CN207703999U - A kind of electric system accumulator cell essential resistance on-line measurement device - Google Patents
A kind of electric system accumulator cell essential resistance on-line measurement device Download PDFInfo
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- CN207703999U CN207703999U CN201721638605.9U CN201721638605U CN207703999U CN 207703999 U CN207703999 U CN 207703999U CN 201721638605 U CN201721638605 U CN 201721638605U CN 207703999 U CN207703999 U CN 207703999U
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- 238000005259 measurement Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model is intended to provide a kind of electric system accumulator cell essential resistance on-line measurement device, to solve the problems in prior art, to reduce cost.Including processing module, control module, voltage acquisition module, current acquisition module, discharge circuit, voltage collection circuit；The control module includes several acquisition control output ends, and acquisition control output end is connected with the control terminal of the control terminal of the first relay, the control terminal of the second relay, the control terminal of third relay and the 4th relay respectively；The processing module is connected with voltage acquisition module and current acquisition module respectively.Advantageous effects：The control terminal of the first relay, the break-make of the control terminal of the second relay, the control terminal and the 4th relay of third relay can be controlled by control module, allow control module to get the voltage and discharge current of specified tested accumulator, and then reduces cost.
Description
Technical field
The utility model is related to electric system, and in particular to a kind of electric system accumulator cell essential resistance on-line measurement device.
Background technology
Accumulator group is the important composition equipment of direct current operative power source of substation system, is that load carries exchanging the when of having a power failure
For uninterrupted power supply, with the raising of substation's grade, the capacity of accumulator is in be incremented by state, and the expense of accumulator also presents
Increase curve, accumulator group is far longer than expense proportion shared by rectifier power source in the expense proportion of complete equipment.As intelligence becomes
The popularization construction of power station technology and unattended operation transformer station, it is one important to carry out effective monitoring for accumulator property
Project.
Accumulator internal resistance is one of the important parameter for embodying battery performance, by the study found that accumulator capacity and health
State has close relationship with internal resistance, therefore by the variation of internal resistance, realizes to the on-line monitoring of accumulator it is to generally acknowledge at present
One of the preferred plan of battery service.The internal resistance of accumulator generally all very little, only tens milliohms even several milliohms, with friendship
The signal for flowing injection method measurement is very faint, and the noise being electrically charged in device and environment is flooded, and general internal resistance test device
It is seldom to test way, is that independent equipment is difficult to be connected with substation detecting system.
Notification number is CN202815191U- accumulator internal resistance measuring devices, including CPU, discharge control device, electric discharge mould
Block, analog/digital conversion device, current sampling device and voltage sampling apparatus；Two input terminals of voltage sampling apparatus respectively with electric power storage
The positive and negative electrode in pond connects, and output end is connect with the input terminal of analog/digital conversion device；One end of current sampling device and accumulator
Anode connection, the other end connects discharge module by a relay switch and is connected to the cathode of accumulator；Control of discharge fills
The output end of the input terminal and analog/digital conversion device set is all connected to CPU；Wherein, the control terminal of relay switch is controlled with electric discharge
The output end of device processed connects.The accumulator internal resistance measuring device can not only measure the internal resistance of small-capacity cells, not damage
The electrode of battery, and on-line testing is not influenced by charger and battery selfcapacity, and high certainty of measurement, speed are fast.It is not
Foot is：Discharge control device is only capable of controlling single relay, and accumulator internal resistance measuring device is only capable of detecting single accumulator, when
When needing to test other accumulators in accumulator group, CPU can not get other battery tensions and electric discharge in accumulator group
Electric current, then can not in calculating accumulator group other accumulators internal resistance；If necessary to other accumulators in calculating accumulator group
Internal resistance, it is necessary to multiple accumulator internal resistance measuring devices, cost are higher.
Utility model content
The utility model is intended to provide a kind of electric system accumulator cell essential resistance on-line measurement device, to solve prior art side
The problems in case, to reduce cost.
In order to realize the purpose, a kind of electric system accumulator cell essential resistance on-line measurement device, for measuring accumulator group
In each accumulator, including processing module, control module, voltage acquisition module and current acquisition module；
Each accumulator is respectively connected with a discharge circuit, and the discharge circuit includes：The first discharging terminals for being sequentially connected in series,
First relay, current acquisition module collection terminal, the second relay, discharge resistance and the second discharging terminals；First electric discharge
Terminal setting is arranged in accumulator one end, second discharging terminals in the accumulator other end；
Each accumulator is respectively connected with a voltage collection circuit, and the voltage collection circuit includes：First be sequentially connected in series
Acquire terminal, third relay, voltage acquisition module collection terminal, the 4th relay and the second acquisition terminal；First acquisition
Terminal setting is arranged in accumulator one end, the second acquisition terminal in the accumulator other end；
The control module includes several acquisition control output ends, the control with the first relay respectively of acquisition control output end
End processed, the control terminal of the second relay, the control terminal of third relay are connected with the control terminal of the 4th relay；
The processing module is connected with voltage acquisition module and current acquisition module respectively.
