CN203056653U - Lead-acid storage battery management system - Google Patents
Lead-acid storage battery management system Download PDFInfo
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- CN203056653U CN203056653U CN 201320071843 CN201320071843U CN203056653U CN 203056653 U CN203056653 U CN 203056653U CN 201320071843 CN201320071843 CN 201320071843 CN 201320071843 U CN201320071843 U CN 201320071843U CN 203056653 U CN203056653 U CN 203056653U
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- 239000002253 acid Substances 0.000 title claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims description 33
- 239000000178 monomer Substances 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 10
- 238000004146 energy storage Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to a lead-acid storage battery management system which comprises a monitoring part, an input and output control unit and a central processor. The monitoring part is connected with each monitoring point of a storage battery, and a collected monitoring signal is outputted to the central processor. The input and output control unit is connected with the central processor and is connected with a charging and discharging device of the lead-acid storage battery at the same time. The monitoring part comprises a voltage monitoring unit, a current monitoring unit and a temperature monitoring unit, wherein the voltage monitoring unit, the current monitoring unit and the temperature monitoring unit respectively receive detection signals of the voltage, current and temperature of the storage battery and output the signals to the central processor. According to the lead-acid storage battery management system, the storage battery can be effectively protected, the service life of the storage battery is prolonged, the reliable and stable operation of the lead-acid storage battery is ensured, the cost is low, the structure is simple, the operation is stable, and the lead-acid storage battery management system can be widely applied to an energy storage power station and related fields.
Description
Technical field
The utility model relates to the battery management technology in a kind of energy-accumulating power station field, specifically a kind of lead acid accumulator management system.
Background technology
The lead acid accumulator management system is responsible for the collection of battery tension, temperature and charging and discharging currents, the control of high-low voltage relay, the functions such as balanced management of the monitoring of battery system and failure diagnosis and single battery are that lead acid accumulator is used an indispensable part.
The lead acid accumulator technical development has been tending towards ripe to the present, and cost is low, and is safe, and is stable, can export bigger electric current and power, is applicable to the energy storage needs of different field.But along with wearing out of storage battery, unsettled change can appear in its every performance index, can occur volume change in various degree between each cell batteries, and battery tension is unbalanced in the running.So lead acid accumulator needs equally a kind of management system, monitors battery condition in real time, protect not super-charge super-discharge of storage battery, prolongation storage battery shelf life.
Lead acid accumulator in the market mostly is independent storage battery, does not comprise management system, can't carry out real-time monitoring and monitoring, is unfavorable for maintenance and the good operation of storage battery.
The utility model content
At the weak point that can't carry out real-time monitoring and monitoring in the prior art to lead acid accumulator, the technical problems to be solved in the utility model provides a kind ofly can monitor the storage battery running status in real time, the lead acid accumulator management system that problems occured in operation is in time analyzed and monitored.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The utility model lead acid accumulator management system has monitoring part, input and output control unit and central processing unit, and wherein monitoring part is connected with each monitoring point of storage battery, and the monitor signal that collects exports central processing unit to; Input and output control unit links to each other with central processing unit, connects the charge and discharge device of lead acid accumulator simultaneously.
Monitoring part comprises voltage monitoring unit, current monitoring unit and temperature monitoring unit, and wherein voltage monitoring unit, current monitoring unit and the temperature monitoring unit detection signal that receives voltage, electric current and the temperature of storage battery respectively exports central processing unit to.
The utility model also has the detection of electrical leakage unit, and it carries out communication with central processing unit and is connected, and outside, detection of electrical leakage unit is connected on the earth connection that battery cell case and the earth draw, and innerly links to each other with central processing unit.
The utility model also has balance module, and the outside links to each other with lead acid accumulator monomer voltage end, and inside is connected with central processing unit hardware.
The utlity model has following beneficial effect and advantage:
1. the utility model is gathered voltage, temperature, the current information of storage battery by the monitoring part; computing by central processing unit; monitor the running status of storage battery and system in real time; and realize real-time regulation and control; mutual by charging system and total system analyzed timely and monitored the problem that occurs in the process, can effectively protect storage battery; delay the life of storage battery, guarantee the reliable and operation stably of lead acid accumulator.
