CN107508381A - One kind is used for active power distribution network intelligent terminal battery isolation monitoring device - Google Patents
One kind is used for active power distribution network intelligent terminal battery isolation monitoring device Download PDFInfo
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- CN107508381A CN107508381A CN201710876306.7A CN201710876306A CN107508381A CN 107508381 A CN107508381 A CN 107508381A CN 201710876306 A CN201710876306 A CN 201710876306A CN 107508381 A CN107508381 A CN 107508381A
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- circuit
- protection circuit
- intelligent terminal
- power distribution
- distribution network
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 12
- 238000002955 isolation Methods 0.000 title claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims abstract description 12
- 230000001052 transient effect Effects 0.000 claims description 15
- 230000001629 suppression Effects 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009514 concussion Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H02J13/0006—
-
- 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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses one kind to be used for active power distribution network intelligent terminal battery isolation monitoring device, and it includes autoexcitation synchronous signal circuit and synchronizing signal output circuit, it is characterised in that：Signal input protection circuit is connected with push-pull circuit wire; push-pull circuit is oriented to signal output protection circuit and connected; signal output protection circuit is oriented to A/D module and connected, and autoexcitation synchronous signal circuit and synchronizing signal output circuit are connected with push-pull circuit wire；Solve prior art and carry out existing for status monitoring that precision is low, cost is high, fast wink is anti-interference to the battery of active power distribution network intelligent terminal and the technical problem such as surge poor anti-interference.
Description
Technical field
The invention belongs to power network intelligent terminal battery cell monitoring technology, more particularly to one kind to be used for active power distribution network intelligent terminal
Battery isolates monitoring device.
Background technology：
Battery in active power distribution network intelligent terminal carries when having a power failure and powered to terminal as back-up source
The effect such as power supply is provided with to Operation switch., just must be to the electric power storage of active power distribution network intelligent terminal for the reliability of power network
Pond carries out status monitoring.
The device monitoring scheme of traditional distribution terminal battery has following several：Voltage-frequency conversion plan, by voltage signal
Frequency signal is converted into using voltage-frequency conversion chip, frequency signal is transmitted to CPU by high speed photo coupling isolation and sampled.This device scheme
Major defect is that sampling precision is relatively low（The precision of voltage conversion into frequency is limited）, simultaneously because ceaselessly being counted to frequency signal
Occupancy cpu resource is more, and cost is higher；Sampled using the AD of separate CPU, by isolating side of the communication Serial Port Transmission to host CPU
Case.There is also some shortcomings, front-end sampling CPU to be vulnerable to interference for this device scheme, on the basis of a large amount of protection circuits are increased
It also is difficult to meet the EMC test requirements documents such as fast wink is anti-interference, surge is anti-interference, simultaneously because sampling CPU is serially led to host CPU
News, occupy 1 road serial line interface of host CPU, hardware are caused to the active power distribution network intelligent terminal of multi-channel serial port is natively needed
Resource distribution is difficult, while it is higher to will also result in peripheral circuit cost.
The content of the invention：
The technical problem to be solved in the present invention：A kind of active power distribution network intelligent terminal battery that is used for is provided and isolates monitoring device, with
Prior art is solved to precision is low, cost is high, fast wink existing for the battery progress status monitoring of active power distribution network intelligent terminal
The technical problems such as anti-interference and surge poor anti-interference.
Technical solution of the present invention：
One kind is used for active power distribution network intelligent terminal battery isolation monitoring device, and it includes autoexcitation synchronous signal circuit and synchronization
Signal output apparatus, signal input protection circuit are connected with push-pull circuit wire, push-pull circuit and signal output protection electricity
Road is oriented to connection, and signal output protection circuit is oriented to A/D module and connected, autoexcitation synchronous signal circuit and synchronizing signal output
Circuit is connected with push-pull circuit wire.
The push-pull circuit includes recommending modulation circuit and rectification demodulator circuit, recommends modulation circuit and rectification demodulation electricity
Road is connected by isolating transformer.
Autoexcitation synchronous signal circuit is connected with synchronizing signal output circuit by isolating transformer.
Signal input protection circuit includes first class of protection circuit, and first class of protection circuit is connected with safe secondary protection circuit wire,
Safe secondary protection circuit is connected with three-level protective circuit lead, and the first class of protection circuit includes fuse F1 and piezo-resistance RV1,
Fuse F1 and piezo-resistance RV1 are connected in series；Safe secondary protection circuit is the low-pass filter circuit that inductance L2 and electric capacity C1 is formed；
Three-level protective circuit includes TVS Transient Suppression Diodes D1, electric capacity C2 and electric capacity CF1, TVS Transient Suppression Diode D1 and electric capacity
C2 is connected in parallel, electric capacity CF1 ground connection.
Signal output protection circuit includes TVS Transient Suppression Diodes D7, TVS Transient Suppression Diode D7 and resistance R7
Connection, resistance R7 are connected with Schottky diode V1 wires.
Beneficial effects of the present invention：
Input signal passes through protection circuit first in the present invention, then by push-pull circuit, then is transmitted by isolating transformer, pushed away
Circuit activation signal to be drawn to be produced by autoexcitation synchronizing signal, whole circuit signal is coupled to the secondary of transformer by concussion, then
Rectification output is completed by the rectification modulation circuit of secondary, then the control of synchronized signal output apparatus, finally by output end
Signal protection circuit, the AD that last signal output gives host CPU are sampled；
The present invention isolates the scheme protection circuit letter of transmission using isolating transformer conversion signal again than direct AD sampled signals
Single, the protection to the coil of input is easier than the input pin of protection chip；
Concussion of the present invention directly by the use of the voltage of battery as autoexcitation signal control circuit is transmitted, integrated solution party
Case, an insulating power supply module is saved；
For the present invention using isolation depressor conversion signal is become for the single coil made, no-load voltage ratio is one stable
Parameter, so ensure the linearity of sampling, have more preferable precision than the scheme of voltage-frequency；Coil original secondary has no-load voltage ratio simultaneously, saves
The reduction voltage circuit of output end；
It is of the invention compared with traditional scheme device, it is not necessary to take communication port, reduce CPU hardware resource requirements；
It is of the invention not need CPU constantly to interrupt counting compared with traditional scheme device, the occupancy of CPU processor is saved,
A high-performance, inexpensive solution can thus be realized；
The present invention realizes carrier using isolating transformer as signal transmission isolation, and direct current signal passes through isolation through overmodulated circuit
Transformer transmits, and transformer secondary carries out the demodulation of signal, while the synchronous letter that the power supply for borrowing battery transmits as signal
Number driving source, by increasing protection circuit at input signal end and transformer secondary to reach the experiments such as surge and fast transient
Anti-interference requirement；Solve prior art and precision existing for status monitoring is carried out to the battery of active power distribution network intelligent terminal
It is low, cost is high, fast wink is anti-interference and the technical problem such as surge poor anti-interference.
Brief description of the drawings：
Fig. 1 is the overall architecture block diagram of the present invention；
Fig. 2 is input signal protection circuit schematic diagram；
Fig. 3 is output signal protection circuit schematic diagram；
Fig. 4 is push-pull circuit schematic diagram；
Fig. 5 is the integrated circuit structural representation of the present invention.
Embodiment：
One kind is used for active power distribution network intelligent terminal battery isolation monitoring device（See Fig. 1）, it includes autoexcitation synchronizing signal electricity
Road and synchronizing signal output circuit, signal input protection circuit are connected with push-pull circuit wire, and push-pull circuit is defeated with signal
Go out protection circuit and be oriented to connection, signal output protection circuit is oriented to A/D module and connected, autoexcitation synchronous signal circuit and synchronization
Signal output apparatus is connected with push-pull circuit wire.
The push-pull circuit includes recommending modulation circuit and rectification demodulator circuit, recommends modulation circuit and rectification demodulation electricity
Road is connected by isolating transformer.
Autoexcitation synchronous signal circuit is connected with synchronizing signal output circuit by isolating transformer.
Signal input protection circuit（See Fig. 2）Including first class of protection circuit, first class of protection circuit is led with safe secondary protection circuit
Line connects, and safe secondary protection circuit is connected with three-level protective circuit lead, and the first class of protection circuit includes fuse F1 and pressure-sensitive
Resistance RV1, fuse F1 and piezo-resistance RV1 are connected in series；Safe secondary protection circuit is the low pass that inductance L2 and electric capacity C1 is formed
Filter circuit；Three-level protective circuit includes TVS Transient Suppression Diodes D1, electric capacity C2 and electric capacity CF1, TVS transient state suppress two poles
Pipe D1 and electric capacity C2 are connected in parallel, electric capacity CF1 ground connection.
Danger close, piezo-resistance RV1 when fuse F1 mainly protects rear class short circuit, the especially rear class short circuit of battery
By-pass filtration is carried out to lightning surge signal, the failure model of piezo-resistance is short circuit, and such fuse F1 is also particularly important；By
The low-pass filter circuit of L2 and C1 compositions, further filtering high frequency signals.Three-level protective circuit is by TVS Transient Suppression Diodes D1
Play and surge DM EMI signal is further filtered and clamped pressure；Common-mode signal is filled into the earth by electric capacity CF1 simultaneously, is eliminated dry
Disturb signal.
Signal output protection circuit（See Fig. 3）Including TVS Transient Suppression Diodes D7, TVS Transient Suppression Diode D7 with
Resistance R7 connections, resistance R7 are connected with Schottky diode V1 wires.
TVS Transient Suppression Diodes D7 suppresses the high voltage of coupling, R7 limitation electric currents, V1 clamper input voltages, makes input
Signal voltage control to AD is inputted in tolerance range in sampling.
Fig. 4 is push-pull circuit structural representation,
R1, R2, R3, R4, R5, R6 are resistance, and Q1, Q2, Q3, Q4 are triode, and L1 is transformer.
R1 is connected to triode Q1 base stage, and Q1 colelctor electrodes connect with transformer L1 primary side tap N1 Same Name of Ends wires,
Q1 emitting stage connects with Q2 emitting stage wire.R2 is connected to triode Q2 base stage, Q2 colelctor electrodes and transformer L1 primary sides
Tap N2 non-same polarities wire connects, and Q2 emitting stage connects with Q1 emitting stage wire.R5 is connected to triode Q3 base stage,
Q3 colelctor electrodes connect with transformer L1 secondary tap S1 Same Name of Ends wires, and Q3 emitting stage connects with Q4 emitting stage wire.
R6 is connected to triode Q4 base stage, and Q4 colelctor electrodes connect with transformer L1 secondary tap S2 non-same polarity wires,
Q3 emitting stage connects with Q4 emitting stage wire.
Transformer L1 primary side N3 and N4 centre taps are connected among resistance R3, R4 partial pressure, N3 Same Name of Ends and resistance R2 are led
Line connects, and N4 non-same polarities connect with resistance R1 wire.L1 secondary S3 and S4 centre taps are connected to Vo-, the connection of S3 Same Name of Ends
To resistance R6, S4 non-same polarities are connected to resistance R5.
The voltage signal of input by Q1 with Q2 triodes alternating by voltage signal modulation into square wave, by transformer coupling
Transmission is closed, the square-wave signal of transformer secondary is completed rectification by Q3 and Q4 triodes, finally adjusted under control of the synchronization signal
Make it is whole, into direct current signal to sampling end.When battery tension is added on Vi, triode Q1 and Q2 is obtained by resistance R3
Forward bias and tend to turn on, but because two dynatron performances are not quite identical, therefore necessarily there is a triode to flow through
Circuit it is larger, preferential conducting.
The triode preferentially turned on simultaneously can suppress the conducting of another triode.The triode of conducting is full by being amplified to
With to after being amplified to the process of cut-off, the conducting of another triode can be triggered.This process is constantly repeated, forms concussion.
Claims (5)
1. one kind is used for active power distribution network intelligent terminal battery isolation monitoring device, it is including autoexcitation synchronous signal circuit and together
Walk signal output apparatus, it is characterised in that：Signal input protection circuit is connected with push-pull circuit wire, push-pull circuit and letter
Number output protection circuit is oriented to connection, and signal output protection circuit is oriented to A/D module and connected, autoexcitation synchronous signal circuit and
Synchronizing signal output circuit is connected with push-pull circuit wire.
2. a kind of active power distribution network intelligent terminal battery that is used for according to claim 1 isolates monitoring device, its feature exists
In：The push-pull circuit includes recommending modulation circuit and rectification demodulator circuit, recommends modulation circuit and rectification demodulator circuit leads to
Cross isolating transformer connection.
3. a kind of active power distribution network intelligent terminal battery that is used for according to claim 1 isolates monitoring device, its feature exists
In：Autoexcitation synchronous signal circuit is connected with synchronizing signal output circuit by isolating transformer.
4. a kind of active power distribution network intelligent terminal battery that is used for according to claim 1 isolates monitoring device, its feature exists
In：Signal input protection circuit includes first class of protection circuit, and first class of protection circuit is connected with safe secondary protection circuit wire, and two level is protected
Protection circuit is connected with three-level protective circuit lead, and the first class of protection circuit includes fuse F1 and piezo-resistance RV1, fuse
F1 and piezo-resistance RV1 are connected in series；Safe secondary protection circuit is the low-pass filter circuit that inductance L2 and electric capacity C1 is formed；Three-level is protected
Protection circuit includes TVS Transient Suppression Diodes D1, electric capacity C2 and electric capacity CF1, TVS Transient Suppression Diode D1 and electric capacity C2 are in parallel
Connection, electric capacity CF1 ground connection.
5. a kind of active power distribution network intelligent terminal battery that is used for according to claim 1 isolates monitoring device, its feature exists
In：Signal output protection circuit is connected including TVS Transient Suppression Diodes D7, TVS Transient Suppression Diode D7 with resistance R7,
Resistance R7 is connected with Schottky diode V1 wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710876306.7A CN107508381A (en) | 2017-09-25 | 2017-09-25 | One kind is used for active power distribution network intelligent terminal battery isolation monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710876306.7A CN107508381A (en) | 2017-09-25 | 2017-09-25 | One kind is used for active power distribution network intelligent terminal battery isolation monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107508381A true CN107508381A (en) | 2017-12-22 |
Family
ID=60698944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710876306.7A Pending CN107508381A (en) | 2017-09-25 | 2017-09-25 | One kind is used for active power distribution network intelligent terminal battery isolation monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107508381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113176514A (en) * | 2021-04-28 | 2021-07-27 | 广州市宇连电子有限公司 | Intelligent battery electric quantity monitoring isolation circuit of battery car |
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| CN201134155Y (en) * | 2007-12-25 | 2008-10-15 | 上海辰竹仪表有限公司 | Signal separating and converting circuit |
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| CN105871218A (en) * | 2016-05-05 | 2016-08-17 | 洛阳中重自动化工程有限责任公司 | IGBT driving method and device with push-pull type isolation power supply |
| CN106100128A (en) * | 2016-07-27 | 2016-11-09 | 国网江苏省电力公司常州供电公司 | Active power distribution network intelligent terminal's accumulator isolation monitoring device |
| CN206370821U (en) * | 2016-12-29 | 2017-08-01 | 株洲易力达机电有限公司 | A kind of Novel rotary transformer pumping signal output circuit |
| CN207184162U (en) * | 2017-09-25 | 2018-04-03 | 贵州电网有限责任公司电力科学研究院 | One kind is used for active power distribution network intelligent terminal battery isolation monitoring of structures |
-
2017
- 2017-09-25 CN CN201710876306.7A patent/CN107508381A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755743A (en) * | 2005-09-08 | 2006-04-05 | 广州汉为电子科技有限公司 | Passive electromagnetic isolated signal converter |
| CN201134155Y (en) * | 2007-12-25 | 2008-10-15 | 上海辰竹仪表有限公司 | Signal separating and converting circuit |
| CN203086345U (en) * | 2013-02-01 | 2013-07-24 | 株洲电力机车厂长河机电产品开发公司 | Power converting device |
| CN105871218A (en) * | 2016-05-05 | 2016-08-17 | 洛阳中重自动化工程有限责任公司 | IGBT driving method and device with push-pull type isolation power supply |
| CN106100128A (en) * | 2016-07-27 | 2016-11-09 | 国网江苏省电力公司常州供电公司 | Active power distribution network intelligent terminal's accumulator isolation monitoring device |
| CN206370821U (en) * | 2016-12-29 | 2017-08-01 | 株洲易力达机电有限公司 | A kind of Novel rotary transformer pumping signal output circuit |
| CN207184162U (en) * | 2017-09-25 | 2018-04-03 | 贵州电网有限责任公司电力科学研究院 | One kind is used for active power distribution network intelligent terminal battery isolation monitoring of structures |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113176514A (en) * | 2021-04-28 | 2021-07-27 | 广州市宇连电子有限公司 | Intelligent battery electric quantity monitoring isolation circuit of battery car |
| CN113176514B (en) * | 2021-04-28 | 2024-02-02 | 广州市宇连电子有限公司 | Intelligent battery electric quantity monitoring isolation circuit of storage battery car |
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