CN105974235A - Generator driving system used for electromagnetic compatibility test - Google Patents
Generator driving system used for electromagnetic compatibility test Download PDFInfo
- Publication number
- CN105974235A CN105974235A CN201610388759.0A CN201610388759A CN105974235A CN 105974235 A CN105974235 A CN 105974235A CN 201610388759 A CN201610388759 A CN 201610388759A CN 105974235 A CN105974235 A CN 105974235A
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- module
- photoelectric conversion
- electromagnetic compatibility
- compatibility test
- frequency conversion
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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
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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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
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a generator driving system used for an electromagnetic compatibility test, comprising a tested generator, a transmission device, a driving device, a power supply module, a first photoelectric conversion module, a second photoelectric conversion module and a control device; the driving device comprises a variable frequency motor, a frequency converter and a rotation speed supervision device. When the driving system provided by the invention is adopted to perform the electromagnetic compatibility test, the driving device can be placed in an anechoic chamber; the precision of the rotation speed of the driving device can be controlled to reach 1RPM by the control device; the practical rotation speed of the driving device can be obtained in real time; and accuracy and reliability of a test result are improved.
Description
Technical field
The present invention relates to electromagnetic compatibility test field, particularly to the generator drive system for electromagnetic compatibility test.
Background technology
New-energy automobile is carried out Electro Magnetic Compatibility (EMC) test and is to ensure that the basic guarantee of vehicle safety, reliability service, be also new-energy automobile research and development of products, detection certification and the key point of industrialized development.Computer management and electronic control system that Hyundai Motor is widely used have to comply with automotive electronics electromagnetic compatibility and include disturbed test (EMI) and the radiation of immunity to interference test (EMS) and the measurement requirement of conduction.At present orthodox car car load is had relevant EMC to detect experimental technique method standard by China, and corresponding detection test capability is also at gradual perfection, but to new-energy automobile, especially to its motor, the EMC test of the critical component such as automatically controlled, also in starting development.
Requirement according to electromagnetic compatibility test standard, load equipment for electromagnetic compatibility test, its electromagnetic interference produced should be lower than measured object, and capacity of resisting disturbance should be higher than measured object, therefore, electromagnetic compatibility test for automobile current generator typically uses 3 kinds of type of drive at present, and the purest motor drives, and Diesel Driven and air motor drive.Wherein, although pure motor drive schemes will not produce extra electromagnetic interference, but because the rotating speed of pure motor itself cannot regulate, therefore rotational speed regulation can only be carried out by kinds of drive such as gear trains, it is impossible to ensure the precision of rotational speed regulation；And during using diesel engine as driving means, diesel engine itself is bulky, needs to occupy bigger lab space, and additionally diesel engine relatively greatly and has waste gas to discharge at operation process noise, environment for anechoic chamber, has harmful effect, and the rotating speed control accuracy of diesel engine is the highest；Using air motor as driving means, although overcoming the problems such as the volume of diesel engine, noise and waste gas, but the rotating speed of air motor depends on the size driving air pressure, owing to the control accuracy of air pressure is relatively low, the accurate control to rotational speed of driving unit cannot be met equally.
Summary of the invention
It is an object of the invention to overcome prior art not enough, it is provided that a kind of generator drive system for electromagnetic compatibility test, the requirement for auxiliary equipment of the electromagnetic compatibility test standard can be met, also the rotating speed of driving means accurately can be controlled simultaneously.
The present invention uses following technical scheme for achieving the above object:
A kind of generator drive system for electromagnetic compatibility test, including tested electromotor, actuating device, driving means, power module, the first photoelectric conversion module, the second photoelectric conversion module and control device；
Wherein, described tested electromotor, described actuating device, described driving means, described first photoelectric conversion module, described second photoelectric conversion module and described control device are sequentially connected with, and described driving means is also connected with described power module；
Described first photoelectric conversion module and described second photoelectric conversion module composition Phototube Coupling system, for transmitting the signal of communication between described control device and described driving means；
Described driving means is used for dragging described tested generator rotation；
Described power module is for powering to described driving means；
Described driving means includes frequency conversion motor, converter and rotational speed measuring device；The armature spindle of described frequency conversion motor is connected with described actuating device；Described rotational speed measuring device is connected with described frequency conversion motor, described rotational speed measuring device is also connected with described first photoelectric conversion module, the control end of described converter is connected with described first photoelectric conversion module, the outfan of described converter is connected with described frequency conversion motor, and the input of described converter is connected with described power module；
The control instruction of described control device output is sent to described first photoelectric conversion module by described second photoelectric conversion module, and it is sent to described converter by described first photoelectric conversion module, for controlling the output voltage frequency of described converter, thus control the rotating speed of described frequency conversion motor；
Described rotational speed measuring device is for monitoring the actual speed of frequency conversion motor, and the actual speed recorded is sent to described control device.
When using drive system provided by the present invention to carry out electromagnetic compatibility test, described tested electromotor, described actuating device, described driving means and described first photoelectric conversion module are placed in anechoic chamber, and described power module, described second photoelectric conversion module, described control device are positioned at outside anechoic chamber,.
In an embodiment of the present invention, described control device is used for providing control instruction input interface.
In an embodiment of the present invention, described rotational speed measuring device includes baffle plate, light emitting module, illuminant module, data acquisition module；
Wherein, described baffle plate rotates coaxially with the armature spindle of described frequency conversion motor, described light emitting module and described illuminant module are respectively placed in the both sides of described baffle plate, and described illuminant module is connected with described data acquisition module, and the other end of described data acquisition module is connected with described first photoelectric conversion module；
Described baffle plate is for periodically blocking the light path between described illuminant module and described light emitting module, described data acquisition module is for receiving the output signal of described illuminant module, and it being sent to described control device by described first photoelectric conversion module and described second photoelectric conversion module, described control device calculates the real-time rotating speed of described frequency conversion motor according to the waveshape signal received.
In an embodiment of the present invention, described driving means also includes that shielding box, described converter are placed in described shielding box.
In an embodiment of the present invention, described driving means also includes prefilter, the input of described prefilter is connected with described power module, the outfan of described prefilter is connected with the input of described converter, the outfan of described prefilter is positioned at described shielding box, described shielding box contacts with the metal shell of described prefilter, forms continuous conductor.
In an embodiment of the present invention, described driving means also includes output filter, wherein, the input of described output filter is connected with the outfan of described converter, the input of described output filter is positioned at described shielding box, and described shielding box contacts with the metal shell of described output filter, forms continuous conductor, the outfan of described output filter is connected with described frequency conversion motor, and the outfan of described output filter is connected with described frequency conversion motor.
In an embodiment of the present invention, described a kind of generator drive system for electromagnetic compatibility test also includes that shielding case, described driving means are placed in described shielding case, and the armature spindle of described frequency conversion motor is connected through described shielding case with described actuating device.
In an embodiment of the present invention, described shielding case also includes screening arrangement, described screening arrangement is placed in the armature spindle of described frequency conversion motor and the junction of described shielding case, described screening arrangement, the armature spindle of described frequency conversion motor and described shielding case composition continuous conductor.
In an embodiment of the present invention, described actuating device includes coaxial transmision, belt driver or gear drive.
Beneficial effects of the present invention:
One, drive system provided by the present invention will not introduce extra electromagnetic disturbance, meets the requirement for auxiliary equipment of the electromagnetic compatibility test standard, uses in can being placed in anechoic chamber,.
Its two, the rotating speed of driving means can accurately be controlled by drive system provided by the present invention, and its rotating speed control accuracy is up to 1RPM, and can obtain the actual speed of driving means in real time, makes test result more accurately and reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the driving device structure schematic diagram of one embodiment of the invention；
Fig. 3 is the rotational speed measuring device structural representation of one embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be further described, illustrative examples therein and explanation are only used for explaining the present invention, but not as a limitation of the invention.
As shown in Figure 1, structural representation for the present invention, a kind of generator drive system for electromagnetic compatibility test, including tested electromotor 100, actuating device 200, driving means the 300, first photoelectric conversion module the 400, second simulated photoelectric 500, control module 600 and power module 700, wherein, surveying electromotor 100, actuating device 200, driving means the 300, first photoelectric conversion module the 400, second simulated photoelectric 500 and control module 600 to be sequentially connected, driving means 300 is also connected with power module 700；Driving means 300 drags tested electromotor 100 by actuating device 200 and generates electricity, actuating device 200 can use such as coaxial transmisions such as shaft couplings, may be used without such as belt drivers such as transmission band, driving-chains, can also use such as gear drives such as gear trains, first photoelectric conversion module 400 and the second photoelectric conversion module 500 form Phototube Coupling system, signal of communication between transmission control unit 600 and driving means 30, controlling device 600 and be used for providing control instruction input interface, power module 700 is for powering to driving means.
