CN107817443A - A kind of range extender of electric vehicle generator test system - Google Patents
A kind of range extender of electric vehicle generator test system Download PDFInfo
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- CN107817443A CN107817443A CN201710960944.7A CN201710960944A CN107817443A CN 107817443 A CN107817443 A CN 107817443A CN 201710960944 A CN201710960944 A CN 201710960944A CN 107817443 A CN107817443 A CN 107817443A
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- electric vehicle
- range extender
- test system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The present invention relates to generator test field, more particularly to a kind of range extender of electric vehicle generator test system；The system includes power supply (1), the first rectification unit (2), inversion unit (3) and the dragging motor (4) being sequentially connected, and the system is also including the DC Electronic Loads (5) being connected with the first rectification unit (2) output end, the second rectification unit (6) being connected with the DC Electronic Loads (5) output end, the measuring unit (7) being connected with the second rectification unit (6) output end, the subject generator (8) being connected with the measuring unit (7) output end；The present invention carries out energy feedback using DC Electronic Loads, in combination with the rectification function of engine controller, can effectively solve the drawbacks of traditional scheme.
Description
Technical field
The present invention relates to generator test field, more particularly to a kind of range extender of electric vehicle generator test system.
Background technology
Electric automobile is one kind of automobile, is the hot technology in the current whole world, is that a kind of energy-conserving and environment-protective reduce global warming
Effective means；Development of the China to electric automobile at present is paid much attention to.The development of electric automobile mainly uses battery powered
Electric drive motor replaces in the past traditional diesel oil or petrol engine, effectively reduces exhaust emissions, reduces pollution.Meanwhile electricity
The characteristic of motivation more meets the needs of automobile low-speed big and high speed compared to conventional engines, and energy transmission efficiency is very
Height, electric automobile are matter of time instead of traditional vehicle.
And the development of global video automobile at present is limited to battery link, battery charging and discharging time and energy storage number
Determine the course continuation mileage of electric automobile and the continuity degree of stroke.At present, electric automobile other parts compare at this stage
Under conditions of ripe, range extender of electric vehicle solves the problems, such as the continuation of the journey of pure electric automobile well, meanwhile, it is than hybrid power vapour
Car is more economical, also bigger clear and reasonable in energy distribution, so in the case where battery technology does not have important breakthrough, electricity
Electrical automobile distance increasing unit is definitely best selection.
In this context, the developmental research of range extender of electric vehicle just seems particularly significant, and range extender of electric vehicle is sent out
Motor is then the most important thing, and the reasonability for the method tested under its line also seems further important, only more comprehensively more conforms to reality
The data of border operating condition are only more rational scheme.
The content of the invention
It is an object of the invention to provide a kind of range extender of electric vehicle generator test system, solves electric automobile increasing
Journey device generator is in order to match a variety of electric automobiles, voltage range
Between 48V-660VDC, frequency loads gamut difficult to realize between 0-200Hz, using traditional resistance sense and covered
The problem of lid, typically using more gear switches, can not accomplish to continuously adjust, and simultaneous faults point is more.
The present invention be achieved in that the system include be sequentially connected power supply, the first rectification unit, inversion unit and
Dragging motor, the system also include the DC Electronic Loads being connected with the first rectification unit output end and the direct current
Second rectification unit of sub- load outputs connection, the measuring unit being connected with the second rectification unit output end, with it is described
The subject generator of measuring unit output end connection.
The present invention further technical scheme be：The power configuration three-phase four-wire system 400V, distribution capacity are not less than
50kVA, configure the line protective breaker and disjunction contactor.For testboard bay total input-wire power protection.
The present invention further technical scheme be:First rectification unit selects the volume of frequency converter with the inversion unit
It is 60kW, 0~500V of output voltage, 0~200Hz of output frequency to determine power output, frequency converter by CAN fieldbus mode with
Upper machine communication, the dragging motor control mode is controlled for rotating speed.
The present invention further technical scheme be：DC Electronic Loads input three-phase electricity is 700VDC, output voltage
For 96-660VDC continuously adjustabes, power supply capacity 60kW, output-current rating 200A, peak value output is 250A.
