CN107878226A - A kind of novel electric vehicle magnetic resonance type wireless charging circuit and control method - Google Patents

A kind of novel electric vehicle magnetic resonance type wireless charging circuit and control method Download PDF

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Publication number
CN107878226A
CN107878226A CN201710990594.9A CN201710990594A CN107878226A CN 107878226 A CN107878226 A CN 107878226A CN 201710990594 A CN201710990594 A CN 201710990594A CN 107878226 A CN107878226 A CN 107878226A
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China
Prior art keywords
circuit
switching tube
electron capacitance
magnetic resonance
current rectifying
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Pending
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CN201710990594.9A
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Chinese (zh)
Inventor
康龙云
吴璟玥
冯腾
冯元彬
王则沣
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN201710990594.9A priority Critical patent/CN107878226A/en
Publication of CN107878226A publication Critical patent/CN107878226A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • 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
    • H02J7/045—
    • 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
    • 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
    • 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
    • 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
    • Y02T90/12—Electric charging stations
    • 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

Abstract

The invention discloses a kind of novel electric vehicle magnetic resonance type wireless charging circuit and control method, the charging circuit includes capital construction side part and vehicle-mounted side part, wherein, capital construction sidepiece point includes the first current rectifying and wave filtering circuit, high-frequency inverter circuit and the first series resonant circuit being sequentially connected, and the first series resonant circuit includes the transmitting coil L being connected in series1With the first electron capacitance circuit；Second of antiresonant circuit that vehicle-mounted sidepiece point includes being sequentially connected, the second current rectifying and wave filtering circuit, DC DC converters, second of antiresonant circuit include the receiving coil L being connected in parallel2With the second electron capacitance circuit, DC DC converters connect vehicle mounted dynamic battery.The electric automobile magnetic resonance type wireless charging circuit by adjusting the electron capacitance circuit of capital construction side and the electron capacitance circuit of vehicle-mounted side successively, realize that magnetic resonance type is wirelessly transferred, the wireless charging circuit may be used on electric automobile wireless charging field without communication function and efficiency of transmission height.

Description

A kind of novel electric vehicle magnetic resonance type wireless charging circuit and control method
Technical field
The present invention relates to electric vehicle engineering field, and in particular to a kind of novel electric vehicle magnetic resonance type wireless charging electricity Road and control method.
Background technology
So-called wireless charging, refer to, not by traditional electrical connection, but by way of magnetic coupling, realize electric energy Be wirelessly transferred.Wireless charging can be carried out efficiently using " resonance " principle-two vibration frequency identical object of physics The transmission of energy.Because the wireless charging of electromagnetic resonance can reach the high efficiency of transmission of comparison, it is widely applied in recent years The industrial field of electric automobile wireless charging.
Electric automobile (EV) refers to, using vehicle power as power, be travelled with power wheel, meets road traffic, safety The vehicle of the requirements such as regulation.In recent years, increasing sharply with global video car ownership, wherein be badly in need of solving asks One of topic is exactly the charging problems of electric automobile, and the charging modes of electric automobile are mainly wired charging method at present, but often There are many deficiencies in the wired charging methods of rule, to make more convenient charging electric vehicle, safety, economy, efficiently, therefore, nothing Micro USB power technology is got the attention.
The content of the invention
The invention aims to solve drawbacks described above of the prior art, there is provided a kind of novel electric vehicle magnetic resonance Formula wireless charging circuit and control method.
According to disclosed embodiment, the first aspect of the present invention discloses a kind of novel electric vehicle magnetic resonance type wireless charging Circuit, described magnetic resonance type wireless charging circuit include capital construction side part and vehicle-mounted side part, wherein, capital construction sidepiece subpackage Include the first current rectifying and wave filtering circuit, high-frequency inverter circuit and the first series resonant circuit；Capital construction sidepiece point includes the second parallel resonance Circuit, the second current rectifying and wave filtering circuit and DC-DC converter；
The input of the first described current rectifying and wave filtering circuit is connected to power network, for line voltage to be rectified into direct current Pressure；
The input of described high-frequency inverter circuit is connected to the output end of the first described current rectifying and wave filtering circuit, for inciting somebody to action The DC voltage inversion of described the first current rectifying and wave filtering circuit output is high frequency voltage square wave；
The input of the first described series resonant circuit is connected to the output end of described high-frequency inverter circuit；
The output end of the second described antiresonant circuit is connected to the input of the second described current rectifying and wave filtering circuit；
The input of the second described current rectifying and wave filtering circuit is connected to the output end of the second described antiresonant circuit, uses In by the ac voltage rectifier of described second antiresonant circuit output into DC voltage；
The input of described DC-DC converter is connected to the second described current rectifying and wave filtering circuit, for by described the The VD of two current rectifying and wave filtering circuits is transformed into the rated voltage needed for vehicle mounted dynamic battery charging；
Described transmitting coil L1With described receiving coil L2It is symmetrical arranged, the wireless of electric energy is realized by coupled modes Transmission.
Further, the first described series resonant circuit includes the transmitting coil L being sequentially connected in series1With the first electronics Condenser network, it is connected to the output end of described high-frequency inverter circuit；The second described antiresonant circuit includes being connected in parallel Receiving coil L2With the second electron capacitance circuit；It is connected to the input of the second described current rectifying and wave filtering circuit；Described hair Ray circle L1With state receiving coil L2By HF magnetic resonance mode, electric energy is from described transmitting coil L1It is delivered to described Receiving coil L2。
Further, the structure of the first described electron capacitance is as follows：
The first described electron capacitance includes first switch pipe, second switch pipe, the 3rd switching tube, the 4th switching tube and the One DC capacitor；Wherein, each switching tube of described first switch pipe to the 4th described switching tube distinguishes inverse parallel one Diode, the drain electrode of first switch pipe are connected with the positive pole of the first DC capacitor, the source electrode of first switch pipe and the 3rd switching tube Drain electrode be connected, the drain electrode of second switch pipe is connected with the positive pole of the first DC capacitor, and the source electrode of second switch pipe is opened with the 4th The drain electrode for closing pipe is connected, and the source electrode of the 3rd switching tube is connected with the negative pole of the first DC capacitor, the source electrode of the 4th switching tube and the The negative pole of one DC capacitor is connected, and the both ends of the first described electron capacitance circuit are respectively from the source electrode of first switch pipe and second The source electrode of switching tube is drawn.
Further, the structure of the second described electron capacitance is as follows：
The second described electron capacitance circuit includes the 5th switching tube, the 6th switching tube, the 7th switching tube, the 8th switching tube With the second DC capacitor；Wherein, each switching tube of the 5th switching tube to the 8th described switching tube distinguishes inverse parallel one Individual diode, the drain electrode of the 5th switching tube are connected with the positive pole of the second DC capacitor, the source electrode of the 5th switching tube and the 7th switch The drain electrode of pipe is connected, and the drain electrode of the 6th pass pipe is connected with the positive pole of the second DC capacitor, and the source electrode of the 6th switching tube is opened with the 8th The drain electrode for closing pipe is connected；The source electrode of 7th switching tube is connected with the negative pole of the second DC capacitor, the source electrode of the 8th switching tube and The negative pole of two DC capacitors is connected, and the both ends of the second described electron capacitance circuit are respectively from the source electrode and the 6th of the 5th switching tube The source electrode of switching tube is drawn.
According to disclosed embodiment, the second aspect of the present invention discloses a kind of novel electric vehicle magnetic resonance type wireless charging The control method of circuit, described control method comprise the following steps：
S0, civil power are converted into DC voltage by the first current rectifying and wave filtering circuit by AC is exchanged, and are then passed through high-frequency inversion electricity Road output high voltage square wave；
S1, the transmitting coil L according to primary side1With the first electron capacitance circuit, high-frequency inverter circuit initialization is set Angular frequency so that the first series resonant circuit is operated in resonant condition；
S2, adjust the first electron capacitance circuit and the second electron capacitance circuit successively so that the first series resonant circuit and Second antiresonant circuit is operated in magnetic resonance state, and the electric energy of primary side is transferred into secondary side；
S3, the charging electricity needed for vehicle mounted dynamic battery charging is obtained by the second current rectifying and wave filtering circuit and DC-DC converter It is pressed into and is charged to vehicle mounted dynamic battery.
Further, the first electron capacitance circuit and the second electron capacitance circuit are adjusted in described step S2 using shifting Phase angle control method is realized, specific as follows：
S201, according to resonance angular frequencyObtain the first electron capacitance and the second electronics electricity of resonant operational point The equivalent capacitance value C of appearanceeq；According toObtain control and close angle α, wherein, C is electronics electricity DC capacitor initial value in appearance；
S202, voltage-phase measured by phaselocked loop, first electron capacitance and second are controlled using phase shifting angle control methods Electron capacitance, it is α to control and close angle, produces suitable trigger pulse to control first switch pipe Q1To the 8th switching tube Q8。
The present invention is had the following advantages relative to prior art and effect：
The principle of equal effects of the invention based on electromagentic resonance and electron capacitance circuit, can for one by electron capacitance circuit equivalent Become electric capacity, according to different vehicle conditions, by changing vehicle-mounted side resonant capacitance equivalence value, realize the first series resonant circuit and the second string Connection resonance circuit is operated in magnetic resonance state.The electric automobile wireless charging circuit of the present invention not only improves charge efficiency, and Financial cost is saved, there are good market prospects and economic benefit.
Brief description of the drawings
Fig. 1 is a kind of construction scheme figure of novel electric vehicle magnetic resonance type wireless charging circuit disclosed by the invention；
Fig. 2 is a kind of overall construction drawing of novel electric vehicle magnetic resonance type wireless charging circuit disclosed by the invention；
Fig. 3 is electron capacitance circuit in a kind of novel electric vehicle magnetic resonance type wireless charging circuit disclosed by the invention Control figure.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment one
Fig. 1 gives the construction scheme figure of novel electric vehicle magnetic resonance type wireless charging circuit disclosed in the present embodiment, Wherein, capital construction side and the separation of vehicle-mounted side, capital construction side are arranged on below ground, transmitting coil L1Close to ground, when connecing for vehicle-mounted side Take-up circle L2In transmitting coil L1During top, wireless charging can be carried out.
Fig. 2 gives the overall construction drawing of novel electric vehicle magnetic resonance type wireless charging, and capital construction side includes the first rectification Filter circuit, high-frequency inverter circuit and the first series resonant circuit；Vehicle-mounted side includes the second antiresonant circuit, the second rectification is filtered Wave circuit and DC-DC converter；
Wherein, the input of the first described current rectifying and wave filtering circuit is connected to power network, for line voltage to be rectified into directly Flow voltage；
Wherein, the input of described high-frequency inverter circuit is connected to the output end of the first described current rectifying and wave filtering circuit, For being high frequency voltage square wave by the DC voltage inversion of described the first current rectifying and wave filtering circuit output；
Wherein, the input of the first described series resonant circuit is connected to the output end of described high-frequency inverter circuit；
Wherein, the output end of the second described antiresonant circuit is connected to the input of the second described current rectifying and wave filtering circuit End；
Wherein, the input of the second described current rectifying and wave filtering circuit is connected to the output of the second described antiresonant circuit End, for by the ac voltage rectifier of described second antiresonant circuit output into DC voltage；
Wherein, the input of described DC-DC converter is connected to the second described current rectifying and wave filtering circuit, for by described in The second current rectifying and wave filtering circuit VD be transformed into vehicle mounted dynamic battery charging needed for rated voltage.
Wherein, the first described series resonant circuit includes the transmitting coil L being sequentially connected in series1With the first electron capacitance Circuit；Described transmitting coil L1One end be connected with the negative pole of high-frequency inverter circuit output end, the other end and the first electronics electricity Capacitive circuit is connected；The first described electron capacitance circuit on one side and transmitting coil L1It is connected, the other end and and high-frequency inverter circuit The positive pole of output end is connected.
The second described antiresonant circuit includes the receiving coil L being connected in parallel2With the second electron capacitance circuit, connection To the input of the second current rectifying and wave filtering circuit；Described transmitting coil L1With described receiving coil L2By HF magnetic resonance side Formula, electric energy is from transmitting coil L1It is delivered to receiving coil L2。
The first described electron capacitance includes first switch pipe Q1, second switch pipe Q2, the 3rd switching tube Q3, the 4th switch Pipe Q4With the first DC capacitor C1；Wherein, described first switch pipe Q1To the 4th described switching tube Q4Each switching tube point Other one diode VD of inverse parallel, first switch pipe Q1Drain electrode and the first DC capacitor C1Positive pole be connected, first switch pipe Q1 Source electrode and the 3rd switching tube Q3Drain electrode be connected, second switch pipe Q2Drain electrode and the first DC capacitor C1Positive pole be connected, Two switching tube Q2Source electrode and the 4th switching tube Q4Drain electrode be connected, the 3rd switching tube Q3Source electrode and the first DC capacitor C1's Negative pole is connected, the 4th switching tube Q4Source electrode and the first DC capacitor C1Negative pole be connected, first switch pipe Q1Source electrode and high frequency Inverter circuit positive output end is connected, second switch pipe Q2Source electrode and transmitting coil L1One end is connected.
The second described electron capacitance circuit includes the 5th switching tube Q5, the 6th switching tube Q6, the 7th switching tube Q7, the 8th Switching tube Q8With the second DC capacitor C2；Wherein, the 5th described switching tube Q5To the 8th described switching tube Q8Each switch Pipe difference inverse parallel one diode VD, the 5th switching tube Q5Drain electrode and the second DC capacitor C2Positive pole be connected, the 5th switch Pipe Q5Source electrode and the 7th switching tube Q7Drain electrode be connected, the 6th switching tube Q6Drain electrode and the second DC capacitor C2Positive pole phase Even, the 6th switching tube Q6Source electrode and the 8th switching tube Q8Drain electrode be connected；7th switching tube Q7Source electrode and the second DC capacitor C2Negative pole be connected, the 8th switching tube Q8Source electrode and the second DC capacitor C2Negative pole be connected, the 5th switching tube Q5Source electrode connect It is connected on the positive input terminal and receiving coil L of the second current rectifying and wave filtering circuit2Between one end, the 6th switching tube Q6Source electrode be connected to The negative input end and receiving coil L of two current rectifying and wave filtering circuits2Between the other end.
Embodiment two
Present embodiment discloses a kind of control method of novel electric vehicle magnetic resonance type wireless charging circuit, specific implementation Process is as follows：
S0, civil power are converted into DC voltage by the first current rectifying and wave filtering circuit by AC is exchanged, and are then passed through high-frequency inversion electricity Road output high voltage square wave；
S1, the transmitting coil L according to primary side1With the first electron capacitance circuit, high-frequency inverter circuit initialization is set Angular frequency so that the first series resonant circuit is operated in resonant condition；
S2, adjust the first electron capacitance circuit and the second electron capacitance circuit successively so that the first series resonant circuit and Second antiresonant circuit is operated in magnetic resonance state, and the electric energy of primary side is transferred into secondary side；
S3, the charging electricity needed for vehicle mounted dynamic battery charging is obtained by the second current rectifying and wave filtering circuit and DC-DC converter It is pressed into and is charged to vehicle mounted dynamic battery.
Wherein, in above-mentioned steps S2, described regulation the first electron capacitance circuit and the second electron capacitance circuit use Phase shifting angle control methods are realized, specific as follows：
Step S201, according to resonance angular frequencyObtain the first electron capacitance and the second electricity of resonant operational point The equivalent capacitance value C of sub- electric capacityeq；According toObtain control and close angle α, wherein, C is electricity DC capacitor initial value in sub- electric capacity.
Step S202, voltage-phase is measured by phaselocked loop, using phase shifting angle control methods control first electron capacitance and Second electron capacitance, it is α to control and close angle, produces suitable trigger pulse to control first switch pipe Q1To the 8th switching tube Q8。
The whole work process of circuit of the present invention is：Civil power first passes around the first current rectifying and wave filtering circuit and is converted into AC is exchanged DC voltage, high-frequency inverter circuit output high voltage square wave is then passed through, then passes through the first series resonant circuit and second The magnetic resonance of antiresonant circuit, the electric energy of primary side is transferred to secondary side, finally by the second current rectifying and wave filtering circuit and DC- DC converters obtain the charging voltage needed for vehicle mounted dynamic battery charging and then charged to vehicle mounted dynamic battery.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification, Equivalent substitute mode is should be, is included within protection scope of the present invention.

Claims (6)

  1. A kind of 1. novel electric vehicle magnetic resonance type wireless charging circuit, it is characterised in that described magnetic resonance type wireless charging Circuit includes capital construction side part and vehicle-mounted side part, wherein, capital construction sidepiece point includes the first current rectifying and wave filtering circuit, high-frequency inversion electricity Road and the first series resonant circuit；Capital construction sidepiece point includes the second antiresonant circuit, the second current rectifying and wave filtering circuit and DC-DC and become Parallel operation；
    The input of the first described current rectifying and wave filtering circuit is connected to power network, for line voltage to be rectified into DC voltage；
    The input of described high-frequency inverter circuit is connected to the output end of the first described current rectifying and wave filtering circuit, for by described in The first current rectifying and wave filtering circuit output DC voltage inversion be high frequency voltage square wave；
    The input of the first described series resonant circuit is connected to the output end of described high-frequency inverter circuit；
    The output end of the second described antiresonant circuit is connected to the input of the second described current rectifying and wave filtering circuit；
    The input of the second described current rectifying and wave filtering circuit is connected to the output end of the second described antiresonant circuit, for inciting somebody to action The ac voltage rectifier of described second antiresonant circuit output is into DC voltage；
    The input of described DC-DC converter is connected to the second described current rectifying and wave filtering circuit, for described second is whole The VD of stream filter circuit is transformed into the rated voltage needed for vehicle mounted dynamic battery charging；
    Described transmitting coil L1With described receiving coil L2It is symmetrical arranged, being wirelessly transferred for electric energy is realized by coupled modes.
  2. 2. a kind of novel electric vehicle magnetic resonance type wireless charging circuit according to claim 1, it is characterised in that described The first series resonant circuit include the transmitting coil L that is sequentially connected in series1With the first electron capacitance circuit, it is connected to described The output end of high-frequency inverter circuit；The second described antiresonant circuit includes the receiving coil L being connected in parallel2With the second electronics Condenser network；It is connected to the input of the second described current rectifying and wave filtering circuit；Described transmitting coil L1With state reception line Enclose L2By HF magnetic resonance mode, electric energy is from described transmitting coil L1It is delivered to described receiving coil L2。
  3. 3. a kind of novel electric vehicle magnetic resonance type wireless charging circuit according to claim 2, it is characterised in that described The first electron capacitance structure it is as follows：
    It is straight that the first described electron capacitance includes first switch pipe, second switch pipe, the 3rd switching tube, the 4th switching tube and first Flow electric capacity；Wherein, each switching tube of described first switch pipe to the 4th described switching tube distinguishes one two pole of inverse parallel Pipe, the drain electrode of first switch pipe are connected with the positive pole of the first DC capacitor, the leakage of the source electrode of first switch pipe and the 3rd switching tube Extremely it is connected, the drain electrode of second switch pipe is connected with the positive pole of the first DC capacitor, the source electrode of second switch pipe and the 4th switching tube Drain electrode be connected, the source electrode of the 3rd switching tube is connected with the negative pole of the first DC capacitor, the source electrode of the 4th switching tube and first straight The negative pole of stream electric capacity is connected, and the both ends of the first described electron capacitance circuit are respectively from the source electrode and second switch of first switch pipe The source electrode of pipe is drawn.
  4. 4. a kind of novel electric vehicle magnetic resonance type wireless charging circuit according to claim 2, it is characterised in that described The second electron capacitance structure it is as follows：
    The second described electron capacitance circuit includes the 5th switching tube, the 6th switching tube, the 7th switching tube, the 8th switching tube and the Two DC capacitors；Wherein, each switching tube of the 5th switching tube to the 8th described switching tube distinguishes inverse parallel one two Pole pipe, the drain electrode of the 5th switching tube are connected with the positive pole of the second DC capacitor, the source electrode of the 5th switching tube and the 7th switching tube Drain electrode is connected, and the drain electrode of the 6th pass pipe is connected with the positive pole of the second DC capacitor, the source electrode and the 8th switching tube of the 6th switching tube Drain electrode be connected；The source electrode of 7th switching tube is connected with the negative pole of the second DC capacitor, the source electrode of the 8th switching tube and second straight The negative pole of stream electric capacity is connected, and the both ends of the second described electron capacitance circuit switch from the source electrode of the 5th switching tube and the 6th respectively The source electrode of pipe is drawn.
  5. A kind of 5. control method of novel electric vehicle magnetic resonance type wireless charging circuit, it is characterised in that described controlling party Method comprises the following steps：
    S0, civil power are converted into DC voltage by the first current rectifying and wave filtering circuit by AC is exchanged, and it is defeated to be then passed through high-frequency inverter circuit Go out high frequency voltage square wave；
    S1, the transmitting coil L according to primary side1With the first electron capacitance circuit, high-frequency inverter circuit initialization angular frequency is set ω so that the first series resonant circuit is operated in resonant condition；
    S2, the first electron capacitance circuit and the second electron capacitance circuit are adjusted successively so that the first series resonant circuit and second Antiresonant circuit is operated in magnetic resonance state, and the electric energy of primary side is transferred into secondary side；
    S3, the charging voltage obtained by the second current rectifying and wave filtering circuit and DC-DC converter needed for vehicle mounted dynamic battery charging are entered And charged to vehicle mounted dynamic battery.
  6. 6. a kind of control method of novel electric vehicle magnetic resonance type wireless charging circuit according to claim 5, it is special Sign is, the first electron capacitance circuit and the second electron capacitance circuit are adjusted in described step S2 and uses phase shifting angle control methods It is specific as follows to realize：
    S201, according to resonance angular frequencyObtain the first electron capacitance and the second electron capacitance of resonant operational point Equivalent capacitance value Ceq；According toObtain control and close angle α, wherein, C is in electron capacitance DC capacitor initial value；
    S202, voltage-phase measured by phaselocked loop, first electron capacitance and the second electronics are controlled using phase shifting angle control methods Electric capacity, it is α to control and close angle, produces suitable trigger pulse to control first switch pipe Q1To the 8th switching tube Q8。
CN201710990594.9A 2017-10-23 2017-10-23 A kind of novel electric vehicle magnetic resonance type wireless charging circuit and control method Pending CN107878226A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110979042A (en) * 2019-12-20 2020-04-10 中兴新能源汽车有限责任公司 Wireless charging receiving device and wireless charging control method and wireless charging system
CN113872342A (en) * 2021-09-23 2021-12-31 台州市复鑫睿智能科技有限公司 Medium and small power wireless energy over-distance transmission system based on magnetic resonance mode

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CN106740238A (en) * 2017-02-20 2017-05-31 华南理工大学 A kind of electric automobile wireless charging circuit and its control method
CN207510243U (en) * 2017-10-23 2018-06-19 华南理工大学 A kind of novel electric vehicle magnetic resonance type wireless charging circuit

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CN203840065U (en) * 2014-03-13 2014-09-17 江苏雅迪科技发展有限公司 An electric sightseeing vehicle electromagnetic resonance type radio electric energy transmission system
CN106712319A (en) * 2017-02-20 2017-05-24 华南理工大学 Magnetic resonance type wireless charging circuit of electric automobile and control method of magnetic resonance type wireless charging circuit
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CN110979042A (en) * 2019-12-20 2020-04-10 中兴新能源汽车有限责任公司 Wireless charging receiving device and wireless charging control method and wireless charging system
CN113872342A (en) * 2021-09-23 2021-12-31 台州市复鑫睿智能科技有限公司 Medium and small power wireless energy over-distance transmission system based on magnetic resonance mode

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