CN103645442A - Detection apparatus for surplus capacity of electric locomotive storage battery - Google Patents

Detection apparatus for surplus capacity of electric locomotive storage battery Download PDF

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Publication number
CN103645442A
CN103645442A CN201310653604.1A CN201310653604A CN103645442A CN 103645442 A CN103645442 A CN 103645442A CN 201310653604 A CN201310653604 A CN 201310653604A CN 103645442 A CN103645442 A CN 103645442A
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China
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battery
acquisition unit
electric locomotive
single battery
storage battery
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CN201310653604.1A
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Chinese (zh)
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何安清
王艳
丁艳辉
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CRRC Zhuzhou Locomotive Co Ltd
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CSR Zhuzhou Electric Locomotive Co Ltd
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Priority to CN201310653604.1A priority Critical patent/CN103645442A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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Abstract

The invention provides a detection apparatus for a surplus capacity of an electric locomotive storage battery. The detection apparatus is composed of a current acquisition unit, a voltage acquisition unit, a storage battery sampling device and a storage battery controller. A corresponding relation between an internal resistance value of a single storage battery in an internal resistance changing section and a surplus capacity of the single storage battery in the storage battery pack is prestored in the storage battery controller. According to the invention, when the electric locomotive runs and the storage battery pack is discharging, voltages and currents all the single storage batteries are collected; calculation is carried out to obtain internal resistance values of all the single storage batteries; and surplus capacities of all the single storage batteries are searched in the corresponding relation between the internal resistance value and the surplus capacity of the single storage battery. Therefore, detection of the surplus capacity of the storage battery of the electric locomotive is realized; accurate data can be provided for daily repairing and maintenance of the electric locomotive storage battery; phenomena of over charging and over discharging of the electric locomotive storage battery can be prevented; and thus the service life of the electric locomotive storage battery is prolonged.

Description

The pick-up unit of electric locomotive remaining battery capacity
Technical field
The present invention relates to electric locomotive battery technology field, more particularly, relate to a kind of pick-up unit of electric locomotive remaining battery capacity.
Background technology
Electric locomotive accumulator is the important component part of electric locomotive DC power-supply system, it is as the back-up source of direct current supply, when mainly undertaking electric locomotive under falling arciform state, while crossing phase-separating section or in motion process pantograph off-line causing power failure, for startup, control system, supervisory system and the communication system of electric locomotive provides stable, safe and reliable power supply guarantee, guarantee the normal operation of visual plant in electric locomotive.
Conventional battery charging plant in electric locomotive, generally controls by the output characteristics of setting that function is carried out equalizaing charge to electric locomotive accumulator and floating charge is managed.Because battery charging plant does not possess accumulator measuring ability, make when electric locomotive remaining battery capacity is not known, battery charging plant is to electric locomotive charge in batteries, easily there is the situation of overcharging, or the situations such as overdischarge appear in electric locomotive accumulator, thereby cause be affected the serviceable life of electric locomotive accumulator.
Summary of the invention
In view of this, the invention provides a kind of pick-up unit of electric locomotive remaining battery capacity, to realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
A pick-up unit for electric locomotive remaining battery capacity, comprising:
Be connected with battery pack, for gathering the current acquisition unit of the discharge current of described battery pack, described discharge current is that described battery pack produces in without electric phase-separating section operational process in electric locomotive;
Be connected with described battery pack, for gathering the voltage acquisition unit of the voltage of described each single battery of battery pack;
Be connected with described current acquisition unit, described voltage acquisition unit respectively, for the voltage signal of the current signal of described current acquisition unit output, the output of described voltage acquisition unit is carried out to analog-to-digital accumulator sampling apparatus;
Be connected with described accumulator sampling apparatus, be pre-stored with the corresponding relation of the residual capacity of the internal resistance value of described single battery in internal resistance constant interval and described single battery, for to obtain each described in the voltage signal of single battery and current signal calculate, obtain the internal resistance value of single battery described in each, and from the corresponding relation of the residual capacity of described internal resistance value and described single battery, find the battery controller of the residual capacity of single battery described in each.