Preferably, the relay is solid-state relay.
Preferably, first relay both ends are parallel with varistor.
Preferably, second relay both ends are parallel with varistor.
Preferably, it is in series with self-recovery fuse between first discharging terminals and the first relay.
Preferably, the processing module is connected with communication module.
Preferably, the processing module is connected with display device.
Following advantageous effects can be obtained by implementing the utility model：Can by control module control first after
The break-make of the control terminal of electric appliance, the control terminal of the second relay, the control terminal of third relay and the 4th relay, and then control
The break-make of the voltage collection circuit and discharge circuit that are connect with specified tested accumulator；Make voltage acquisition module and current acquisition
Module can acquire the voltage and discharge current of specified tested accumulator；I.e. processing module can get specified tested accumulator
Voltage and discharge current so that for test storage battery internal resistance when, it is not necessary that multiple accumulator internal resistance measuring devices are arranged, into
And reduce cost.
Description of the drawings
Fig. 1 is the connection diagram of the utility model；
Fig. 2 is the circuit connection diagram of the utility model.
Specific implementation mode
For the ease of the understanding of those skilled in the art, the utility model is made with reference to specific embodiment further
Explanation：
Embodiment 1：
The utility model provides a kind of electric system accumulator cell essential resistance on-line measurement device, for measuring in accumulator group
Each accumulator, as depicted in figs. 1 and 2, including processing module 1, control module 2, voltage acquisition module 3 and current acquisition mould
Block 4；
Each accumulator is respectively connected with a discharge circuit 5, and the discharge circuit 5 includes：The first discharge end being sequentially connected in series
Sub 51, first relay 52, current acquisition module collection terminal 53, the second relay 54, discharge resistance 55 and the second discharging terminals
56；In accumulator one end, second discharging terminals 56 are arranged in the accumulator other end for the setting of first discharging terminals 51；
Each accumulator is respectively connected with a voltage collection circuit 6, and the voltage collection circuit 6 includes：Be sequentially connected in series
One acquisition terminal 61, third relay 62, voltage acquisition module collection terminal 63, the 4th relay 64 and second acquire terminal 65；
The first acquisition terminal setting is arranged in accumulator one end, the second acquisition terminal in the accumulator other end；
The control module 2 include several acquisition control output ends, acquisition control output end respectively with the first relay 52
Control terminal, the control terminal of the second relay 54, the control terminal of third relay 62 be connected with the control terminal of the 4th relay 64；
The processing module 1 is connected with voltage acquisition module 3 and current acquisition module 4 respectively.
Can by control module 2 control the control terminal of the first relay 52, the control terminal of the second relay 54, third after
The break-make of the control terminal of electric appliance 62 and the 4th relay 64, so control the voltage collection circuit 6 that is connect with tested accumulator and
5 break-make of discharge circuit；So that voltage acquisition module 3 and current acquisition module 4 can acquire tested accumulator voltage and
Discharge current.As for when collection voltages, when discharge and acquire discharge current, if according to the voltage and discharge current of acquisition
It is the prior art that accumulator resistance, which is calculated, and the utility model no longer describes.The setting of current acquisition module collection terminal 53 exists
In each discharge circuit, in practical measurement process, the first relay 52 and the second relay in each discharge circuit can be controlled
54 cut-off, and then control on the discharge circuit where which current acquisition module collection terminal 53 be specifically tested accumulator at.Together
Sample, voltage acquisition module collection terminal 63 is arranged in each voltage collection circuit, in practical measurement process, can control voltage
Third relay 62 and the 4th relay 64 are cut-off in Acquisition Circuit, and then are controlled voltage acquisition module collection terminal 63 and specifically existed
On voltage collection circuit where which tested accumulator.
The acquisition control output end of B, C and D of control module modules in order to control in Fig. 2；Acquisition control output end B and electric power storage
52 control terminal of the first relay in discharge circuit where the S1 of pond is connected with 54 control terminal of the second relay；Acquisition control output end
B is connected with 62 control terminal of third relay and 64 control terminal of the 4th relay in voltage collection circuit where accumulator S1；Equally
, acquisition control output end C and 52 control terminal of the first relay and the second relay 54 in discharge circuit where accumulator S2
Control terminal is connected；62 control terminal of third relay and the in voltage collection circuit where acquisition control output end C and accumulator S1
Four relays, 64 control terminal is connected；Likewise, the connection type of other acquisition control output ends is similar.
