CN102963262B - Power supply system for urban transportation vehicle - Google Patents
Power supply system for urban transportation vehicle Download PDFInfo
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- CN102963262B CN102963262B CN201210506888.7A CN201210506888A CN102963262B CN 102963262 B CN102963262 B CN 102963262B CN 201210506888 A CN201210506888 A CN 201210506888A CN 102963262 B CN102963262 B CN 102963262B
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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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention provides a power supply system for an urban transportation vehicle, which comprises a base station power supply unit, an electric energy transmission unit and a vehicle-mounted power transformation unit, wherein the base station power supply unit comprises a high-frequency inverter and a power supply type convertor; an input end of the high-frequency inverter inputs direct current; an output end of the high-frequency inverter is connected with an input end of the power supply type convertor; the power supply type convertor is used for converting a constant voltage source output by the high-frequency inverter into a constant current source; the electric energy transmission unit comprises a ring transmission cable and an electric energy receiver; the ring transmission cable is buried along a road and connected with an output end of the power supply type convertor to form a high-frequency magnetic field; the electric energy receiver is arranged at the lower part of the vehicle to induct induction current generated by the high-frequency magnetic field; the vehicle-mounted power transformation unit comprises a vehicle-mounted current transformer; an input end of the vehicle-mounted current transformer is connected with the electric energy receiver; and an output end of the vehicle-mounted current transformer is connected with a drive motor of the vehicle.
Description
Technical field
The present invention relates to power technology, particularly relate to a kind of city traffic vehicle powering system.
Background technology
At present, rolling stock (such as motor train unit, electric locomotive and city railway vehicle etc.) is all powered to rolling stock by contact system or the 3rd rail, above-mentioned two kinds of power supply modes all require to run in whole process at rolling stock to lay supply line, also to build supporting Infrastructure, as contact system and strut bar etc. thereof simultaneously.
In Traffic Systems, as in the practical application of city railway vehicle and urban electric power public transit vehicle, need erection by electrical network and other Infrastructure, because contact electrical network and Infrastructure are arranged on Urban Outdoor Space, not only take city space, affect city environment attractive in appearance, and existing contact system construction passes into the high and poor stability of cost.
Summary of the invention
The invention provides a kind of city traffic vehicle powering system, taking the high and technological deficiency of poor stability of city space, cost for solving city traffic vehicle powering system in prior art.
A kind of city traffic vehicle powering system provided by the invention, comprises base station power unit, delivery of electrical energy unit and vehicle-mounted electric transforming unit;
Described base station power unit comprises high-frequency inverter and power supply type changer; Described high-frequency inverter input end input dc power, the mouth of described high-frequency inverter is connected with the input end of described power supply type changer, and described power supply type changer is used for the constant pressure source that described high-frequency inverter exports to be transformed to constant current source;
Described delivery of electrical energy unit comprises annular delivery cable and electric energy receiver, described annular delivery cable burial is at roadside, described annular delivery cable is connected to form high frequency magnetic field with the mouth of described power supply type changer, described electric energy receiver is arranged on lower vehicle, described electric energy receiver and described annular delivery cable gap arrange formation detachable Transformer, produce inducing current with induction of high frequency magnetic field;
Described vehicle-mounted electric transforming unit comprises vehicle-mounted current transformer; The input end of described vehicle-mounted current transformer is connected with described electric energy receiver, and the mouth of described vehicle-mounted current transformer is used for being connected with the drive motor of vehicle.
City traffic vehicle powering system as above, preferably, described base station power unit also comprises rectifier, and the input end of described rectifier is used for being connected with power frequency supply, and the mouth of described rectifier is connected with the input end of described high-frequency inverter.
City traffic vehicle powering system as above, preferably, described vehicle-mounted current transformer comprises vehicle-mounted rectifier and vehicle-mounted inverter; The input end of described vehicle-mounted rectifier is connected with described electric energy receiver, and the mouth of described vehicle-mounted rectifier is connected with the input end of described vehicle-mounted inverter;
Described vehicle-mounted electric transforming unit also comprises accumulator, and described accumulator is connected on the mouth of described vehicle-mounted rectifier.
