CN201583631U - Online-detecting device and system of storage battery - Google Patents

Online-detecting device and system of storage battery Download PDF

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Publication number
CN201583631U
CN201583631U CN2009200299380U CN200920029938U CN201583631U CN 201583631 U CN201583631 U CN 201583631U CN 2009200299380 U CN2009200299380 U CN 2009200299380U CN 200920029938 U CN200920029938 U CN 200920029938U CN 201583631 U CN201583631 U CN 201583631U
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CN
China
Prior art keywords
accumulator
data
circuit
unit
cpu
Prior art date
Application number
CN2009200299380U
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Chinese (zh)
Inventor
刘国永
张万征
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淄博智洋电气有限公司
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Priority to CN2009200299380U priority Critical patent/CN201583631U/en
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Publication of CN201583631U publication Critical patent/CN201583631U/en

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Abstract

The utility model relates to an online-detecting device and a system of a storage battery, which is characterized by comprising a communication unit, a plurality of voltage acquisition units, a load unit, and a temperature collection unit which are connected together by RS485 buses. The device and the system realize automatic online-measurement on the internal resistance of the storage battery or remote manual startup measurement on the internal resistance of the storage battery, and find out the lagging storage battery by analyzing the internal resistance, thus improving the reliable running capacity of the storage battery, improving the maintenance efficiency, reducing the maintenance cost and labor intensity, and leading to the gradual transition from 'periodic repair' to 'state repair'.

Description

A kind of accumulator on-Line Monitor Device and system

Technical field

The utility model relates to a kind of long-distance monitorng device, specifically is a kind of accumulator on-Line Monitor Device and on-line monitoring system.

Background technology

Accumulator power supply is in support being brought into play important effect in industries such as current telecommunications, electric power, bank, postal services, but most of user still rests on the manual measurement the maintenance of accumulator.Particularly the valve-controlled type maintenance-free sealed lead acid storage battery because its sealing does not need to add water and safeguards in operational process, just is widely used in all trades and professions, but has also caused user's misunderstanding, and thinking non-maintaining is exactly not need to safeguard.Facts have proved that the thought of safeguarding of mistake can cause occurring after the AC interruptions generation of accident of power supply.Bitter lesson prompting user strengthens the line service of accumulator, such as the monomer voltage of regularly measuring accumulator, by can find the battery of performance degradation to the analysis of single battery voltage.Accumulator can only on-line operation, and can not safeguard by off-line but in most cases.For example the accumulator used of transformer station operating power is in support being undertaken the vital task that power supply is provided for transforming plant DC equipment, does not allow off-line operation.At this moment the voltage of Ce Lianging is actual is the float charge voltage of accumulator, and can not truly reflect the health status of accumulator, does not reach the purpose of early warning accumulator failure.

Monitoring accumulator property best bet is to do the property checked discharge, promptly uses the 0.1C electric current to battery discharging, monitors the variation of monomer voltage simultaneously, do not arrive in discharge time, and the battery that reaches discharge cut-off voltage at first is the battery of performance degradation.Waste time and energy but do the property checked discharge, can't do the discharge of the full capacity property checked in some cases, can only do the discharge of 50% capacity as the accumulator of transformer station's on-line operation; And the property checked discharge cycle is longer, does once in general 1 year.

In view of above situation, some battery service instrument have appearred on the market, judge changes of properties by the internal resistance of monitoring accumulator.The appearance of internal resistance test device table preferably resolves the maintenance issues of accumulator, but still exists each test all to need rewiring, contact resistance to the bigger problem of test result influence.

Summary of the invention

Accumulator on-Line Monitor Device of the present utility model proposes under such background, and the purpose of design is: the monomer internal resistance of on-line monitoring accumulator, the monitoring of long-range realization internal resistance, the performance degradation of the variation early warning accumulator by internal resistance.Get final product on-line operation after the device installation,, and eliminated because the measuring error that loose contact causes to not influence of original system operation.

This device realizes that on-line automatic measurement accumulator internal resistance or remote handle start the measurement accumulator internal resistance, find out lagging batteries by analysis to internal resistance, thereby improve the reliability service ability of accumulator, improve maintenance efficiency, reduce maintenance cost and labour intensity, make to carry out the transition to " repair based on condition of component " gradually from " prophylactic repair ".

