CN201117093Y - Converting station accumulator remote monitoring device - Google Patents

Converting station accumulator remote monitoring device Download PDF

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Publication number
CN201117093Y
CN201117093Y CNU2007201051504U CN200720105150U CN201117093Y CN 201117093 Y CN201117093 Y CN 201117093Y CN U2007201051504 U CNU2007201051504 U CN U2007201051504U CN 200720105150 U CN200720105150 U CN 200720105150U CN 201117093 Y CN201117093 Y CN 201117093Y
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CN
China
Prior art keywords
accumulator
circuit module
data
battery
remote monitoring
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CNU2007201051504U
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Chinese (zh)
Inventor
杨昌武
冯正华
董兴海
廖晓峰
冯俊宗
武全福
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云南电网公司楚雄供电局
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Priority to CNU2007201051504U priority Critical patent/CN201117093Y/en
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Publication of CN201117093Y publication Critical patent/CN201117093Y/en

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Abstract

A converting station accumulator remote monitoring device, the utility model relates to a measuring device for measuring the accumulator capacitance, which is characterized in that a data collecting board (1) is connected with an AT91RM92000 data processor (2) through a 485 bus and the AT91RM92000 data processor (2) is further connected with a man-machine interface (3) through an Ethernet network. The monitoring device has the advantages of simple structure, easy operation, the measuring device is practical and reliable, and has high measurement accuracy, and the remote monitoring device has the advantage of realizing the remote monitoring to converting station accumulators (11).

Description

Transformer station's accumulator remote monitoring device

Technical field

The utility model belongs to accumulator monitoring apparatus structure and monitoring device technical field of structures.

Background technology

Along with people to the going deep into of valve-controlled sealed lead-acid battery research, accumulator internal resistance has become an important indicator weighing the battery quality, internal resistance detects an important means that becomes battery service.Measurement mechanism to accumulator internal resistance mainly is the accumulator on-Line Monitor Device at present, its essence is the battery logging.The battery logging is divided into two kinds again, and a kind of is the logging of measuring single battery voltage, and another is an intelligent inspection tour instrument.

The monomer voltage polling instrument is made up of a main control module and several acquisition modules, and the order of primary module RX monitor sends the watch-dog of battery data to DC equipment; Each module is gathered voltage, electric current and the temperature of 10~20 batteries in the acquisition module; Watch-dog by DC charging equipment can show each single battery voltage, the numbering of failure judgement battery and provide warning.This class battery logging is generally provided by DC equipment manufacturer, and it is the apolegamy device when the order DC equipment, owing to function singleness, can not test internal resistance, capacity, and measuring accuracy is poor, wrong report easily, has limited being extensive use of of it.

Intelligent inspection tour instrument is structurally similar with the monomer voltage polling instrument, is made up of main frame and battery acquisition module, and main frame can directly be placed in the battery room, and data presentation and warning function can be delivered on the display unit that is provided with in the pulpit by connection.It also has the capacity of measurement and the whole group storage battery of demonstration and carries out the data intelligence analysis except the monomer voltage of energy measurement accumulator.

The battery logging mainly is can find the accumulator short circuit, open circuit and situation such as battery is unusual, is difficult to find but accumulator capacity descended, and has both allowed to the monitoring capacity, with true capacity very big gap is arranged, not energy measurement internal resistance.

On the basis of battery logging, increase the online detection of internal resistance, and adopted technology such as modern communication and computing machine, set up accumulator on-line intelligence supervisory system.System mainly is made up of data acquisition module, discharge module, monitoring unit three parts, operational factor (voltage, electric current, temperature), the internal resistance of timing automatic test battery, Electro-Static Discharge with real-time monitoring battery measured battery capacity, composite measurement is judged battery performance and variation tendency and display alarm function, and system also can realize networking, intelligent management.The on-line intelligence supervisory system can be measured accumulator internal resistance, but mainly has the following disadvantages:

(1) since before and after the terminal voltage monitoring error that occurs in the on-line monitoring, discharge process current fluctuation, outage voltage catch the measuring technique limitation, and problem such as online connecting line electric weight decay, internal resistance on-line monitoring precision is not high.

(2) in order to realize long-range discharge operation, increased system complexity greatly.This at present homemade type systematic generally is to carry out under static state or off-line state when measuring internal resistance, by manually discharging to the scene, can't realize on-line measurement, and labor intensive.