As shown in Figure 2, for the driving device structure schematic diagram in one embodiment of the invention, driving means 300 includes frequency conversion motor 310, converter 320, prefilter 330, output filter 340, shielding box 350, rotational speed measuring device 360, screening arrangement 370 and shielding case 380；nullWherein，Frequency conversion motor 310、Converter 320、Prefilter 330、Output filter 340、Shielding box 350、Rotational speed measuring device 360 is placed in shielding case 380，A circular hole is had on the wherein side panel of shielding case 380，The armature spindle of frequency conversion motor 310 is connected through this circular hole with actuating device 200，This circular hole is formed around screening arrangement 370，Screening arrangement 370 contacts with armature spindle and the shielding case 380 of frequency conversion motor 310，Three forms continuous conductor，To keep the conducting continuity of shielding case 380，Frequency conversion motor 310 is also connected with the data acquisition end of rotational speed measuring device 360，Outfan and first photoelectric conversion module 400 of rotational speed measuring device 360 are connected，First photoelectric conversion module 400 is also connected with the control end of converter 320，The input of converter 320 is connected with the outfan of prefilter 330，The outfan of converter 320 is connected with the input of output filter 340，Converter 320、The outfan of prefilter 330 and the input of output filter 340 are respectively positioned in shielding box 350，Shielding box 350 is closely coupled with the metal shell of prefilter 330 and output filter 340，The input of prefilter 330 is connected with power module 700，The outfan of output filter 340 is connected with frequency conversion motor 310.
As it is shown on figure 3, be the rotational speed measuring device structural representation in one embodiment of the invention, rotational speed measuring device 360 includes light emitting module 361, baffle plate 362, illuminant module 363, data acquisition module 364；
Wherein, baffle plate 362 rotates coaxially with frequency conversion motor 310, light emitting module 361 and illuminant module 363 are respectively placed in the both sides of baffle plate 362, and the outfan of illuminant module 363 is connected with the input of data acquisition module 364, and outfan and first photoelectric conversion module 400 of data acquisition module 364 are connected.Baffle plate 362 periodically blocks the light path between illuminant module 363 and light emitting module 361 when rotating, data acquisition module 364 is for receiving the output signal of illuminant module 363, and generate waveshape signal according to the signal received, and it is sent to control device 600 by the first photoelectric conversion module 400 and the second photoelectric conversion module 500.When illuminant module 363 receives the optical signal of light emitting module 361, data acquisition module 364 receives high level signal, when light-path between illuminant module 363 and light emitting module 361 is blocked, data acquisition module 364 receives low level signal, data acquisition module 364 generates square wave according to the high and low level number received, and be sent to control device 600 by the first photoelectric conversion module 400 and the second photoelectric conversion module 500 by the square wave of generation, control device 600 and calculate the real-time rotating speed of frequency conversion motor 310 according to the square wave received.
In the present invention one specific embodiment, when carrying out electromagnetic compatibility test, tested electromotor 100, actuating device 200, driving means 300 and the first photoelectric conversion module 400 are placed in anechoic chamber, second photoelectric conversion module 500, control module 600 are placed in outside anechoic chamber, it is connected by optical fiber between first photoelectric conversion module 400 with the second photoelectric conversion module 500, power module 700 is that anechoic chamber, is self-powered, screening arrangement 370 is the beryllium copper reed being rolled into annular, and this annular diameter is slightly less than the diameter of armature spindle of frequency conversion motor 310.nullWhen experiment，The voltage of power module 700 output is after the filtering of prefilter 330，Input converter 320，Experimenter inputs the driving rotating speed of needs in controlling device 600，Control device 600 and generate rotating speed control instruction，And this instruction is sent to the second photoelectric conversion module 500 in signal of telecommunication mode，The signal of telecommunication received is converted into optical signal by the second photoelectric conversion module 500，And it is sent to the first photoelectric conversion module 400，The optical signal received is again converted into the signal of telecommunication by the first photoelectric conversion module 400，And it is sent to converter 320，Converter 320 changes the frequency of output voltage according to the control instruction received，And voltage is input to output filter 340，After input voltage is filtered by output filter 340，Output is to frequency conversion motor 310；Frequency conversion motor 310 is when dragging tested electromotor 100 and rotating, the actual speed of frequency conversion motor 310 is monitored by rotational speed measuring device 360 in real time, and generate waveshape signal, the waveshape signal of generation is sent to the first photoelectric conversion module 400 by rotational speed measuring device 360, the waveshape signal received is converted into optical signal by the first photoelectric conversion module 400, and it is sent to the second photoelectric conversion module 500, the optical signal received is again converted into waveshape signal by the second photoelectric conversion module 500, and be sent to control in device 600, control device 600 and calculate the actual speed of frequency conversion motor 310 according to the waveshape signal received, and feed back to experimenter.
Obviously, above-described embodiment is only used to clearer expression technical solution of the present invention example, rather than the restriction to embodiment of the present invention.To those skilled in the art, can also make other changes in different forms on the basis of the above description, without departing from the inventive concept of the premise, these broadly fall into protection scope of the present invention.The protection domain of patent the most of the present invention should be as the criterion with claims.
Claims (8)
1. the generator drive system for electromagnetic compatibility test, it is characterised in that include tested electromotor, actuating device,
Driving means, power module, the first photoelectric conversion module, the second photoelectric conversion module and control device；
Wherein, described tested electromotor, described actuating device, described driving means, described first photoelectric conversion module, described
Two photoelectric conversion modules and described control device are sequentially connected with, and described driving means is also connected with described power module；
Described driving means is used for dragging described tested generator rotation；
Described power module is for powering to described driving means；
Described driving means includes frequency conversion motor, converter and rotational speed measuring device；
The armature spindle of described frequency conversion motor is connected with described actuating device；Described rotational speed measuring device is connected with described frequency conversion motor, institute
State rotational speed measuring device to be also connected with described first photoelectric conversion module, the control end of described converter and described first opto-electronic conversion mould
Block is connected, and the outfan of described converter is connected with described frequency conversion motor, and the input of described converter is connected with described power module；
Described rotational speed measuring device is for monitoring the actual speed of frequency conversion motor, and the actual speed recorded is sent to described control dress
Put.
A kind of generator drive system for electromagnetic compatibility test, it is characterised in that described rotating speed
Supervising device includes baffle plate, light emitting module, illuminant module, data acquisition module；
Wherein, described baffle plate rotates coaxially with the armature spindle of described frequency conversion motor, and described light emitting module is put respectively with described illuminant module
In the both sides of described baffle plate, described illuminant module is connected with one end of described data acquisition module, another of described data acquisition module
End is connected with described first photoelectric conversion module；
Described baffle plate is for periodically blocking the light path between described illuminant module and described light emitting module, and described data acquisition module is used
In the output signal of the described illuminant module of collection, and sent by described first photoelectric conversion module and described second photoelectric conversion module
To described control device.
A kind of generator drive system for electromagnetic compatibility test, it is characterised in that described driving
Device also includes that shielding box, described converter are placed in described shielding box.
A kind of generator drive system for electromagnetic compatibility test, it is characterised in that described driving
Device also includes that prefilter, the input of described prefilter are connected with described power module, described prefilter defeated
Going out end to be connected with the input of described converter, the outfan of described prefilter is positioned at described shielding box, described shielding box and
The metal shell contact of described prefilter, forms continuous conductor.
A kind of generator drive system for electromagnetic compatibility test, it is characterised in that described driving
Device also includes that output filter, the input of described output filter are connected with the outfan of described converter, described output filtering
The input of device is positioned at described shielding box, and described shielding box contacts with the metal shell of described output filter, forms continuous conductor,
The outfan of described output filter is connected with described frequency conversion motor.
A kind of generator drive system for electromagnetic compatibility test, it is characterised in that described one
The generator drive system for electromagnetic compatibility test of planting also includes that shielding case, described driving means are placed in described shielding case, described
The armature spindle of frequency conversion motor is connected through described shielding case with described actuating device.
A kind of for electromagnetic compatibility test generator drive system, it is characterised in that described screen
Cover shell and also include that screening arrangement, described screening arrangement are placed in the armature spindle of described frequency conversion motor and the junction of described shielding case, described
Screening arrangement, the armature spindle of described frequency conversion motor and described shielding case composition continuous conductor.
A kind of generator drive system for electromagnetic compatibility test, it is characterised in that described biography
Dynamic device includes coaxial transmision, belt driver or gear drive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610388759.0A CN105974235B (en) | 2016-06-03 | 2016-06-03 | A kind of generator drive system for electromagnetic compatibility test |
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| CN201610388759.0A CN105974235B (en) | 2016-06-03 | 2016-06-03 | A kind of generator drive system for electromagnetic compatibility test |
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| CN105974235A true CN105974235A (en) | 2016-09-28 |
| CN105974235B CN105974235B (en) | 2019-02-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107807284A (en) * | 2017-12-01 | 2018-03-16 | 广州市诚臻电子科技有限公司 | A kind of full Chassis dynamometer device for automotive EMC detection |
| CN108918993A (en) * | 2018-05-18 | 2018-11-30 | 上海埃德电子股份有限公司 | A kind of construction is novel and meets the Motor Measuring System of electromagnetic compatibility test index |
| EP3783373A4 (en) * | 2018-04-17 | 2021-06-23 | Zhuhai Enpower Electric Co., Ltd. | Emc test system applicable to rotating load, and test method thereof |
| CN114216701A (en) * | 2020-12-01 | 2022-03-22 | 襄阳达安汽车检测中心有限公司 | Automobile wheel speed simulator with electromagnetic compatibility and wheel speed adaptability |
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| DE102019133393A1 (en) * | 2019-12-06 | 2021-06-10 | TDK Europe GmbH | Hydraulic device for testing the electromagnetic compatibility and / or other properties of an electric motor |
| CN113067434A (en) * | 2019-12-31 | 2021-07-02 | 航天长屏科技有限公司 | Dark box motor driving system with monitoring and lighting functions and used for screen isolation |
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| CN105974235B (en) | 2019-02-26 |
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