Preferably, described voltage acquisition unit is multi-way switch circuit, each switch in described multi-way switch circuit is connected with a described single battery in described battery pack respectively, switch conducting when gathering the voltage of the described single battery being connected with described switch described in each.
Preferably, integrated sampling hold circuit and the analog to digital converter of being provided with in described accumulator sampling apparatus;
Being connected with described current acquisition unit, described analog to digital converter respectively of described sampling hold circuit, described analog to digital converter is connected with described battery controller, described sampling hold circuit, during described analog to digital converter is to the current signal analog to digital conversion of described current acquisition unit output, keeps the current signal of described current acquisition unit output constant.
Preferably, described voltage acquisition unit is arranged in described accumulator sampling apparatus.
Preferably, described current acquisition unit is current sensor.
Preferably, described current transformer is set in the discharge paths of described battery pack.
Preferably, also comprise: display unit;
Described display unit is connected with described battery controller, for showing the residual capacity of single battery described in each.
Preferably, described in each in described battery pack, single battery is connected in series.
Preferably, also comprise: temperature collecting cell, described temperature collecting cell is connected with described accumulator sampling apparatus, for gathering the environment temperature of described battery pack.
Preferably, described temperature collecting cell is temperature sensor.
From above-mentioned technical scheme, can find out, the invention provides a kind of pick-up unit of electric locomotive remaining battery capacity, comprise current acquisition unit, voltage acquisition unit, accumulator sampling apparatus and battery controller, wherein, in battery controller, be pre-stored with the corresponding relation of the residual capacity of internal resistance value in internal resistance constant interval of single battery in battery pack and single battery.The present invention is in electric locomotive operation and battery pack discharge process, voltage and current to each single battery gathers, the internal resistance value of each single battery then calculating, and in the corresponding relation of internal resistance value and single battery residual capacity, find the residual capacity of each single battery, thereby realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the pick-up unit of the disclosed a kind of electric locomotive remaining battery capacity of the embodiment of the present invention;
Fig. 2 is the structural representation of the pick-up unit of the disclosed another kind of electric locomotive remaining battery capacity of the embodiment of the present invention;
Fig. 3 is the schematic diagram of the disclosed a kind of battery tension corresponding with Fig. 2 sampling of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the invention discloses a kind of structural representation of pick-up unit of electric locomotive remaining battery capacity, pick-up unit comprises: current acquisition unit 11, voltage acquisition unit 12, accumulator sampling apparatus 13 and battery controller 14;
Wherein:
Current acquisition unit 11 is connected with battery pack 01, for gathering the discharge current of battery pack 01, wherein, described discharge current is that battery pack 01 produces in without electric phase-separating section operational process in electric locomotive, now, electric locomotive passes through without electric phase-separating section, the stage of battery pack 01 in natural discharge condition.
Voltage acquisition unit 12 is connected with battery pack 01, for gathering the voltage of battery pack 01 each single battery.
Accumulator sampling apparatus 13 is connected with current acquisition unit 11, voltage acquisition unit 12 respectively, for the voltage signal of the current signal of current acquisition unit 11 outputs, voltage acquisition unit 12 outputs is carried out to analog to digital conversion.
Battery controller 14 is connected with accumulator sampling apparatus 13, battery controller 14 is pre-stored with the corresponding relation of the residual capacity of internal resistance value in internal resistance constant interval of single battery in battery pack 01 and single battery, the voltage signal of 14 pairs of each single batteries that obtain of battery controller and current signal calculate, obtain the internal resistance value of each single battery, and from the corresponding relation of the residual capacity of internal resistance value and single battery, find the residual capacity of each single battery.
The present invention is in electric locomotive passes through without electric phase-separating section operation and battery pack 01 discharge process, voltage and current to each single battery gathers, the internal resistance value of each single battery then calculating, and in the corresponding relation of internal resistance value and single battery residual capacity, find the residual capacity of each single battery, thereby realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
Meanwhile, can also judge that whether this single battery is aging according to the residual capacity of single battery, to change in time, thereby effectively reduce the unnecessary loss bringing because single battery is aging.
Preferably, the battery pack 01 in the present embodiment can, for valve-controlled sealed lead-acid battery (Valve Regulated Lead Acid Battery, VRLA), be called again maintenance-free lead accumulator or VRLA accumulator.
