CN104037897A - Electric automobile wireless charging system design based on micro-grid - Google Patents
Electric automobile wireless charging system design based on micro-grid Download PDFInfo
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- CN104037897A CN104037897A CN201410306222.6A CN201410306222A CN104037897A CN 104037897 A CN104037897 A CN 104037897A CN 201410306222 A CN201410306222 A CN 201410306222A CN 104037897 A CN104037897 A CN 104037897A
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Abstract
The invention provides electric automobile wireless charging system design based on a micro-grid. An electric automobile wireless charging system mainly comprises a wind power generation module (1), a solar electricity generation module (2), an energy storage module (3), a chopped wave power oscillating circuit (5), a signal control module (5), an electromagnetic field transmitting circuit (6), an electromagnetic field receiving coil (7), a rectifying, filtering and wave chopping module (8), a super capacitor combined circuit (9) and an electric automobile (10). The design, namely, the leading edge topic in the electrician subject, is characterized in that pollution-free clean energy is provided for electric automobile charging, a low-carbon and environment-friendly electric automobile power supply mode is designed, and the disadvantages of an existing electric automobile charging method are overcome. By means of the electric automobile wireless charging system design, the micro-grid and a wireless electric energy transmission technology are effectively combined, and no air pollution can be caused in the whole process from the aspects of generation, conversion and application of electric energy. Pressure caused by energy sources can be effectively relieved, the problems caused by electric automobile charging are greatly solved, and therefore the electric automobile wireless charging system design has important practical significance in development of the society and has application prospects.
Description
Technical field
Requirement based on the energy, environment and economy sustainable development, designs the replacement to traditional electrical network, developing intellectual resource type, makes full use of the direction that renewable energy power generation is 21 century electric network reconstruction.Micro power network (microgrid) is owing to having adopted the clean distributed energy of a large amount of greens and can become the important component part of power network development from now on for user provides reliable, high-quality electric energy.
Wireless power transmission technology is one of most active hot research direction in current electrical engineering field, it integrates basic research and application study, be that of exploring of the outer academia of Present Domestic and industrial quarters is multidisciplinary, new research field and the advanced subject of strong intersection, contain many technical fields such as electromagnetic field, power electronic technology, electric power system, control technology, physics, materialogy, information technology.Adopt wireless power mode can effectively overcome all kinds of defects that electric wire connected mode exists, realize freely powering of electronic apparatus, there is important application expection and vast potential for future development.
A kind of wireless charging system for electric automobile design based on microgrid of the present invention, it is the advanced subject of electrotechnics section research, can not only provide free of contamination clean energy resource for charging electric vehicle, and designed the electric automobile powering mode of a kind of low-carbon (LC), environmental protection, and avoided the drawback of existing charging electric vehicle mode.
Background technology
In microgrid, wind light mutual complementing power generation technology is ripe, be now widely used in actual life, and be a kind of clean energy resource of green.
Wireless power transmission technology is broadly divided into three kinds: the first is inductive coupling type electric energy transmission, it utilizes loosely coupled transformer principle to pass can, generally there is the iron core apparatus that reduces loop magnetic resistance in transmitting terminal and receiving terminal, is applicable to small-power, short-range application scenario.The second is electromagnetic coupled resonant mode delivery of electrical energy, is applicable to the Energy Transfer of moderate distance by inductance on the resonator of high quality factor and distributed capacitor generation resonance transmitting energy.The third is electromagnetic radiation formula delivery of electrical energy, and in this technology, electric energy is converted into microwave form, and transmission range exceedance km, can realize the teletransmission of electric energy.Wherein electromagnetic coupled harmonic technology utilizes non-radiative electromagnetic field near-field region to complete delivery of electrical energy, than induction biography energy, has had very large expansion in transmission range on the one hand; Compare on the other hand electromagnetic radiation formula and pass energy, near-field region energy has radiationless feature, and this technology has good fail safe, therefore obtains at present very large concern and research.
Summary of the invention
Technical problem to be solved by this invention is, introduced the Power supply source of wind light mutual complementing power generation as charging electric vehicle, realized a kind of pollution-free, clean Power supply mode, avoided the shortage of energy.In addition, in charging electric vehicle, introduce wireless power transmission technology, avoided the drawback that exists in conventional electric automobile supply power mode, for charging electric vehicle provides a kind of quick and easy charging modes.
The technical solution adopted in the present invention is: a kind of wireless charging system for electric automobile design wind power generation module (1) and solar power generation module (2) based on microgrid, realized wind light mutual complementing power generation, store the energy in storage device (3), for electric power system provides input power; Copped wave power oscillating circuit (4), adapts to for the direct current of storage device (3) is converted to the high-frequency alternating electric current that bearing power requires; Signal controlling module (5), controls the output voltage values of chopper circuit to realize the balance of input power and power output; Electromagnetic field emissions circuit (6), the alternating electromagnetic field producing for launching copped wave power oscillating circuit; Electromagnetic field receiving coil (7), receives the alternating magnetic field that electromagnetic field emissions circuit is launched; Rectifying and wave-filtering copped wave module (8), the alternating current that electromagnetic field receiving coil is received is converted to the constant direct current of magnitude of voltage; Super capacitor combinational circuit (9), quick storage electric energy, for electric automobile (10) provides driving power.
Described copped wave power oscillating circuit (4) is comprised of chopper circuit and half-bridge power push-pull circuit, wherein chopper circuit is subject to Single-chip Controlling in signal control circuit (5), to control its output voltage values, the switching frequency of half-bridge power push-pull circuit is fixed, consistent with the resonance frequency of transmitting circuit.
Described signal control circuit (5) is comprised of power-sensing circuit and single chip machine controlling circuit.The power signal that power-sensing circuit detects converts and delivers to single chip machine controlling circuit through A/D, and single-chip microcomputer will compare with the power threshold prestoring, and regulates the output voltage index of chopper circuit in (4) according to comparative result.
Described electromagnetic field emissions circuit (6) is formed and is formed by the coiling of multiply litz wire, and the frequency of its resonance frequency and oscillating circuit output is consistent, to guarantee lower emission ratio, and the alternating electromagnetic field producing for launching copped wave power oscillating circuit.
Described electromagnetic field receiving coil (7) is turned to by the coiling of multiply litz wire, be positioned on the chassis of electric automobile, receiving coil has just been considered the frequency of oscillating circuit (4) when making, the frequency of the receiving coil of producing and electromagnetic field emissions circuit (6) and copped wave power oscillating circuit (4) output is consistent, to guarantee the receiving coil maintenance resonance condition that is in operation, in the mode being coupled by resonance, realize the efficient transmission of energy.
Described rectifying and wave-filtering copped wave module (8) is comprised of bridge rectifier, filter circuit, chopper circuit, the AC rectification that wherein bridge rectifier obtains coil becomes direct current, filter circuit is eliminated the high order harmonic component in circuit, and chopper circuit is transformed into filtered direct current the direct current of constant output voltage subsequently.
Described super capacitor combinational circuit (9) is comprised of super capacitor series-parallel circuit and protective circuit, with thinking that electric automobile provides energy.
A kind of wireless charging system for electric automobile design based on microgrid of the present invention, by microgrid and the effective combination of wireless power transmission technology, makes whole process can not cause the pollution of air from generation, conversion and the application of electric energy.Not only can effectively alleviate the pressure that the energy brings, the difficult problem that also charging electric vehicle brings greatly, therefore has great practical significance and application prospect to social development.
Accompanying drawing explanation
Fig. 1 is entire system functional block diagram;
Fig. 2 is the structure chart of electromagnetic emission coil and electromagnetism receiving coil;
Fig. 3 is the circuit diagram of super capacitor group;
Embodiment
Below in conjunction with embodiment and accompanying drawing, a kind of wireless charging system for electric automobile design based on microgrid of the present invention is made and being explained.
As shown in Figure 1, wind power generation module (1) and solar power generation module (2), realized wind light mutual complementing power generation, stores the energy in storage device (3), for electric power system provides input power; Copped wave power oscillating circuit (4), adapts to for the direct current of storage device (3) is converted to the high-frequency alternating electric current that bearing power requires; Signal controlling module (5), controls the output voltage values of chopper circuit to realize the balance of input power and power output; Electromagnetic field emissions circuit (6), the alternating electromagnetic field producing for launching copped wave power oscillating circuit; Electromagnetic field receiving coil (7), receives the alternating magnetic field that electromagnetic field emissions circuit is launched; Rectifying and wave-filtering copped wave module (8), the alternating current that electromagnetic field receiving coil is received is converted to the constant direct current of magnitude of voltage; Super capacitor combinational circuit (9), quick storage electric energy, for electric automobile (10) provides driving power; Wherein wind power generation module (1) is connected with energy storing device (3); Solar power generation module (2) is connected with energy storing device (3); Energy storing device (3) is connected and is connected with copped wave power oscillating circuit (4); Copped wave power oscillating circuit (4) is connected with signal controlling module (5); Copped wave power oscillating circuit (4) is connected with electromagnetic field emissions circuit (6); Electromagnetic field receiving coil (7) is connected with rectifying and wave-filtering copped wave module (8); Rectifying and wave-filtering copped wave module (8) is connected with super capacitor combinational circuit (9); Super capacitor combinational circuit (9) is connected with electric automobile (10).
As shown in Figure 2, electromagnetic field emissions circuit (6) and electromagnetic field emissions circuit (7), all adopt multiply litz wire, be coiled into tray type structure, and the electromagnetic field emissions circuit (6) of design and the natural resonance frequency of electromagnetic field emissions circuit (7) will equate with the concussion frequency of copped wave power oscillating circuit (4) output, thereby realize electromagnetic coupled resonance, wireless transmission energy.
As shown in Figure 3, super capacitor combinational circuit (9) adopts the super capacitor of 288 500F, and wherein 6 super capacitor series connection are a unit, and 12 unit parallel connections are one group, after super capacitor combinational circuit composition structure is two groups of series connection, more in parallel with other two groups of tandem compounds.It is short that this module storage power has the charging interval, and charging times is many, and advantage capacious can solve lithium battery and pollute greatly, and the charging interval is long, the drawback that charging times is few.
Claims (4)
1. the wireless charging system for electric automobile design based on microgrid, it is characterized in that being provided with: wind power generation module (1) and solar power generation module (2), realized wind light mutual complementing power generation, stored the energy in storage device (3), for electric power system provides input power; Copped wave power oscillating circuit (4), adapts to for the direct current of storage device (3) is converted to the high-frequency alternating electric current that bearing power requires; Signal controlling module (5), controls the output voltage values of chopper circuit to realize the balance of input power and power output; Electromagnetic field emissions circuit (6), the alternating electromagnetic field producing for launching copped wave power oscillating circuit; Electromagnetic field receiving coil (7), receives the alternating magnetic field that electromagnetic field emissions circuit is launched; Rectifying and wave-filtering copped wave module (8), the alternating current that electromagnetic field receiving coil is received is converted to the constant direct current of magnitude of voltage; Super capacitor combinational circuit (9), quick storage electric energy, for electric automobile (10) provides driving power; Wherein wind power generation module (1) is connected with energy storing device (3); Solar power generation module (2) is connected with energy storing device (3); Energy storing device (3) is connected and is connected with copped wave power oscillating circuit (4); Copped wave power oscillating circuit (4) is connected with signal controlling module (5); Copped wave power oscillating circuit (4) is connected with electromagnetic field emissions circuit (6); Electromagnetic field receiving coil (7) is connected with rectifying and wave-filtering copped wave module (8); Rectifying and wave-filtering copped wave module (8) is connected with super capacitor combinational circuit (9); Super capacitor combinational circuit (9) is connected with electric automobile (10).
2. a kind of wireless charging system for electric automobile design based on microgrid according to claim 1, be further characterized in that, described wind power generation module (1) and solar power generation module (2), it is a kind of pollution-free, green energy resource generation mode, it is incorporated in electric automobile wireless charging technology, for electric automobile provides Power supply source, can alleviates energy starved present situation, also can reduce greatly the content of PM2.5 in atmosphere, be human lives's Creating Comfort living environment.
3. a kind of wireless charging system for electric automobile design based on microgrid according to claim 1, be further characterized in that, described electromagnetic field emissions circuit (6) and electromagnetic field emissions circuit (7), adopt multiply litz wire, be coiled into tray type structure, and the electromagnetic field emissions circuit (6) of design and the natural resonance frequency of electromagnetic field emissions circuit (7) will equate with the concussion frequency of copped wave power oscillating circuit (4) output, thereby realize electromagnetic coupled resonance, wireless transmission energy.
4. a kind of wireless charging system for electric automobile design based on microgrid according to claim 1, be further characterized in that, described super capacitor combinational circuit (9), there is the charging interval short, charging times is many, and advantage capacious can solve lithium battery and pollute large, charging interval is long, the drawback that charging times is few.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410306222.6A CN104037897A (en) | 2014-06-27 | 2014-06-27 | Electric automobile wireless charging system design based on micro-grid |
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| CN201410306222.6A CN104037897A (en) | 2014-06-27 | 2014-06-27 | Electric automobile wireless charging system design based on micro-grid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348235A (en) * | 2014-11-24 | 2015-02-11 | 天津工业大学 | System for wireless charging of electric vehicle by photovoltaic-storage battery microgrid |
| CN106374634A (en) * | 2016-09-27 | 2017-02-01 | 哈尔滨理工大学 | Novel electric vehicle wireless charging apparatus |
| CN106451661A (en) * | 2016-11-16 | 2017-02-22 | 北京慧峰聚能科技有限公司 | Electric bicycle wireless charging system based on wind-solar hybrid generation |
| CN106487063A (en) * | 2016-11-07 | 2017-03-08 | 武汉理工大学 | The wireless charging device of the pure electric ship based on microgrid energy storage and method |
-
2014
- 2014-06-27 CN CN201410306222.6A patent/CN104037897A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348235A (en) * | 2014-11-24 | 2015-02-11 | 天津工业大学 | System for wireless charging of electric vehicle by photovoltaic-storage battery microgrid |
| CN106374634A (en) * | 2016-09-27 | 2017-02-01 | 哈尔滨理工大学 | Novel electric vehicle wireless charging apparatus |
| CN106487063A (en) * | 2016-11-07 | 2017-03-08 | 武汉理工大学 | The wireless charging device of the pure electric ship based on microgrid energy storage and method |
| CN106451661A (en) * | 2016-11-16 | 2017-02-22 | 北京慧峰聚能科技有限公司 | Electric bicycle wireless charging system based on wind-solar hybrid generation |
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Application publication date: 20140910 |
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