(3) for the measurement of carrying out internal resistance accumulator is discharged, influenced the normal operation of accumulator, often discharge causes certain influence to the life of storage battery.

(4) owing to there is above-mentioned deficiency (3), limit the number of times (cycle) of internal resistance measurement, can't realize on-line monitoring truly, thereby can not in time find the situation that accumulator property descends.

Summary of the invention

The purpose of this utility model provides a kind of just and can carry out real time on-line nondestructive to accumulator internal resistance and accurately measure in order to overcome the weak point that above-mentioned existing measuring battery device exists, measurement mechanism is simple, practical and reliable, can carry out the power station accumulator remote monitoring device of remote monitoring to accumulator.

The purpose of this utility model is achieved by the following technical solution.

The utility model device connects Embedded A T91RM9200 data processor by data acquisition board by 485 buses, and Embedded A T91RM9200 data processor connects man-machine interface by Ethernet; Wherein, data acquisition board is connected with accumulator by detection line; Data acquisition board includes audible communication signal generating circuit module, monomer voltage metering circuit module, exchange of information testing circuit module, sampling channel selection control circuit module, difference amplification filtering circuit module, electric current and temperature detection interface module, multi-way switch; Multi-way switch is connected with each circuit module single file.

The beneficial effects of the utility model are, apparatus structure is simple, easy operating, and measuring method is fairly simple, practical, reliable, and the measuring accuracy height.Use accumulator monitoring system of transformer station that measurement mechanism finishes in conjunction with human-computer interaction interface (F940GOT) and can at length react the duty of current accumulator, for the monitoring of transformer station direct current system standby battery group part even whole transformer station provides important value.Judge the performance of accumulator by parameters such as the monomer voltage that detects accumulator, whole group electric current, environment temperature, internal resistances.Single-chip microcomputers all in the monitoring device are formed one 485 network jointly, by this network detected data are delivered to embedded computer system, carry out the analyzing and processing of data.Efficiently solve the problem of determining and obtaining of AC signal, and the difficult problem of measuring accuracy problem, eliminated AC method and detected the technology of accumulator internal resistance at the obstacle that transforms to practical application area.

Further set forth the utility model content below in conjunction with Figure of description and embodiment.

Description of drawings

Fig. 1 is the utility model device syndeton schematic block diagram;

Fig. 2 is data acquisition board and accumulator syndeton schematic block diagram.

Embodiment

The utility model connects Embedded A T91RM9200 data processor 2 by data acquisition board 1 by 485 buses, and Embedded A T91RM9200 data processor 2 connects man-machine interface 3 by Ethernet; Wherein, data acquisition board 1 is connected with accumulator 11 by detection line 12; Data acquisition board 1 includes audible communication signal generating circuit module 4, monomer voltage metering circuit module 5, exchange of information testing circuit module 6, sampling channel selection control circuit module 7, difference amplification filtering circuit module 8, electric current and temperature detection interface module 9, multicircuit switch 10; Multicircuit switch 10 is connected with each circuit module single file.As Fig. 1.

This device is mainly by data acquisition board 1, online accumulator 11 various signal datas (are comprised the battery pack working current, monomer battery voltage, battery pack temperature, the induction ac voltage signal reaches the phase differential of each ac voltage signal that is caused by internal resistance etc.) gather, and be uploaded to Embedded A T91RM9200 data processor 2 by 485 buses and carry out data processing, Embedded A T91RM9200 data processor 2 carries out overall treatment with institute's image data, thereby draws the cell life-span, the cell residual capacity, internal resistance of single cell, monomer battery voltage, battery voltage, battery pack current, data such as battery pack temperature and with these data storage in the CF card of embedded system.Man-machine interface 3 can the detected up-to-date information of instant playback at touch-screen by Ethernet.Remote browse main frame 13 is directly browsed on-the-spot real time data by the IE browser, simultaneously can have historical data in the embedded computer system CF card by page download.System compares the protection voltage of these parameters and monomer and whole Battery pack and alarm temperature value etc. automatically, when surpassing setting value, and output alarm prompting, and record automatically.Background computer is handled and can be generated various charts, retrieval failure logging, and the measurement result of battery is carried out analysis-by-synthesis.The remote browse theory diagram as shown in Figure 2.