The present invention further technical scheme be：Installation disconnecting switch and high-precision sensing inside the measuring unit
Device, the alternating current ginseng for dc source output disjunction control, engine controller input direct-current electrical parameter and generator side
Number measurement；Punching measuring box is separately configured in the electric parameter measurement that the subject generator is surveyed, to reduce interference as far as possible.
The present invention further technical scheme be：Second rectification unit can also use distance increasing unit engine controller
Substitute.
The present invention further technical scheme be：The dragging motor uses alternating current asynchronous variable-frequency motor, is sent out as subject
The driven equipment of motor, rated power 60kW, rated speed 3000r/min, maximum speed 6000r/min, nominal torque
190N.m, use are air-cooled.
The present invention further technical scheme be：The dragging motor and described passed through torque sensing between spreadsheet engine
Device connects.
The present invention further technical scheme be：The torque sensor nominal torque range is 200N.m, rotating speed range
8000rpm, measuring accuracy is 0.2% grade under nominal torque range.
The beneficial effects of the invention are as follows：The present invention uses DC Electronic Loads mode, solves asking for this series well
Topic, 48V-660VDC voltages, 0-200Hz frequencies can not only be completely covered, while use energy feedback pattern, can effectively drop
Low energy consumption, it is a kind of powerful, test method of energy-saving and environment friendly.
Brief description of the drawings
Fig. 1 is a kind of range extender of electric vehicle generator test system schematic provided by the invention；
Reference：1. power supply, 2. first rectification units, 3. inversion units, 4. dragging motors, 5. DC Electronic Loads,
6. the second rectification unit, 7. measuring units, 8. subject generators, 9. torque sensors.
Embodiment
Embodiment one：The system includes power supply 1, the first rectification unit 2, inversion unit 3 and the dragging electricity being sequentially connected
Machine 4, DC Electronic Loads 5 that the system also includes being connected with the output end of the first rectification unit 2, bear with the DC electronic
Carry 5 output ends connection the second rectification unit 6, be connected with the output end of the second rectification unit 6 measuring unit 7, with it is described
The subject generator 8 of the output end of measuring unit 7 connection.
Configuration three-phase four-wire system 400V is required for power supply 1, distribution capacity is not less than 50kVA, configure the line protection open circuit
Device and disjunction contactor, for testboard bay total input-wire power protection；The output end of power supply 1 connects the first rectification unit 2, the
One rectification unit is 60kW, 0~500V of output voltage, 0~200Hz of output frequency from the rated output power of frequency converter, is become
Frequency device is controlled the control mode of dragging motor 4 by CAN fieldbus mode and upper machine communication for rotating speed；Described
The output end of one rectification unit 2 connects inversion unit 3 and DC Electronic Loads 5, the inversion unit 3 and the first rectification list
The requirement of member 2 is consistent, and the output end of inversion unit 3 connects dragging motor 4, and the dragging motor 4 uses alternating current asynchronous frequency conversion
Motor, rated power 60kW, rated speed
3000r/min, maximum speed 6000r/min, nominal torque 190N.m, use are air-cooled；The DC Electronic Loads 5
Input three-phase electricity is 700VDC, and output voltage is 96-660VDC continuously adjustabes, power supply capacity 60kW, and output-current rating is
200A, peak value output is 250A；The output end of DC Electronic Loads 5 connects the second rectification unit 6, second rectification unit 6
It can be substituted using distance increasing unit engine controller；The output end connection measuring unit 7 of second rectification unit 6, the survey
The inside of unit 7 installation disconnecting switch and high-precision sensor are measured, for dc source output disjunction control, engine controller
The AC parameter measuring of input direct-current electrical parameter and generator side, the electric parameter measurement that the subject generator 3 is surveyed are independent
Punching measuring box is configured, to reduce interference as far as possible；The output end of measuring unit 7 connection is by spreadsheet engine 8.
Connected between spreadsheet engine 8 and dragging motor 4 by torque sensor 9, the torque sensor nominal torque
Range is 200N.m, rotating speed range 8000rpm, and measuring accuracy is 0.2% grade under nominal torque range.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
- A kind of 1. range extender of electric vehicle generator test system, it is characterised in that：The system includes the power supply being sequentially connected (1), the first rectification unit (2), inversion unit (3) and dragging motor (4), the system also include and first rectification unit (2) DC Electronic Loads (5) of output end connection, the second rectification unit being connected with the DC Electronic Loads (5) output end (6) measuring unit (7) that, is connected with the second rectification unit (6) output end, it is connected with the measuring unit (7) output end Subject generator (8).
- A kind of 2. range extender of electric vehicle generator test system according to claim 1, it is characterised in that：The power supply (1) three-phase four-wire system 400V is configured, distribution capacity is not less than 50kVA, configure the line protective breaker and disjunction contactor.
- A kind of 3. range extender of electric vehicle generator test system according to claim 1, it is characterised in that：Described first Rectification unit (2) and the inversion unit (3) are 60kW from the rated output power of frequency converter, output voltage 0~500V, defeated Go out 0~200Hz of frequency, frequency converter is by CAN fieldbus mode and upper machine communication, to the dragging motor (4) controlling party Formula controls for rotating speed.
- A kind of 4. range extender of electric vehicle generator test system according to claim 1, it is characterised in that：The direct current Electronic load (7) input three-phase electricity is 700VDC, and output voltage is 96-660VDC continuously adjustabes, power supply capacity 60kW, specified Output current is 200A, and peak value output is 250A.
- A kind of 5. range extender of electric vehicle generator test system according to claim 1, it is characterised in that：The measurement Installation disconnecting switch and high-precision sensor inside unit (7), the electric parameter measurement that the subject generator (3) is surveyed individually are matched somebody with somebody Put punching measuring box.
- A kind of 6. range extender of electric vehicle generator test system according to claim 1, it is characterised in that：Described second Rectification unit (6) can also be substituted using distance increasing unit engine controller.
- A kind of 7. range extender of electric vehicle generator test system according to claim 1, it is characterised in that：The dragging Motor (4) uses alternating current asynchronous variable-frequency motor, rated power 60kW, rated speed 3000r/min, maximum speed 6000r/min, Nominal torque 190N.m, use are air-cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710960944.7A CN107817443A (en) | 2017-10-17 | 2017-10-17 | A kind of range extender of electric vehicle generator test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710960944.7A CN107817443A (en) | 2017-10-17 | 2017-10-17 | A kind of range extender of electric vehicle generator test system |
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| Publication Number | Publication Date |
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| CN107817443A true CN107817443A (en) | 2018-03-20 |
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| CN201710960944.7A Pending CN107817443A (en) | 2017-10-17 | 2017-10-17 | A kind of range extender of electric vehicle generator test system |
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| CN101241168A (en) * | 2007-08-31 | 2008-08-13 | 奇瑞汽车股份有限公司 | Hybrid power automobile drive electric motor test bench and test method |
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| KR20110121438A (en) * | 2010-04-30 | 2011-11-07 | 선문대학교 산학협력단 | Testing apparatus of electronic control generator for vehicle and method thereof |
| CN202930963U (en) * | 2012-10-30 | 2013-05-08 | 广东明阳龙源电力电子有限公司 | Energy feedback recycling system applied to wind turbine generator test |
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2017
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| CN101241168A (en) * | 2007-08-31 | 2008-08-13 | 奇瑞汽车股份有限公司 | Hybrid power automobile drive electric motor test bench and test method |
| KR20110121438A (en) * | 2010-04-30 | 2011-11-07 | 선문대학교 산학협력단 | Testing apparatus of electronic control generator for vehicle and method thereof |
| CN201984146U (en) * | 2010-12-17 | 2011-09-21 | 上海电机系统节能工程技术研究中心有限公司 | Load regulating and stabilizing device for motor testing system |
| CN202930963U (en) * | 2012-10-30 | 2013-05-08 | 广东明阳龙源电力电子有限公司 | Energy feedback recycling system applied to wind turbine generator test |
| CN203250007U (en) * | 2013-05-24 | 2013-10-23 | 浙江工贸职业技术学院 | Automobile generator testing and experimental device |
| CN104064083A (en) * | 2014-06-20 | 2014-09-24 | 三垦力达电气(江阴)有限公司 | Power grid analog control system |
| CN205080239U (en) * | 2015-11-06 | 2016-03-09 | 株洲中达特科电子科技有限公司 | Alternator testing system |
| CN205333820U (en) * | 2015-12-30 | 2016-06-22 | 华南理工大学 | Double -fed asynchronous generator model test device |
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Application publication date: 20180320 |