CN102931735B - Non-contact power supply system and method for mobile device moving along track - Google Patents
Non-contact power supply system and method for mobile device moving along track Download PDFInfo
- Publication number
- CN102931735B CN102931735B CN201210441054.2A CN201210441054A CN102931735B CN 102931735 B CN102931735 B CN 102931735B CN 201210441054 A CN201210441054 A CN 201210441054A CN 102931735 B CN102931735 B CN 102931735B
- Authority
- CN
- China
- Prior art keywords
- mobile device
- primary coil
- iron core
- alternating current
- rectifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention relates to a non-contact power supply system for a mobile device moving along a track. The system comprises a first rectifier, an inverter, a transformer and a second rectifier, wherein the first rectifier converts alternating current which is input from the outside into direct current; the inverter converts the direct current which is output by the first rectifier into alternating current; the transformer comprises a primary iron core and a secondary iron core which are separated, a primary winding is wound on the primary iron core, and a secondary winding is wound on the secondary iron core; and the second rectifier is connected with the mobile device, the alternating current which is output by the inverter is input into the primary winding, the sensed alternating current in the secondary winding is converted into direct current through the second rectifier, and then the direct current is provided for the mobile device. The invention also relates to a non-contact power supply device of the mobile device moving along the track. According to the system and the method, the operation is simple, the restriction of speed of the mobile device in the prior is reduced, and energy conservation and safety are achieved.
Description
Technical field
The present invention relates to a kind of electric power system, particularly for the contactless power supply system of Orbiting mobile device.
The invention still further relates to a kind of non-contact power method for Orbiting mobile device.
Background technology
Subway, light rail train and magnetic suspension train etc. all belong to the conveying arrangement along rail moving, and the loading dolly on production line also belongs to and moves along special production line the device transmitting goods.All need power supply during these plant running, traditional power supply mode has two kinds: " dragging plait " or laying are by trajectory.So-called " dragging plait " refers to the maximum distance adopting flexible cable supply lines to be extended to needs.But when making to power in this way, line loss is serious, poor reliability.Lay and refer to that the shiftable haulage line along device lays special power supply rail by trajectory, this power supply rail with fixing on the mobile device by flow shoe contact, by this by fluent piece by delivery of electrical energy to mobile device, this applies the most general current collection mode at present.
Fig. 1 is traditional schematic diagram by trajectory electric power system.Traditional passes through rectifier 2 rectifying and wave-filtering by ground installation by the alternating current 1 on ground by trajectory electric power system 10, is translated into direct current; Then this direct current is directly communicated to two of the track both sides being arranged on mobile device by (one connects galvanic anode, and another root connects galvanic negative terminal) on trajectory 3; Simultaneously on mobile device 5, pantagraph current collector 4 is installed, by pantagraph current collector 4 and the contact by trajectory 3, by by the DC power transmission on trajectory 3 to mobile device 5(and load) on.
Mainly there is some deficiency following in the method for supplying power to of this contact:
First, in order to ensure pantagraph current collector with by the strict contact between trajectory, in the process of system cloud gray model, needing larger external force makes pantagraph current collector press by trajectory, friction between the two can be increased like this, limit the acceleration of mobile device, therefore be unfavorable for the raising of mobile device speed.
Meanwhile, due to pantagraph current collector with by the long-term friction of trajectory, pantagraph current collector and all will through frayed by trajectory, the effect of friction even may damage mobile device, and whole transportation system can be made time serious normally to run.In this case, need to stop transport and carry out the inspection and maintenance of equipment, cause high cost.
In addition, the powering mode of whole system is more inflexible, is unfavorable for manipulation flexibly and saves electric energy.
In order to solve the problems referred to above that contact method of supplying power to of the prior art produces, need a kind of more advanced contactless power supply system of research and method, the present invention is just based on this.