The utility model has also proposed a kind of accumulator on-line monitoring system, and system comprises three parts, the one, Surveillance center, the 2nd, transmission network, the 3rd, field apparatus.Supervising device of the present utility model is in the third part of system, i.e. field apparatus.Surveillance center is provided with data server, preposition workstation, browsing terminal, network and short message server etc., the main data of being responsible for receiving each control point, and realize the functions such as storage, analysis, judgement, alarm of data, the working condition of reminding related work personnel accumulator in a different manner.Transmission network adopts LAN (Local Area Network) in the system, mainly finishes the transfer function of data.The accumulator on-Line Monitor Device is installed in the transformer station, in order to the monomer voltage, monomer internal resistance of monitoring accumulator, group pressure, electric current, environment temperature, battery temp etc.

The following technical scheme of the concrete employing of the utility model:

A kind of accumulator on-Line Monitor Device is characterized in that, described device comprises that one of communication unit, voltage acquisition unit are some, one of load unit, one of temperature collecting cell, adopts the RS485 bus to connect between each unit; Described voltage acquisition unit is responsible for gathering the continuous cell voltage of some sequence number, and accepts the scheduling of communication unit when internal resistance measurement, measures the sparking voltage and the recovery voltage of accumulator; Described load unit is responsible for providing discharge load when internal resistance is tested, and measures discharge current; Described temperature collecting cell temperature collecting cell is responsible for gathering the temperature of each batteries, and data are sent to communication unit; Communication unit is collected the data of each unit, calculates the internal resistance of accumulator according to R=Δ V/I, and wherein, R is an accumulator internal resistance, and Δ V is the difference of accumulator recovery voltage and sparking voltage, the discharge current that I provides for load unit.

Described communication unit is communicated by letter with host computer and is adopted ICP/IP protocol transmission data.

Described voltage acquisition unit comprises signal conditioning circuit, A/D circuit, cpu circuit and telecommunication circuit, the monomer voltage p-wire of accumulator is directly received the input end of signal conditioning circuit, handle through modulate circuit, signal is input to the A/D circuit, finish the conversion of analog quantity to digital quantity, then, the data by CPU reads measurement send to communication unit by telecommunication circuit.

Described load unit comprises electronic load, CPU and control circuit, telecommunication circuit and relay output contact, accumulator is according to equipartition principle, segmentation inserts load unit, and the break-make of CPU and control circuit pilot relay is so that one section access electronic load wherein carries out discharge measuring.

Described temperature collecting cell comprises telecommunication circuit, CPU and control circuit, measurement bus control circuit, measures bus, temperature sensor, CPU and control circuit control survey bus, start-up temperature is measured, and read the data of measurement, CPU is successively from #1 sensor, #2 sensor, #3 sensor, up to the #n sensor, after data are read, the temperature data of measuring is sent to communication unit by telecommunication circuit.

A kind of accumulator on-line monitoring system that adopts accumulator on-Line Monitor Device of the present utility model, this system comprises three parts, the one, Surveillance center, the 2nd, transmission network, the 3rd, field apparatus, described accumulator on-Line Monitor Device is in the third part of system, it is field apparatus, Surveillance center is provided with data server, preposition workstation, browsing terminal, the network and short message server, the main data of being responsible for receiving each control point, and the storage of realization data, analyze, judge, functions such as alarm, remind the working condition of related work personnel accumulator in a different manner, transmission network adopts LAN (Local Area Network) in the system, mainly finishes the transfer function of data, the accumulator on-Line Monitor Device is installed in the transformer station, in order to the monomer voltage of monitoring accumulator, the monomer internal resistance, group is pressed, electric current, environment temperature, battery temp.

The utility model can be achieved as follows function:

1. voltage acquisition function

Device can be gathered the monomer voltage of accumulator, can obtain the battery pack pressure by calculating.Relatively judge whether to occur overvoltage or undervoltage condition by software, in time alarm.

2. current acquisition function

Device can be by being installed in sensor acquisition charging current and the discharge current on the accumulator bus.