The integrated collection of the utility model and control function in one, with low cost, simple in structure, stable, can be widely used in energy-accumulating power station and association area.
Description of drawings
Fig. 1 is the utility model structured flowchart;
The method flow diagram that Fig. 2 adopts for the utility model.
Embodiment
Below in conjunction with Figure of description the utility model is further elaborated.
As shown in Figure 1, the utility model lead acid accumulator management system has monitoring part, input and output control unit and central processing unit, and wherein monitoring part is connected with the monitoring point of storage battery, and the monitor signal that collects exports central processing unit to; Input and output control unit links to each other with central processing unit, and input and output control unit connects the battery on-site signal.Input and output control unit adopts relay control circuit, lead accumulator is discharged and recharged operation implement control.
In the present embodiment, monitoring part comprises voltage monitoring unit, current monitoring unit and temperature monitoring unit, and wherein voltage monitoring unit, current monitoring unit and the temperature monitoring unit detection signal that receives voltage, electric current and the temperature of storage battery respectively exports central processing unit to; Outside, current monitoring unit links to each other with the current inductor spare of on-the-spot battery charging and discharging circuit, and inside is carried out communication with central processing unit (present embodiment employing single-chip microcomputer) and is connected.
Voltage acquisition: this management system is gathered the voltage of every single battery.Because the lead acid accumulator volume is bigger, its discharging current is bigger again simultaneously, therefore, is two sample line of every storage battery configuration, positive and negative each one.After hardware circuit switches this battery tension dividing potential drop, enter chip, by importing single-chip microcomputer after analog-to-digital conversion and the output digital information, calculate monomer voltage by single-chip microcomputer, monomer voltage is added up obtain total voltage simultaneously.
Current acquisition: current acquisition can be monitored the current charging and discharging state of storage battery, and the size of charging and discharging currents according to battery condition, is in time adjusted and discharged and recharged the maximum current limit value with the protection storage battery.The accuracy of storage battery collection directly has influence on the calculating of the state of storage battery simultaneously.The utility model is voltage signal by storage battery transducer and related hardware circuit with current conversion, and digital information is imported single-chip microcomputer, calculates current value by single-chip microcomputer.
Temperature acquisition: the temperature of gathering every single battery by the multiplex temperature collection passage; Introduce storage battery and ambient temperature by temperature sensor, through analog-to-digital conversion digital quantity is imported single-chip microcomputer, calculate current temperature value by single-chip microcomputer.
The utility model also has the detection of electrical leakage unit, and it carries out communication with central processing unit and is connected, and outside, detection of electrical leakage unit is connected on the earth connection that battery cell case and the earth draw, and innerly links to each other with central processing unit.Whether leakage current detect leaks electricity for detection of storage battery.
The utility model also has balance module, and the outside links to each other with lead acid accumulator monomer voltage end, and inside is connected with central processing unit, is used for the maintenance of storage battery.The long-term decay of using storage battery can cause battery capacity, and the inconsistency between each cell.This module can monitoring modular voltage be higher than the lead acid accumulator monomer monomer of average, and to its extra discharge; Be lower than the lead acid accumulator monomer monomer of average, and to its additional charge, thereby reach balanced purpose.
Monomer voltage detection, temperature detection, detection of electrical leakage and the charging and discharging currents that the utility model lead acid accumulator management system mainly is responsible for lead-acid battery detects and to unbalanced control the between the monomer voltage, to play balanced each monomer voltage, the effect of extending battery life.In addition the lead-acid battery management system in case of emergency (battery temperature is too high or charging current is too high) cut off the effect of the charging and discharging circuit of charge and discharge device by relay control.
Described central processing unit inside is equipped with the lead acid accumulator hypervisor, and it controls step as shown in Figure 2:
Start, system initialization;
Gather the monitor signal of lead acid accumulator by the monitoring part;
Above-mentioned monitor signal is carried out filtering, and the monitor signal that obtains removing behind the noise participates in computing;
Monitor signal behind the above-mentioned removal noise is compared with corresponding alarm settings signal, judged whether abnormal signal, if abnormal signal is arranged then report to the police.
