CN108169693A - A kind of accumulator group online evaluation detecting system - Google Patents
A kind of accumulator group online evaluation detecting system Download PDFInfo
- Publication number
- CN108169693A CN108169693A CN201810236130.3A CN201810236130A CN108169693A CN 108169693 A CN108169693 A CN 108169693A CN 201810236130 A CN201810236130 A CN 201810236130A CN 108169693 A CN108169693 A CN 108169693A
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- accumulator
- internal resistance
- detecting
- accumulator group
- detection module
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of accumulator group online evaluation detecting systems, including monitoring host, remote data management server, data communication network, for detecting the voltage detection module of accumulator battery voltage, for detecting the current detection module of battery current, for detecting the internal resistance measurement system of each accumulator internal resistance in accumulator group, for detecting the system for detecting temperature of each battery temp in accumulator group and the power module for providing electric energy, wherein, monitor host and remote data management server, voltage detection module, system for detecting temperature, current detection module and internal resistance measurement system are connected, data communication network is connected with remote data management server, the system can realize the voltage and current to accumulator group, the internal resistance of each accumulator and temperature carry out on-line checking.
Description
Technical field
The invention belongs to ice storing time fields, are related to a kind of accumulator group online evaluation detecting system.
Background technology
The essentially valve controlled sealed lead-acid accumulator that country's power grid accumulator group uses now, the battery is due to closed envelope
Dress, without acid liquid and water, without adjusting density of electrolyte, therefore the concern obtained in use is less, therefore instead
It easily causes battery failures or even more serious accident occurs.
" indiscriminate dam station " power grid accident occurred in the net of south in 2013, is also due to accumulator and accumulator in Fig. 1-1 occurs
Open fault is stopped transport, and then power grid accident is caused constantly to expand so as to cause protection in station.
The high reliability request run from power-supply system, all types of battery monitoring systems are also being widely used.It is but different
Test pattern is also different to the performance condition reflection of accumulator.Years of researches and with show internal resistance detection be at present most
For one of reliable test mode.And the different failure modes of accumulator are also different to reporting situations for internal resistance, understand electric power storage
The internal resistance in pond and the relationship of various failure modes reasonably analyze the internal resistance data of analysing valve control type lead-acid accumulator battery, are conducive to more preferable
Ground is detected and safeguards to accumulator.
In recent years, due to the rise in price of raw material.Domestic many analysing valve control type lead-acid accumulator battery producers employ many new lifes
Production. art.New variation is also had occurred to the data analysis of new process accumulator internal resistance therefrom.Reasonably select such electric power storage
Pond internal resistance data base, to judging that analysing valve control type lead-acid accumulator battery performance is very helpful, reasonably with internal resistance data maintenance
Reservoir, playing the role of very big, maximum for acquisition safety benefit and economic benefit to the service life for extending accumulator has very
Important meaning.
However accumulator is after the use of certain time, Chang Yiyin active materials come off, grid corrosion or pole plate deformation,
The factors such as vulcanization, and continuously decrease capacity until failure.So finding out behindhand battery, and handled, to eliminate
Hidden danger is exactly the work of vast battery service personnel.Come us in the past few decades and use anti-acid flame-proof formula lead acid storage battery always
Pond has accumulated certain experiences.It is safeguarded according to accumulator group profile book, is needed while service lifetime of accumulator is extended
A large amount of battery service cost is put into, and the requirement only in accordance with specification is safeguarded, then is saved when the service life is sacrificed
A large amount of maintenance cost.Calculating analysis by relevant accumulator Life cycle cost, it is believed that if being said according to accumulator
Bright book is safeguarded that every group of battery average annual cost in whole life cycle will increase about 10,000 yuan, account for what battery was worth in itself
1/4.Therefore we continue to safeguard accumulator in strict accordance with code requirement.For practical O＆M, accumulator is determined
It is huge to examine workload, can not often carry out, so if battery malfunction is occurred exactly between periodic inspection twice, it will straight
Connect the safety and stability for influencing power grid.The failure being happened between periodic inspection twice is much, and the problem is all
It is very serious.So the periodic inspection pattern performed now actually exists some shortcomings, this is also our power grid maintenances
One of urgent problem in work.But since such battery maintenance method is cumbersome, at present by with exempt from plus water, installation spirit
It is living, floor space is small and does not form the valve controlled sealed lead-acid accumulator of acid mist (VRLA) is replaced.In recent years due to valve-regulated
Sealed lead acid storage battery is widely used, and the producer of domestic production VRLA is more and more, and production scale and technical merit are irregular not
Together, problem is many, and many new problems being encountered in the past occur in the VRLA batteries that the beginning of the nineties, the country used, but since it is
New technology, some failure causes are not yet grasped completely.Therefore effective on-line monitoring management and appraisal procedure are only set up,
It can just avoid causing major hidden danger.It monitors the stability of accumulator and the actual capacity pair of load can be supplied in discharge process
Ensure that the safe operation of power equipment has a very important significance.