3. the internal resistance function of on-line measurement cell batteries

Device can regularly be measured internal resistance automatically and find out dead battery by analysis, and measuring process need not manual intervention.When accumulator caused inducing capacity fading owing to inherent performance change, it is big that its internal resistance also becomes gradually, can be judged as battery failure when increasing to certain value.

4. temperature survey function

Device can measures ambient temperature, the single battery temperature, alarms immediately when temperature surpasses the limit value of setting when monitoring.

5. communication function

Supervising device links with Surveillance center by network channel, also can link to each other with other system by the RS232 interface.

6. warning function

When parameters such as the temperature of monitoring, electric current, voltage, internal resistance surpassed the warning limit value of setting, device started process of transmitting immediately, and warning information is sent to Surveillance center.Surveillance center can send warning in a different manner, comprises network alarming client, note etc., and shows position that alarm set point takes place and the time of writing down the generation warning, promptly and accurately instructs maintenance and troubleshooting work.

Compared with prior art, characteristics of the present utility model are:

1) internal resistance measurement adopts moment DC current electric discharge, the influence that the additional incentive signal of having avoided the ac-current inject method measurement to bring may cause straight-flow system.

2) this device is installed the wiring that does not need to change former straight-flow system, the potential safety hazard of having avoided the system reform to introduce.

3) parameter of accumulator can accurately be measured by system when accumulator moves, and does not need the accumulator off-line.

4) battery pack that series connection is used is carried out areal survey, effectively reduces system interference, has guaranteed the accuracy of measuring.

5) running status of accumulator can be judged by system, and the internal resistance of not measuring accumulator when equalizaing charge or discharge can be carried out internal resistance measurement when the floating charging state.

6) by measuring the monomer temperature of accumulator, effectively prevent the generation of accumulator thermal runaway phenomenon.

Description of drawings

Fig. 1 is a system chart;

Fig. 2 is the voltage acquisition unit wiring diagram;

Fig. 3 is the load unit wiring diagram;

Fig. 4 is the voltage acquisition unit block diagram;

Fig. 5 is the load unit block diagram;

Fig. 6 is the temperature collecting cell block diagram;

Embodiment

Embodiment

As shown in Figure 1,1-1 is a communication unit, and 1-2 is a load unit, and 1-3 is a temperature collecting cell, and 1-4 is a voltage acquisition unit.Couple together by the RS485 bus between each unit.

As shown in Figure 2,2-1 is a charging set, and 2-2 is a voltage acquisition unit.The positive and negative polarities of #1 accumulator all will be drawn p-wire, and all the other batteries are drawn a p-wire at least.

As shown in Figure 3,3-1 is a charging set, and 3-2 is a load unit.For the influence of eliminating charging set, accurately measure accumulator internal resistance, with accumulator according to equipartition principle, be divided into plurality of sections, drawing a p-wire for every section inserts respectively on the terminal of load unit, battery pack as for the 12Vx18 joint can be divided into 9 sections, and per two batteries are 1 section, the control load unit carries out discharge measuring to every section respectively, and the contact that inserts load unit is respectively 1+, 2-, 4-, 6-, 8-, 10-, 12-, 14-, 16-, 18-.1+ represents the positive pole of #1 accumulator, and 2-represents the negative pole of #2 accumulator, and 4-represents the negative pole of #4 accumulator, and the like.

As shown in Figure 4,4-1 is a signal conditioning circuit, and 4-2 is the A/D circuit, and 4-3 is a cpu circuit, and 4-4 is a telecommunication circuit.The monomer voltage p-wire of accumulator is directly received the input end of signal conditioning circuit, handles through modulate circuit, and signal is input to the A/D circuit, finish the conversion of analog quantity to digital quantity, then, the data by CPU reads measurement send to communication unit by telecommunication circuit.

As shown in Figure 5,5-1 is an electronic load, and 5-2 is CPU and control circuit, and 5-3 is a telecommunication circuit, and K1, K2, K3, K4, K5, K6, K7......Kn are the relay output contact.Accumulator is according to equipartition principle, and segmentation inserts load unit.The break-make of CPU pilot relay is so that one section access electronic load wherein carries out discharge measuring.