The calculating that relatively comprises analog quantity of abnormal signal, the processing of control logic, the calculating of system mode etc. are all carried out in central processing unit.Balanced processing is to send and central processing unit by the on-the-spot battery cell voltage that balance module will be gathered, finishes equalization problem between monomer voltage by central processing unit, and the bq76l536A chip of balance module employing TI is built hardware circuit.
The monitor signal that described monitoring part is gathered lead acid accumulator passes through voltage monitoring unit respectively, current monitoring unit and temperature monitoring unit are realized, wherein voltage monitoring unit has the plurality of voltages sense channel, gather the voltage of every single battery respectively, every lead acid accumulator by two just, negative sample line, after switching this battery tension dividing potential drop, hardware circuit enters mould/number conversion module, by mould/number conversion module conversion digital quantity is imported central processing unit, by central processing unit computational analysis monomer voltage, add up by monomer voltage again and obtain total voltage.
Described abnormal signal comprises: charging overcurrent, over-charging of battery or mistake are put, battery temperature is too high or too low and battery drain.Determination methods is that actual detected value and set point compare, and judges whether to point out warning message.
Also have the equilibrium treatment step in the method that the utility model adopts, if monitoring module monitors to the voltage of certain cell batteries be higher than average, then this cell batteries is discharged, consistent with average until this cell batteries.
Each monitoring means is responsible for detecting corresponding lead-acid battery voltage, charging and discharging currents, the interior temperature of battery etc. in the native system, send then with central processing unit and carry out analog quantity conversion and in addition filtering, obtain measured value, the alarm setting value with correspondence compares then, judges whether to send warning message.The a plurality of monomer voltages of lead-acid battery to monitoring compare simultaneously, need to judge whether equilibrium, implement balance policy by central processing unit.In case of emergency disconnect charging and discharging circuit by the CPU starting relay.
Claims (4)
1. lead acid accumulator management system is characterized in that: have monitoring part, input and output control unit and central processing unit, wherein monitoring part is connected with each monitoring point of storage battery, and the monitor signal that collects exports central processing unit to; Input and output control unit links to each other with central processing unit, connects the charge and discharge device of lead acid accumulator simultaneously.
2. by the described lead acid accumulator management system of claim 1, it is characterized in that: monitoring part comprises voltage monitoring unit, current monitoring unit and temperature monitoring unit, and wherein voltage monitoring unit, current monitoring unit and the temperature monitoring unit detection signal that receives voltage, electric current and the temperature of storage battery respectively exports central processing unit to.
3. by the described lead acid accumulator management system of claim 1, it is characterized in that: also have the detection of electrical leakage unit, it carries out communication with central processing unit and is connected, and outside, detection of electrical leakage unit is connected on the earth connection that battery cell case and the earth draw, and innerly links to each other with central processing unit.
4. by the described lead acid accumulator management system of claim 1, it is characterized in that: also have balance module, the outside links to each other with lead acid accumulator monomer voltage end, and inside is connected with central processing unit hardware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071843 CN203056653U (en) | 2013-02-07 | 2013-02-07 | Lead-acid storage battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071843 CN203056653U (en) | 2013-02-07 | 2013-02-07 | Lead-acid storage battery management system |
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| Publication Number | Publication Date |
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| CN203056653U true CN203056653U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320071843 Expired - Fee Related CN203056653U (en) | 2013-02-07 | 2013-02-07 | Lead-acid storage battery management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986195A (en) * | 2013-02-07 | 2014-08-13 | 中国科学院金属研究所 | Lead-acid-storage-battery management system |
| CN112505553A (en) * | 2020-12-31 | 2021-03-16 | 国网河南省电力公司南阳供电公司 | Online monitoring system for lead-acid storage battery |
-
2013
- 2013-02-07 CN CN 201320071843 patent/CN203056653U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986195A (en) * | 2013-02-07 | 2014-08-13 | 中国科学院金属研究所 | Lead-acid-storage-battery management system |
| CN112505553A (en) * | 2020-12-31 | 2021-03-16 | 国网河南省电力公司南阳供电公司 | Online monitoring system for lead-acid storage battery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20210207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |