CN105305578B - A kind of high-efficiency high power wireless electric vehicle charging device - Google Patents
A kind of high-efficiency high power wireless electric vehicle charging device Download PDFInfo
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- CN105305578B CN105305578B CN201510801353.6A CN201510801353A CN105305578B CN 105305578 B CN105305578 B CN 105305578B CN 201510801353 A CN201510801353 A CN 201510801353A CN 105305578 B CN105305578 B CN 105305578B
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of high-efficiency high power wireless electric vehicle charging device, it includes alternating-current voltage source, the output end of alternating-current voltage source is connect with pulsed logic generation circuit, two-way high-frequency inverter respectively, pulsed logic generation circuit is connect with two-way high-frequency inverter, two-way high-frequency inverter is connect with series resonance transmit circuit, series resonance transmit circuit and parallel resonance receive circuit connection, and parallel resonance receives circuit and connect with automobile charging circuit, and automobile charging circuit is connect with batteries of electric automobile.The problem of present invention can solve existing charging equipment for automobile transimission power factor and transmission efficiency is low.
Description
Technical field
The invention belongs to automobile charging equipment fields, and in particular to a kind of high-efficiency high power electric car wireless charging Denso
It sets.
Background technique
Traditional electric car charge mode has common charging to mostly use AC charging that the long period is needed to be full of；Quickly fill
Electricity is mostly DC charging, needs biggish transimission power.Existing wireless charging transmit circuit is usually by rectification circuit and height
The problems such as frequency inverter circuit composition, it is low that there are power factors, and transmission efficiency is low.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, and a kind of efficient Gao Gong provided
Rate wireless electric vehicle charging device can solve existing charging equipment for automobile transimission power factor and transmission efficiency is low
The problem of.
The purpose of invention is achieved in that
A kind of high-efficiency high power wireless electric vehicle charging device, it includes alternating-current voltage source, the output of alternating-current voltage source
End is connect with pulsed logic generation circuit, two-way high-frequency inverter respectively, pulsed logic generation circuit and two-way high-frequency inverter
Connection, two-way high-frequency inverter are connect with series resonance transmit circuit, and series resonance transmit circuit and parallel resonance receive circuit
Connection, parallel resonance receive circuit and connect with automobile charging circuit, and automobile charging circuit is connect with batteries of electric automobile.
The pulsed logic generation circuit can generate 8 tunnel complementary PWM signals, for starting eight metal-oxide-semiconductors of S1 to S8.
Two-way full-bridge high-frequency resonance circuit is equipped in the alternating-current voltage source.
Eight metal-oxide-semiconductors of the S1 to S8 constitute full-bridge two-way circuit, and series resonant circuit is made of L1 and C1, alternating voltage
Source is connect with full-bridge two-way circuit, series resonant circuit.
The alternating-current voltage source operating voltage in positive half cycle, metal-oxide-semiconductor S1, S2, S7, S8 conducting, metal-oxide-semiconductor S3, S4, S5,
S6 cut-off, alternating-current voltage source operating voltage is in negative half period, metal-oxide-semiconductor S3, S4, S5, S6 conducting, S1, S2, S7, S8 cut-off.
The pulsed logic generation circuit includes voltage transformer, comparator connection, AND circuit.
The parallel resonance receives circuit and automobile charging circuit includes LC antiresonant circuit, high-frequency rectification circuit, filter
Wave circuit, direct-current voltage reducing circuit.
The filter circuit includes capacitive filter and rear class filtering circuit.
The present invention achieves technical effect below:
Firstly, transmit circuit does not rectify link, reduce the conduction voltage drop in energy transport, improves electric current change
The efficiency of transmission changed, device power transmission ratio with higher；
Then, series resonance state, transmit circuit are purely resistive load, without the effect of diode, capacitor, inductance, dress
Set power factor with higher；
Using the above structure, this patent energy high efficiency is high-power carries out wireless charging to electric car.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is structural block diagram of the invention；
Fig. 2 is the schematic diagram of transmit circuit part in the present invention；
Fig. 3 is that transmit circuit part works in the equivalent circuit schematic of the positive half cycle of power supply；
Fig. 4 is that transmit circuit part works in the equivalent circuit schematic of the negative half period of power supply；
Fig. 5 is pulsed logic generation circuit schematic diagram in the present invention；
Fig. 6 is the schematic diagram that circuit part is received in the present invention.
Specific embodiment
A kind of high-efficiency high power wireless electric vehicle charging device as shown in Figure 1, it includes alternating-current voltage source 1, alternating current
The output end of potential source 1 is connect with pulsed logic generation circuit 2, two-way high-frequency inverter 3 respectively, pulsed logic generation circuit 2 with
Two-way high-frequency inverter 3 connects, and two-way high-frequency inverter 3 is connect with series resonance transmit circuit 4, series resonance transmit circuit 4
With parallel resonance receive circuit 5 connect, parallel resonance receive circuit 5 connect with automobile charging circuit 6, automobile charging circuit 6 and
Batteries of electric automobile 7 connects.
The pulsed logic generation circuit 2 can generate 8 tunnel complementary PWM signals, for starting eight metal-oxide-semiconductors of S1 to S8.
Two-way full-bridge high-frequency resonance circuit is equipped in the alternating-current voltage source 1.
As shown in Fig. 2, eight metal-oxide-semiconductors of S1 to S8 constitute full-bridge two-way circuit, series resonant circuit is made of L1 and C1, is handed over
Galvanic electricity potential source 1 is connect with full-bridge two-way circuit, series resonant circuit.When the frequency of MOS switch pipe reaches f0When, transmit circuit is defeated
Maximum power out, main circuit is in series resonance state at this time, and transmit circuit is purely resistive load, power with higher because
Element is generally 10 milliohms or so, the loss very little of main circuit additionally, due to the conducting equivalent series resistance of switching tube, therefore has
Higher efficiency of transmission.
As shown in figure 3,1 operating voltage of alternating-current voltage source, in positive half cycle, metal-oxide-semiconductor S1, S2, S7, S8 are connected, MOS
Pipe S3, S4, S5, S6 cut-off, since L1 and C1 is in resonant state, entire circuit shows purely resistive, the power factor of transmitting
It is 1.Switching tube works in PWM state, and the flow direction of electric current is V1 anode-> S1-> S2-> L1-> C1-when PWM is high level
> S7-> S8-> V1 negative terminal, completes the charging to coil L1, resonant capacitance C1 in this course；Switching tube works PWM's
When low level, S2, S7 conducting, S1, S8 shutdown, the energy that is stored on L1, C1 at this time largely passed in the form of magnetic field to
Receiving coil, remaining energy then pass through S1, S2, S7, S8 and feed back in power supply；
As shown in figure 4,1 operating voltage of alternating-current voltage source, in negative half period, metal-oxide-semiconductor S3, S4, S5, S6 are connected, S1, S2,
S7, S8 cut-off, since L1 and C1 is in resonant state, entire circuit shows purely resistive, and the power factor of transmitting is 1.Switch
Pipe work in PWM state, when PWM is high level the flow direction of electric current be V1 negative terminal-> S4-> S3-> L1-> C1-> S6->
S5-> V1 anode, completes the charging to coil L1, resonant capacitance C1 in this course；Switching tube works in the low level of PWM
When, S4, S6 conducting, S3, S5 are turned off, and the energy being stored on L1, C1 at this time is largely passed in the form of magnetic field to reception line
Circle, remaining energy then pass through S3, S4, S5, S6 and feed back in power supply.
As shown in figure 5, pulsed logic generation circuit 2 includes voltage transformer, comparator connection, AND circuit, mutual induction of voltage
The voltage signal that device acquires alternating-current voltage source obtains phase information, and the phase information with synchronized is obtained after comparator,
The high level state of positive half cycle is directly output to S2 and S8, and negative half period is that high level state is directly output to S4 and S6, AND electricity
The phase of power grid and high-frequency carrier signal are modulated to obtain unipolar pwm signal by road, and the pwm signal of positive polarity is conveyed to
The pwm signal of S1, S7, negative polarity are transported to S3, S5.Entire circuit work is in the state that voltage source is exchange, according to power grid
State completes the switching of automatic positive-negative half-cycle.
As shown in fig. 6, parallel resonance receives circuit 5 and automobile charging circuit 6 includes LC antiresonant circuit, high-frequency rectification
Circuit, filter circuit, direct-current voltage reducing circuit；The filter circuit includes capacitive filter and rear class filtering circuit.LC parallel connection is humorous
Shake circuit, and the magnetic field energy of high frequency, the series connection of parallel resonance frequency and transmit circuit are obtained from wireless charging transmit circuit
Resonance frequency is consistent；D1 to D4 forms high-frequency rectification circuit, and the high-frequency ac received is rectified into the direct current energy of pulsation
Amount, it is DC energy fine in order to obtain that C2, which is capacitive filter, and S, D5, L2 constitute direct-current voltage reducing circuit, prime
DC converting at the consistent voltage of cell voltage, for control flow into battery energy；In addition the effect of C3 is direct current
The rear class filtering circuit of reduction voltage circuit eliminates the dither energy of direct-current voltage reducing circuit generation.
Using the above structure, in use, pulsed logic generation circuit 3 acquires the phase signal of alternating voltage, by MOS switch
The pulse of pipe S1 to S8 is allocated, and two-way high-frequency inverter output high-frequency pulse current is flowed into LC series resonance transmit circuit
4, LC parallel resonances receive the magnetic field that circuit 5 receives high-frequency impulse, then the energy transmission of collection is electric to electric car charging
Road 6 finally exports stable current signal to batteries of electric automobile 7, wherein batteries of electric automobile can be battery.
Claims (8)
1. a kind of high-efficiency high power wireless electric vehicle charging device, it is characterised in that: it includes alternating-current voltage source (1), exchange
The output end of voltage source (1) is connect with pulsed logic generation circuit (2), two-way high-frequency inverter (3) respectively, and pulsed logic generates
Circuit (2) is connect with two-way high-frequency inverter (3), and two-way high-frequency inverter (3) connect with series resonance transmit circuit (4), string
Connection resonance transmission circuit (4) receives circuit (5) with parallel resonance and connect, and parallel resonance receives circuit (5) and automobile charging circuit
(6) it connects, automobile charging circuit (6) is connect with batteries of electric automobile (7)；
Wherein, pulsed logic generation circuit (2) includes complementary switch pipe；
When using pulsed logic generation circuit (2), using following steps；
1) phase signal of pulsed logic generation circuit (2) acquisition alternating-current voltage source (1)；
2) pulsed logic generation circuit (2) is allocated by the pulse of the phase signal switch tube acquired；
3) two-way high-frequency inverter (3) output high-frequency pulse current is flowed into LC series resonance transmit circuit (4)；
4) LC parallel resonance receives circuit (5) and receives the magnetic field of high-frequency impulse, then by the energy transmission of collection to electric car
Charging circuit (6)；
5) electric energy is transferred in batteries of electric automobile (7) by electric car charging circuit (6)；
Wherein, alternating-current voltage source (1) operating voltage is in positive half cycle, metal-oxide-semiconductor S1, S2, S7, S8 conducting, metal-oxide-semiconductor S3, S4,
S5, S6 cut-off, switching tube work in PWM state, when PWM is high level the flow direction of electric current be V1 anode-> S1-> S2->
L1-> C1-> S7-> S8-> V1 negative terminal, completes the charging to coil L1, resonant capacitance C1 in this course；Switch plumber
Make in the low level of PWM, S2, S7 conducting, S1, S8 shutdown, the most of shape with magnetic field of the energy being stored on L1, C1 at this time
Formula is passed to receiving coil, and remaining energy then passes through S1, S2, S7, S8 and feeds back in power supply；
Alternating-current voltage source (1) operating voltage is in negative half period, metal-oxide-semiconductor S3, S4, S5, S6 conducting, S1, S2, S7, S8 cut-off, switch
Pipe work in PWM state, when PWM is high level the flow direction of electric current be V1 negative terminal-> S4-> S3-> L1-> C1-> S6->
S5-> V1 anode, completes the charging to coil L1, resonant capacitance C1 in this course；Switching tube works in the low level of PWM
When, S4, S6 conducting, S3, S5 are turned off, and the energy being stored on L1, C1 at this time is largely passed in the form of magnetic field to reception line
Circle, remaining energy then pass through S3, S4, S5, S6 and feed back in power supply；
Pulsed logic generation circuit (2) includes voltage transformer, comparator connection, AND circuit, and voltage transformer acquires alternating current
The voltage signal of potential source obtains phase information, and the phase information with synchronized, the height electricity of positive half cycle are obtained after comparator
Level state is directly output to S2 and S8, and negative half period is that high level state is directly output to S4 and S6, and AND circuit is by the phase of power grid
Position and high-frequency carrier signal are modulated to obtain unipolar pwm signal, and the pwm signal of positive polarity is conveyed to S1, S7, negative polarity
Pwm signal be transported to S3, S5;Entire circuit work is completed automatic in the state that voltage source is exchange according to the state of power grid
Positive-negative half-cycle switching.
2. high-efficiency high power wireless electric vehicle charging device according to claim 1, it is characterised in that: the pulse is patrolled
8 tunnel complementary PWM signals can be generated by collecting generation circuit (2), for starting eight metal-oxide-semiconductors of S1 to S8.
3. high-efficiency high power wireless electric vehicle charging device according to claim 1, it is characterised in that: the alternating current
Two-way full-bridge high-frequency resonance circuit is equipped in potential source (1).
4. high-efficiency high power wireless electric vehicle charging device according to claim 2, it is characterised in that: the S1 to S8
Eight metal-oxide-semiconductors constitute full-bridge two-way circuit, and series resonant circuit is made of L1 and C1, alternating-current voltage source (1) and the two-way electricity of full-bridge
Road, series resonant circuit connection.
5. high-efficiency high power wireless electric vehicle charging device according to claim 4, it is characterised in that: the alternating current
Potential source (1) operating voltage is in positive half cycle, metal-oxide-semiconductor S1, S2, S7, S8 conducting, metal-oxide-semiconductor S3, S4, S5, S6 cut-off, alternating voltage
Source (1) operating voltage is in negative half period, metal-oxide-semiconductor S3, S4, S5, S6 conducting, S1, S2, S7, S8 cut-off.
6. high-efficiency high power wireless electric vehicle charging device according to claim 1 or 2, it is characterised in that: the arteries and veins
Rushing logic generation circuit (2) includes voltage transformer, comparator connection, AND circuit.
7. high-efficiency high power wireless electric vehicle charging device according to claim 1, it is characterised in that: the parallel connection is humorous
Vibration receives circuit (5) and automobile charging circuit (6) includes LC antiresonant circuit, high-frequency rectification circuit, filter circuit, direct current drop
Volt circuit.
8. high-efficiency high power wireless electric vehicle charging device according to claim 7, it is characterised in that: the filtered electrical
Road includes capacitive filter and rear class filtering circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801353.6A CN105305578B (en) | 2015-11-19 | 2015-11-19 | A kind of high-efficiency high power wireless electric vehicle charging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510801353.6A CN105305578B (en) | 2015-11-19 | 2015-11-19 | A kind of high-efficiency high power wireless electric vehicle charging device |
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| CN105305578A CN105305578A (en) | 2016-02-03 |
| CN105305578B true CN105305578B (en) | 2019-04-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740221B (en) * | 2017-01-06 | 2020-12-29 | 中国计量大学 | V2G wireless power bidirectional transmission device based on low-frequency PWM rectifier |
| CN110588396B (en) * | 2019-08-21 | 2021-09-07 | 深圳市海鹏信新能源有限公司 | Electric automobile charging stack system |
| CN111731139B (en) * | 2020-05-19 | 2022-05-24 | 华为技术有限公司 | Wireless charging receiving end, transmitting end, system, control method and electric automobile |
| CN112026574B (en) * | 2020-07-16 | 2022-07-29 | 华为技术有限公司 | Positioning system, device and method based on low-frequency magnetic field |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007312585A (en) * | 2006-05-15 | 2007-11-29 | Ohira Denshi Kk | Non-contact power transmission apparatus |
| CN103548231A (en) * | 2011-05-25 | 2014-01-29 | 株式会社日立制作所 | Charging system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9391538B2 (en) * | 2011-09-21 | 2016-07-12 | Princeton Power Systems, Inc. | Switched power converter |
| CN205092637U (en) * | 2015-11-19 | 2016-03-16 | 三峡大学 | High -efficient high power electric automobile wireless charging device |
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- 2015-11-19 CN CN201510801353.6A patent/CN105305578B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007312585A (en) * | 2006-05-15 | 2007-11-29 | Ohira Denshi Kk | Non-contact power transmission apparatus |
| CN103548231A (en) * | 2011-05-25 | 2014-01-29 | 株式会社日立制作所 | Charging system |
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