As shown in Figure 6,6-1 is a telecommunication circuit, and 6-2 is CPU and control circuit, and 6-3 measures bus control circuit, and 6-4 measures bus, and 6-5 is a temperature sensor.CPU control survey bus, start-up temperature is measured, and reads the data of measurement.CPU is successively from #1 sensor, #2 sensor, #3 sensor, up to the #n sensor, after data are read, by telecommunication circuit the temperature data of measuring sent to communication unit.

Claims (6)

1. an accumulator on-Line Monitor Device is characterized in that, described device comprises that one of communication unit, voltage acquisition unit are some, one of load unit, one of temperature collecting cell, adopts the RS485 bus to connect between each unit; Described voltage acquisition unit is responsible for gathering the continuous cell voltage of sequence number, and accepts the scheduling of communication unit when internal resistance measurement, measures the sparking voltage and the recovery voltage of accumulator; Described load unit is responsible for providing discharge load when internal resistance is tested, and measures discharge current; Described temperature collecting cell is responsible for gathering the temperature of each batteries, and data are sent to communication unit; Communication unit is collected the data of each unit.
2. accumulator on-Line Monitor Device according to claim 1 is characterized in that, described communication unit is communicated by letter with host computer and adopted ICP/IP protocol transmission data.
3. accumulator on-Line Monitor Device according to claim 1, it is characterized in that, described voltage acquisition unit comprises signal conditioning circuit, A/D circuit, cpu circuit and telecommunication circuit, the monomer voltage p-wire of accumulator is directly received the input end of signal conditioning circuit, handles through modulate circuit, and signal is input to the A/D circuit, finish the conversion of analog quantity to digital quantity, then, the data by CPU reads measurement send to communication unit by telecommunication circuit.
4. accumulator on-Line Monitor Device according to claim 1, it is characterized in that, described load unit comprises electronic load, CPU and control circuit, telecommunication circuit and relay output contact, accumulator is according to equipartition principle, segmentation inserts load unit, the break-make of CPU and control circuit pilot relay is so that one section access electronic load wherein carries out discharge measuring.
5. accumulator on-Line Monitor Device according to claim 1, it is characterized in that, described temperature collecting cell comprises telecommunication circuit, CPU and control circuit, measurement bus control circuit, measures bus, temperature sensor, CPU and control circuit, control survey bus; Start-up temperature is measured, and reads the data of measurement, after data are read, by telecommunication circuit the temperature data of measuring is sent to communication unit.
6. accumulator on-line monitoring system that adopts accumulator on-Line Monitor Device as claimed in claim 1, it is characterized in that, this system comprises three parts, the one, Surveillance center, the 2nd, transmission network, the 3rd, field apparatus, described accumulator on-Line Monitor Device is in the third part of system, it is field apparatus, Surveillance center is provided with data server, preposition workstation, browsing terminal, the network and short message server, the main data of being responsible for receiving each control point, and the storage of realization data, analyze, judge, alarm function, the working condition of reminding related work personnel accumulator, transmission network adopts LAN (Local Area Network) in the system, mainly finish the transfer function of data, the accumulator on-Line Monitor Device is installed in the transformer station.
CN2009200299380U 2009-07-17 2009-07-17 Online-detecting device and system of storage battery CN201583631U (en)