City traffic vehicle powering system as above, preferably, described accumulator comprises DC-DC converter and energy-storage travelling wave tube, described DC-DC converter reduces charge to described energy-storage travelling wave tube for controlling described vehicle-mounted rectifier output voltage, or controls described energy-storage travelling wave tube output voltage and raise and power to described vehicle-mounted inverter.
City traffic vehicle powering system as above, preferably, described energy-storage travelling wave tube is super capacitor and the storage battery of super capacitor or storage battery or parallel connection.
City traffic vehicle powering system as above, preferably, described power supply type changer is voltage transformer, the former limit of described voltage transformer is connected with the mouth of described high-frequency inverter, the former edges generating line of described voltage transformer is serially connected with the first filter inductance and the second filter inductance, between the former edges generating line of described voltage transformer, is provided with the first building-out capacitor; The secondary bus of described voltage transformer is serially connected with the 3rd inductance and the second building-out capacitor.
City traffic vehicle powering system as above, preferably, described base station power unit also comprises the first electric capacity of voltage regulation, and described first electric capacity of voltage regulation is serially connected in the input end of described high-frequency inverter.
City traffic vehicle powering system as above, preferably, described vehicle-mounted electric transforming unit also comprises the second electric capacity of voltage regulation, and described second electric capacity of voltage regulation is serially connected in the mouth of described vehicle-mounted rectifier.
City traffic vehicle powering system as above, preferably, described electric energy receiver is slab construction, and described electric energy receiver inside is provided with induction coil.
City traffic vehicle powering system provided by the invention; base station power unit is for generation of high frequency Constant Electric Current; high frequency magnetic field is produced by the annular delivery cable in delivery of electrical energy unit; electric energy receiver induction of high frequency magnetic field generation inducing current is that the drive motor of city traffic vehicle is powered; because annular delivery cable can be embedded in road, do not need to set up electrical network, do not take city space; better can protect urban look, and cost is low, safety is good.
Accompanying drawing explanation
The schematic diagram of the city traffic vehicle powering system that Fig. 1 provides for the embodiment of the present invention;
The schematic diagram of the accumulator that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram of a kind of embody rule mode of the city traffic vehicle powering system that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram of the another kind of embody rule mode of the city traffic vehicle powering system that Fig. 4 provides for the embodiment of the present invention.
Reference numeral:
1-base station power unit; 2-delivery of electrical energy unit; The vehicle-mounted electric transforming unit of 3-.
Detailed description of the invention
With reference to the schematic diagram of the city traffic vehicle powering system that figure 1, Fig. 1 provides for the embodiment of the present invention.
As shown in Figure 1, the city traffic vehicle powering system that the present embodiment provides, comprises base station power unit 1, delivery of electrical energy unit 2 and vehicle-mounted electric transforming unit 3.
Base station power unit 1 comprises high-frequency inverter and power supply type changer; High-frequency inverter input end input dc power, the mouth of high-frequency inverter is connected with the input end of power supply type changer, the DC inverter of input is become high-frequency alternating current by high-frequency inverter, and the constant pressure source that power supply type changer is used for high-frequency inverter exports is transformed to constant current source.
High-frequency inverter input dc power can have various ways, preferably, base station power unit 1 also comprises rectifier, the input end of rectifier is used for power frequency supply or is connected, the mouth of rectifier is connected with the input end of high-frequency inverter, be high-frequency inverter input dc power by rectifier, also can directly to high-frequency inverter input dc power.In order to improve the stability of rectifier output voltage, base station power unit 1 also comprises the first electric capacity of voltage regulation C1, and the first electric capacity of voltage regulation C1 is serially connected in the mouth of rectifier.
Particularly, rectifier can be the uncontrollable rectifying circuit of three-phase that multiple diode D1 ~ D6 forms, and rectifier also can be other forms of rectifier.The direct current input of high-frequency inverter can be divided into two kinds of forms, a kind of for power frequency supply be three-phase 380v alternating current, three-phase 380v alternating current inputs rectifier, and after rectifier rectification, output rated voltage is the direct current (DC) of 890v; Another is for directly entering direct current 750V power supply at C end and D termination; This direct current (DC) 890V or 750V is by after electric capacity of voltage regulation C1 voltage stabilizing, input to high-frequency inverter, high-frequency inverter can be multiple insulated gate bipolar transistor power device (Insulated Gate Bipolar Transistor, be called for short IGBT) V1 ~ V4 composition two-phase bridge-type entirely control inverter, high-frequency inverter also can be other forms of inverter.890v direct current (DC) output frequency after high-frequency inverter inversion that rectifier exports is greater than the high frequency constant voltage alternating current of 25kHz, and current value is not less than 150A.Power supply type changer can have multiple way of realization, as long as can meet, high frequency constant voltage convert alternating current is become high frequency constant current alternating current, and power supply type changer can ensure the stable of high-frequency currents.
Delivery of electrical energy unit 2 comprises annular delivery cable 21 and electric energy receiver 22, annular delivery cable 21 is embedded in roadside, annular delivery cable 21 is connected to form high frequency magnetic field with the mouth of power supply type changer, electric energy receiver 22 is arranged on lower vehicle, electric energy receiver 22 and annular delivery cable 21 gap arrange and form detachable Transformer T2, produce inducing current with induction of high frequency magnetic field.High frequency constant voltage convert alternating current is become high frequency Constant Electric Current by power supply type changer, can improve the stability of the high frequency magnetic field that annular delivery cable 21 is formed.
Particularly, the diameter of annular delivery cable 21 can be 125 ㎜, and electric energy receiver 22 is specifically as follows slab construction, and electric energy receiver 22 inside is provided with induction coil.Electric energy receiver 22 can be encapsulated by magnetic core ferrite and wound coil and form, electric energy receiver 22 length is less than 1400 ㎜, width is less than 1000 ㎜, highly be less than 250 ㎜, can, keeping specified delivery of electrical energy efficiency constant apart from floor level position 50 ㎜, can ensure to power to vehicle in ± 200 ㎜ in alignment error.The induction coil of electric energy receiver 22 inside can respond to the high frequency magnetic field of annular transmission cable 21 formation, and produce inducing current, electric energy receiver 22 also can be other structures, the such as structure type such as U-shaped or E shape.
Preferably, power supply type changer can be voltage transformer T1, the former limit of voltage transformer T1 is connected with the mouth of high-frequency inverter, is provided with the first building-out capacitor C2 between the former edges generating line former edges generating line of voltage transformer T1 being serially connected with the first filter inductance L1 and the second filter inductance L2, voltage transformer T1; The secondary bus of voltage transformer T1 is serially connected with the 3rd filter inductance L3 and the second building-out capacitor C3, the second building-out capacitor C3 can increase active volt-amperes, reduce leakage inductance, raises the efficiency.The 890v constant voltage electricity that high-frequency inverter exports carries out filtering by the first filter inductance L1 and the second filter inductance L2, put forward high-tension stability, produce Constant Electric Current by voltage transformer T1 transformation again, by the 3rd filter inductance L3, filtering is carried out to Constant Electric Current, improve the stability of electric current.Because the air gap between annular delivery cable 21 and electric energy receiver 22 is comparatively large, leakage inductance is comparatively large, and power factor is lower, and the second building-out capacitor C3 can improve power factor.
Vehicle-mounted electric transforming unit comprises vehicle-mounted current transformer; The input end of vehicle-mounted current transformer is connected with electric energy receiver 22, and the drive motor M that the mouth of vehicle-mounted current transformer is used for connecting with car is connected.Preferably, vehicle-mounted current transformer comprises vehicle-mounted rectifier and vehicle-mounted inverter; The input end of vehicle-mounted rectifier is connected with electric energy receiver 22, and the mouth of vehicle-mounted rectifier is connected with the input end of vehicle-mounted inverter, and the mouth of vehicle-mounted inverter is used for being connected with the drive motor M of vehicle.In order to improve the stability of vehicle-mounted rectifier output voltage, vehicle-mounted electric transforming unit 3 also comprises the second electric capacity of voltage regulation C4, and the second electric capacity of voltage regulation C4 is serially connected in the mouth of vehicle-mounted rectifier.