The external accumulator online evaluation detecting system of recent year has development, such as U.S. alber and South Korea
Powerton have developed rapidly, technology maturation, only to internal resistance on-line testing.The country, if Shenzhen is extra-high, apparatus function is relatively simple
It is single, only realize the monitoring of accumulator battery voltage, electric current etc., the Monitored System of Industrial Storage Cell in non-real meaning, without internal resistance, temperature
Test function is only monitored charged state, and monitoring current, can not play due effect at all, make on-line monitoring number
According to losing meaning.
Invention content
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art, provides a kind of accumulator group online evaluation detection
System, the system can realize that the voltage and current to accumulator group, the internal resistance of each accumulator and temperature carry out on-line checking.
In order to achieve the above objectives, accumulator group online evaluation detecting system of the present invention includes monitoring host, long-range
Data management server, data communication network, for detect accumulator battery voltage voltage detection module, for detecting accumulator
Group electric current current detection module, for detect each accumulator internal resistance in accumulator group internal resistance measurement system, for detect store
The system for detecting temperature of each battery temp and the power module for providing electric energy in battery pack, wherein, monitoring host with
Remote data management server, voltage detection module, system for detecting temperature, current detection module and internal resistance measurement system are connected
It connects, data communication network is connected with remote data management server.
The internal resistance measurement system includes microcontroller, filter circuit, peak detection circuit, CAN bus communication unit, A/D
Modular converter, amplifying circuit and the excitation source signal generating unit for applying pumping signal to accumulator, the output of accumulator
End is connected through amplifying circuit, filter circuit, peak detection circuit and A/D modular converters with the input terminal of microcontroller, microcontroller
Output terminal through CAN bus communication unit with monitoring host be connected.
Internal resistance measurement system further includes the internal resistance display being connected with microcontroller.
The voltage detection module includes polar capacitor, capacitance, first resistor, second resistance, potentiometer, operation amplifier
Device, the first diode, the second diode, CD4066 bilateral analog switch and host scm；
The anode of accumulator group is connected with one end of one end of capacitance, the anode of polarized capacitance and first resistor, stores
The cathode of battery pack, the other end of capacitance, the cathode of polarized capacitance and second resistance one end be grounded, first resistor it is another
One end is connected with the signal end of potentiometer, and the other end of second resistance is connected with the ground terminal of potentiometer, the work of potentiometer
Moved end is connected with the in-phase input end of operational amplifier, the output terminal of operational amplifier and the anti-phase input of operational amplifier
The input terminal at end, the anode of the first diode, the cathode of the second diode and CD4066 bilateral analog switch is connected, and the one or two
The cathode of pole pipe is connected with high-voltage power supply, the plus earth of the second diode, the output terminal of CD4066 bilateral analog switch and master
The input terminal of microcontroller is connected, and the output terminal of host scm is connected with monitoring the input terminal of host.
Voltage detection module further includes the voltage display being connected with host scm.
The current detection module uses alterating and direct current flow sensor.
The invention has the advantages that：
For accumulator group online evaluation detecting system of the present invention in concrete operations, monitoring host passes through voltage detecting
Module, current detection module, internal resistance measurement system and system for detecting temperature detect the voltage of accumulator group, accumulator group respectively
In electric current, accumulator group in the internal resistance of each accumulator and accumulator group each accumulator temperature, detection is then obtained into data hair
Send to remote data management server, the internal resistance of voltage and current, each accumulator so as to fulfill accumulator group and temperature
Line detects, and the integrated management for accumulator group provides foundation, simple in structure, easy to operate, and practicability is extremely strong.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the circuit diagram of voltage detection module 1 in the present invention；
Fig. 3 is the circuit diagram of internal resistance measurement system 3 in the present invention.