Summary of the invention
In order to solve the component wear that traditional electric power system for Orbiting mobile device and method cause serious, accelerate limited, safeguard and the defect such as maintenance workload is huge, the present invention proposes a kind of novel contactless power supply system for Orbiting mobile device and method.
According to an aspect of the present invention, propose a kind of contactless power supply system for Orbiting mobile device, comprising: the alternating current that outside inputs is converted to galvanic first rectifier; The direct current that first rectifier exports is converted to the inverter of alternating current; Transformer, it comprises the elementary iron core of separation and secondary iron core, and elementary iron core is wound with primary coil, and secondary iron core is wound with secondary coil; The second rectifier be connected with mobile device.The alternating current that wherein this inverter exports inputs primary coil, and the alternating current responded in secondary coil changes direct current into by the second rectifier, is supplied to mobile device afterwards.
In one embodiment, primary coil is fixed in the power rail of mobile device, and secondary coil is fixing on the mobile device.
In one embodiment, primary coil comprises the some primary coil parts be arranged in apart from each other in power rail, and the length of each primary coil part is greater than the length of mobile device.
In one embodiment, inverter only divides with the primary coil part corresponding with the region residing for mobile device in primary coil and adjacent two primary coil section and is connected.
In one embodiment, the frequency of the alternating current that the frequency of alternating current that described inverter exports inputs higher than outside.
In one embodiment, the waveform of the alternating current of inverter output comprises square wave or sine wave.
In one embodiment, the elementary iron core of transformer or the shape of secondary iron core comprise U-shaped iron core or E shaped iron core.
Another aspect of the present invention, proposes the method that a kind of use system according to the present invention is powered for Orbiting mobile device.
The present invention has two-part transformer disconnected from each other by design, and two parts of transformer are arranged on power rail and mobile device respectively, compensate for power rail and the defect by fluid contact friction in prior art, be thus conducive to the service life of prolongation mobile device and promote its acceleration upper limit.
In addition, the present invention adopts and primary coil is divided into the mode of several primary coil parts to arrange the primary coil on electrical supply rail, thus segmentation is excitatory, this be conducive to efficient, energy-conservation, utilize electric energy neatly, for the operation of whole system brings great convenience, can not whole system be affected when certain primary coil part runs into fault simultaneously, enhance the fault-resistant ability of system.
Accompanying drawing explanation
Also will be described in more detail the present invention with reference to accompanying drawing based on embodiment hereinafter.Wherein:
Fig. 1 is traditional schematic diagram by trajectory electric power system;
Fig. 2 is the schematic diagram according to contactless power supply system of the present invention;
Fig. 3 is the schematic diagram of the first rectifier according to contactless power supply system of the present invention in an embodiment;
Fig. 4 a is the schematic diagram of the inverter according to contactless power supply system of the present invention in an embodiment;
Fig. 4 b is the schematic diagram of the voltage waveform that the inverter according to contactless power supply system of the present invention in an embodiment exports;
Fig. 5 is the schematic diagram of the transformer according to contactless power supply system of the present invention in an embodiment;
Fig. 6 is the schematic diagram according to contactless power supply system of the present invention with multiple primary coil part.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 2 is according to the contactless power supply system 20 for Orbiting mobile device of the present invention.Wherein the alternating current 6 that provides of ground power supply is first by the first rectifier 7.Alternating current 6 rectifying and wave-filtering that ground power supply provides by the first rectifier 7, is converted to direct current.
In one embodiment, the alternating current 6 that ground power supply provides is three-phase alternating current.First rectifier 7 is such as the three-phase diode uncontrollable rectifier circuit of the routine shown in Fig. 3, and three-phase alternating current 6 is converted to direct current.Because those skilled in the art's reference accompanying drawing 3 readily understands the operation principle of the first rectifier 7 in this embodiment, no longer specifically describe this circuit here.
With reference to Fig. 2, the direct current that the first rectifier 7 exports is input to inverter 8.This electric current is converted to alternating current by inverter 8.