In Fig. 2, the output terminals A of control module is connected with the control terminal of current acquisition module, the output end E of control module with
The control terminal of voltage acquisition module is connected.
As the preferred embodiment of the utility model, the relay is solid-state relay.
As the preferred embodiment of the utility model, as shown in Fig. 2, first discharging terminals, 51 and first relay
Self-recovery fuse 57 is in series between 52.Preventing plant failure from misplacing, electric or discharge current is excessive causes to damage to battery pack
It is bad.
As the preferred embodiment of the utility model, 52 both ends of the first relay are parallel with varistor, and/
Or 54 both ends of the second relay are parallel with varistor.Prevent plant failure from misplacing electric or discharge current excessive to electricity
Pond group damages.
As the preferred embodiment of the utility model, the second acquisition terminal 65 on previous accumulator is simultaneously as latter
The first acquisition terminal 61 on accumulator.
As the optional embodiment of the utility model, the processing module 1 can be directly to use in background technology
CPU, voltage acquisition module 3 and current acquisition module 4 can also directly use voltage sample module and electric current in background technology
Acquisition module 4；The control circuit of microcontroller or routine may be used in the control module 2, by exporting low and high level control the
One relay 52, the second relay 54, third relay 62, the 4th relay 64, voltage acquisition module 3 and current acquisition module
4, such as high level one controller of series connection, the multiple controls switches parallel with one another of the interior setting of controller.
As the preferred embodiment of the utility model, as shown in Figure 1, the processing module 1 is connected with communication module 7.
As the preferred embodiment of the utility model, the processing module 1 is also associated with display module.
The foregoing is merely specific embodiment of the utility model, but the technical characteristics of the utility model is not limited to
This, any those skilled in the art in the field of the utility model, made by changes or modifications all cover it is new in this practicality
Among the scope of the claims of type.
Claims (7)
1. a kind of electric system accumulator cell essential resistance on-line measurement device, special for measuring each accumulator in accumulator group
Sign is：Including processing module, control module, voltage acquisition module and current acquisition module；
Each accumulator is respectively connected with a discharge circuit, and the discharge circuit includes：The first discharging terminals for being sequentially connected in series, first
Relay, current acquisition module collection terminal, the second relay, discharge resistance and the second discharging terminals；First discharging terminals
Setting is arranged in accumulator one end, second discharging terminals in the accumulator other end；
Each accumulator is respectively connected with a voltage collection circuit, and the voltage collection circuit includes：The first acquisition being sequentially connected in series
Terminal, third relay, voltage acquisition module collection terminal, the 4th relay and the second acquisition terminal；The first acquisition terminal
Setting is arranged in accumulator one end, the second acquisition terminal in the accumulator other end；
The control module includes several acquisition control output ends, the control with the first relay respectively of acquisition control output end
End, the control terminal of the second relay, the control terminal of third relay are connected with the control terminal of the 4th relay；
The processing module is connected with voltage acquisition module and current acquisition module respectively.
2. a kind of electric system accumulator cell essential resistance on-line measurement device as described in claim 1, it is characterised in that：The relay
Device is solid-state relay.
3. a kind of electric system accumulator cell essential resistance on-line measurement device as described in claim 1, it is characterised in that：Described first
Relay both ends are parallel with varistor.
4. a kind of electric system accumulator cell essential resistance on-line measurement device as described in claim 1 or 3, it is characterised in that：It is described
Second relay both ends are parallel with varistor.
5. a kind of electric system accumulator cell essential resistance on-line measurement device as described in claim 1, it is characterised in that：Described first
It is in series with self-recovery fuse between discharging terminals and the first relay.
6. a kind of electric system accumulator cell essential resistance on-line measurement device as described in claim 1, it is characterised in that：The processing
Module is connected with communication module.
7. a kind of electric system accumulator cell essential resistance on-line measurement device as described in claim 1, it is characterised in that：The processing
Module is connected with display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638605.9U CN207703999U (en) | 2017-11-30 | 2017-11-30 | A kind of electric system accumulator cell essential resistance on-line measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638605.9U CN207703999U (en) | 2017-11-30 | 2017-11-30 | A kind of electric system accumulator cell essential resistance on-line measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703999U true CN207703999U (en) | 2018-08-07 |
Family
ID=63024262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721638605.9U Active CN207703999U (en) | 2017-11-30 | 2017-11-30 | A kind of electric system accumulator cell essential resistance on-line measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207703999U (en) |
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2017
- 2017-11-30 CN CN201721638605.9U patent/CN207703999U/en active Active
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