Data acquisition board 1 mainly includes audible communication signal generating circuit module 4 by high-precision A single-chip microcomputer C8051F060 and peripheral circuit, monomer voltage metering circuit module 5, exchange of information testing circuit module 6, sampling channel is selected control circuit module 7, difference amplification filtering circuit module 8, electric current and temperature detection interface module 9, multicircuit switch 10 (having used isolation voltage electric current special module CE-VZ01) constitutes, the main voltage of being responsible for battery pack, electric current, the collection of information such as temperature transfers data to AT91RM9200 data processor and embedded computer by serial ports; The AT91RM9200 data processor has made up the Software Development Platform based on ARM9 hardware platform embedded Linux system, the main realization obtained the data of collection plate by serial ports, and store, provide web server for distance host and local man-machine interface (touch-screen) and monitor terminal displaying live view accumulator data simultaneously, and provide data to download, for the distance host data download.

Man-machine interface 3 adopts the GOT940 touch-screen of Mitsubishi.Directly be connected by RS-232 interface with data processor, send adjust, Query Information and receive and show accumulator information, sound and light alarm is provided, daily function such as adjust realizes man-machine interaction.

The remote browse main frame is so long as provide any computing machine of IE browser all to can be used as distance host, the real-time information of inquiry transformer station battery pack.

The signals collecting implementation procedure is as follows: the module of data acquisition board 1 places room, accumulator 11 place, we need respectively draw a line from the two ends of each accumulator 11 during image data, as battery pack, need 109 signal detection line altogether for 108 cells.Signal detection module is realized internal resistance and voltage detecting by a slice high-speed microprocessor and a slice High-Speed High-Accuracy AD sampling A, has a bidirectional current detecting sensor to realize that the charging of accumulator and discharge current detect simultaneously; Three temperature sensors of high precision realize that the battery-operated environment temperature detects, with the corrected parameter that calculates as internal resistance.Deliver to multicircuit switch 10 through after the capacitance, deliver to data acquisition board 1 again, we just can come each cell of battery pack is carried out cycle detection by control multicircuit switch 10 like this.The phase differential of accumulator input/output signal also can generate waveform with the MATLAB software emulation and observe.Can only observe the existence of phase differential with simulation waveform but can not specifically calculate the phase place extent, gather this phase differential so this device has designed special signal acquiring system.

Wherein audible communication signal generating circuit module 4 is made of ICL8038, produces the sinusoidal voltage signal, and couple drive is the two ends that constant ac current signal is added in battery pack then.Consider influence, need to dispose capacitance in the ac driven circuit battery pack or charging set.Equally, in detecting the induced voltage circuit, also need to dispose capacitance, to avoid the final measuring accuracy of direct current composition influence.

Signal and data algorithm process computer mainboard are the arm processor of a high-performance low-power-consumption high reliability and the embedded computer system of linux operating system, mainly finish according to the original datagram of obtaining signal detection module by 485 buses and specialized designs agreement, obtain the voltage and the internal resistance of each cell by certain algorithm, the electric current and the operating ambient temperature of whole Battery pack.Embedded computer system operation tcp/ip agreement, it can directly be an Ethernet node, detect data by a webserver and ftp server to the issue of user's LAN (Local Area Network), provide the touch-screen at a scene can directly inquire about the detection data at the scene and operational factor is set simultaneously.

The remote client terminal computing machine mainly is made up of user's multi-purpose computer, can be directly by the webpage remote browse with download the accumulator data and system operational parameters is set.

The utility model device product has dropped into use on August 18th, 2006 in 110kV western suburb transformer station of Chuxiong Power Supply Bureau Of Yunnan Electric Network Company (cover) and 220kV Xie Jia river transformer station (two covers).By in June, 2007, its stability is high, has obtained practice effect preferably, in putting into operation, the normal operation of straight-flow system is not had any impact, and makes the utility model device product have more application prospects.

Claims (1)

1, transformer station's accumulator remote monitoring device, relate to a kind of measuring equipment of measuring capacity of the accumulator, it is characterized in that, it connects AT91RM9200 data processor (2) by data acquisition board (1) by 485 buses, and AT91RM9200 data processor (2) connects man-machine interface (3) by Ethernet again; Wherein, data acquisition board (1) is connected with accumulator (11) by detection line (12); Data acquisition board (1) includes audible communication signal generating circuit module (4), monomer voltage metering circuit module (5), exchange of information testing circuit module (6), sampling channel selection control circuit module (7), difference amplification filtering circuit module (8), electric current and temperature detection interface module (9), multicircuit switch (10); Multicircuit switch (10) is connected with each circuit module single file.
CNU2007201051504U 2007-11-14 2007-11-14 Converting station accumulator remote monitoring device CN201117093Y (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944779A (en) * 2010-10-26 2011-01-12 上海天晶电力科技发展有限公司 Digitalized full-function state monitoring and safety evaluation device of substation direct current system
CN102142186A (en) * 2011-03-01 2011-08-03 合肥国轩高科动力能源有限公司 Remote monitoring system for lithium battery pack
CN102739038A (en) * 2011-04-15 2012-10-17 波音公司 Bi-directional converter voltage controlled current source for voltage regulation
CN103308866A (en) * 2013-06-04 2013-09-18 安徽省电力公司阜阳供电公司 Direct current insulation on-line monitoring device of transformer substation
CN103825365A (en) * 2014-03-06 2014-05-28 国家电网公司 State monitoring management platform of direct current equipment of transformer substation based on real-time historical database
CN104142479A (en) * 2014-08-08 2014-11-12 成都蓝格尔科技有限公司 Test module, monitor system and detection method for lead-acid cells
CN105158573A (en) * 2015-09-10 2015-12-16 北京动力源科技股份有限公司 Battery internal resistance detection circuit and battery internal resistance detection method and apparatus
CN106569144A (en) * 2016-11-14 2017-04-19 中车大连机车车辆有限公司 Rail transit vehicle-mounted storage battery online monitoring system
CN108490358A (en) * 2018-03-15 2018-09-04 深圳前海有电物联科技有限公司 Battery remote monitoring system and method
CN110031776A (en) * 2019-04-18 2019-07-19 广州市友达电子科技有限公司 The method and device of internal resistance of cell detection is carried out using infrared mode
CN110031775A (en) * 2019-04-18 2019-07-19 广州市友达电子科技有限公司 The method and device of internal resistance of cell detection is carried out using wired mode
CN108490358B (en) * 2018-03-15 2020-06-30 深圳前海有电物联科技有限公司 Battery remote monitoring system and method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944779A (en) * 2010-10-26 2011-01-12 上海天晶电力科技发展有限公司 Digitalized full-function state monitoring and safety evaluation device of substation direct current system
CN102142186A (en) * 2011-03-01 2011-08-03 合肥国轩高科动力能源有限公司 Remote monitoring system for lithium battery pack
CN102142186B (en) * 2011-03-01 2013-01-09 合肥国轩高科动力能源有限公司 Remote monitoring system for lithium battery pack
CN102739038A (en) * 2011-04-15 2012-10-17 波音公司 Bi-directional converter voltage controlled current source for voltage regulation
US9531190B2 (en) 2011-04-15 2016-12-27 The Boeing Company Bi-directional converter voltage controlled current source for voltage regulation
CN103308866A (en) * 2013-06-04 2013-09-18 安徽省电力公司阜阳供电公司 Direct current insulation on-line monitoring device of transformer substation
CN103825365A (en) * 2014-03-06 2014-05-28 国家电网公司 State monitoring management platform of direct current equipment of transformer substation based on real-time historical database
CN104142479A (en) * 2014-08-08 2014-11-12 成都蓝格尔科技有限公司 Test module, monitor system and detection method for lead-acid cells
CN104142479B (en) * 2014-08-08 2016-12-07 成都蓝格尔科技有限公司 A kind of test module of lead-acid battery
CN105158573A (en) * 2015-09-10 2015-12-16 北京动力源科技股份有限公司 Battery internal resistance detection circuit and battery internal resistance detection method and apparatus
CN105158573B (en) * 2015-09-10 2018-09-14 北京动力源科技股份有限公司 A kind of battery pack internal resistance detection circuit and battery pack internal resistance detection method and device
CN106569144A (en) * 2016-11-14 2017-04-19 中车大连机车车辆有限公司 Rail transit vehicle-mounted storage battery online monitoring system
CN108490358A (en) * 2018-03-15 2018-09-04 深圳前海有电物联科技有限公司 Battery remote monitoring system and method
CN108490358B (en) * 2018-03-15 2020-06-30 深圳前海有电物联科技有限公司 Battery remote monitoring system and method
CN110031776A (en) * 2019-04-18 2019-07-19 广州市友达电子科技有限公司 The method and device of internal resistance of cell detection is carried out using infrared mode
CN110031775A (en) * 2019-04-18 2019-07-19 广州市友达电子科技有限公司 The method and device of internal resistance of cell detection is carried out using wired mode

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Granted publication date: 20080917