In a preferred embodiment, the frequency of alternating current that inverter 8 exports is above the ground level the frequency of alternating current 6 that power supply provides.In one embodiment, inverter 8 output frequency is the alternating current of 20kHz ~ 40kHz
Fig. 4 a shows the circuit diagram of inverter 8.Wherein control signal C
1and C
2control inversion pipe V
1, V
2, V
3, and V
4.Wherein V
1and V
4conducting simultaneously or disconnection, V
2and V
3conducting simultaneously or disconnection.
In one embodiment, in the front half period, control signal makes V
1and V
4conducting, and make V
2and V
3disconnect, now output end voltage U
abfeature be:
Polarity: a holds as "+", and b end is "-", U
abfor "+";
Amplitude: U
m=U
d.(U
mthe i.e. amplitude of inverter 8 output voltage, U
dfor the amplitude of the input voltage that inverter 8 accepts.）
In the later half cycle, control signal makes V
2and V
3conducting, and V
1and V
4disconnect, now output end voltage U
abfeature be:
Polarity: a holds as "-", and b end is "+", U
abfor "-";
Amplitude: U
m=U
d.
So replace down again and again, then what a, b two ends exported is alternating voltage.
In one embodiment, the waveform of the alternating voltage of a, b two ends output is square wave as shown in Figure 4 b.
In another embodiment, can by the conducting of each inversion pipe of control inverter 8 and turn-off time, the waveform of the alternating voltage that a, b two ends of inverter 8 are exported is for sinusoidal wave.
Referring again to Fig. 2, inverter 8 export alternating current be input to be wrapped in transformer 9 elementary iron core (in Fig. 2, it is arranged in the left hand half of transformer 9) on primary coil.Due to electromagnetic induction principle, the secondary coil be wrapped on the secondary iron core (in Fig. 2, it is positioned at the right hand half of transformer 9) of transformer 9 will produce the induced voltage exchanged, this induction alternating current is converted to direct current by the second rectifier 10, is supplied to Orbiting mobile device 11.
Fig. 5 is the schematic diagram of transformer 9.In one embodiment, transformer 9 comprises two iron cores of separation, is namely positioned at the elementary iron core in left side in Figure 5 and is positioned at the secondary iron core on right side.The outside of elementary iron core be wound with electric current by primary coil, the outside of secondary iron core be wound with electric current by secondary coil.Two parts that in Fig. 5, numeral 12 indicates are air gap, and namely not having physical contact between two iron cores, is unsettled each other.
In one embodiment, two iron cores of transformer 9 are U-shaped iron core.
In another embodiment, two iron cores of transformer 9 are E shaped iron core.
In one embodiment, primary coil is fixed in the power rail parallel with its operation rail of mobile device 11, and secondary coil is fixed on mobile device 11, moves with mobile device 11.The delivery of electrical energy that ground power supply is provided by electromagnetic induction principle by transformer 9, to mobile device 11, does not need the contact between mobile device 11 and power rail simultaneously.This had both avoided the wearing and tearing because contact friction causes, and improve the service life of mobile device 11, and almost nil frictional force significantly reduces the resistance in mobile device 11 accelerator simultaneously, was conducive to the speed improving mobile device 11.
Referring again to Fig. 2, the current transitions that the secondary coil of transformer 9 exports is direct current by the second rectifier 10.Operation principle and first rectifier 7 of the second rectifier 10 are basically identical, one of ordinary skill in the art will readily recognize that and repeat no more herein.
Direct current after the second rectifier 10 rectification can be just mobile device 11(load) power.
In one embodiment, the power rail parallel along the operation rail with mobile device 11 lays primary coil (being wrapped the coil of the elementary iron core of transformer 9), the primary coil part that primary coil is divided into several to be separated from each other according to the length of mobile device 11 and the speed of service, the length of each primary coil part is all greater than the length of mobile device 11.When mobile device 11 move on orbit to divide corresponding position with some primary coil section time, the output of inverter 8 is accessed adjacent two the primary coil parts of this primary coil part and front and back thereof, carry out excitatory, the primary coil part no power on other positions.Do not need like this to all primary coil section in whole power rail divide carry out excitatory, can efficiently, flexibly, low-loss land productivity electric energy.Further, because each primary coil part is mutually independent, when certain primary coil section divide break down time, remaining primary coil part normal power supply, unaffected.Only need the primary coil part changing fault in time, large-scale infringement can not be caused to whole system.
On the other hand, the present invention have also been devised the method for being powered for mobile device by contactless power supply system according to the present invention: powered to system 20 according to the present invention by ground power supply, and electric current is input in the first rectifier 7 of system 20.First rectifier 7 converts this electric current to direct current and inputs to inverter 8, inverter 8 converts input electric current wherein to primary coil that alternating current inputs to transformer 9, the secondary coil of transformer 9 produces induction alternating current, be delivered to the second rectifier 10 to convert direct current to, then this direct current is supplied to mobile device 11.
In one embodiment, run according to system 20 of the present invention according to the method that method of the present invention adopts segmentation excitatory: as shown in Figure 6, by the primary coil of transformer 9 with " part " for unit broken-up laying is in power rail, namely in power rail, arrange several primary coil parts be separated from each other (namely 911 ~ 915 etc.), each primary coil part is all connected to the output of inverter 8 by switch, the secondary coil of transformer 9 is denoted as 920, and the length of each primary coil part is all greater than the length of mobile device 11; When operational system 20, first the position residing for mobile device 11 is detected, when supposing that mobile device 11 moves to the position corresponding with primary coil part 913, the switch by 912,913,914 3 primary coil parts closes the output being connected to inverter 8.Remaining primary coil part no power, does not work.When mobile device 11 moves to the position corresponding with primary coil part 912, the switch of closed primary coil part 911, disconnects the switch of primary coil part 914; When mobile device 11 moves to the position corresponding with primary coil part 914, the switch of closed primary coil part 915, disconnects the switch of primary coil part 912.Any like this position only have corresponding to mobile device 11 position and before and after it altogether three primary coil parts by excitatory power supply.So can put forward high-octane service efficiency, reduce the energy loss of whole system 20, and be convenient to operating system 20 neatly, improve the fault-resistant ability of system 20 simultaneously.
Although invention has been described with reference to preferred embodiment, without departing from the scope of the invention, various improvement can be carried out to it.The present invention is not limited to embodiment disclosed in literary composition, but comprises all technical schemes fallen in the scope of claim.
Claims (5)
1., for a contactless power supply system for Orbiting mobile device, comprising:
The alternating current that outside inputs is converted to galvanic first rectifier;
The direct current that described first rectifier exports is converted to the inverter of alternating current;
Transformer, it comprises the elementary iron core of separation and secondary iron core, and described elementary iron core is wound with primary coil, and described secondary iron core is wound with secondary coil;
The second rectifier be connected with mobile device,
It is characterized in that, the alternating current that described inverter exports inputs described primary coil, and the alternating current responded in described secondary coil changes direct current into by described second rectifier, is supplied to described mobile device afterwards,
Described primary coil comprises the some primary coil parts be arranged in apart from each other in power rail, and the length of each primary coil part is greater than the length of mobile device,
Described inverter only divides with the primary coil part corresponding with the region residing for described mobile device in described primary coil and adjacent two primary coil section and is connected, described primary coil is fixed in the power rail of described mobile device, and described secondary coil is fixed on described mobile device.
2. system according to claim 1, is characterized in that, the frequency of the alternating current that the frequency of the alternating current that described inverter exports inputs higher than outside.
3. system according to claim 1, is characterized in that, the waveform of the alternating current that described inverter exports comprises square wave or sine wave.
