CN204055405U - Trackless trolley car and isolated electric power system thereof - Google Patents
Trackless trolley car and isolated electric power system thereof Download PDFInfo
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- CN204055405U CN204055405U CN201420371368.4U CN201420371368U CN204055405U CN 204055405 U CN204055405 U CN 204055405U CN 201420371368 U CN201420371368 U CN 201420371368U CN 204055405 U CN204055405 U CN 204055405U
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- 238000004891 communication Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 abstract description 9
- 238000011084 recovery Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 125000006850 spacer group Chemical group 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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model relates to a kind of trackless trolley car and isolated electric power system thereof, comprises the isolated DC/DC for being connected with current colector, and isolated DC/DC comprises the chopper circuit, voltage transformer and the rectifying circuit that connect successively; Chopper circuit input end is for connecting current colector, and mouth connects described voltage transformer; The mouth of rectifying circuit is connected to DC bus by contactless switch, and DC bus connects electrokinetic cell.The high_voltage isolation of vehicle and gauze can be realized, eliminate step voltage, improve the safety of trackless trolley car; Can by isolation DC/DC by high-voltage power system stabilized input voltage in certain interval, make High-Voltage Electrical Appliances system works in efficient district.
Description
Technical field
The utility model relates to a kind of trackless trolley car and isolated electric power system thereof.
Background technology
Trackless trolley car, with the advantage of its " zero-emission ", can meet the demand of air contaminant treatment, and meets the developing direction of new-energy automobile, day by day receives the concern of people.
Traditional trackless trolley car is extremely disputed on because there is high-voltage safety problem, and it cannot realize the high_voltage isolation with gauze, when vehicle failure of insulation, easily makes vehicle be communicated with the earth, produces the injury that the person gets an electric shock.And high pressure failpoint is many, failure risk is large.If increase spacer assembly separately in car load power-supply system, then there is the shortcomings such as module repeats, design redundancy.
Meanwhile, the whole piece feeder line terminal voltage at the whole story that trackless trolley car causes because of gauze internal resistance differs greatly, and vehicle service area is wide, if power directly to electric system, cause electric machine design difficulty large, and often work in non-efficient district, influential system efficiency, makes car load power consumption increase.For above-mentioned shortcoming, the utility model adopts a kind of control system being applicable to trackless trolley car, fundamentally solves above-mentioned problems.
Utility model content
The purpose of this utility model is to provide a kind of trackless trolley car and isolated electric power system thereof, in order to solve the low problem of traditional trackless trolley car power supplying efficiency.
For achieving the above object, scheme of the present utility model comprises:
An isolated electric power system for trackless trolley car, comprises the isolated DC/DC for being connected with current colector, and isolated DC/DC comprises the chopper circuit, voltage transformer and the rectifying circuit that connect successively; Chopper circuit input end is for connecting current colector, and mouth connects described voltage transformer; The mouth of rectifying circuit is connected to DC bus by contactless switch, and DC bus connects electrokinetic cell.
Described isolated DC/DC also comprises at least one alternating-current charging interface, and alternating-current charging interface connects rectification module and PFC module successively, and PFC module mouth connects the input end of described chopper circuit.
Described DC bus is also connected with direct-current charging interface.
Described isolated DC/DC is provided with the main control module for controlling described chopper circuit and contactless switch, and described electrokinetic cell system is provided with battery management system, and main control module is connected with entire car controller communication control with battery management system.
Also protection circuit is provided with between described chopper circuit input end and current colector.
A kind of trackless trolley car, comprise the isolated DC/DC for being connected with current colector, isolated DC/DC comprises the chopper circuit, voltage transformer and the rectifying circuit that connect successively; Chopper circuit input end is for connecting current colector, and mouth connects described voltage transformer; The mouth of rectifying circuit is connected to DC bus by contactless switch, and DC bus connects electrokinetic cell.
Described isolated DC/DC also comprises at least one alternating-current charging interface, and alternating-current charging interface connects rectification module and PFC module successively, and PFC module mouth connects the input end of described chopper circuit.