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Application Number Priority Date Filing Date Title
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102346238A (en) * 2011-08-04 2012-02-08 中国科学院武汉岩土力学研究所 Battery management device for rescue capsule
CN102916232A (en) * 2012-11-15 2013-02-06 余姚市供电局 Method and system for on-line maintenance of storage battery
CN102946144A (en) * 2012-11-25 2013-02-27 山东电力集团公司淄博供电公司 Transformer substation direct-current power supply information management system based on three-stage network architecture
CN102981057A (en) * 2012-11-15 2013-03-20 余姚市供电局 Line connection method for measuring internal resistance of storage battery
CN103033759A (en) * 2012-12-11 2013-04-10 上海市电力公司 Storage battery thermal runway intelligent judgment method
CN103718054A (en) * 2011-06-15 2014-04-09 米其林企业总公司 Device for monitoring an electrical accumulation battery and associated method
CN104484005A (en) * 2014-10-23 2015-04-01 中国空间技术研究院 Satellite lithium ion storage battery simulating system
CN105044604A (en) * 2015-06-26 2015-11-11 国网上海市电力公司 Storage battery pack online monitoring system and monitoring method thereof
CN105223510A (en) * 2015-09-01 2016-01-06 国家电网公司 A kind of battery pack based on internal resistance Information Entropy falls behind cell method of discrimination
CN105510718A (en) * 2016-01-20 2016-04-20 大唐(赤峰)新能源有限公司 System for monitoring internal resistance of wind generator set storage battery and control method
CN107153164A (en) * 2017-07-03 2017-09-12 湖州中超科技有限公司 A kind of novel storage battery performance automatic checkout system and diagnostic method
CN107390131A (en) * 2017-07-17 2017-11-24 国网黑龙江省电力有限公司电力科学研究院 Storage batteries of transformer substation comprehensive monitor system
CN109901078A (en) * 2019-04-18 2019-06-18 国网冀北电力有限公司承德供电公司 Cell batteries internal resistance and temperature measuring circuit
CN109921103A (en) * 2017-12-13 2019-06-21 中国电信股份有限公司 The maintaining method and system of the maintaining method and system of battery group, battery

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103718054B (en) * 2011-06-15 2017-04-26 米其林企业总公司 Device for monitoring an electrical accumulation battery and associated method
CN103718054A (en) * 2011-06-15 2014-04-09 米其林企业总公司 Device for monitoring an electrical accumulation battery and associated method
CN102346238A (en) * 2011-08-04 2012-02-08 中国科学院武汉岩土力学研究所 Battery management device for rescue capsule
CN102916232A (en) * 2012-11-15 2013-02-06 余姚市供电局 Method and system for on-line maintenance of storage battery
CN102981057A (en) * 2012-11-15 2013-03-20 余姚市供电局 Line connection method for measuring internal resistance of storage battery
CN102981057B (en) * 2012-11-15 2015-08-05 余姚市供电局 A kind of line connecting method measuring accumulator internal resistance
CN102916232B (en) * 2012-11-15 2014-12-24 余姚市供电局 Method and system for on-line maintenance of storage battery
CN102946144A (en) * 2012-11-25 2013-02-27 山东电力集团公司淄博供电公司 Transformer substation direct-current power supply information management system based on three-stage network architecture
CN102946144B (en) * 2012-11-25 2016-01-20 国家电网公司 Based on the transforming plant DC power information management system of three-level network framework
CN103033759B (en) * 2012-12-11 2015-02-18 上海市电力公司 Storage battery thermal runway intelligent judgment method
CN103033759A (en) * 2012-12-11 2013-04-10 上海市电力公司 Storage battery thermal runway intelligent judgment method
CN104484005A (en) * 2014-10-23 2015-04-01 中国空间技术研究院 Satellite lithium ion storage battery simulating system
CN104484005B (en) * 2014-10-23 2015-11-25 中国空间技术研究院 A kind of satellite lithium-ions battery simulation system
CN105044604A (en) * 2015-06-26 2015-11-11 国网上海市电力公司 Storage battery pack online monitoring system and monitoring method thereof
CN105223510A (en) * 2015-09-01 2016-01-06 国家电网公司 A kind of battery pack based on internal resistance Information Entropy falls behind cell method of discrimination
CN105510718A (en) * 2016-01-20 2016-04-20 大唐(赤峰)新能源有限公司 System for monitoring internal resistance of wind generator set storage battery and control method
CN107153164A (en) * 2017-07-03 2017-09-12 湖州中超科技有限公司 A kind of novel storage battery performance automatic checkout system and diagnostic method
CN107390131A (en) * 2017-07-17 2017-11-24 国网黑龙江省电力有限公司电力科学研究院 Storage batteries of transformer substation comprehensive monitor system
CN109921103A (en) * 2017-12-13 2019-06-21 中国电信股份有限公司 The maintaining method and system of the maintaining method and system of battery group, battery
CN109901078A (en) * 2019-04-18 2019-06-18 国网冀北电力有限公司承德供电公司 Cell batteries internal resistance and temperature measuring circuit

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Granted publication date: 20100915

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