CN217720839U - Rail train wireless power transmission system capable of dynamically and accurately supplying power - Google Patents
Rail train wireless power transmission system capable of dynamically and accurately supplying power Download PDFInfo
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- CN217720839U CN217720839U CN202221309118.9U CN202221309118U CN217720839U CN 217720839 U CN217720839 U CN 217720839U CN 202221309118 U CN202221309118 U CN 202221309118U CN 217720839 U CN217720839 U CN 217720839U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
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- 230000018109 developmental process Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000005674 electromagnetic induction Effects 0.000 description 6
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- 239000002699 waste material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model discloses a rail train wireless electric energy transmission system capable of dynamically and accurately supplying power, which comprises an energy transmitting coil, an energy receiving device, a vehicle information collector, a vehicle control signal transmitter, a vehicle control signal receiver and a power tracking controller; the vehicle information collector and the vehicle control signal transmitter are both arranged at the front end of the train; the energy transmitting coil is arranged on a train track, and the energy receiving device is arranged at the bottom of the train. The utility model provides a real time monitoring, real time adjustment's accurate wireless power supply system of developments. Real-time parameters such as vehicle load state, residual electric quantity, battery temperature and input voltage are compared with a preset vehicle control signal, namely a power supply power threshold ratio, the power supply power of the energy transmitting coil and the duty ratio of the DC/DC converter are continuously adjusted, dynamic accurate power supply is achieved, energy consumption is reduced, power supply efficiency is improved, and the method has a wide application scene in the field of rail transit.
Description
Technical Field
The utility model belongs to the technical field of electromagnetic induction type wireless power transmission, concretely relates to rail train wireless power transmission system of dynamic accurate power supply.
Background
The electromagnetic induction type wireless power transmission system can transmit electric energy from a transmitting device to a receiving device in a non-contact manner by coupling a high-frequency magnetic field between an energy transmitting coil and an energy pickup coil by using the principle of electromagnetic induction. Compared with the traditional wired power supply mode, the power supply mode has the advantages of no need of connecting wires, no mechanical friction, flexibility, convenience, no exposure of a power supply interface, good safety and high reliability, and has wide application scenes in the field of rail transit.
At present, three wireless power supply modes are available: electromagnetic induction (short-range wireless power supply by using a magnetic field generated by a current through a coil), electromagnetic resonance (short-range wireless power supply by using an electromagnetic coupling resonance effect), and electromagnetic wave radiation (power is converted into an electric wave to transmit power in a radiation manner). The electromagnetic resonance type coil is too large, and the specific application is not easy to realize. The electromagnetic wave radiation type circuit is too complicated and high in cost. Therefore, the invention adopts the electromagnetic induction type wireless power supply technology, and has simple and safe circuit design and low cost.
Along with the more intensive research on the application of an induction electric energy transmission system in the field of rail transit in recent years, the dynamic power supply problem of a series of rail trains in the running process is exposed, and the induction electric energy transmission system comprises that the traditional high-power wireless power supply system is in a cross-current control mode, and when the rail trains are in light load or no load, an electric energy supply end still keeps constant current work, so that the serious waste of electric energy is caused; the electric automobile or the rail train which passes above the energy transmitting coil and is provided with the energy pickup coil is directly powered without distinction, so that the safety problems of energy waste, efficiency reduction and the like are caused. Therefore, the safety and the high efficiency of the whole wireless power supply system in the operation process are ensured by identifying the power-taking grade of the rail train and correspondingly adjusting the output power of the energy transmitting coil.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned among the prior art, the utility model provides a pair of rail train wireless power transmission system of accurate power supply of movable state has solved the electric energy that the constant current control mode leads to in the wireless power supply system working process of electromagnetic induction formula is extravagant, the problem that power supply efficiency is low, has guaranteed that wireless power supply is more accurate and high-efficient.
In order to achieve the purpose of the invention, the utility model adopts the technical scheme that: a rail train wireless electric energy transmission system capable of dynamically and accurately supplying power comprises an energy transmitting coil, an energy receiving device, a vehicle information collector, a vehicle control signal transmitter, a vehicle control signal receiver and a power tracking controller; the vehicle information collector and the vehicle control signal transmitter are both arranged at the front end of the train; the energy transmitting coil is arranged on a train track, and the energy receiving device is arranged at the bottom of the train.
Further: the vehicle information collector, the vehicle control signal transmitter, the vehicle control signal receiver, the power tracking controller and the energy transmitting coil are sequentially in communication connection.