Particularly, vehicle-mounted rectifier is the uncontrollable rectifying circuit of two-phase that multiple diode D7 ~ D10 forms, vehicle-mounted rectifier changes the inducing current that electric energy receiver 22 produces into direct current (DC), the three-phase bridge all-wave vehicle-mounted inverter that this direct current (DC) forms through IGBT power device V5 ~ V10, controls drive motor M by PWMI mode of frequency regulation.
The city traffic vehicle powering system that the present embodiment provides; base station power unit 1 is for generation of high frequency Constant Electric Current; high frequency magnetic field is produced by the annular delivery cable 21 in delivery of electrical energy unit 2; electric energy receiver 22 induction of high frequency magnetic field generation inducing current is that the drive motor M of city traffic vehicle powers; because annular delivery cable 21 can be embedded in road, do not need to set up electrical network, do not take city space; better can protect urban look, and cost is low, safety is good.
On the basis of above-described embodiment technical scheme, vehicle-mounted electric transforming unit 3 also comprises accumulator EU, and accumulator EU is connected on the mouth of vehicle-mounted rectifier.The schematic diagram of the accumulator that Fig. 2 provides for the embodiment of the present invention, as shown in Figure 2, preferably, accumulator ED comprises DC-DC converter and energy-storage travelling wave tube, DC-DC converter reduces to energy-storage travelling wave tube charging for controlling vehicle-mounted rectifier output voltage, or the rising of control energy-storage travelling wave tube output voltage is powered to vehicle-mounted inverter.Particularly, energy-storage travelling wave tube can be super capacitor or storage battery, and energy-storage travelling wave tube also can be rechargeable electrical energy in parallel and storage battery.
This accumulator accesses A, B point in Fig. 1, is controlled the K switch 1 ~ K3 in DC-DC converter, diode D11 ~ 12 and the work of IGBT power device V11 ~ 12 by controller.When charging to super capacitor C7, DC-DC converter is operated in BUCK decompression mode, and the voltage exported by vehicle-mounted rectifier reduces, for super capacitor C7 charges.When super capacitor C7 is to electric discharge, DC-DC converter is operated in BOOST boost mode, is raised by the voltage of super capacitor C7 and powers to vehicle-mounted inverter.
The schematic diagram of a kind of embody rule mode of the city traffic vehicle powering system provided for the embodiment of the present invention with reference to figure 3, Fig. 3.
As shown in Figure 3, the city traffic vehicle powering system that above-described embodiment provides, can be applied on city railway vehicle, a light railways can be built along the route of urban public transport, rail level height flushes with ground, base station power unit 1 can be arranged in the rack of road both sides, is also provided with the control devices such as base station power controller and relay switch in rack.
By pre-buried for annular delivery cable 21 inside track, in rigid track, eddy current is produced for avoiding the high frequency magnetic field produced, cable distance rail distance should be not less than the distance of 10mm, annular delivery cable 21 is divided into multistage, the length of every section of annular delivery cable 21 is equal with the length of city railway vehicle, namely when city railway vehicle runs directly over annular delivery cable 21, ensure that the magnetic field that annular delivery cable 21 is set up is all that city railway vehicle is used, reduce high frequency magnetic field and surrounding vehicles or pedestrian are had an impact.The break-make of every section of annular delivery cable 21 can be controlled by relay switch, particularly, insulating regions is provided with between every section of annular delivery cable 21, signal reader is provided with in insulating regions, when vehicle drives to this region, the signal of vehicle can be passed to neighbouring base station power controller, base station power controller judges the position of vehicle according to signal, control relay switch is connected, and the interval cable of the annular delivery cable 21 that vehicle is being travelled produces high frequency magnetic field.
The simultaneously electric energy receiver 22 that is provided with of vehicle bottom, electric energy receiver 22 accepts high frequency magnetic field and high frequency magnetic field is converted into high-frequency alternating current, is supplied to the vehicle-mounted electric transforming unit 3 of vehicle.In order to avoid electromagnetic interference and high frequency magnetic field inductive loop on vehicle, vehicle adopts good shielding and safety method, and car body adopts aluminum alloy material, and wheel adopts high-intensity resin.
The city traffic vehicle powering system that the present embodiment provides; be applied on city railway vehicle; base station power unit 1 is for generation of high frequency Constant Electric Current; high frequency magnetic field is produced by the annular delivery cable 21 in delivery of electrical energy unit 2; electric energy receiver 22 induction of high frequency magnetic field generation inducing current is that the drive motor of city traffic vehicle is powered; because annular delivery cable 21 can be embedded in road; do not need to set up electrical network; do not take city space; better can protect urban look, and cost is low, safety is good.
The one of the city traffic vehicle powering system provided for the embodiment of the present invention with reference to figure 4, Fig. 4 specifically implements schematic diagram.
As shown in Figure 4, the city traffic vehicle powering system that above-described embodiment provides, can also be applied on urban public traffic vehicles, by pre-buried for annular delivery cable 21 below road, annular delivery cable 21 is divided into multistage, the length of every section of annular delivery cable 21 is equal with the length of urban public traffic vehicles, namely when city traffic vehicle runs directly over annular delivery cable 21, ensure that the magnetic field that annular delivery cable 21 is set up is all that urban public traffic vehicles is used, reduce and surrounding vehicles or pedestrian are had an impact.The break-make of every section of annular delivery cable 21 is controlled by relay switch, insulating regions is provided with between every section of annular delivery cable 21, signal reader is provided with in insulating regions, when vehicle drives to this region, the signal of vehicle can be passed to neighbouring base station power controller, base station power controller judges the position of vehicle according to signal, controls relay switch and connects, and the interval cable of the annular delivery cable 21 that vehicle is being travelled produces high frequency magnetic field.
The simultaneously electric energy receiver 22 that is provided with of vehicle bottom, electric energy receiver 22 accepts high frequency magnetic field and high frequency magnetic field is converted into high-frequency alternating current, is supplied to the vehicle-mounted electric transforming unit 3 of vehicle.
The city traffic vehicle powering system that the present embodiment provides; be applied on urban public traffic vehicles; base station power unit 1 is for generation of high frequency Constant Electric Current; high frequency magnetic field is produced by the annular delivery cable 21 in delivery of electrical energy unit 2; electric energy receiver 22 induction of high frequency magnetic field generation inducing current is that the drive motor of city traffic vehicle is powered; because annular delivery cable 21 can be embedded in road; do not need to set up electrical network; do not take city space; better can protect urban look, and cost is low, safety is good.
The city traffic vehicle powering system that above-described embodiment provides can also be used in much industries such as high-risk, explosion-proof, and such as can apply the industry such as under-water operation and oil exploration again, embody rule mode is similar to the above embodiments, does not repeat them here.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a city traffic vehicle powering system, is characterized in that, comprises base station power unit, delivery of electrical energy unit and vehicle-mounted electric transforming unit;
Described base station power unit comprises high-frequency inverter and power supply type changer; Described high-frequency inverter input end input dc power, the mouth of described high-frequency inverter is connected with the input end of described power supply type changer, and described power supply type changer is used for the constant pressure source that described high-frequency inverter exports to be transformed to constant current source;
Described delivery of electrical energy unit comprises annular delivery cable and electric energy receiver, described annular delivery cable burial is at roadside, described annular delivery cable is connected to form high frequency magnetic field with the mouth of described power supply type changer, described electric energy receiver is arranged on lower vehicle, described electric energy receiver and described annular delivery cable gap arrange formation detachable Transformer, produce inducing current with induction of high frequency magnetic field;
Described vehicle-mounted electric transforming unit comprises vehicle-mounted current transformer; The input end of described vehicle-mounted current transformer is connected with described electric energy receiver, and the mouth of described vehicle-mounted current transformer is used for being connected with the drive motor of vehicle;
Described power supply type changer is voltage transformer, the former limit of described voltage transformer is connected with the mouth of described high-frequency inverter, the former edges generating line of described voltage transformer is serially connected with the first filter inductance and the second filter inductance, between the former edges generating line of described voltage transformer, is provided with the first building-out capacitor; The secondary bus of described voltage transformer is serially connected with the 3rd inductance and the second building-out capacitor.
2. city traffic vehicle powering system according to claim 1, it is characterized in that, described base station power unit also comprises rectifier, and the input end of described rectifier is used for being connected with power frequency supply, and the mouth of described rectifier is connected with the input end of described high-frequency inverter.
3. city traffic vehicle powering system according to claim 1 and 2, is characterized in that, described vehicle-mounted current transformer comprises vehicle-mounted rectifier and vehicle-mounted inverter; The input end of described vehicle-mounted rectifier is connected with described electric energy receiver, and the mouth of described vehicle-mounted rectifier is connected with the input end of described vehicle-mounted inverter;
Described vehicle-mounted electric transforming unit also comprises accumulator, and described accumulator is connected on the mouth of described vehicle-mounted rectifier.
4. city traffic vehicle powering system according to claim 3, it is characterized in that, described accumulator comprises DC-DC converter and energy-storage travelling wave tube, described DC-DC converter reduces charge to described energy-storage travelling wave tube for controlling described vehicle-mounted rectifier output voltage, or controls described energy-storage travelling wave tube output voltage and raise and power to described vehicle-mounted inverter.
5. city traffic vehicle powering system according to claim 4, is characterized in that, described energy-storage travelling wave tube is super capacitor and the storage battery of super capacitor or storage battery or parallel connection.
6. city traffic vehicle powering system according to claim 1 and 2, is characterized in that, described base station power unit also comprises the first electric capacity of voltage regulation, and described first electric capacity of voltage regulation is serially connected in the input end of described high-frequency inverter.
7. city traffic vehicle powering system according to claim 1 and 2, is characterized in that, described vehicle-mounted electric transforming unit also comprises the second electric capacity of voltage regulation, and described second electric capacity of voltage regulation is serially connected in the mouth of described vehicle-mounted rectifier.
8. city traffic vehicle powering system according to claim 1 and 2, is characterized in that, described electric energy receiver is slab construction, and described electric energy receiver inside is provided with induction coil.
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| CN201210506888.7A CN102963262B (en) | 2012-11-30 | 2012-11-30 | Power supply system for urban transportation vehicle |
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| CN201210506888.7A CN102963262B (en) | 2012-11-30 | 2012-11-30 | Power supply system for urban transportation vehicle |
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| CN105438008A (en) * | 2014-09-25 | 2016-03-30 | 中车大连电力牵引研发中心有限公司 | Traction system for railway vehicle |
| CN105523050B (en) * | 2014-09-30 | 2018-01-05 | 中车大连电力牵引研发中心有限公司 | The hybrid power electric power system of city rail vehicle |
| CN104811022A (en) * | 2015-05-11 | 2015-07-29 | 永济新时速电机电器有限责任公司 | Auxiliary converter and vehicle |
| CN106374629B (en) * | 2016-09-28 | 2019-03-05 | 中车唐山机车车辆有限公司 | Electromagnetic induction electric energy transmission system |
| CN106505679A (en) * | 2016-11-28 | 2017-03-15 | 中车大连电力牵引研发中心有限公司 | Rail vehicle charger |
| CN107351727A (en) * | 2017-08-15 | 2017-11-17 | 中车唐山机车车辆有限公司 | Vehicle powering system and vehicle |
| CN112706660A (en) * | 2019-10-25 | 2021-04-27 | 中车株洲电力机车研究所有限公司 | Power supply system, train carriage and propulsion system |
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