connected with the battery pack 1-n, and the battery pack 1-n is connected with the battery monitoring module 1-n, and the battery monitoring module includes a voltage monitoring module, a circuit monitoring module and an internal resistance testing module , the battery monitoring module is followed by a monitoring module, and the monitoring module is connected to the public switched telephone network PSTN through a modem and connected to the control terminal.

[0026] The function of the battery pack is mainly to provide ...

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Abstract

The invention relates to a remote intelligent maintenance system for a direct current power supply of a transformer substation. The remote intelligent maintenance system comprises the direct current power supply, wherein the input end of the direct current power supply is connected with an alternating current power distribution end; the output end of the direct current power supply is connected with a direct current power distribution end; the direct current power supply comprises charging and discharging modules 1-n; the charging and discharging modules 1-n are respectively connected with storage battery packs 1-n; the storage battery packs 1-n are connected with battery monitoring modules 1-n; the battery monitoring modules comprise voltage monitoring modules, circuit monitoring modules and internal resistance test modules; the battery monitoring modules are then connected with a monitoring module, and the monitoring module is connected with a control terminal. The control terminal performs remote communication with concentrated monitoring modules of all branch station direct current systems; after receiving a monitoring command sent by the control terminal, the monitoring modules of all the branch station direct current systems can complete data acquisition and control operation on direct current systems and send back results to the remote control terminal, so that unattended and real-time concentrated monitoring and remote maintenance of direct current equipment are realized.

Description

technical field [0001] The application relates to a remote intelligent maintenance system for substation direct current power supply and its application in direct current power supply monitoring and maintenance. Background technique [0002] In the power system, in order to provide power for control, protection, automatic devices, emergency lighting and various DC equipment, there must be a reliable DC power supply. Therefore, the power plant and the substation are equipped with independent DC power battery packs and matching charging and floating charging devices, referred to as DC power systems. Its function is to provide and gate DC power for the circuit breaker in the substation under normal conditions. In the event of failure, when the power supply of the factory and station is interrupted, it provides DC power for relay protection and automatic devices, circuit breakers and gates and trips, carrier communication, and factory machinery driven by DC motors in power plan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00H02J7/00
CPCY02E60/00Y04S10/16
Inventor 张勇陈瑞彭玉丰张小红
Owner STATE GRID CORP OF CHINA
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