It should be noted is that, voltage acquisition unit 12 can be arranged in accumulator sampling apparatus 13.
Voltage acquisition unit 12 can be multi-way switch circuit.
Current acquisition unit 11 can be current sensor.
Single battery in battery pack 01 is connected in series, and the model of single battery is identical.
Accumulator sampling apparatus 13 can integratedly be provided with sampling hold circuit and analog to digital converter.
Referring to Fig. 2, the embodiment of the invention discloses the structural representation of the pick-up unit of another kind of electric locomotive remaining battery capacity, pick-up unit comprises: current acquisition unit 21, multi-way switch circuit 22, accumulator sampling apparatus 23 and battery controller 24;
In the present embodiment, multi-way switch circuit 22 is arranged in accumulator sampling apparatus 23, integrated sampling hold circuit 25 and the analog to digital converter 26 of being provided with of accumulator sampling apparatus 23;
Concrete, in each single battery 004(Fig. 2 in battery charging plant 002 and battery pack 001, four single batteries 004 are only shown) be connected in series, think each single battery 004 charging;
The direction of the charging current I of the load 003 in 001 pair of electric locomotive of battery pack is referring to Fig. 2.
Current acquisition unit 21 is set in the discharge paths of battery pack 001, for gathering the discharge current of battery pack 001, wherein, described discharge current is that battery pack 001 produces in electric locomotive operational process, now, electric locomotive passes through without electric phase-separating section, the stage of battery pack 001 in natural discharge condition.
Each switch in multi-way switch circuit 22 is connected respectively (being specifically connected with the accumulator plate of single battery 004) with a single battery 004 in battery pack 001, the conducting when gathering the voltage of the single battery 004 being connected with this switch of each switch.
The output terminal of multi-way switch circuit 22 is connected with the input end of analog to digital converter 26, and multi-way switch circuit 22 sends the voltage signal of collection to analog to digital converter 26.
Sampling hold circuit 25 is connected with current acquisition unit 21, analog to digital converter 26 respectively, sampling hold circuit 25 for the current signal analog to digital conversion in 26 pairs of current acquisition unit of analog to digital converter 21 output during, keep the current signal of current acquisition unit 21 outputs constant, thereby avoid causing because of the variation of load 003 variation of current signal, guaranteed that the collection of current signal and the collection of multi-way switch circuit 22 voltage signals are synchronous.
The output terminal of analog to digital converter 26 is connected with battery controller 24, for the current signal that the current signal analog-to-digital conversion that current acquisition unit 21 is exported is obtained, and the voltage signal that the voltage signal analog-to-digital conversion of multi-way switch circuit 22 outputs obtains sends battery controller 24 to.
Battery controller 24 is pre-stored with each internal resistance value in the internal resistance constant interval of each single battery 004 in battery pack 001, residual capacity with the single battery 004 corresponding with each internal resistance value, the voltage signal of each single battery 004 that 24 pairs of battery controllers obtain and current signal calculate, obtain the internal resistance value of each single battery 004, and from the corresponding relation of the residual capacity of internal resistance value and single battery, find the residual capacity of each single battery 004.
Wherein, accumulator sampling apparatus 23 can pass through CAN(Controller Area Network, controller local area network with battery controller 24) bus connection.
In battery controller 24, the corresponding relation of the residual capacity of the internal resistance value of each single battery 004 and each single battery 004 can be depicted as internal resistance value-residual capacity curve.
The present invention is in electric locomotive passes through without electric phase-separating section operation and battery pack 001 discharge process, voltage and current to each single battery 004 gathers, the internal resistance value of each single battery 004 then calculating, and in the corresponding relation of the residual capacity of internal resistance value and single battery 004, find the residual capacity of each single battery 004, thereby realize the detection to electric locomotive remaining battery capacity, for the maintenance repair of electric locomotive accumulator provides accurate data, avoid the generation of electric locomotive overcharge of a battery and over-discharge situation, extend the serviceable life of electric locomotive accumulator.
Meanwhile, can also judge that whether this single battery 004 is aging according to the residual capacity of single battery 004, to change in time, thereby effectively reduce the unnecessary loss bringing because single battery 004 is aging.
It should be noted is that, in the present embodiment, current acquisition unit 21 can be current transformer.
For further optimizing above-described embodiment, can also comprise: temperature collecting cell 27;
Temperature collecting cell 27 is connected with accumulator sampling apparatus 23, specifically be connected with the analog to digital converter 26 in accumulator sampling apparatus 23, temperature collecting cell 27 sends the environment temperature of the battery pack of collection 001 to analog to digital converter 26 and carries out analog to digital conversion, analog to digital converter 26 sends the environment temperature after analog to digital conversion to battery controller 24, battery controller 24 carries out temperature correction for the internal resistance value of each single battery 004 calculating, and obtains the dynamic internal resistance of a single battery 004.
Temperature collecting cell 27 can be temperature sensor, and when reality is used, temperature collecting cell 27 can be arranged on a single battery 004.
For further optimizing above-described embodiment, can also comprise: display unit 28, display unit 28 is connected with battery controller 24, for showing the residual capacity of each single battery 004.
Referring to Fig. 3, the embodiment of the invention discloses a kind of schematic diagram of the battery tension corresponding with Fig. 2 sampling, battery charging plant 002 is connected in series with each single battery 004 in battery pack 001, each single battery 004 is connected with multi-way switch circuit 22, multi-way switch circuit 22 is connected with battery controller 24 by analog to digital converter 26, and the direction of the charging current I of the load 003 in 001 pair of electric locomotive of battery pack is referring to Fig. 3.Battery tension sampling principle, specifically referring to above-described embodiment, repeats no more herein.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. a pick-up unit for electric locomotive remaining battery capacity, is characterized in that, comprising:
Be connected with battery pack, for gathering the current acquisition unit of the discharge current of described battery pack, described discharge current is that described battery pack produces in without electric phase-separating section operational process in electric locomotive;
Be connected with described battery pack, for gathering the voltage acquisition unit of the voltage of described each single battery of battery pack;
Be connected with described current acquisition unit, described voltage acquisition unit respectively, for the voltage signal of the current signal of described current acquisition unit output, the output of described voltage acquisition unit is carried out to analog-to-digital accumulator sampling apparatus;
Be connected with described accumulator sampling apparatus, be pre-stored with the corresponding relation of the residual capacity of the internal resistance value of described single battery in internal resistance constant interval and described single battery, for to obtain each described in the voltage signal of single battery and current signal calculate, obtain the internal resistance value of single battery described in each, and from the corresponding relation of the residual capacity of described internal resistance value and described single battery, find the battery controller of the residual capacity of single battery described in each.
2. pick-up unit according to claim 1, it is characterized in that, described voltage acquisition unit is multi-way switch circuit, each switch in described multi-way switch circuit is connected with a described single battery in described battery pack respectively, switch conducting when gathering the voltage of the described single battery being connected with described switch described in each.
3. pick-up unit according to claim 1, is characterized in that, integrated sampling hold circuit and the analog to digital converter of being provided with in described accumulator sampling apparatus;
Being connected with described current acquisition unit, described analog to digital converter respectively of described sampling hold circuit, described analog to digital converter is connected with described battery controller, described sampling hold circuit, during described analog to digital converter is to the current signal analog to digital conversion of described current acquisition unit output, keeps the current signal of described current acquisition unit output constant.
4. pick-up unit according to claim 1, is characterized in that, described voltage acquisition unit is arranged in described accumulator sampling apparatus.
5. pick-up unit according to claim 1, is characterized in that, described current acquisition unit is current sensor.
6. pick-up unit according to claim 5, is characterized in that, described current transformer is set in the discharge paths of described battery pack.
7. pick-up unit according to claim 1, is characterized in that, also comprises: display unit;
Described display unit is connected with described battery controller, for showing the residual capacity of single battery described in each.
8. pick-up unit according to claim 1, is characterized in that, single battery is connected in series described in each in described battery pack.
9. pick-up unit according to claim 1, is characterized in that, also comprises: temperature collecting cell, described temperature collecting cell is connected with described accumulator sampling apparatus, for gathering the environment temperature of described battery pack.
10. pick-up unit according to claim 9, is characterized in that, described temperature collecting cell is temperature sensor.
CN201310653604.1A 2013-12-06 2013-12-06 Detection apparatus for surplus capacity of electric locomotive storage battery Pending CN103645442A (en)

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CN104145190A (en) * 2012-02-29 2014-11-12 Nec能源元器件株式会社 Battery pack and method for calculating electric energy of battery pack
CN104345281A (en) * 2014-10-11 2015-02-11 苏州克兰兹电子科技有限公司 Battery management system of electric automobile
CN105005001A (en) * 2015-06-26 2015-10-28 江苏北新能源科技有限公司 Method for rapidly detecting remaining use times of battery
CN105021995A (en) * 2015-07-28 2015-11-04 王树华 Portable intelligent storage battery parameter test method and tester
CN105259420A (en) * 2015-11-02 2016-01-20 南车株洲电力机车有限公司 Method and device for measuring internal resistance of energy storage power supply
CN106291385A (en) * 2016-08-26 2017-01-04 北京普华亿能风电技术有限公司 A kind of lead-acid accumulator remaining capacity calculation method
CN107548712A (en) * 2016-06-30 2018-01-09 苏州宝时得电动工具有限公司 The charge control method and device of a kind of hay mover
CN107797070A (en) * 2017-10-24 2018-03-13 北京普莱德新能源电池科技有限公司 The appraisal procedure and apparatus for evaluating of electrokinetic cell health status
CN108508376A (en) * 2018-05-28 2018-09-07 北京新能源汽车股份有限公司 Method, device and system for determining service life of lithium battery
CN110828917A (en) * 2019-11-13 2020-02-21 海南电网有限责任公司电力科学研究院 Storage battery online sulfur removal system and method based on variable frequency signals
CN112041695A (en) * 2018-05-07 2020-12-04 三菱电机株式会社 Battery degradation detection device and battery temperature estimation device

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CN104145190A (en) * 2012-02-29 2014-11-12 Nec能源元器件株式会社 Battery pack and method for calculating electric energy of battery pack
US10670660B2 (en) 2012-02-29 2020-06-02 Envision Aesc Energy Devices Ltd. Battery pack and method for calculating electric energy of battery pack
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CN104345281A (en) * 2014-10-11 2015-02-11 苏州克兰兹电子科技有限公司 Battery management system of electric automobile
CN105005001A (en) * 2015-06-26 2015-10-28 江苏北新能源科技有限公司 Method for rapidly detecting remaining use times of battery
CN105005001B (en) * 2015-06-26 2018-04-24 江苏北新能源科技有限公司 A kind of method of quick detection remaining battery access times
CN105021995B (en) * 2015-07-28 2018-04-06 王树华 Portable intelligent accumulator parameter method of testing and tester
CN105021995A (en) * 2015-07-28 2015-11-04 王树华 Portable intelligent storage battery parameter test method and tester
CN105259420B (en) * 2015-11-02 2018-08-03 南车株洲电力机车有限公司 A kind of measurement method and device of accumulation power supply internal resistance
CN105259420A (en) * 2015-11-02 2016-01-20 南车株洲电力机车有限公司 Method and device for measuring internal resistance of energy storage power supply
CN107548712A (en) * 2016-06-30 2018-01-09 苏州宝时得电动工具有限公司 The charge control method and device of a kind of hay mover
CN106291385A (en) * 2016-08-26 2017-01-04 北京普华亿能风电技术有限公司 A kind of lead-acid accumulator remaining capacity calculation method
CN107797070A (en) * 2017-10-24 2018-03-13 北京普莱德新能源电池科技有限公司 The appraisal procedure and apparatus for evaluating of electrokinetic cell health status
CN112041695A (en) * 2018-05-07 2020-12-04 三菱电机株式会社 Battery degradation detection device and battery temperature estimation device
CN112041695B (en) * 2018-05-07 2023-09-29 三菱电机株式会社 Battery degradation detection device and battery temperature estimation device
CN108508376A (en) * 2018-05-28 2018-09-07 北京新能源汽车股份有限公司 Method, device and system for determining service life of lithium battery
CN110828917A (en) * 2019-11-13 2020-02-21 海南电网有限责任公司电力科学研究院 Storage battery online sulfur removal system and method based on variable frequency signals

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