CN107294173A - A kind of intelligent quick charge instrument and its control method - Google Patents
A kind of intelligent quick charge instrument and its control method Download PDFInfo
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- CN107294173A CN107294173A CN201710607811.1A CN201710607811A CN107294173A CN 107294173 A CN107294173 A CN 107294173A CN 201710607811 A CN201710607811 A CN 201710607811A CN 107294173 A CN107294173 A CN 107294173A
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/025—Current limitation using field effect transistors
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
A kind of intelligent quick charge instrument of the present invention and its control method, stable charging circuit are reliable, extend the service life of super capacitor group, shorten the capacitance group charging interval, improve charge efficiency.The Charging Instrument includes main circuit and control circuit；Described main circuit includes 380V power supplys, rectifier bridge, filter circuit of pressure-stabilizing, IGBT full bridge inverters, high frequency transformer and the current rectifying and wave filtering circuit being sequentially connected, the output end connection super capacitor group of current rectifying and wave filtering circuit；Described control single channel includes single-chip microcomputer and IGBT drive circuit, and single-chip microcomputer connects the control end of IGBT full bridge inverters by IGBT drive circuit；By the IGBT drive circuit being provided with, the unidirectional magnetic saturation of transformer can be prevented, IGBT turn-off speed is improved, the stability and reliability of drive circuit are improved.
Description
Technical field
The present invention relates to super capacitor control field, specially a kind of intelligent quick charge instrument and its control method.
Background technology
Current electronic equipment power source capacity is increasing, and circuit is more and more accurate, but because charging equipment and caused by loss
But it should not be underestimated, key problem therein is the design and protecting circuit designed of charging circuit.And in the charge circuit the most
Crucial is exactly drive circuit, the following is several relatively common IGBT power tube drive circuits in the prior art.
First, IGBT direct driving circuit, as shown in figure 1, being realized using the push-pull circuit being made up of triode pair
IGBT driving, wherein bi-directional voltage stabilizing pipe D are to protect IGBT driving voltage to be unlikely to excessive, although this circuit structure
Simply, it is cheap, but the input of circuit and output can not electrical isolations, and the circuit offer negative grid when IGBT turn off
That presses is indifferent.
Second, optical couple isolation drive circuit, as shown in Fig. 2 the push-pull circuit that it constitutes photoelectrical coupler and triode
Perfectly it is combined togather, it realizes being effectively isolated for inverter and control loop, but is limited to optocoupler, and light-coupled isolation is driven
The speed of dynamic circuit can not possibly be higher than the switching speed of photoelectrical coupler, therefore also have certain limitation in the application.
3rd, transformer isolation drive circuit, as shown in figure 3, circuit employs transformer isolation, switching speed relative to
Optical couple isolation drive circuit is greatly improved.And driving power is big strong there is provided IGBT minus gate voltage ability, but circuit
Stability is still poor.
In existing drive circuit, all existence and stability is poor, and IGBT turn-off speeds are slow, it is impossible to meet higher and higher at present
Use demand；In addition in existing charging circuit, because the false excessively stream that line voltage is caused the reason for unstable or other
Phenomenon, it is easy to allow and control circuit maloperation, and then charging process is interrupted, damage the service life of super capacitor group so that fill
The overall performance of circuit is seriously restricted.
The content of the invention
For problems of the prior art, the present invention provides a kind of intelligent quick charge instrument and its control method, filled
Electric circuit stability is reliable, extends the service life of super capacitor group, shortens the capacitance group charging interval, improves charging effect
Rate.
The present invention is to be achieved through the following technical solutions：
A kind of intelligent quick charge instrument, including main circuit and control circuit；
Described main circuit includes 380V power supplys, rectifier bridge, filter circuit of pressure-stabilizing, the IGBT full-bridge invertings electricity being sequentially connected
Road, high frequency transformer and current rectifying and wave filtering circuit, the output end connection super capacitor group of current rectifying and wave filtering circuit；
Described control single channel includes single-chip microcomputer and IGBT drive circuit, and single-chip microcomputer connects IGBT by IGBT drive circuit
The control end of full bridge inverter；
Described IGBT drive circuit includes triode Q1, triode Q2, triode Q3, pulse transformer T1 and two-way steady
Pressure pipe D5；Triode Q1 base stage is through circuit R1 connection IGBT drive circuit inputs, collector connection+15v power supplys, emitter stage warp
The A ends of electric capacity C1 connection pulse transformer T1 primary sides；Triode Q2 base stage through circuit R1 connection IGBT drive circuit inputs,
Collector is grounded and connects the other end of pulse transformer T1 primary sides, emitter stage connecting triode Q1 emitter stage；Pulse transformer
The a ends of the T1 secondary gate pole through diode D3, diode D4 and resistance R4 connections IGBT successively, pulse transformer T1 secondary it is another
One end connects IGBT emitter stage；IGBT colelctor electrode connection input power；Triode Q3 base stages connect a ends of T1 secondary respectively
Between diode D3 and diode D4, collector connects the other end of T1 secondary, and emitter stage is connected to diode D4 and resistance R4
Between；Bi-directional voltage stabilizing pipe D5 two ends connect IGBT gate pole and colelctor electrode respectively；Wherein, the A ends of pulse transformer T1 primary sides
A ends with secondary are Same Name of Ends.
It is preferred that, voltage-regulator diode D1, voltage-regulator diode D1 negative pole are connected between triode Q1 collector and emitter stage
Connecting triode Q1 collector；Voltage-regulator diode D2 is connected between triode Q2 collector and emitter stage, voltage-regulator diode D2's
Negative pole connecting triode Q2 emitter stage；Triode Q3 base stage is led to by a ends of resistance R2 connection pulse transformer T1 secondary
Cross the other end of resistance R3 connection pulse transformer T1 secondary.
It is preferred that, bi-directional voltage stabilizing pipe D5 two ends are arranged in parallel resistance R5.
It is preferred that, described control circuit also includes the over-current detection protection circuit being connected on single-chip microcomputer；
Over-current detection protection circuit includes current transformer T, rectifier bridge D6, resistance R8, slide rheostat R9, triode Q4
With voltage-regulator diode D7；Rectifier bridge D6 input connection current transformer T, output end connection voltage-regulator diode D7；Voltage stabilizing two
Pole pipe D7 negative pole is through resistance R7 connection rectifier bridge D6 output head anodes, fixing end connection rectification of the positive pole through slide rheostat R9
Bridge D6 negative pole of output end；Resistance R8 one end is connected to voltage-regulator diode D7 negative poles, other end connection rectifier bridge D6 negative pole of output end；
Base stage of the slide rheostat R9 sliding ends through resistance R10 connecting triodes Q4；Triode Q4 base stage is grounded through electric capacity C4, collector
Connection+15V power supplys, grounded emitter and are used as output end.
Further, connected between rectifier bridge D6 input between resistance R6, output end and connect electric capacity C2 and electric capacity respectively
C3。
Further, triode Q4 collector is through resistance R11 connection+15V power supplys, and emitter stage is grounded through resistance R12.
It is preferred that, data acquisition circuit is set on described single-chip microcomputer；The input connection rectifier bridge of data acquisition circuit
Output end carries out voltage detecting, and connects the output end collection voltages electric current of high frequency transformer.
It is preferred that, key circuit, LCD display circuit, warning circuit and communication have been also respectively connected with described single-chip microcomputer
Module.
A kind of control method of intelligent quick charge instrument, including,
By to collection main circuit in rectifier bridge output voltage, high frequency transformer output current and voltage, in real time detection,
The current value one group data maximum with rate of change in the digital quantity of actual voltage value, the number of winning the confidence are obtained, then the selected period is real
Border charging current average value carries out difference with setting value, obtains the current deviation e and deviation as curent change error digital quantity
Rate of change ec, then as the input of fuzzy controller, handle eventually through FUZZY ALGORITHMS FOR CONTROL and obtain charging current anaplasia at any time
The curve of change；So as to take actual measurement current deviation e and deviation variation rate ec to be fuzzy variable, super capacitor electric current control is taken
Δ u processed is the output u of fuzzy controller.
Compared with prior art, the present invention has following beneficial technique effect：
Intelligence quick charge instrument of the invention, by the IGBT drive circuit being provided with, can prevent the unidirectional of transformer
Magnetic saturation, improves IGBT turn-off speed, the stability and reliability of drive circuit are improved；Using three-phase 380V/
50Hz power supplys are powered to Charging Instrument, using single-chip microcomputer as the control core of system, are become by IGBT full bridge inverters and high frequency
Depressor provides charging voltage to super capacitor group；The stability and reliability of circuit have obtained further improvement, extend super
The service life of level capacitance group, while shortening capacitor charging time, improves charge efficiency.
Further, by the current foldback circuit of setting, it can solve the problem that the reason for line voltage is unstable or other
False over-current phenomenon avoidance, using this current detecting protection circuit, can shield the void in charging circuit in the charging circuit caused
False over-current phenomenon avoidance, is effectively protected super capacitor group.
Further, the threshold current of protection act is adjusted by adjusting slide rheostat R9, by adjusting resistance R10
To adjust the sensitivity of protection.
The method of the invention, by the rectifier bridge output voltage in collection main circuit, high frequency transformer output current
With the real-time detection of voltage, 4 signals of IGBT temperature, the digital quantity of actual voltage value is obtained, is calculated after processing using fuzzy control
Method obtains the curve that charging current is changed over time, so as to obtain the output u of fuzzy controller.Logic is simple, and design is closed
Reason, the progress for being capable of convenience and high-efficiency is accurately controlled.
Brief description of the drawings
Fig. 1 is IGBT direct driving circuits structure chart in the prior art.
Fig. 2 is optical couple isolation drive circuit structure chart in the prior art.
Fig. 3 is transformer isolation driving circuit structure figure in the prior art.
Fig. 4 is the structured flowchart of the Charging Instrument described in present example.
Fig. 5 is the IGBT drive circuit structure chart described in present example.
Fig. 6 is the over-current detection protection circuit structure chart described in present example.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
A kind of intelligent quick charge instrument of the present invention includes IGBT drive circuit and over-current detection protection circuit.Described IGBT
Drive circuit can prevent the unidirectional magnetic saturation of transformer, improve IGBT turn-off speed, the stability of drive circuit and reliable
Property is improved.For because false excessively stream shows in the charging circuit that line voltage is caused the reason for unstable or other
As that by over-current detection protection circuit, the false over-current phenomenon avoidance in charging circuit can be shielded, super capacitor is effectively protected
Group.
As shown in figure 4, a kind of intelligent quick charge instrument of the present invention includes main circuit and control circuit.Main circuit includes 380V
Power supply, rectifier bridge, filter circuit of pressure-stabilizing, IGBT full bridge inverters, high frequency transformer and current rectifying and wave filtering circuit, main effect
It is to provide the variable voltage of amplitude, electric current for super capacitor group.Control circuit to include singlechip minimum system circuit, IGBT to drive
Circuit, communication module, LCD display circuit, key circuit, warning circuit and data acquisition circuit, main effect are by monolithic
Machine sends control signal, coordinates the work of Charging Instrument subsystems.In this preferred embodiment, single-chip microcomputer uses dsPIC30F3014
Single-chip microcomputer.
Wherein, IGBT drive circuit mainly by push-pull circuit, pulse transformer, diode, triode, bi-directional voltage stabilizing pipe,
The part such as IGBT is constituted, and main effect is IGBT fast conducting and shut-off.Specifically as shown in figure 4, C1 is capacitance,
The unidirectional magnetic saturation of pulse transformer T1 is prevented, D5 is bi-directional voltage stabilizing pipe, and it can suppress IGBT driving voltages overshoot, protection
IGBT。
The operation principle of circuit is as follows：When input is high level, triode Q1 conductings, the A of pulse transformer T1 primary sides
Hold as high level, a ends of A ends and secondary are Same Name of Ends, therefore a ends are also high level.Now diode D3, D4 is turned on, power supply warp
Cross D3, D4, R4 to charge the parasitic capacitance IGBT emitter-base bandgap gradings, when being charged to a certain degree, (voltage at electric capacity two ends reaches IGBT
Driving voltage) when, IGBT is open-minded；When input is low level, triode Q2 conductings, Q1 cut-offs, pulse transformer T1 is former
The A ends on side are connected to the ground by Q2, are changed into low level, and a ends are also low level, D3, D4 cut-off, triode Q3 conductings, IGBT
The electric charge of parasitic capacitance between emitter-base bandgap grading will discharge rapidly, IGBT shut-offs.
Wherein, current detecting protection circuit is main by current transformer, rectifier bridge, slide rheostat, triode and voltage stabilizing
Pipe is constituted.It is specific as shown in figure 5, T is the current transformer in high frequency transformer secondary, R6 is by the alternating current of transformer secondary
Stream signal is converted into ac voltage signal, entered D6 rectifier bridges and is converted into d. c. voltage signal, and C2, C3 shaping filter were then entered again
Ripple, is changed into the stable d. c. voltage signal of the less comparison of ripple, and threshold value electricity is formed at R8 two ends after R7, R8 series connection partial pressure
Pressure.The electric current of current transformer primary side is bigger, then the voltage at R8 two ends is higher.When the electric current of primary side is more than the threshold set by us
During value, voltage-stabiliser tube D7 punctures, and has electric current to pass through in slide rheostat R9, then electric capacity C4 is charged by R10, triode Q4 base stage
Current potential starts to gradually rise, if voltage-regulator diode D7 ON time is more than C4 charging interval, the voltage at electric capacity C4 two ends
Triode Q4 will be made to be in saturation state, Q will be turned on, and export the over-current signal of high level.If because line voltage is unstable
The false over-current phenomenon avoidance that fixed or other the reason for causes, then voltage-stabiliser tube D7 ON time is very of short duration, C4 charging interval
Also will be very of short duration, triode Q4 can not enter saturation state, therefore can not export the over-current signal of high level.
In this circuit, we can adjust the threshold current of protection act by adjusting slide rheostat R9, by adjusting
R10 is saved to adjust the sensitivity of protection.Charging circuit is detected by the over-current detection circuit, the excessively stream that can shield falseness shows
As.
Intelligent quick charge instrument of the present invention, using FUZZY ALGORITHMS FOR CONTROL.By to the rectification in collection main circuit
The real-time detection of bridge (bridge rectifier) output voltage, high frequency transformer output current and voltage, 4 signals of IGBT temperature,
Judge power circuit power supply performance according to four data are collected, and feed back to single-chip microcomputer to handle, obtain actual voltage value
Digital quantity, current value one group data maximum with rate of change in the number of winning the confidence, then selected period actual charge current is averaged
Value carries out difference with setting value, obtains curent change error digital quantity e and ec, then as the input of fuzzy controller, final warp
Software algorithm processing obtains the curve that charging current is changed over time.Therefore actual measurement current deviation e and change of error can be taken
Rate ec is fuzzy variable, takes the output u that super capacitor current control Δ u is fuzzy controller.Experiment measurement current deviation e base
This domain is：[- 1v, 1v], e fuzzy domain is：[- 5, -4, -3, -2, -1,0 ,+1 ,+2 ,+3 ,+4 ,+5], then error e
Quantizing factor is 1/5.Deviation variation rate ec and output variable u obscures domain：[-5,-4,-3,-2,-1,0,+1,+2,+3,+
4 ,+5], by prolonged debugging, emulation, debugging etc., according to data to (x, y) and change curve rule, obtain following logic
Control rule：
If e=NB and ec=NB then u=PB；
If e=NM and ec=NM then u=PB；
……
Through statistics, totally 52 similar control rules, specifically conclude and see the table below.
Fuzzy control rule table
Intelligence quick charge instrument of the invention by the optimization and change to IGBT drive circuit and current detecting protection circuit,
Design structure is simple, with low cost, effectively improves the stability and integrity problem of charging equipment, shields charging current
False over-current phenomenon avoidance, shorten the charging interval, improve charge efficiency.
Claims (9)
1. a kind of intelligent quick charge instrument, it is characterised in that including main circuit and control circuit；
Described main circuit include be sequentially connected 380V power supplys, rectifier bridge, filter circuit of pressure-stabilizing, IGBT full bridge inverters,
High frequency transformer and current rectifying and wave filtering circuit, the output end connection super capacitor group of current rectifying and wave filtering circuit；
Described control single channel includes single-chip microcomputer and IGBT drive circuit, and single-chip microcomputer connects IGBT full-bridges by IGBT drive circuit
The control end of inverter circuit；
Described IGBT drive circuit includes triode Q1, triode Q2, triode Q3, pulse transformer T1 and bi-directional voltage stabilizing pipe
D5；Triode Q1 base stage is through circuit R1 connection IGBT drive circuit inputs, collector connection+15v power supplys, and emitter stage is through electric capacity
The A ends of C1 connection pulse transformer T1 primary sides；Triode Q2 base stage is through circuit R1 connection IGBT drive circuit inputs, collector
It is grounded and connects the other end of pulse transformer T1 primary sides, emitter stage connecting triode Q1 emitter stage；Pulse transformer T1 pairs
The a ends on the side gate pole through diode D3, diode D4 and resistance R4 connections IGBT, the other end of pulse transformer T1 secondary successively
Connect IGBT emitter stage；IGBT colelctor electrode connection input power；Triode Q3 base stages connect a ends and two of T1 secondary respectively
Between pole pipe D3 and diode D4, collector connects the other end of T1 secondary, and emitter stage is connected between diode D4 and resistance R4；
Bi-directional voltage stabilizing pipe D5 two ends connect IGBT gate pole and colelctor electrode respectively；Wherein, the A ends of pulse transformer T1 primary sides and secondary
A ends be Same Name of Ends.
2. a kind of intelligent quick charge instrument according to claim 1, it is characterised in that triode Q1 collector and emitter stage
Between connect voltage-regulator diode D1, voltage-regulator diode D1 negative pole connecting triode Q1 collector；Triode Q2 collector and hair
Voltage-regulator diode D2, voltage-regulator diode D2 negative pole connecting triode Q2 emitter stage are connected between emitter-base bandgap grading；Triode Q3 base
Pole passes through the other end of resistance R3 connection pulse transformer T1 secondary by a ends of resistance R2 connection pulse transformer T1 secondary.
3. a kind of intelligent quick charge instrument according to claim 1, it is characterised in that bi-directional voltage stabilizing pipe D5 two ends parallel connections are set
Put resistance R5.
4. a kind of intelligent quick charge instrument according to claim 1, it is characterised in that described control circuit also includes connecting
It is connected on the over-current detection protection circuit on single-chip microcomputer；
Over-current detection protection circuit includes current transformer T, rectifier bridge D6, resistance R8, slide rheostat R9, triode Q4 and steady
Press diode D7；Rectifier bridge D6 input connection current transformer T, output end connection voltage-regulator diode D7；Voltage-regulator diode
D7 negative pole is through resistance R7 connection rectifier bridge D6 output head anodes, fixing end connection rectifier bridge D6 of the positive pole through slide rheostat R9
Negative pole of output end；Resistance R8 one end is connected to voltage-regulator diode D7 negative poles, other end connection rectifier bridge D6 negative pole of output end；Slide
Base stage of the rheostat R9 sliding ends through resistance R10 connecting triodes Q4；Triode Q4 base stage is grounded through electric capacity C4, collector connection
+ 15V power supplys, grounded emitter and are used as output end.
5. a kind of intelligent quick charge instrument according to claim 4, it is characterised in that connect between rectifier bridge D6 input
Electric capacity C2 and electric capacity C3 are connected between connecting resistance R6, output end respectively.
6. a kind of intelligent quick charge instrument according to claim 4, it is characterised in that triode Q4 collector is through resistance
R11 connection+15V power supplys, emitter stage is grounded through resistance R12.
7. a kind of intelligent quick charge instrument according to claim 1, it is characterised in that data are set on described single-chip microcomputer
Acquisition Circuit；The input connection rectification bridge output end of data acquisition circuit carries out voltage detecting, and connects high frequency transformer
Output end collection voltages electric current.
8. a kind of intelligent quick charge instrument according to claim 1, it is characterised in that also connect respectively on described single-chip microcomputer
It is connected to key circuit, LCD display circuit, warning circuit and communication module.
9. a kind of control method of intelligent quick charge instrument, it is characterised in that including,
By to rectifier bridge output voltage, high frequency transformer output current and the voltage in collection main circuit, in real time detection, obtaining
One group of maximum data of current value and rate of change in the digital quantity of actual voltage value, the number of winning the confidence, then the selected period actual is filled
Electric current average carries out difference with setting value, obtains the current deviation e and change of error as curent change error digital quantity
Rate ec, then as the input of fuzzy controller, handle eventually through FUZZY ALGORITHMS FOR CONTROL and obtain what charging current was changed over time
Curve；So as to take actual measurement current deviation e and deviation variation rate ec to be fuzzy variable, super capacitor current control Δ is taken
U is the output u of fuzzy controller.
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| CN201710607811.1A CN107294173B (en) | 2017-07-24 | 2017-07-24 | Intelligent rapid charging instrument and control method thereof |
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| CN201710607811.1A CN107294173B (en) | 2017-07-24 | 2017-07-24 | Intelligent rapid charging instrument and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494262A (en) * | 2018-04-20 | 2018-09-04 | 丰县宏祥电子科技有限公司 | The special full isolation DC-DC converter of New-energy electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762851A (en) * | 2014-01-23 | 2014-04-30 | 江苏杰瑞科技集团有限责任公司 | DC-DC conversion circuit suitable for power supply on high-voltage side of IGBT drive module |
| WO2015135345A1 (en) * | 2014-03-14 | 2015-09-17 | 华南理工大学 | Wireless charging circuit of electric vehicle |
| CN105406569A (en) * | 2015-12-25 | 2016-03-16 | 谢镕安 | Intelligent charging system of super-capacitor blade electric vehicle |
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2017
- 2017-07-24 CN CN201710607811.1A patent/CN107294173B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762851A (en) * | 2014-01-23 | 2014-04-30 | 江苏杰瑞科技集团有限责任公司 | DC-DC conversion circuit suitable for power supply on high-voltage side of IGBT drive module |
| WO2015135345A1 (en) * | 2014-03-14 | 2015-09-17 | 华南理工大学 | Wireless charging circuit of electric vehicle |
| CN105406569A (en) * | 2015-12-25 | 2016-03-16 | 谢镕安 | Intelligent charging system of super-capacitor blade electric vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494262A (en) * | 2018-04-20 | 2018-09-04 | 丰县宏祥电子科技有限公司 | The special full isolation DC-DC converter of New-energy electric vehicle |
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| Publication number | Publication date |
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| CN107294173B (en) | 2023-07-14 |
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