4. system according to claim 1, is characterized in that, the described elementary iron core of described transformer or the shape of described secondary iron core comprise U-shaped iron core or E shaped iron core.
5. use the method that the system according to any one of claim 1 to 4 is powered for Orbiting mobile device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441054.2A CN102931735B (en) | 2012-11-07 | 2012-11-07 | Non-contact power supply system and method for mobile device moving along track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441054.2A CN102931735B (en) | 2012-11-07 | 2012-11-07 | Non-contact power supply system and method for mobile device moving along track |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102931735A CN102931735A (en) | 2013-02-13 |
| CN102931735B true CN102931735B (en) | 2015-03-25 |
Family
ID=47646472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210441054.2A Active CN102931735B (en) | 2012-11-07 | 2012-11-07 | Non-contact power supply system and method for mobile device moving along track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102931735B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633747B (en) * | 2013-11-12 | 2017-02-15 | 天津工业大学 | Electromagnetic resonance wireless power supply system for subway |
| CN103779971B (en) * | 2014-01-29 | 2015-12-09 | 中国科学院电工研究所 | A kind ofly adopt the contactlessly powered system of the movable type of sectional power supply |
| CN104998420A (en) * | 2015-07-27 | 2015-10-28 | 东南大学 | Rail transport electronic toy train employing sectional switch-type wireless power supply |
| CN105914801B (en) * | 2016-05-17 | 2018-03-16 | 西南交通大学 | A kind of radio energy transmission system primary side electric supply installation and its switching method for being segmented switching |
| CN106026209A (en) * | 2016-08-01 | 2016-10-12 | 安徽贝莱电子科技有限公司 | Non-contact power supply system |
| CN108808873B (en) * | 2017-05-03 | 2021-10-15 | 中车株洲电力机车研究所有限公司 | Non-contact rail transit power supply system |
| CN108082010A (en) * | 2017-08-24 | 2018-05-29 | 薛应东 | The application of railroad train electric power system |
| CN111483323B (en) * | 2019-01-28 | 2023-06-09 | 中车株洲电力机车研究所有限公司 | Non-contact power supply system for rail transit |
| DE102019123392B3 (en) * | 2019-09-02 | 2021-02-11 | Hiwin Technologies Corp. | LINEAR TRANSMISSION DEVICE WITH WIRELESS POWER SUPPLY |
| CN110549855A (en) * | 2019-09-16 | 2019-12-10 | 中车株洲电力机车有限公司 | Contactless induction power supply system of maglev train |
| CN113492884B (en) * | 2020-03-20 | 2022-09-27 | 株洲中车时代电气股份有限公司 | Three-source hybrid power locomotive and traction transmission system thereof |
| US20230147692A1 (en) * | 2020-04-16 | 2023-05-11 | Crrc Zhuzhou Electric Locomotive Research Institute Co., Ltd. | Method and system device for multiple load-bearing of linear motor for magnetic levitation transportation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1659757A (en) * | 2002-06-06 | 2005-08-24 | 万普弗勒尔股份公司 | Device for inductively transmitting electrical energy |
| CN201163726Y (en) * | 2008-01-04 | 2008-12-10 | 上海海事大学 | Non-contact electric energy transmission equipment |
| CN101326706A (en) * | 2005-11-30 | 2008-12-17 | Thk株式会社 | Wireless actuator |
| CN101378208A (en) * | 2008-08-30 | 2009-03-04 | 江苏天奇物流系统工程股份有限公司 | Control system for rail type conveyor |
| CN102666181A (en) * | 2009-12-21 | 2012-09-12 | 庞巴迪运输有限公司 | System for transferring energy to a vehicle and method of operating the system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203039439U (en) * | 2012-11-07 | 2013-07-03 | 湖南银河电气有限公司 | Non-contact power supply equipment for mobile device running along track |
-
2012
- 2012-11-07 CN CN201210441054.2A patent/CN102931735B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1659757A (en) * | 2002-06-06 | 2005-08-24 | 万普弗勒尔股份公司 | Device for inductively transmitting electrical energy |
| CN101326706A (en) * | 2005-11-30 | 2008-12-17 | Thk株式会社 | Wireless actuator |
