CN106347152A - Wireless power transmission system of electric automobile - Google Patents

Wireless power transmission system of electric automobile Download PDF

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Publication number
CN106347152A
CN106347152A CN201610794685.0A CN201610794685A CN106347152A CN 106347152 A CN106347152 A CN 106347152A CN 201610794685 A CN201610794685 A CN 201610794685A CN 106347152 A CN106347152 A CN 106347152A
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CN
China
Prior art keywords
power transmission
wireless power
transmission system
circuit
electric automobile
Prior art date
Application number
CN201610794685.0A
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Chinese (zh)
Inventor
潘劲松
吴自来
李小军
施邦邦
孙有成
李必超
王中坤
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安徽中科自动化股份有限公司
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Priority to CN201610794685.0A priority Critical patent/CN106347152A/en
Publication of CN106347152A publication Critical patent/CN106347152A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods 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
    • B60L53/12Inductive energy transfer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30Constructional details of charging stations
    • B60L53/35Means for automatically adjusting the relative position of charging devices and vehicles
    • B60L53/38Means for automatically adjusting the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7005Batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility
    • Y02T10/7208Electric power conversion within the vehicle
    • Y02T10/7241DC to AC or AC to DC power conversion

Abstract

The invention discloses a wireless power transmission system of an electric automobile. The wireless power transmission system comprises an emitting end and a receiving end; the emitting end is mainly composed of a large-capacity high-frequency power source, an emitting unit with magnetic shielding and related control circuits; the receiving end mainly comprises receiving units with magnetic shielding, charging circuits and a control unit; the control unit is used for achieving the stability of output power of the emitting end; each charging circuit comprises a rectifier circuit, an adjusting circuit and a protecting circuit. The emitting end is buried under a road, and therefore power is supplied to the electric automobile during driving; a superconductor for protecting the circuits is matched, in this way, the defects that the cruising ability of a battery is low, and the charging time is long are effectively avoided, the weight of the electric automobile is also greatly reduced, and the wireless power transmission system saves energy and is environmentally friendly and efficient.

Description

一种电动汽车的无线电能传输系统 An electric car wireless power transmission system

技术领域 FIELD

[0001]本发明涉及无线电能传输领域,具体是一种电动汽车的无线电能传输系统。 [0001] The present invention relates to the field of wireless power transmission, particularly a wireless power transmission system of an electric vehicle.

背景技术 Background technique

[0002]近年来,无线电能传输技术是众多学者研究的一个热点,该技术避免了线路的冗余,极大地增强了设备移动的便利性,能够广泛地应用于手机、iPad、智能手表和电动牙刷等小功率电子产品,以及为节能路灯和电动汽车等大功率设备无线供电。 [0002] In recent years, wireless power transmission technology is a hot topic of many scholars, the technology avoids the redundant line, greatly enhancing the convenience of a mobile device can be widely used in mobile phones, iPad, smart watches and electric toothbrushes and other small power electronic products, as well as energy-saving lamps and electric cars and other high-power wireless devices. 随着人们对无线电能传输技术的研究不断深入,其应用也越来越多。 As people research on wireless power transmission technology deepening, its application is also increasing. 新型无线电能传输技术相对有线方式具有很多优点:安全、便利、可靠;易于实现信息化、智能化,便于管理且维护费用低;便于实现对多台用电设备同时充电;可降低用电设备对电池的容量要求,从而节约成本;可对电网起到削峰填谷的作用,降低对电网的冲击。 New wireless power transmission technique has many advantages wired opposite: safe, convenient, and reliable; easy to implement information, intelligence, easy to manage and low maintenance costs; facilitate charging of multiple electrical devices simultaneously; electrical equipment may be reduced to battery capacity requirements, cost savings; may function as load shifting on the grid, reducing the impact on power. 这些优点很好地满足了智慧园区绿色经济的定位。 These advantages are well positioned to meet the economic wisdom of green park.

[0003] 无线电能传输(wireless power transmiss1n,WPT)技术又称无接触电能传输技术,该技术的实质是利用电磁波、高频功率磁场、微波、RF无线电波以及电磁场近场耦合等存在于物理空间中的传能介质,将电能以无线的形式由能量供给端输送到用电设备的一种新型电能传输方式。 [0003] The wireless power transmission (wireless power transmiss1n, WPT) technology known as non-contact power transmission technology, is the essence of the technique using electromagnetic waves, high-frequency power magnetic field, microwave, radio waves and the RF electromagnetic near-field coupling is present in a physical space, etc. the energy transfer medium, the electrical energy supplied by the energy in the form of a wireless terminal transmission power delivered to a novel way of electrical equipment.

[0004]通常,无接触电能传输方式主要有4种:电场耦合方式、电磁感应方式、磁共振方式和无线电波方式。 [0004] Generally, non-contact power transmission mode, there are four kinds: electric field coupling method, an electromagnetic induction method, a magnetic resonance method and the radio wave system. 由于目前研究最广泛的是基于电磁场近场耦合的WPT技术,因此狭义的WPT技术专指这种基于电磁感应原理或电磁谐振原理,实现用电设备在小尺度范围内以非电气接触方式从电网获取电能的技术,其传输空间尺度一般在几厘米到上百厘米之间,即是短距离WPT技术,主要是为了解决如何对移动用电设备安全、灵活地进行充电的问题。 Since the present study is based on the most widely WPT art electromagnetic near-field coupling, and therefore narrow WPT this technique specifically refers to the principle of electromagnetic induction based on the electromagnetic resonance principle or, in the electrical equipment to realize a small scale in a non-contact manner from the electrical grid draw power technique, which typically transmit spatial scale between a few centimeters to hundreds of centimeters, i.e. WPT short-range technology, mainly to solve the problem of how to secure mobile electrical equipment, flexible charging.

发明内容 SUMMARY

[0005]本发明目的是提供一种节能、环保、高效的电动汽车的无线电能传输系统。 [0005] The object of the present invention is to provide an energy-saving, environmentally friendly, efficient electric vehicle wireless power transmission system.

[0006]为了解决上述技术问题,本发明采用的技术方案是: [0006] To solve the above technical problem, the technical solution adopted by the invention are:

[0007] —种电动汽车的无线电能传输系统,包括发射端和接收端; [0007] - species electric vehicle wireless power transmission system comprising a transmitting end and a receiving end;

[0008]所述发射端主要由大容量高频电源和带有磁屏蔽的发射单元及相关控制电路组成; [0008] The transmitting end primarily by the large-capacity and high-frequency power transmission unit with a magnetic shield and associated control circuit;

[0009]所述接收端主要包括带有磁屏蔽的接收单元、充电电路和相关控制单元; [0009] The receiving end comprises a main receiving unit having a magnetic shield, the charging circuit and the associated control unit;

[0010]所述充电电路包括整流电路、调节电路和保护电路; [0010] The charging circuit includes a rectifier circuit, regulating circuit and a protection circuit;

[0011]所述控制单元来解决发射端输出功率的稳定性问题。 [0011] The control unit transmitting end to solve the problem of the stability of output power.

[0012]进一步的,所述发射单元上设置有传感器。 [0012] Further, the transmitting unit is provided on the sensor. 感应车辆位置信息,决定发射单元何时工作,减少能源浪费。 Sensing vehicle location information to determine when the transmitting unit of work, to reduce energy waste.

[0013]本发明的有益效果是: [0013] Advantageous effects of the present invention are:

[0014]本发明通过将发射端埋设在道路下方,从而实现对电动汽车在行驶中的电能供给,配有保护电路的超级电容,有效避免了电池续航能力弱、充电时间长的弊端,也极大减轻了电动汽车的重量,节能、环保、高效。 [0014] The present invention, by the transmitting end is embedded in the bottom of the road, in order to achieve the power supply to the electric vehicle in traveling, with a protection circuit supercapacitor avoid weak battery life, a long charging time of drawbacks, is also very large reduce the weight of electric vehicles, energy-saving, environmental protection, and efficient.

附图说明 BRIEF DESCRIPTION

[0015]下面结合附图和具体实施方式对本发明作进一步详细的说明。 [0015] The present invention will be further described in detail in conjunction with accompanying drawings and specific embodiments.

[0016]图1为发射端示意图。 [0016] FIG. 1 is a schematic side emission.

[0017]图2为接收端示意图。 [0017] FIG. 2 is a schematic diagram of the receiving end.

[0018]图3为本发明示意图。 [0018] FIG. 3 is a schematic of the present invention.

具体实施方式 Detailed ways

[0019]以下结合附图对本发明的实施例进行详细说明,但是本发明可以由权利要求限定和覆盖的多种不同方式实施。 [0019] The following embodiments in conjunction with the accompanying drawings of embodiments of the present invention will be described in detail, but the present invention can be defined by the claims, and many different embodiments of cover.

[0020]如图1所示,本发明公开一种电动汽车的无线电能传输系统,系统采用感应耦合与电磁谐振协同工作的方式,它包含发射端和接收端2个部分,其频率通过补偿电容调节一致。 [0020] 1, the wireless power transmission system of the present invention discloses an electric vehicle, the system uses an inductive coupling cooperating with the electromagnetic resonance, comprising transmitter and receiver ends of two parts, by a frequency compensation capacitor adjust the consistency. 发射单元埋置在地面下方,接收单元放置在电动汽车的下方,大容量高频电源输入电能经过相关控制电路将能量变换后通过发射单元向上方发射,经过15〜30cm左右高度的空气传播,接收单元拾取到能量后,经过能量变换装置把高频的交流电能转化成电动车所需要的电能。 Buried in the ground beneath the transmitting unit, the receiving unit is placed beneath the electric vehicle, the large-capacity high-frequency power through the associated control circuitry input power energy converting means upward through transmit, after about 15~30cm airborne height, receiver after the pickup unit to the energy, the energy conversion device via the high-frequency AC power into electric energy of electric vehicles require. 系统工作时为了减少无效的电能供给,每个发射单元上的传感器感应到车辆接近后,向大容量高频电源发送信息,大容量高频电源中的逆变器将有车辆通过的发射单元开启,车辆经过的发射单元开始工作。 When the system operates in order to reduce an invalid power supply, on each of the sensor units transmit sensor close to the rear of the vehicle, transmitting information to a large-capacity high-frequency power, large-capacity high-frequency inverter power supply unit of the vehicle through the emitter opening , passing vehicles emitting unit to work. 如果车辆移动到下一段,前一个发射单元关闭,下一个发射单元开始工作。 If the vehicle is moved to the next section, a transmitting unit is closed before the next transmitter unit begins operating.

[0021]发射端结构设计,发射端电路主要由大容量高频电源和带有磁屏蔽的发射单元及相关控制电路组成。 [0021] The structural design of the transmitter, the transmitter circuit mainly by the large-capacity and high-frequency power transmission unit and associated control circuitry with a magnetic shield composition. 大容量高频电源输入380V交流电,经过交流-直流-交流变换,输出高频信号,输出功率可根据接收端功率及相关实验结果确定。 Bulk frequency power source 380V AC input, via AC - DC - AC converter, a high-frequency output signal, the output power may be determined based on the reception of the power and correlation results. 多个相同尺寸的带有磁屏蔽的发射单元沿直线铺设,实现对电动汽车的实时供电。 A plurality of transmitting units of the same size along a straight line with the magnetic shield laying, real-time supply of the electric vehicle.

[0022]接收端结构主要包括带有磁屏蔽的接收单元、充电电路和相关控制单元。 [0022] receiving end structure includes a receiving unit having a magnetic shield, the charging circuit and the associated control unit. 带有磁屏蔽的接收单元有多个,接收能量,每个接收单元通过串联补偿电容将频率调节为发射端的谐振频率。 A receiving unit having a plurality of magnetic shielding, the energy received, each receiving unit via series capacitor to adjust the resonance frequency of the frequency of the transmitter. 充电电路则包括整流电路、调节电路和保护电路。 The charging circuit includes a rectifier circuit, a regulating circuit and a protection circuit. 电动车行驶过程中,接收单元与发射单元的相对位置不能严格对齐,导致系统耦合参数变化,电能接收端的接收功率不稳定。 Electric car during running, the relative position of the receiving unit and the transmitting unit can not be exactly aligned, resulting in the coupling system parameters, the power receiving terminal for receiving power instability. 因此,必须利用控制单元来解决输出功率的稳定性问题。 Thus, the control unit must be used to solve the problem of the stability of output power.

[0023]以上所述的本发明实施方式,并不构成对本发明保护范围的限定。 [0023] The above-described embodiments of the present invention, not to limit the scope of the present invention. 任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的权利要求保护范围之内。 Any modifications within the spirit and principle of the present invention, equivalent substitutions and improvements should be included within the protection scope claimed in the claims of the present invention.

Claims (3)

1.一种电动汽车的无线电能传输系统,其特征在于,包括发射端和接收端; 所述发射端主要由大容量高频电源和带有磁屏蔽的发射单元及相关控制电路组成; 所述接收端主要包括带有磁屏蔽的接收单元、充电电路和控制单元; 所述控制单元来解决发射端输出功率的稳定性问题。 An electric vehicle wireless power transmission system comprising a transmitting end and a receiving end; the transmitting terminal is mainly composed of large-capacity and high-frequency power transmission unit and associated control circuitry with a magnetic shield composition; the receiving end mainly includes a receiving unit having a magnetic shield, the charging circuit and a control unit; control means to solve the problem of the stability of the transmitter output power.
2.根据权利要求1所述电动汽车的无线电能传输系统,其特征在于,所述充电电路则包括整流电路、调节电路和保护电路。 2. The motor-vehicle wireless power transmission system according to claim, characterized in that the said charging circuit includes a rectifier circuit, a regulating circuit and a protection circuit.
3.根据权利要求1所述电动汽车的无线电能传输系统,其特征在于,所述发射单元上设置有传感器。 3. The motor-vehicle wireless power transmission system according to claim, wherein the transmitter is provided with a sensor unit.
CN201610794685.0A 2016-08-31 2016-08-31 Wireless power transmission system of electric automobile CN106347152A (en)

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