Wherein, 1 it is voltage detection module, 2 be current detection module, 3 be internal resistance measurement system, 4 is remote data management
Server, 5 be data communication network, 6 be power module, 7 be monitoring host, 8 be excitation source signal generating unit, 9 be amplification
Circuit, 10 be filter circuit, 11 be peak detection circuit, 12 be A/D modular converters, 13 be microcontroller, 14 be CAN bus communication
Unit, 15 are internal resistance display.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, accumulator group online evaluation detecting system of the present invention includes monitoring host 7, teledata pipe
Reason server 4, data communication network 5, for detect accumulator battery voltage voltage detection module 1, for detecting accumulator group
The current detection module 2 of electric current, for detect each accumulator internal resistance in accumulator group internal resistance measurement system 3, for detect store
The system for detecting temperature of each battery temp and the power module 6 for providing electric energy in battery pack, wherein, monitor host 7
With remote data management server 4, voltage detection module 1, system for detecting temperature, current detection module 2 and internal resistance measurement system 3
It is connected, data communication network 5 is connected with remote data management server 4.Wherein, the current detection module 2 is using friendship
DC current sensor.
With reference to figure 3, it is total that the internal resistance measurement system 3 includes microcontroller 13, filter circuit 10, peak detection circuit 11, CAN
Line communication unit 14, A/D modular converters 12, amplifying circuit 9 and the excitation source signal hair for applying pumping signal to accumulator
Raw unit 8, the output terminal of accumulator through amplifying circuit 9, filter circuit 10, peak detection circuit 11 and A/D modular converters 12 with
The input terminal of microcontroller 13 is connected, and the output terminal of microcontroller 13 is connected through CAN bus communication unit 14 with monitoring host 7.
Wherein, internal resistance measurement system 3 further includes the internal resistance display 15 being connected with microcontroller 13.
With reference to figure 2, the voltage detection module 1 includes polar capacitor C1, capacitance C2/ first resistors R1, second resistance
R2, potentiometer G, operational amplifier T, the first diode D1, second diode D2, CD4066 bilateral analog switch W and main monolithic
Machine；The anode of accumulator group is connected with one end, the anode of polarized capacitance C1 and one end of first resistor R1 of capacitance C2, stores
The cathode of battery pack, the other end of capacitance C2, the cathode of polarized capacitance C1 and second resistance R2 one end be grounded, the first electricity
The other end of resistance R1 is connected with the signal end of potentiometer G, and the other end of second resistance R2 is connected with the ground terminal of potentiometer G
It connects, the movable end of potentiometer G is connected with the in-phase input end of operational amplifier T, and output terminal and the operation of operational amplifier T are put
Inverting input, the anode of the first diode D1, the cathode of the second diode D2 and the CD4066 bilateral analog switch W of big device T
Input terminal be connected, the cathode of the first diode D1 is connected with high-voltage power supply VCC, the plus earth of the second diode D2,
The output terminal of CD4066 bilateral analog switch W is connected with the input terminal of host scm 13, the output terminal of host scm and monitoring
The input terminal of host 7 is connected, wherein, voltage detection module 1 further includes the voltage display being connected with host scm.
The present invention specific work process be：
Current detection module 2 detects the current information of accumulator group in real time, and system for detecting temperature detects each accumulator in real time
Temperature information, the information of voltage of the detection accumulator group in real time of voltage detection module 1, internal resistance measurement system 3 detects each storage in real time
The internal resistance information of battery, temperature information, the storage that monitoring host 7 will detect the obtained current information of accumulator group, each accumulator
The internal resistance information of the information of voltage of battery pack and each accumulator is sent in remote data management server 4, remote data management
Server 4 stores the data received.
It should be noted that the present invention is effectively solved using the internal resistance of DC internal resistance on-line testing technique detection accumulator
It the problem of online, safe efficient measurement accumulator internal resistance process, need not be by charger and accumulator in detection process
Group disconnects, and does not influence straight-flow system normal operation, and detect not by charger ripple and external environmental interference, DATA REASONING is more
Accurately, stablize.
In addition, the invention also includes for detecting the voltage detecting circuit of each battery tension, floating charge is in accumulator
The voltage of each accumulator of automatic detecting during state, and carry out stage for the accumulator less than setting float charge voltage and fill
Electricity, while monomer electric discharge is carried out to release overcharging state to overcharging accumulator, ensure electric voltage equalization during accumulator group floating charge, make
Each accumulator is all in optimum activity state.In addition, positive and negative arteries and veins is provided to the accumulator that performance falls behind automatically under floating charge state
It rushes electric current to be activated online, activates crystallization and the sulfuric acid precipitation of internal storage battery electrode plate, prevent accumulator because of long-term floating charge
And lead to sulfation, eliminate the security risk as caused by inside.
Claims (6)
1. a kind of accumulator group online evaluation detecting system, which is characterized in that including monitoring host (7), remote data management clothes
Business device (4), data communication network (5), for detecting the voltage detection module of accumulator battery voltage (1), for detecting accumulator
The current detection module (2) of group electric current, for detecting the internal resistance measurement system (3) of each accumulator internal resistance in accumulator group, be used for
Detect accumulator group in each battery temp system for detecting temperature and for providing the power module of electric energy (6), wherein, prison
Survey host (7) and remote data management server (4), voltage detection module (1), system for detecting temperature, current detection module (2)
And internal resistance measurement system (3) is connected, data communication network (5) is connected with remote data management server (4).
