CN206132951U - Transformer substation storage cell state monitoring system - Google Patents
Transformer substation storage cell state monitoring system Download PDFInfo
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- CN206132951U CN206132951U CN201621153506.7U CN201621153506U CN206132951U CN 206132951 U CN206132951 U CN 206132951U CN 201621153506 U CN201621153506 U CN 201621153506U CN 206132951 U CN206132951 U CN 206132951U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 210000000352 storage cell Anatomy 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 16
- 230000005669 field effect Effects 0.000 claims description 11
- 230000003993 interaction Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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- Tests Of Electric Status Of Batteries (AREA)
Abstract
The utility model provides a transformer substation storage cell state monitoring system, it includes battery, signal processing unit and control center, accumulator output and signal processing unit are connected, signal processing unit output is connected with control center, signal processing unit includes that host system reaches rather than the internal resistance detection module who is connected, internal resistance detection module includes intelligent load unit and peak detection circuit, intelligence load unit be in the positive and negative both ends of battery, intelligence load unit control termination host system, the accumulator output signal is through signal filtering amplification unit and peak detection circuit input connection, peak detection circuit output is connected with host system through a AD converting circuit. Adopt the technical scheme of the utility model on line measurement storage battery internal resistance 's under the strong jamming environment measurement accuracy has been improved.
Description
Technical field
This utility model belongs to power system device, and in particular to a kind of storage batteries of transformer substation condition monitoring system.
Background technology
Accumulator acts as reserve power as the core component of DC power system, is power system normal work
Last line of defense.The accumulator monitoring equipment and battery condition analytical equipment for using both at home and abroad at present is all with accumulator
Internal resistance is leading indicator, and transformer station all adopts large-capacity battery, and its internal resistance is extremely small, be tens to hundreds of micro-ohms, or even
The tightness of joint all can be impacted to measurement result, and accumulator has certain charging ripple to do when working online
Disturb, thus make traditional resistive measurement be difficult to reach measurement requirement, electric power storage should be carried out using micro- resistance Technology of Precision Measurement
Pond internal resistance measurement is.
The content of the invention
The purpose of this utility model is to provide a kind of storage batteries of transformer substation condition monitoring system.
For achieving the above object, this utility model is employed the following technical solutions：A kind of storage batteries of transformer substation status monitoring system
System, it is characterised in that：Including accumulator, signal processing unit and control centre；The accumulator output and signal processing unit
Connection；The signal processing unit output is connected with control centre；The signal processing unit include main control module and with its phase
The internal resistance detection module of connection；Internal resistance detection module includes intelligent load unit and peak detection circuit；The intelligent load list
Unit is at the positive and negative two ends of the accumulator；Intelligent load unit control termination main control module；Accumulator output voltage, current signal Jing
Signal amplifies filter unit and is connected with peak detection circuit input；The peak detection circuit output A/D change-over circuits of Jing mono- with
Main control module connects.
In the embodiment of this utility model one, also include man-machine interaction unit, the storage list being connected with the control centre
Unit.
In the embodiment of this utility model one, also include the wireless telecommunications control unit being connected with the control centre, institute
Control centre is stated by wireless telecommunications control unit and upper machine communication.
In the embodiment of this utility model one, the intelligent load unit includes a field effect transistor, diverter, load and just
String ac signal circuit；There is circuit with sinusoidal ac signal and be connected in the fet gate；The field effect transistor leakage
Pole is connected with diverter one end, and the diverter other end is connected with battery positive voltage；The field effect transistor source electrode connects with load one end
Connect, the load other end is connected with battery terminal negative.
Preferably, it is ICL8038 generators that the sinusoidal ac signal occurs circuit.
In the embodiment of this utility model one, also including an alarm module being connected with the control centre.
Compared with prior art, this utility model has advantages below：
（1）The measurement of on-line measurement accumulator internal resistance under strong interference environment is improve using the technical solution of the utility model
Precision；
（2）The parameter and status data of the multiple batteries monomer batteries of energy on-line real time monitoring（Voltage, electric current, internal resistance, temperature
Degree, charging and discharging state etc.）, show test data and curve in test in real time；
（3）Break down when system diagnostics goes out to store rechargable battery, alert process is carried out automatically；
（4）The information such as the service data and failure condition of accumulator are stored in data base by system automatically, by the system
Human-computer interaction interface, user can check the real time data of accumulator, can be added as needed on or delete monitored set of cells
With cell and relevant information.
Description of the drawings
Fig. 1 is cardinal principle figure of the present utility model.
Fig. 2 is the theory diagram of internal resistance detection module.
Fig. 3 is the theory diagram of intelligent load unit.
Fig. 4 is the schematic diagram of this utility model specific embodiment.
Specific embodiment
Below in conjunction with the accompanying drawings explanation is further explained to this utility model with specific embodiment.
