Fire pre-judging and extinguishing system and method for storage battery pack of direct current power system

A technology of DC power supply system and storage battery pack, which is applied in fire rescue and fire alarms relying on the action of smoke/gas, etc. It can solve the problem of substations being destroyed once, there is no integrated solution for fire prevention and management, and damage to other equipment and other problems, to achieve the effect of reducing the probability of fire, reducing losses, and accurate detection results

Inactive Publication Date: 2020-03-17
STATE GRID HEBEI ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, since it is in the same room as the protection, monitoring and other devices, once the battery catches fire, it will inevitably affect other equipment, and the entire substation will be destroyed once it is burned.
However, the existing technology only has conventional monitoring methods such as voltage and internal resistance for batteries, and there is no professional and complete integrated solution for fire prevention and control

Method used

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  • Fire pre-judging and extinguishing system and method for storage battery pack of direct current power system
  • Fire pre-judging and extinguishing system and method for storage battery pack of direct current power system
  • Fire pre-judging and extinguishing system and method for storage battery pack of direct current power system

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Embodiment 1

[0048] Based on the above design ideas, in one of the specific limited solutions of the present invention, the battery fire prediction and fire extinguishing system (such as figure 1 shown) is divided into three layers from top to bottom: remote monitoring layer, network communication layer, and station-side equipment layer. The station-side equipment layer is installed at the substation side, and is used to collect battery pack voltage, single voltage, internal resistance, temperature, charge and discharge current, fuse (or circuit breaker) and combustible gas smoke alarm and other operating status information, and communicate through the network The layer transmits the information to the data center server, and then distributes it to each remote monitoring terminal, which can remotely browse the battery information of each substation, and perform remote control such as fire linkage and other remote control of any substation battery pack according to their respective permissio...

Embodiment 2

[0076] This embodiment relates to a method for predicting and extinguishing a battery fire in a DC power supply system, such as Figure 5 shown, which includes the following steps

[0077] Step 1. The local monitoring device at each substation connects the station-side battery balance acquisition module, battery temperature detection module, switch module, light-sensing smog and combustible gas monitoring unit through the RS485 bus, and collects various operating states of the battery. information. Various displayed operating status information includes battery pack voltage, cell voltage, internal resistance, temperature, charge and discharge current, fuse (or circuit breaker) and combustible gas smoke alarm, etc.

[0078] Step 2. Collect the various operating state information collected in step 1, and transmit the various operating state information to the data center server through the network communication layer composed of an optical fiber ring network and a serial port s...

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Abstract

The invention provides a fire pre-judging and extinguishing system for a storage battery pack of a direct current power system. The system comprises a remote monitoring layer, a network communicatinglayer and a station end equipment layer. The invention provides a fire pre-judging and extinguishing method for the storage battery pack of the direct current power system at the same time. The station end equipment layer collects operation state information of the storage battery pack. By means of the network communicating layer, the information is transferred to a data center server, and then distributed to all remote monitoring terminals of the remote monitoring layer. According to the system, by collecting the operation state information of storage battery pack voltage, single-body voltage, inner resistance, temperature, charging and discharging current and the like of the storage battery pack, working state information of an outlet fuse or breaker of the storage battery pack, workingstate information of a charger, combustible gas smoke alarm information and the like are monitored online, the integrated comprehensive fire pre-judging and extinguishing system is put up, by the adoption of multiple monitoring measures, monitoring is accurate and in time, the loss caused by fires can be reduced to the largest extent, and safe and stable operation of the direct current power system is guaranteed.

Description

technical field [0001] The invention relates to the technical field of battery monitoring in a DC power supply system, in particular to a fire prediction and fire extinguishing system for a battery pack in a DC power supply system; meanwhile, the invention also relates to a fire prediction and fire extinguishing method for a battery pack in a DC power supply system. Background technique [0002] The DC power supply system is an important part of the power supply system of power plants and substations. It provides reliable power for secondary systems and equipment in power plants and stations such as relay control protection devices, automatic control devices, circuit breaker opening and closing mechanisms, metering, communications, and emergency lighting. Power supply. The power supply of the DC power supply system is mainly composed of two parts, the rectifier charging device and the battery pack. Under normal circumstances, the DC power supply system is powered by the AC p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C3/16A62C37/40G08B17/10
CPCA62C3/16A62C37/40G08B17/10
Inventor 杜旭浩李秉宇杨鹏马建辉何瑞东刘振李青松刘婷
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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