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Lead-acid storage battery monitoring system

A lead-acid battery and monitoring system technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of huge operation and maintenance workload, the inability to estimate the health status of the battery, and the inability to detect health problems in time. Reduce the workload of operation and maintenance, improve automation, and achieve reasonable structure distribution

Active Publication Date: 2015-04-01
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology

[0003] At present, the online monitoring of lead-acid batteries in substations is only for data such as the total pressure and temperature of lead-acid batteries, and these data cannot be used as the basis for estimating the health status of batteries
The operation and maintenance personnel mainly estimate the health status of the lead-acid battery by regularly checking the discharge of the lead-acid battery and manually testing the internal resistance of the battery. Batteries with health problems cannot achieve online monitoring and estimation

Method used

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Embodiment 1

[0012] Embodiment 1 provides a lead-acid battery monitoring system, which can realize online monitoring of the lead-acid battery and calculate the health status of the lead-acid battery in real time. Among them, for the battery, the health status refers to the performance status of the battery, that is, the percentage of the full charge capacity of the battery relative to the rated capacity. The health status of a new battery is 100%, and if the battery is completely scrapped, its health status is 0%. .

[0013] Such as figure 1 As shown, in the first embodiment, the lead-acid battery monitoring system includes a battery monitoring device 1 and an industrial computer 2. The lead-acid battery pack is composed of a plurality of lead-acid batteries, and the battery monitoring device 1 is used to monitor the lead-acid battery. A state parameter, the state parameter is used to characterize the health state of the lead-acid battery, specifically may include parameters such as volta...

Embodiment 2

[0016] Such as figure 2 As shown, in the second embodiment, the lead-acid battery monitoring system includes a battery monitoring device and an industrial computer, wherein the battery monitoring device adopts a distributed architecture, including a battery detection module BMU, a current test module BIU and a main control module BCU; The battery detection module BMU and the main control module BCU are connected to each other through a communication port, and the current test module BIU and the main control module BCU are also connected to each other through a communication port.

[0017] In this embodiment two, the battery detection module BMU is used to measure the real-time data of the monomer information of the lead-acid battery in the lead-acid battery pack, and the monomer information includes voltage, temperature, internal resistance (including DC internal resistance and AC internal resistance) Resistance) and other parameters. Since there are multiple lead-acid batte...

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Abstract

The invention discloses a lead-acid storage battery monitoring system which comprises a battery monitoring device and an industrial personal computer, wherein the battery monitoring system is used for monitoring a state parameter representing the health state of a lead-acid storage battery and sending real-time data of the state parameter to the industrial personal computer; the industrial personal computer is used for carrying out fitting analysis according to history data of the state parameter and the health state of the corresponding lead-acid storage battery, establishing a health life model of the lead-acid storage battery and computing the health state of the lead-acid storage battery through the health life model according to the real-time data of the state parameter. According to the lead-acid storage battery monitoring system, the health life model is established on the basis of the history data of the lead-acid storage battery and the health state of the lead-acid storage battery under different working conditions can be monitored. The lead-acid storage battery monitoring system is capable of decreasing the operation and maintenance workload and enhancing the automation and intelligence degree of substations.

Description

【Technical field】 [0001] The invention relates to the technical field of lead-acid batteries used in substations, in particular to a monitoring system for lead-acid batteries. 【Background technique】 [0002] The lead-acid battery monitoring system in the substation is a device for real-time estimation of the health status of the batteries in the lead-acid battery pack. [0003] At present, the online monitoring of lead-acid batteries in substations is only for data such as the total pressure and temperature of lead-acid batteries, and these data cannot be used as the basis for estimating the health status of batteries. The operation and maintenance personnel mainly estimate the health status of the lead-acid battery by regularly checking the discharge of the lead-acid battery and manually testing the internal resistance of the battery. Batteries with health problems cannot achieve online monitoring and estimation. 【Content of invention】 [0004] Based on this, the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
Inventor 钟国彬刘新天魏增福刘世念苏伟何耀曾国建
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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