Referring to Fig. 1, this utility model provides a kind of storage batteries of transformer substation condition monitoring system, and it includes accumulator, signal
Processing unit and control centre；The accumulator output is connected with signal processing unit；The signal processing unit output and control
Center connection processed；The signal processing unit includes main control module and coupled internal resistance detection module；Internal resistance detection mould
Block includes intelligent load unit and peak detection circuit；The intelligent load unit is at the positive and negative two ends of the accumulator；Intelligence is negative
Carrier unit control termination main control module；Accumulator output voltage, current signal Jing signals amplify filter unit and peakvalue's checking electricity
Road input connection；The peak detection circuit output A/D change-over circuits of Jing mono- are connected with main control module.The master of internal resistance detection module
Schematic diagram is wanted referring to Fig. 2.
This utility model uses using four terminal connected modes to realize AC impedence method, by measuring accumulator
Output voltage, electric current can measure accumulator internal resistance.The formula derived by prior art：It can be seen that, give
Determine resistance R, internal resistance of cell r is only related with battery and the crest voltage UR at precision resistance two ends, Ur, the phase place with sinusoidal signal
It is unrelated.
In the embodiment of this utility model one, also include man-machine interaction unit, the storage list being connected with the control centre
Unit.Memory element is used to store the information such as the service data and failure condition of accumulator.
In the embodiment of this utility model one, also include the wireless telecommunications control unit being connected with the control centre, institute
Control centre is stated by wireless telecommunications control unit and upper machine communication.
In the embodiment of this utility model one, also including an alarm module being connected with the control centre.When system is examined
Break and storage rechargable battery and break down, alert process is carried out automatically；
In the embodiment of this utility model one, the intelligent load unit includes a field effect transistor, diverter, load and just
String ac signal circuit；There is circuit with sinusoidal ac signal and be connected in the fet gate；The field effect transistor leakage
Pole is connected with diverter one end, and the diverter other end is connected with battery positive voltage；The field effect transistor source electrode connects with load one end
Connect, the load other end is connected with battery terminal negative.Cardinal principle block diagram is referring to Fig. 3.One produced and circuit in sinusoidal ac signal there is
Individual AC signal, makes field effect transistor be operated in variable resistance area, and battery positive voltage Jing field effect transistor is entered to negative pole with exchange way
Row electric discharge, discharge current value can be obtained by diverter, and the magnitude of voltage is through amplifying, filtering, is changing through A/D, it is possible to
Use as the discharge current of the accumulator of measurement.
Preferably, it is ICL8038 generators that the sinusoidal ac signal occurs circuit.This utility model preferred embodiment
Schematic diagram is referring to Fig. 4.
The foregoing is only preferred embodiment of the present utility model, it is all according to this utility model claim done it is equal
Deng change and modification, should all belong to covering scope of the present utility model.
Claims (6)
1. a kind of storage batteries of transformer substation condition monitoring system, it is characterised in that：Including in accumulator, signal processing unit and control
The heart；The accumulator output is connected with signal processing unit；The signal processing unit output is connected with control centre；The letter
Number processing unit includes main control module and coupled internal resistance detection module；Internal resistance detection module includes intelligent load unit
And peak detection circuit；The intelligent load unit is at the positive and negative two ends of the accumulator；The control termination master control of intelligent load unit
Module；Accumulator output voltage, current signal Jing signals amplify filter unit and are connected with peak detection circuit input；The peak value
The detection A/D change-over circuits of circuit output Jing mono- are connected with main control module.
2. storage batteries of transformer substation condition monitoring system according to claim 1, it is characterised in that：Also include and the control
Man-machine interaction unit, the memory element of center connection.
3. storage batteries of transformer substation condition monitoring system according to claim 1, it is characterised in that：Also include and the control
The wireless telecommunications control unit of center connection, the control centre is by wireless telecommunications control unit and upper machine communication.
4. storage batteries of transformer substation condition monitoring system according to claim 1, it is characterised in that：The intelligent load unit
There is circuit including a field effect transistor, diverter, load and sinusoidal ac signal；The fet gate is believed with simple alternating current
Number occur circuit connection；The field effect transistor drain electrode is connected with diverter one end, and the diverter other end is connected with battery positive voltage；
The field effect transistor source electrode is connected with load one end, and the load other end is connected with battery terminal negative.
5. storage batteries of transformer substation condition monitoring system according to claim 4, it is characterised in that：The sinusoidal ac signal
Generation circuit is ICL8038 generators.
6. storage batteries of transformer substation condition monitoring system according to claim 1, it is characterised in that：Also include one with the control
The alarm module of center connection processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153506.7U CN206132951U (en) | 2016-10-31 | 2016-10-31 | Transformer substation storage cell state monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153506.7U CN206132951U (en) | 2016-10-31 | 2016-10-31 | Transformer substation storage cell state monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206132951U true CN206132951U (en) | 2017-04-26 |
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ID=58575570
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621153506.7U Active CN206132951U (en) | 2016-10-31 | 2016-10-31 | Transformer substation storage cell state monitoring system |
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| Country | Link |
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| CN (1) | CN206132951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611974A (en) * | 2020-12-23 | 2021-04-06 | 厦门科灿信息技术有限公司 | Storage battery internal resistance detection device |
-
2016
- 2016-10-31 CN CN201621153506.7U patent/CN206132951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611974A (en) * | 2020-12-23 | 2021-04-06 | 厦门科灿信息技术有限公司 | Storage battery internal resistance detection device |
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