The beneficial effects of the above further scheme are: according to the numerical value signal sent by the vehicle control signal transmitter in real time, the power tracking controller compares the received digital signal with a preset vehicle control signal, namely a power supply power threshold ratio, and sends a regulation and control instruction to control the output power of the energy transmitting coil according to an information processing result, so that the wireless power supply of the rail train is more accurate and efficient.
Further: the model of the vehicle information collector is CBAH01-B01, the model of the vehicle control signal emitter is E8257D, the model of the vehicle control signal receiver is MRM080, and the model of the power tracking controller is S7-1200.
Further, the method comprises the following steps: and the vehicle control signal receiver, the power tracking controller and the energy transmitting coil are all connected with a power frequency alternating current power supply.
Further, the method comprises the following steps: the energy receiving device comprises an energy receiving coil, a load coil, a bridge rectifier circuit and a DC/DC converter;
the energy receiving coil is coaxial with the load coil, and the load coil is of a spiral structure; the load coil, the bridge rectifier circuit and the DC/DC converter are electrically connected in sequence; the DC/DC converter is also connected with the power tracking controller.
The beneficial effects of the above further scheme are: the power tracking controller compares the set vehicle control signal-power supply power threshold value ratio with the digital signal, can accurately judge whether the train needs to be charged and needs to be supplied with more power, and achieves the purposes of getting electricity as required and accurately supplying power of the train by controlling the output power of the energy transmitting coil and the duty ratio of the DC/DC converter, thereby avoiding unnecessary electric energy waste.
The beneficial effects of the utility model are that: the utility model provides a real time monitoring, real time adjustment's accurate wireless power supply system of developments. Real-time parameters such as vehicle load state, residual electric quantity, battery temperature, input voltage and the like are compared with a preset vehicle control signal, namely a power supply threshold ratio, the power supply power of the energy transmitting coil and the duty ratio of the DC/DC converter are continuously adjusted, dynamic and accurate power supply is realized, energy consumption is reduced, power supply efficiency is improved, and the method has a wide application scene in the field of rail transit.
Drawings
Fig. 1 is a block diagram of the system structure of the present invention;
Detailed Description
The following description of the embodiments of the present invention is provided to enable those skilled in the art to understand the invention, and it is to be understood that the invention is not limited to the details of the embodiments, but rather, the invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined and defined by the appended claims.
As shown in figure 1 of the drawings, in which,
in an embodiment of the present invention, a rail train wireless power transmission system capable of supplying power dynamically and accurately includes an energy transmitting coil, an energy receiving device, a vehicle information collector, a vehicle control signal transmitter, a vehicle control signal receiver, and a power tracking controller; the vehicle information collector and the vehicle control signal transmitter are both arranged at the front end of the train; the energy transmitting coil is arranged on a train track, and the energy receiving device is arranged at the bottom of the train.
The vehicle information collector is used for collecting vehicle information, and comprises a load state, a residual capacity, a battery temperature and an input voltage. The vehicle control signal transmitter is used for converting the acquired vehicle information into a digital signal and transmitting the digital signal to the vehicle control signal receiver. The vehicle control signal receiver is used for transmitting the digital signal to the power tracking controller. The power tracking controller is used for controlling the output power of the energy transmitting coil according to a preset train control signal, namely a power supply threshold ratio and a digital signal, so that the wireless power supply of the rail train is more accurate and efficient.
The vehicle information collector, the vehicle control signal transmitter, the vehicle control signal receiver, the power tracking controller and the energy transmitting coil are sequentially in communication connection.
The model of the vehicle information collector is CBAH01-B01, the model of the vehicle control signal emitter is E8257D, the model of the vehicle control signal receiver is MRM080, and the model of the power tracking controller is S7-1200.
The vehicle information collector and the vehicle control signal transmitter are both arranged at the front end of the train so as to reduce the distance between the vehicle control signal transmitter and the vehicle control signal receiver and provide sufficient time for the power tracking controller to issue a dynamic power supply instruction.
And the vehicle control signal receiver, the power tracking controller and the energy transmitting coil are all connected with a power frequency alternating current power supply.
The energy receiving device comprises an energy receiving coil, a load coil, a bridge rectifier circuit and a DC/DC converter;
the energy receiving coil is coaxial with the load coil, and the load coil is of a spiral structure; the load coil, the bridge rectifier circuit and the DC/DC converter are electrically connected in sequence; the DC/DC converter is also connected with the power tracking controller. The power tracking controller may control a duty cycle of the DC/DC converter.
The power tracking controller compares the set vehicle control signal-power supply threshold value ratio with the digital signal, can accurately judge whether the train needs to be charged and needs to be supplied with more power, and can accurately supply power by controlling the output power of the energy transmitting coil to achieve the purpose of getting power of the train as required, thereby avoiding unnecessary electric energy waste.