Described DC bus is also connected with direct-current charging interface.
Described isolated DC/DC is provided with the main control module for controlling described chopper circuit and contactless switch, and described electrokinetic cell system is provided with battery management system, and main control module is connected with entire car controller communication control with battery management system.
Also protection circuit is provided with between described chopper circuit input end and current colector.
The utility model can realize the high_voltage isolation of vehicle and gauze, eliminates step voltage, improves the safety of trackless trolley car; Can by isolation DC/DC by high-voltage power system stabilized input voltage in certain interval, make High-Voltage Electrical Appliances system works in efficient district; Realized the isolation of vehicular energy and gauze by isolated DC/DC, realize Brake energy recovery, reach the object reducing power consumption; Accurately controlled by electrokinetic cell electricity, while meeting car load significant power demand, realize the shallow of electrokinetic cell and fill shallow putting, and can the multiple different SOC limit value of design motivation battery be passed through, realize the objects such as generating, Brake energy recovery, pure electronic driving.Finally realize the efficiency utilization of electrokinetic cell; Isolated DC/DC itself has linked network charge function, and isolated DC/DC is designed with AC charging function, and electrokinetic cell is designed with direct current and fills function soon, and the requirement meeting different client realizes configuration optimization.Isolated DC/DC, High-Voltage Electrical Appliances system adopt Integration Design, effectively reduce high voltage contact point, improve the safety of system, and reduce system bulk, weight, cost-saving.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment system block diagram of the present utility model;
Fig. 2 is the systematic schematic diagram of embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in more detail.
An isolated electric power system for trackless trolley car, comprises the isolated DC/DC for being connected with current colector, and isolated DC/DC comprises the chopper circuit, voltage transformer and the rectifying circuit that connect successively; Chopper circuit input end is for connecting current colector, and mouth connects described voltage transformer; The mouth of rectifying circuit is connected to DC bus by contactless switch, and DC bus connects electrokinetic cell.
Give a kind of detailed description of the invention as shown in Figure 1, Figure 2.
Isolated DC/DC also comprises at least one alternating-current charging interface, and alternating-current charging interface connects rectification module and PFC module successively, and PFC module mouth connects the input end of described chopper circuit.Rectification module exports also for powering for main control module CM.
DC bus is also connected with direct-current charging interface.
Also be provided with protection circuit between chopper circuit input end and current colector, over-current protection device can be adopted to realize.
Current colector is used for domination set electric pole and connects or disconnect gauze.Isolated DC/DC is provided with main control module CM, for sampling set electrical equipment actuating signal, controls chopper circuit and contactless switch; Electrokinetic cell system is provided with battery management system BMS, and main control module is connected with entire car controller communication control with battery management system.Fig. 2 mesohigh using electricity system refers to on-board high-voltage system, be different from above-mentioned low-pressure system of powering for CM, high-voltage power system generally comprises: electric motor and controller system, electric boosting steering system, electric air compressor system, electric air-conditioning and heating system, low voltage DC/DC and switching arrangement; Wherein electrokinetic cell system and high-voltage power system constitute pure electric power driven system.Entire car controller can control isolated DC/DC by main control module CM, monitors electrokinetic cell system, control high-voltage power system by corresponding controllers by battery management system.
Principle of work of the present utility model is as follows:
1) during linked network, the isolated DC/DC of vehicle control unit controls, electrokinetic cell system, High-Voltage Electrical Appliances system electrification, after each module power-on self-test passes through, high-tension current in High-Voltage Electrical Appliances system.Entire car controller accepts driver's linked network operating order, domination set electrical equipment linked network, when isolated DC/DC detects gauze burning voltage, isolated DC/DC sends linked network pass signal to entire car controller, now entire car controller sends isolated DC/DC mouth contactless switch close command, now isolated DC/DC resolves BMS voltage message on DC bus, and output voltage is adjusted to cell pressure, and closed contactless switch.Entire car controller is fed back to after having closed.Now entire car controller determines the horsepower output of isolated DC/DC according to the driving behavior (gear, accelerator open degree, brake pedal aperture) etc. of driver.
When car load demand power is less, isolated DC/DC provides whole power, and carries out trickle charge according to the SOC value of electrokinetic cell to electrokinetic cell, stops in limited time mending electricity to electrokinetic cell when electrokinetic cell SOC value reaches in goal-setting.
When car load demand power is larger, isolated DC/DC Upper Bound Power cannot meet car load demand, now isolated DC/DC maximum power output, and not enough part is provided by electrokinetic cell, when car load power demand diminishes, isolated DC/DC continues to mend electricity to battery and reaches goal-setting higher limit.
During Brake energy recovery, vehicle control unit controls drive motor carries out Brake energy recovery, directly the energy of recovery is turned back to electrokinetic cell.
2) during off-grid, the isolated DC/DC of vehicle control unit controls, electrokinetic cell system, High-Voltage Electrical Appliances system electrification, after each module power-on self-test passes through, high-tension current in High-Voltage Electrical Appliances system.Entire car controller does not receive the instruction of power collector linked network, then directly control isolated DC/DC and shut down.Car load power is directly provided by electrokinetic cell.
During driving, power system is powered and is directly provided by electrokinetic cell, entire car controller in conjunction with driver driving behavior, the vehicle operating of electrokinetic cell Characteristics Control.
During Brake energy recovery, vehicle control unit controls drive motor carries out Brake energy recovery, directly the energy of recovery is turned back to electrokinetic cell.
Advantage of the present utility model comprises:
1, realize the high_voltage isolation of vehicle and gauze, eliminate step voltage, improve the safety of trackless trolley car;
2, by isolation DC/DC by High-Voltage Electrical Appliances stabilized input voltage in certain interval, make High-Voltage Electrical Appliances system works in efficient district;
3, realized the isolation of vehicular energy and gauze by isolated DC/DC, realize Brake energy recovery, reach the object reducing power consumption.
4, accurately controlled by electrokinetic cell electricity, while meeting car load significant power demand, realize the shallow of electrokinetic cell and fill shallow putting, and can the multiple different SOC limit value of design motivation battery be passed through, realize the objects such as generating, Brake energy recovery, pure electronic driving.Finally realize the efficiency utilization of electrokinetic cell;
5, isolated DC/DC itself has linked network charge function, and isolated DC/DC is designed with AC charging function, and electrokinetic cell is designed with direct current and fills function soon, and the requirement meeting different client realizes configuration optimization;
6, isolated DC/DC, High-Voltage Electrical Appliances system adopt Integration Design, effectively reduce high voltage contact point, improve the safety of system, and reduce system bulk, weight, cost-saving.
Be presented above concrete embodiment, but the utility model is not limited to described embodiment.Basic ideas of the present utility model are above-mentioned basic scheme, and for those of ordinary skill in the art, according to instruction of the present utility model, designing the model of various distortion, formula, parameter does not need to spend creative work.The change carried out embodiment when not departing from principle of the present utility model and spirit, amendment, replacement and modification still fall in protection domain of the present utility model.
Claims (10)
1. an isolated electric power system for trackless trolley car, is characterized in that, comprises the isolated DC/DC for being connected with current colector, and isolated DC/DC comprises the chopper circuit, voltage transformer and the rectifying circuit that connect successively; Chopper circuit input end is for connecting current colector, and mouth connects described voltage transformer; The mouth of rectifying circuit is connected to DC bus by contactless switch, and DC bus connects electrokinetic cell.
2. the isolated electric power system of a kind of trackless trolley car according to claim 1, it is characterized in that, described isolated DC/DC also comprises at least one alternating-current charging interface, alternating-current charging interface connects rectification module and PFC module successively, and PFC module mouth connects the input end of described chopper circuit.
3. the isolated electric power system of a kind of trackless trolley car according to claim 1, is characterized in that, described DC bus is also connected with direct-current charging interface.
4. the isolated electric power system of a kind of trackless trolley car according to claim 1 or 2 or 3, it is characterized in that, described isolated DC/DC is provided with the main control module for controlling described chopper circuit and contactless switch, described electrokinetic cell system is provided with battery management system, and main control module is connected with entire car controller communication control with battery management system.
5. the isolated electric power system of a kind of trackless trolley car according to claim 4, is characterized in that, is also provided with protection circuit between described chopper circuit input end and current colector.
6. a trackless trolley car, is characterized in that, comprises the isolated DC/DC for being connected with current colector, and isolated DC/DC comprises the chopper circuit, voltage transformer and the rectifying circuit that connect successively; Chopper circuit input end is for connecting current colector, and mouth connects described voltage transformer; The mouth of rectifying circuit is connected to DC bus by contactless switch, and DC bus connects electrokinetic cell.
7. a kind of trackless trolley car according to claim 6, it is characterized in that, described isolated DC/DC also comprises at least one alternating-current charging interface, and alternating-current charging interface connects rectification module and PFC module successively, and PFC module mouth connects the input end of described chopper circuit.
8. a kind of trackless trolley car according to claim 7, is characterized in that, described DC bus is also connected with direct-current charging interface.
9. a kind of trackless trolley car according to claim 6 or 7 or 8, it is characterized in that, described isolated DC/DC is provided with the main control module for controlling described chopper circuit and contactless switch, described electrokinetic cell system is provided with battery management system, and main control module is connected with entire car controller communication control with battery management system.
10. a kind of trackless trolley car according to claim 9, is characterized in that, is also provided with protection circuit between described chopper circuit input end and current colector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371368.4U CN204055405U (en) | 2014-07-07 | 2014-07-07 | Trackless trolley car and isolated electric power system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371368.4U CN204055405U (en) | 2014-07-07 | 2014-07-07 | Trackless trolley car and isolated electric power system thereof |
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| CN204055405U true CN204055405U (en) | 2014-12-31 |
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| CN201420371368.4U Withdrawn - After Issue CN204055405U (en) | 2014-07-07 | 2014-07-07 | Trackless trolley car and isolated electric power system thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139706A (en) * | 2014-07-07 | 2014-11-12 | 郑州宇通客车股份有限公司 | Trolley bus and isolation type power supply system thereof |
| CN104590057A (en) * | 2015-01-13 | 2015-05-06 | 郑州宇通客车股份有限公司 | Power supply control method for trolley bus and power supply system |
| CN105391150A (en) * | 2015-12-04 | 2016-03-09 | 郑州宇通客车股份有限公司 | Trolleybus power supply system and power supply control method thereof |
| CN106143510A (en) * | 2015-03-28 | 2016-11-23 | 鞍钢股份有限公司 | Method for preventing out-of-control of chopped wave speed regulating locomotive in speed regulating process |
-
2014
- 2014-07-07 CN CN201420371368.4U patent/CN204055405U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139706A (en) * | 2014-07-07 | 2014-11-12 | 郑州宇通客车股份有限公司 | Trolley bus and isolation type power supply system thereof |
| CN104590057A (en) * | 2015-01-13 | 2015-05-06 | 郑州宇通客车股份有限公司 | Power supply control method for trolley bus and power supply system |
| CN104590057B (en) * | 2015-01-13 | 2017-01-04 | 郑州宇通客车股份有限公司 | A kind of trolleybus method for controlling power supply and electric power system |
| CN106143510A (en) * | 2015-03-28 | 2016-11-23 | 鞍钢股份有限公司 | Method for preventing out-of-control of chopped wave speed regulating locomotive in speed regulating process |
| CN106143510B (en) * | 2015-03-28 | 2018-10-09 | 鞍钢股份有限公司 | Method for preventing out-of-control of chopped wave speed regulating locomotive in speed regulating process |
| CN105391150A (en) * | 2015-12-04 | 2016-03-09 | 郑州宇通客车股份有限公司 | Trolleybus power supply system and power supply control method thereof |
| CN105391150B (en) * | 2015-12-04 | 2018-11-06 | 郑州宇通客车股份有限公司 | A kind of power supply system for trolley bus and its method for controlling power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20170405 |
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| AV01 | Patent right actively abandoned |