CN108808813A - A kind of wireless charging system for electric automobile based on three-phase voltage type inversion - Google Patents
A kind of wireless charging system for electric automobile based on three-phase voltage type inversion Download PDFInfo
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- CN108808813A CN108808813A CN201810666713.XA CN201810666713A CN108808813A CN 108808813 A CN108808813 A CN 108808813A CN 201810666713 A CN201810666713 A CN 201810666713A CN 108808813 A CN108808813 A CN 108808813A
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- 238000004378 air conditioning Methods 0.000 claims 1
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Classifications
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- H02J7/025—
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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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
- Y02T10/72—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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of wireless charging system for electric automobile based on three-phase voltage type inversion, including energy emission system, energy acceptance system and information feedback system, energy emission system includes full bridge rectifier, three-phase high-frequency inverter circuit, transmitting high-frequency circuit and transmitting coil；Energy acceptance system includes to receive high-frequency circuit, regulator rectifier circuit, charging accumulator group and receiving coil；The receiving coil in transmitting coil and energy acceptance system in energy emission system is combined into coupling coil；Transmitting terminal uses three-phase voltage type inverter circuit, each coil to be connected respectively with two-phase therein, so that every phase output current is increased, improves efficiency；And three receiving coils give three batteries of electric vehicle to charge respectively, to reduce switching device, simplify circuit, avoid energy cascade transformation, overcome this prodigious disadvantage of energy cascade conversion loss, improve utilization rate of electrical.
Description
Technical field
The present invention relates to electric vehicle wireless charging field, especially a kind of electric vehicle based on three-phase voltage type inversion
Wireless charging system.
Background technology
With the development of economy, energy-saving and emission-reduction, development new energy become the theme of Developing, since country supports energetically
The development of new-energy automobile causes New-energy electric vehicle more and more universal, and traditional New-energy electric vehicle, which uses, micro USB
Electricity, but there are many drawbacks：For example circuit is easy aging, rainy days is non-watertight, and plug wire needs the problems such as artificial.And wireless charging
Technology can be to avoid these problems, and there are mainly four types of wireless power transmission technologies, induction, magnet coupled resonant type, electric field
Manifold type, radio waves type, radio energy transmission system are made of emitter and receiving device two parts, when transmitting terminal, are connect
When the intrinsic frequency of receiving end is identical with the frequency of alternating current, energy can be transferred to another coil from a coil, utilize
Strong magnetic coupling that resonance is formed realizes efficient wireless power transmission, however existing electric vehicle wireless charging mode,
Coil is one-to-one mode, and a transmitting coil, a receiving coil, transmitting coil is embedded in underground, and receiving coil is installed on
Bottom of car.The electric energy that receiving coil receives is to charging batteries of electric automobile, and only there are one batteries for electric vehicle.Then pass through each
Kind of transformation of electrical energy level-one level-one is this that energy cascade is transmitted by a rechargeable battery energy transmission to each electrical equipment
There is drawbacks to keep efficiency of transmission relatively low since every grade all lossy for mode, embodies as follows：
(1) existing technology generally uses full bridge inverter, the output of an only phase, if three coils in parallel due to
Parallel shunt makes the electric current of each coil become original 1/3, and transimission power is made to become smaller.
(2) traditional electric vehicle wireless charging only passes energy cascade then by transformation of electrical energy there are one battery
It is defeated by electrical equipment.Then this energy cascade transformation is lost very big to the mode of power supply for electrical equipment.
In order to coordinate automatic Pilot technology completely new at present to need to redesign to realize the full-automation of electric vehicle
A kind of wireless charging system.
The present invention be exactly in order to solve problem above and carry out improvement.
Invention content
The technical problem to be solved in the invention is to provide one kind and electric leakage, aging circuit and transimission power is avoided to become smaller, and carries
A kind of wireless charging system for electric automobile based on three-phase voltage type inversion of high utilization rate of electrical.
The present invention is technical solution used by solving its technical problem：
A kind of wireless charging system for electric automobile based on three-phase voltage type inversion, including energy emission system, energy connect
Receipts system and information feedback system, the energy emission system include full bridge rectifier, three-phase high-frequency inverter circuit, transmitting height
Frequency resonance circuit and transmitting coil；
The energy acceptance system includes to receive high-frequency circuit, regulator rectifier circuit, charging accumulator group and reception
Coil；
Described information reponse system includes detection unit, first microprocessor, communication unit and the second microprocessor；
The receiving coil in transmitting coil and energy acceptance system in the energy emission system is combined into coupling coil；
Full bridge rectifier in the energy emission system is directly connected with common frequency power network；
Charging accumulator group in the energy acceptance system is directly connected with information feedback system, described information feedback system
It is micro- to pass sequentially through first microprocessor, communication unit and second after charging accumulator group collection information for detection unit in system
After processor, energy emission system is transmitted a signal to after the second microprocessor processes；
Further, in the described charging system also include signal generator and driving circuit, the driving circuit production
Raw signal transmission gives three-phase high-frequency inverter circuit；
Further, the voltage of the common frequency power network output is 220V；
The energy emission system receives the voltage of common frequency power network output, and the described voltage is filtered through full bridge rectifier
Alternating current is changed into direct current after wave, it is high-frequency alternating current that electric current, which is transferred to three-phase high-frequency inverter circuit by DC current inversion,
Transmitting coil is transferred to after emitted high-frequency circuit, energy is transferred to receiving coil, receiving coil sense by coupling coil
Alternating current should be obtained, alternating current is converted into direct current by regulator rectifier circuit, later respectively to three of charging accumulator group
Battery charges；
Specifically, the full bridge rectifier includes diode VD1~VD4 and capacitance C1；
The three-phase high-frequency inverter circuit includes switching tube VT1~VT6；
The transmitting high-frequency circuit includes capacitance C2~C4 and transmitting coil；
The reception high-frequency circuit includes capacitance C5~C7 and receiving coil；
The transmitting coil and receiving coil form a coupling coil, and the described coupling coil includes magnetic coupler L1, magnetic
Coupler L2 and magnetic coupler L3；
The regulator rectifier circuit includes diode VD5~VD16 and capacitance C8~C10；
The charging accumulator group includes power battery V1, air conditioner compressed machine battery V2 and other equipment battery V3；
The diode VD1 and diode VD3 series connection, diode VD2 and diode VD4 series connection, the diode VD1's
The cathode of cathode and diode VD2 are connected after being connected with one end of capacitance C1, the anode and diode VD4 of the diode VD3
Anode be connected after be connected with the other end of capacitance C1；
The anode of the diode VD1 is connected with the firewire of common frequency power network AC, cathode and the common frequency power network AC of diode VD4
Zero curve be connected；
The switching tube VT1 and switching tube VT2 series connection, switching tube VT3 and switching tube VT4 series connection, switching tube VT5 and switch
Pipe VT6 series connection, the drain electrode of the switching tube VT1, switching tube VT3, switching tube VT5 are serially connected the cathode with diode VD2 afterwards
Be connected, the switching tube VT2, switching tube VT4, switching tube VT6 source electrode be serially connected and be connected afterwards with the anode of diode VD4；
The capacitance C2 connect with the transmitting coil of magnetic coupler L1 after respectively with the source electrode and switching tube of switching tube VT1
The source electrode of VT3 is connected；
The capacitance C3 connect with the transmitting coil of magnetic coupler L2 after respectively with the source electrode and switching tube of switching tube VT3
The source electrode of VT5 is connected；
The capacitance C4 connect with the transmitting coil of magnetic coupler L3 after respectively with the source electrode and switching tube of switching tube VT5
The source electrode of VT1 is connected；
The receiving coil of the magnetic coupler L1 connect with capacitance C5 after respectively with the anode and diode of diode VD5
The anode of VD6 is connected, the receiving coil of magnetic coupler L2 connect with capacitance C6 after respectively with the anode and diode of diode VD9
The anode of VD10 is connected, the receiving coil of magnetic coupler L3 connect with capacitance C7 after respectively with positive and two poles of diode VD13
The anode of pipe VD14 is connected；
Wherein, it is connected respectively with the positive and negative anodes of power battery V1 after the diode VD5 and diode VD7 series connection, two poles
Be connected respectively with the positive and negative anodes of capacitance C8 after pipe VD6 and diode VD8 series connection, the positive and negative anodes of the capacitance C8 respectively with power electric
The positive and negative anodes of pond V1 are connected；
It is connected respectively with the positive and negative anodes of air conditioner compressed machine battery V2 after the diode VD9 and diode VD11 series connection, two
Be connected respectively with the positive and negative anodes of capacitance C9 after pole pipe VD10 and diode VD12 series connection, the positive and negative anodes of the capacitance C9 respectively with sky
The positive and negative anodes of pressure regulation contracting machine battery V2 are connected；
It is connected respectively with the positive and negative anodes of other equipment battery V3 after the diode VD13 and diode VD15 series connection, two poles
Be connected respectively with the positive and negative anodes of capacitance C10 after pipe VD14 and diode VD16 series connection, the positive and negative anodes of the capacitance C10 respectively with its
The positive and negative anodes of his device battery V3 are connected.
Operation principle is：The system based on magnet coupled resonant type wireless electric energy on the basis of being transmitted, it is proposed that Yi Zhongji
In the topological diagram of the wireless power transmission of three-phase voltage type inversion, this topology has a three-phase inversion structure, three transmitting coils, and three
A receiving coil, three transmitting coils are embedded in underground, and three receiving coils are installed on bottom of car, are filled respectively to three batteries
Electricity, a battery are powered to the power plant of electric vehicle, and such as motor a, battery is powered to automobile air conditioner compressor, separately
Outer one lighting apparatus and other power supply for electrical equipment to automobile.
The advantage of the invention is that：
1. being to be based on magnet coupled resonant type wireless electric energy transmission technology, charge power supply can be allowed by the way of wireless charging
Physically completely isolated with load circuit, the encapsulation of transmitting terminal and receiving terminal is mutual indepedent, there is good water tightness, substitution
The mode of previous wired charging, the interface exposed danger of hazardous electrical discharges brought avoid rainwater rainy days to the shadow of charging circuit
The problems such as sound, which is suitable for rainy days, avoids electric leakage and aging circuit, and vapour can be realized using wireless charging mode
The full-automation of vehicle does not need artificial intervention, to realize that automobile is unmanned and intelligent establishes certain basis.
2. transmitting terminal uses three-phase voltage type inverter circuit, each coil to be connected respectively with two-phase therein, make every phase
Output current increases, and improves efficiency；And three receiving coils give three batteries of electric vehicle to charge respectively, to reduce
Switching device simplifies circuit, avoids energy cascade transformation, overcomes this prodigious disadvantage of energy cascade conversion loss, carry
High utilization rate of electrical.
3. the system uses three-phase high-frequency inverter circuit, it is connected with a transmitting coil as output per two-phase, makes every phase
Output current increases, and avoids the shortcomings that using full bridge inverter that transimission power is made to become smaller in the prior art.
Description of the drawings
Fig. 1 is a kind of block diagram of wireless charging system for electric automobile based on three-phase voltage type inversion proposed by the present invention.
Fig. 2 is a kind of topology of wireless charging system for electric automobile based on three-phase voltage type inversion proposed by the present invention
Figure.
Fig. 3 is the oscillogram of three-phase high-frequency inverter circuit output voltage in Fig. 1.
Fig. 4 is wireless power transmission MATLAB artificial circuit figures.
Fig. 5 is wireless power transmission MATLAB simulation waveforms.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Diagram and specific embodiment are closed, the present invention is further explained.
Referring to Fig.1, shown in Fig. 2, Fig. 3, a kind of wireless charging system for electric automobile based on three-phase voltage type inversion, packet
Energy emission system, energy acceptance system and information feedback system are included, the energy emission system includes full bridge rectifier, three
Phase high-frequency inverter circuit, transmitting high-frequency circuit and transmitting coil；
The energy acceptance system includes to receive high-frequency circuit, regulator rectifier circuit, charging accumulator group and reception
Coil；
Described information reponse system includes detection unit, first microprocessor, communication unit and the second microprocessor；
The receiving coil in transmitting coil and energy acceptance system in the energy emission system is combined into coupling coil；
Full bridge rectifier in the energy emission system is directly connected with common frequency power network；
Charging accumulator group in the energy acceptance system is directly connected with information feedback system, described information feedback system
It is micro- to pass sequentially through first microprocessor, communication unit and second after charging accumulator group collection information for detection unit in system
After processor, energy emission system is transmitted a signal to after the second microprocessor processes；
Further, in the described charging system also include signal generator and driving circuit, the driving circuit production
Raw signal transmission gives three-phase high-frequency inverter circuit；
Further, the voltage of the common frequency power network output is 220V；
The energy emission system receives the voltage of common frequency power network output, and the described voltage is filtered through full bridge rectifier
Alternating current is changed into direct current after wave, it is high-frequency alternating current that electric current, which is transferred to three-phase high-frequency inverter circuit by DC current inversion,
Transmitting coil is transferred to after emitted high-frequency circuit, energy is transferred to receiving coil, receiving coil sense by coupling coil
Alternating current should be obtained, alternating current is converted into direct current by regulator rectifier circuit, later respectively to three of charging accumulator group
Battery charges；
Specifically, the full bridge rectifier includes diode VD1~VD4 and capacitance C1；
The three-phase high-frequency inverter circuit includes switching tube VT1~VT6；
The transmitting high-frequency circuit includes capacitance C2~C4 and transmitting coil；
The reception high-frequency circuit includes capacitance C5~C7 and receiving coil；
The transmitting coil and receiving coil form a coupling coil, and the described coupling coil includes magnetic coupler L1, magnetic
Coupler L2 and magnetic coupler L3；
The regulator rectifier circuit includes diode VD5~VD16 and capacitance C8~C10；
The charging accumulator group includes power battery V1, air conditioner compressed machine battery V2 and other equipment battery V3；
The diode VD1 and diode VD3 series connection, diode VD2 and diode VD4 series connection, the diode VD1's
The cathode of cathode and diode VD2 are connected after being connected with one end of capacitance C1, the anode and diode VD4 of the diode VD3
Anode be connected after be connected with the other end of capacitance C1；
The anode of the diode VD1 is connected with the firewire of common frequency power network AC, cathode and the common frequency power network AC of diode VD4
Zero curve be connected；
The switching tube VT1 and switching tube VT2 series connection, switching tube VT3 and switching tube VT4 series connection, switching tube VT5 and switch
Pipe VT6 series connection, the drain electrode of the switching tube VT1, switching tube VT3, switching tube VT5 are serially connected the cathode with diode VD2 afterwards
Be connected, the switching tube VT2, switching tube VT4, switching tube VT6 source electrode be serially connected and be connected afterwards with the anode of diode VD4；
The capacitance C2 connect with the transmitting coil of magnetic coupler L1 after respectively with the source electrode and switching tube of switching tube VT1
The source electrode of VT3 is connected；
The capacitance C3 connect with the transmitting coil of magnetic coupler L2 after respectively with the source electrode and switching tube of switching tube VT3
The source electrode of VT5 is connected；
The capacitance C4 connect with the transmitting coil of magnetic coupler L3 after respectively with the source electrode and switching tube of switching tube VT5
The source electrode of VT1 is connected；
The receiving coil of the magnetic coupler L1 connect with capacitance C5 after respectively with the anode and diode of diode VD5
The anode of VD6 is connected, the receiving coil of magnetic coupler L2 connect with capacitance C6 after respectively with the anode and diode of diode VD9
The anode of VD10 is connected, the receiving coil of magnetic coupler L3 connect with capacitance C7 after respectively with positive and two poles of diode VD13
The anode of pipe VD14 is connected；
Wherein, it is connected respectively with the positive and negative anodes of power battery V1 after the diode VD5 and diode VD7 series connection, two poles
Be connected respectively with the positive and negative anodes of capacitance C8 after pipe VD6 and diode VD8 series connection, the positive and negative anodes of the capacitance C8 respectively with power electric
The positive and negative anodes of pond V1 are connected；
It is connected respectively with the positive and negative anodes of air conditioner compressed machine battery V2 after the diode VD9 and diode VD11 series connection, two
Be connected respectively with the positive and negative anodes of capacitance C9 after pole pipe VD10 and diode VD12 series connection, the positive and negative anodes of the capacitance C9 respectively with sky
The positive and negative anodes of pressure regulation contracting machine battery V2 are connected；
It is connected respectively with the positive and negative anodes of other equipment battery V3 after the diode VD13 and diode VD15 series connection, two poles
Be connected respectively with the positive and negative anodes of capacitance C10 after pipe VD14 and diode VD16 series connection, the positive and negative anodes of the capacitance C10 respectively with its
The positive and negative anodes of his device battery V3 are connected.
In such as Fig. 2, power grid 220V industrial-frequency alternating currents pass through the full bridge rectifier that four diodes are constituted, and are transformed into straight
Galvanic electricity is reverse into high-frequency alternating current using three-phase high-frequency inverter circuit, and switching frequency 500KHZ, energy is by transmitting high frequency
Then circuit carries out energy transmission by coupling coil, according to the principle of electric magnetisation and magnetic life electricity, energy is transmitted by transmitting coil
To receiving coil, receiving coil incudes to obtain alternating current, by receiving high-frequency circuit, the effect transmitted when resonating
Rate highest, C2=C3=C4=C5=C6=C7=C, when the magnetic coupler resonance of capacitance and coupling coil, and system reaches
To energy transmission efficiency highest when resonance, then meet formula (1)
It can obtain：
According to formula (3) and (4)
Mutual inductances of the M between two coils, the coefficients of coup of the k between two coils, L1 and L2 be respectively primary side transmitting coil and
The inductance of secondary side receiving coil, l1、l2The respectively self-induction of transmitting coil and receiving coil.
Energy is transferred to receiving coil by coupling coil, and receiving coil incudes to obtain alternating current, and alternating current passes through rectification
Regulator circuit is converted into direct current, charges respectively to three batteries of charging accumulator group later.
In such as Fig. 3, the trigger signal of Mosfet in three-phase high-frequency inverter circuit, respectively VT1, VT2, VT3, VT4,
The fundamental mode of VT5, VT6, three-phase high-frequency inverter circuit are 180 ° of electrically conducting manners, i.e., the conductive angle of each bridge arm
180 °, two arm alternating conductives, each conduction angle that mutually starts differ 120 ° of upper bridge arms to same phase (i.e. same half-bridge) successively up and down
The Mosfet of each phase distinguishes VT1, VT3, VT5, and the Mosfet of lower each phase of bridge distinguishes VT2, VT4, VT6, and it is 0 ° that VT1, which starts phase,
The delay phase of VT2 is 180 °, and the delay phase of VT3 is 120 °, and the delay phase of VT4 is 300 °, and the delay phase of VT5 is
240 °, the beginning phase of VT6 is 60 °, and the angle of flow of each Mosfet is 180 °, the triggering waveform that No. 1 waveform is VT1, t0
=0s gives VT1 trigger signals at this time.T1=1/6T, t2=2/6T, t3=3/6T, t4=4/6T, t5=5/6T, t6=T,
Middle T is the period of trigger pulse, wherein T=2*10-6.T0-t6 is a cycle, the t0-t1 times, VT1, VT4, VT5 conducting,
Uuv voltages are positive voltage, and Uvw voltages are negative voltage, and Uwu voltages are 0v, t1-t2 times, VT1, VT4, VT6 conducting, Uuv voltages
For positive voltage, Uvw voltages are 0v, and Uwu voltages are negative voltage, and the t2-t3 times, VT1, VT3, VT6 conducting, Uuv voltages are 0v,
Uvw voltages are positive voltage, and Uwu voltages are negative voltage, and the t3-t4 times, VT2, VT3, VT6 conducting, Uuv voltages are negative voltage, Uvw
Voltage is positive voltage, and Uwu voltages are 0v, and the t4-t5 times, VT2, VT3, VT5 conducting, Uuv voltages are negative voltage, and Uvw voltages are
0v, Uwu voltage are positive voltage, and the t5-t6 times, VT2, VT4, VT5 conducting, Uuv voltages are 0v, and Uvw voltages are negative voltage, Uwu
Voltage is positive voltage.The waveform of Uuv, Uvw, Uwu are as shown in Figure 3；As shown in figure 5, it is 10 Ω, self-induction L=4.32*10 to take R-6H,
K=0.2, V1 be emitting stage by 220v industrial-frequency alternating currents by direct current obtained by bridge rectifier, V1=200v, V3 are known by emulation
For the voltage at transmitting coil both ends, l1 is the electric current for flowing through transmitting coil, and V4 is the voltage of receiving coil, and l2 is to flow through reception line
The electric current of circle, v5 compensation electricity after voltage.
The system based on magnet coupled resonant type wireless electric energy on the basis of being transmitted, it is proposed that one kind being based on three-phase voltage type
The topological diagram of the wireless power transmission of inversion, this topology have three-phase inversion structure, three transmitting coils, three receiving coils,
Three transmitting coils are embedded in underground, and three receiving coils are installed on bottom of car, give three batteries to charge respectively, and a battery is given
The power plant of electric vehicle is powered, such as motor, and a battery is powered to automobile air conditioner compressor, another is to automobile
Lighting apparatus and other power supply for electrical equipment.
The wireless charging system is to be based on magnet coupled resonant type wireless electric energy transmission technology, can by the way of wireless charging
To make charge power supply and load circuit physically completely isolated, the encapsulation of transmitting terminal and receiving terminal is mutual indepedent, has good
Water tightness, instead of the mode of previous wired charging, the exposed danger of hazardous electrical discharges brought of interface avoids rainwater pair rainy days
The problems such as influence of charging circuit, which is suitable for rainy days, avoids electric leakage and aging circuit, and use wireless charging
Mode can realize the full-automation of automobile, not need artificial intervention, for realize automobile it is unmanned and it is intelligent establish centainly
Basis；Transmitting terminal uses three-phase voltage type inverter circuit, each coil to be connected respectively with two-phase therein, and every phase is made to export
Electric current increases, and improves efficiency；And three receiving coils give three batteries of electric vehicle to charge respectively, to reduce switch
Device simplifies circuit, avoids energy cascade transformation, overcomes this prodigious disadvantage of energy cascade conversion loss, improves electricity
It can utilization rate；The system uses three-phase high-frequency inverter circuit, is connected with a transmitting coil as output per two-phase, makes every phase
Output current increases, and avoids the shortcomings that using full bridge inverter that transimission power is made to become smaller in the prior art.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (7)
1. a kind of wireless charging system for electric automobile based on three-phase voltage type inversion, including energy emission system, energy acceptance
System and information feedback system, it is characterised in that：
The energy emission system includes full bridge rectifier, three-phase high-frequency inverter circuit, high-frequency circuit and transmitting coil；
The energy acceptance system includes to receive high-frequency circuit, regulator rectifier circuit, charging accumulator group and receiving coil；
Described information reponse system includes detection unit, first microprocessor, communication unit and the second microprocessor；
The receiving coil in transmitting coil and energy acceptance system in the energy emission system is combined into coupling coil；
Full bridge rectifier in the energy emission system is directly connected with common frequency power network；
Charging accumulator group in the energy acceptance system is directly connected with information feedback system, in described information reponse system
Detection unit after charging accumulator group collection information, pass sequentially through first microprocessor, communication unit and the second microprocessor
After device, energy emission system is transmitted a signal to after the second microprocessor processes.
2. a kind of wireless charging system for electric automobile based on three-phase voltage type inversion as described in claim 1, feature exist
In also including signal generator and driving circuit in the described charging system, the signal transmission that the driving circuit generates is given
Three-phase high-frequency inverter circuit.
3. a kind of wireless charging system for electric automobile based on three-phase voltage type inversion as described in claim 1, feature exist
In the voltage of the common frequency power network output is 220V.
4. a kind of wireless charging system for electric automobile based on three-phase voltage type inversion as claimed in claim 3, feature exist
In the energy emission system receives the voltage of common frequency power network output, and the described voltage is after full bridge rectifier is filtered
Electric current is transferred to three-phase high-frequency inverter circuit, and transmitting coil is transferred to after emitted high-frequency circuit, and energy passes through coupling line
Circle is transferred to receiving coil, and receiving coil incudes to obtain alternating current, and alternating current is converted into direct current by regulator rectifier circuit, it
It charges respectively to three batteries of charging accumulator group afterwards.
5. a kind of wireless charging system for electric automobile based on three-phase voltage type inversion as described in claim 1, feature exist
In the full bridge rectifier includes diode VD1~VD4 and capacitance C1；
The three-phase high-frequency inverter circuit includes switching tube VT1~VT6；
The transmitting high-frequency circuit includes capacitance C2~C4 and transmitting coil；
The reception high-frequency circuit includes capacitance C5~C7 and receiving coil；
The coupling coil includes magnetic coupler L1, magnetic coupler L2 and magnetic coupler L3；
The regulator rectifier circuit includes diode VD5~VD16 and capacitance C8~C10；
The charging accumulator group includes power battery V1, air conditioner compressed machine battery V2 and other equipment battery V3.
6. a kind of wireless charging system for electric automobile based on three-phase voltage type inversion as claimed in claim 5, feature exist
In the diode VD1 and diode VD3 series connection, diode VD2 and diode VD4 connect, the cathode of the diode VD1
It is connected with one end of capacitance C1 after being connected with the cathode of diode VD2, the anode and diode VD4 of the diode VD3 are just
It is connected with the other end of capacitance C1 after being extremely connected；
The anode of the diode VD1 is connected with the firewire of common frequency power network AC, the cathode of diode VD4 and the zero of common frequency power network AC
Line is connected；
The switching tube VT1 and switching tube VT2 series connection, switching tube VT3 and switching tube VT4 series connection, switching tube VT5 and switching tube
VT6 connects, and the drain electrode of the switching tube VT1, switching tube VT3, switching tube VT5 are serially connected the cathode phase with diode VD2 afterwards
Even, the switching tube VT2, switching tube VT4, switching tube VT6 source electrode be serially connected and be connected afterwards with the anode of diode VD4；
The capacitance C2 connect with the transmitting coil of magnetic coupler L1 after respectively with the source electrode of switching tube VT1 and switching tube VT3
Source electrode is connected；
The capacitance C3 connect with the transmitting coil of magnetic coupler L2 after respectively with the source electrode of switching tube VT3 and switching tube VT5
Source electrode is connected；
The capacitance C4 connect with the transmitting coil of magnetic coupler L3 after respectively with the source electrode of switching tube VT5 and switching tube VT1
Source electrode is connected；
The receiving coil of the magnetic coupler L1 is positive and diode VD6 with diode VD5 respectively after connecting with capacitance C5
Anode is connected, the receiving coil of magnetic coupler L2 connect with capacitance C6 after respectively with the positive and diode VD10 of diode VD9
Anode be connected, the receiving coil of magnetic coupler L3 connect with capacitance C7 after respectively with the anode and diode of diode VD13
The anode of VD14 is connected.
7. a kind of wireless charging system for electric automobile based on three-phase voltage type inversion as claimed in claim 6, feature exist
In, it is connected respectively with the positive and negative anodes of power battery V1 after the diode VD5 and diode VD7 series connection, diode VD6 and two poles
It is connected respectively with the positive and negative anodes of capacitance C8 after pipe VD8 series connection, the positive and negative anodes of the capacitance C8 are positive and negative with power battery V1 respectively
Extremely it is connected；
It is connected respectively with the positive and negative anodes of air conditioner compressed machine battery V2 after the diode VD9 and diode VD11 series connection, diode
Be connected respectively with the positive and negative anodes of capacitance C9 after VD10 and diode VD12 series connection, the positive and negative anodes of the capacitance C9 respectively with air-conditioning pressure
The positive and negative anodes of contracting machine battery V2 are connected；
It is connected respectively with the positive and negative anodes of other equipment battery V3 after the diode VD13 and diode VD15 series connection, diode
Be connected respectively with the positive and negative anodes of capacitance C10 after VD14 and diode VD16 series connection, the positive and negative anodes of the capacitance C10 respectively with other
The positive and negative anodes of device battery V3 are connected.
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Application publication date: 20181113 |