2. accumulator group online evaluation detecting system according to claim 1, which is characterized in that the internal resistance measurement system
(3) including microcontroller (13), filter circuit (10), peak detection circuit (11), CAN bus communication unit (14), A/D moduluss of conversion
Block (12), amplifying circuit (9) and the excitation source signal generating unit (8) for applying pumping signal to accumulator, accumulator
Output terminal is through amplifying circuit (9), filter circuit (10), peak detection circuit (11) and A/D modular converters (12) and microcontroller
(13) input terminal is connected, and the output terminal of microcontroller (13) is connected through CAN bus communication unit (14) with monitoring host (7)
It connects.
3. accumulator group online evaluation detecting system according to claim 2, which is characterized in that internal resistance measurement system (3)
Further include the internal resistance display (15) being connected with microcontroller (13).
4. accumulator group online evaluation detecting system according to claim 2, which is characterized in that the voltage detection module
(1) include polar capacitor (C1), capacitance (C2), first resistor (R1), second resistance (R2), potentiometer (G), operational amplifier
(T), the first diode (D1), the second diode (D2), CD4066 bilateral analog switch (W) and host scm；
The anode of accumulator group and one end phase of one end of capacitance (C2), the anode of polarized capacitance (C1) and first resistor (R1)
Connection, the cathode of accumulator group, the other end of capacitance (C2), the cathode of polarized capacitance (C1) and second resistance (R2) one end
It is grounded, the other end of first resistor (R1) is connected with the signal end of potentiometer (G), the other end and the electricity of second resistance (R2)
The ground terminal of position device (G) is connected, and the movable end of potentiometer (G) is connected with the in-phase input end of operational amplifier (T), operation
The output terminal of amplifier (T) and the inverting input of operational amplifier (T), the anode of the first diode (D1), the second diode
(D2) cathode and the input terminal of CD4066 bilateral analog switch (W) is connected, the cathode and high-voltage power supply of the first diode (D1)
(VCC) it is connected, the plus earth of the second diode (D2), the output terminal and host scm of CD4066 bilateral analog switch (W)
(13) input terminal is connected, and the output terminal of host scm is connected with the input terminal of monitoring host (7).
5. accumulator group online evaluation detecting system according to claim 4, which is characterized in that voltage detection module (1)
Further include the voltage display being connected with host scm.
6. accumulator group online evaluation detecting system according to claim 4, which is characterized in that the current detection module
(2) using alterating and direct current flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810236130.3A CN108169693A (en) | 2018-03-21 | 2018-03-21 | A kind of accumulator group online evaluation detecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810236130.3A CN108169693A (en) | 2018-03-21 | 2018-03-21 | A kind of accumulator group online evaluation detecting system |
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| Publication Number | Publication Date |
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| CN108169693A true CN108169693A (en) | 2018-06-15 |
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| CN201810236130.3A Pending CN108169693A (en) | 2018-03-21 | 2018-03-21 | A kind of accumulator group online evaluation detecting system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627776A (en) * | 2018-06-28 | 2018-10-09 | 苏州市昌美新能源科技有限公司 | A kind of life of storage battery assessment system of photovoltaic generating system |
| CN109507607A (en) * | 2018-10-29 | 2019-03-22 | 国家电网有限公司 | Portable storage battery group voltage acquisition instrument |
| CN110716147A (en) * | 2019-11-14 | 2020-01-21 | 云蜂数智物联网有限公司 | Method and device for measuring internal resistance of battery pack |
| CN112033575A (en) * | 2020-06-29 | 2020-12-04 | 国网四川省电力公司电力科学研究院 | On-site calibration method and device for on-line monitoring system of power valve control storage battery pack |
| CN112332480A (en) * | 2020-10-23 | 2021-02-05 | 国网江苏省电力有限公司扬州供电分公司 | Distribution network storage battery pack online monitoring device |
| CN112383104A (en) * | 2020-11-02 | 2021-02-19 | 中国石油化工集团有限公司 | Storage battery charging management circuit, device and system |
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| CN112332480A (en) * | 2020-10-23 | 2021-02-05 | 国网江苏省电力有限公司扬州供电分公司 | Distribution network storage battery pack online monitoring device |
| CN112383104A (en) * | 2020-11-02 | 2021-02-19 | 中国石油化工集团有限公司 | Storage battery charging management circuit, device and system |
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Application publication date: 20180615 |