The utility model discloses a working process does: the vehicle information collector collects vehicle information in real time and sends the vehicle information to the vehicle control signal transmitter, and the vehicle control signal transmitter converts the vehicle information into a digital signal and sends the digital signal to the vehicle control signal receiver; the digital signal is received by the vehicle control signal receiver in real time, the received digital signal is transmitted to the power tracking controller by the vehicle control signal receiver, after the digital signal is received by the power tracking controller, the digital signal is compared with a preset vehicle control signal, namely a power supply threshold ratio, an initial power instruction is issued according to a comparison result, and the energy transmitting coil is controlled to supply power to the train.
When the electric quantity of the battery of the train is increased too fast and the temperature is too high in the power supply process of the train, the power tracking controller sends an instruction for reducing the output power of the energy transmitting coil and an instruction for reducing the duty ratio of the DC/DC converter after receiving the digital signal.
When the vehicle information collector collects that the load is increased and the charging speed of a train battery is too low in the power supply process of the train, the power tracking controller sends an instruction for increasing the output power of the energy transmitting coil and an instruction for increasing the duty ratio of the DC/DC converter after receiving the digital signal.
The utility model has the advantages that: the utility model provides a real time monitoring, real time adjustment's accurate wireless power supply system of developments. Real-time parameters such as vehicle load state, residual electric quantity, battery temperature and input voltage are compared with a preset vehicle control signal, namely a power supply power threshold ratio, the power supply power of the energy transmitting coil and the duty ratio of the DC/DC converter are continuously adjusted, dynamic accurate power supply is achieved, energy consumption is reduced, power supply efficiency is improved, and the method has a wide application scene in the field of rail transit.
In the description of the present invention, it is to be understood that the terms "center", "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "radial", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or an implicit indication of the number of technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of such features.
Claims (5)
1. A rail train wireless electric energy transmission system capable of dynamically and accurately supplying power is characterized by comprising an energy transmitting coil, an energy receiving device, a vehicle information collector, a vehicle control signal transmitter, a vehicle control signal receiver and a power tracking controller; the vehicle information collector and the vehicle control signal transmitter are both arranged at the front end of the train; the energy transmitting coil is arranged on a train track, and the energy receiving device is arranged at the bottom of the train.
2. The rail train wireless power transmission system capable of dynamically and accurately supplying power of claim 1, wherein the vehicle information collector, the vehicle control signal transmitter, the vehicle control signal receiver, the power tracking controller and the energy transmitting coil are sequentially in communication connection.
3. The dynamic accurate power supply rail train wireless power transmission system as claimed in claim 2, wherein the model of the vehicle information collector is CBAH01-B01, the model of the vehicle control signal transmitter is E8257D, the model of the vehicle control signal receiver is MRM080, and the model of the power tracking controller is S7-1200.
4. The wireless power transmission system for rail trains capable of supplying power accurately and dynamically according to claim 1, wherein the train control signal receiver, the power tracking controller and the energy transmitting coil are all connected with a power frequency alternating current power supply.
5. The rail train wireless power transmission system capable of dynamically and accurately supplying power of claim 1, wherein the energy receiving device comprises an energy receiving coil, a load coil, a bridge rectifier circuit and a DC/DC converter;
the energy receiving coil is coaxial with the load coil, and the load coil is of a spiral structure; the load coil, the bridge rectifier circuit and the DC/DC converter are electrically connected in sequence; the DC/DC converter is also connected with the power tracking controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221309118.9U CN217720839U (en) | 2022-05-26 | 2022-05-26 | Rail train wireless power transmission system capable of dynamically and accurately supplying power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221309118.9U CN217720839U (en) | 2022-05-26 | 2022-05-26 | Rail train wireless power transmission system capable of dynamically and accurately supplying power |
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| CN217720839U true CN217720839U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221309118.9U Expired - Fee Related CN217720839U (en) | 2022-05-26 | 2022-05-26 | Rail train wireless power transmission system capable of dynamically and accurately supplying power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116853028A (en) * | 2023-09-05 | 2023-10-10 | 北京阿帕科蓝科技有限公司 | Wireless charging method and device for vehicle, computer equipment and storage medium |
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2022
- 2022-05-26 CN CN202221309118.9U patent/CN217720839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116853028A (en) * | 2023-09-05 | 2023-10-10 | 北京阿帕科蓝科技有限公司 | Wireless charging method and device for vehicle, computer equipment and storage medium |
| CN116853028B (en) * | 2023-09-05 | 2024-01-26 | 北京阿帕科蓝科技有限公司 | Wireless charging method and device for vehicle, computer equipment and storage medium |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221101 |