| CN201163726Y (en) * | 2008-01-04 | 2008-12-10 | 上海海事大学 | Non-contact electric energy transmission equipment |
| CN101378208A (en) * | 2008-08-30 | 2009-03-04 | 江苏天奇物流系统工程股份有限公司 | Control system for rail type conveyor |
| CN102666181A (en) * | 2009-12-21 | 2012-09-12 | 庞巴迪运输有限公司 | System for transferring energy to a vehicle and method of operating the system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102931735A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102931735B (en) | Non-contact power supply system and method for mobile device moving along track | |
| CN101567570B (en) | Non-contact induction type charging system | |
| GB201109825D0 (en) | System and method for tranferring electric energy to a vehicle using constant current operation of segments of a conductor arrangement | |
| CN107128196A (en) | mining electric locomotive wireless power supply system | |
| CN102868234A (en) | Non-contact power feeding apparatus | |
| CN203039439U (en) | Non-contact power supply equipment for mobile device running along track | |
| CN106740283A (en) | A kind of flexible cophase supply method and its device for electric railway | |
| CN101817316B (en) | Same-phase traction power supply system of electrified railway | |
| CN203592908U (en) | Direct current-alternating current traction power supply system | |
| CN102963272B (en) | Through cophase power supply system for alternating-current electrified railway | |
| CN103532251A (en) | Electromagnetic induction charging system of energy-storage electromobile | |
| CN105501076A (en) | Device and method for recycling neutral-section passing energy of train | |
| CN105471122A (en) | Wireless power supply system for straddle type monorail | |
| CN104578455A (en) | Novel high-power wireless charging system and control method thereof | |
| CN208896884U (en) | One kind being suitable for medium-and low-speed maglev train traction system and magnetic suspension traffic system | |
| CN215507837U (en) | Power supply applied to logistics sorting system and logistics sorting system | |
| CN206947961U (en) | A kind of PWM rectifier direct current supply pilot system based on multiplex | |
| CN103633747B (en) | Electromagnetic resonance wireless power supply system for subway | |
| CN106655262B (en) | A kind of elevator energy recycling wireless charging system | |
| CN208337240U (en) | A kind of wireless power supply system and transportation system for the vehicles | |
| CN202847469U (en) | Non-contact power supply electric-electric hybrid intelligence carrying wagon | |
| CN203504307U (en) | Energy storage-type electric vehicle electromagnetic induction charging system | |
| CN204304626U (en) | A kind of distributed magnetic path non-contact electric energy transmission system | |
| CN209593105U (en) | A kind of monitoring system of non-contact power supply system | |
| CN203734564U (en) | Portable direct power supply inverter power source for passenger cars |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181122 Address after: 410000 No. 301, Building A-1, Hunan Lugu Science and Technology Incubator Co., Ltd. No. 229 Tongzipo West Road, Changsha High-tech Zone, Hunan Province Patentee after: HUNAN YINHE TIANTAO TECHNOLOGY CO., LTD. Address before: 410012 Computer Factory of Changsha National Defense University of Science and Technology, Hunan Province Patentee before: Hunan Yinhe Electric Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Room 101-301, building D3, Jinrong Wangcheng science and Technology Industrial Park, 858 Purui West Road, Wangcheng economic and Technological Development Zone, Changsha City, Hunan Province, 410200 Patentee after: Hunan Tiantao Technology Co.,Ltd. Address before: 410000 No. 301, Building A-1, Hunan Lugu Science and Technology Incubator Co., Ltd. No. 229 Tongzipo West Road, Changsha High-tech Zone, Hunan Province Patentee before: HUNAN YINHE TIANTAO TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |