CN105974235B - A kind of generator drive system for electromagnetic compatibility test - Google Patents
A kind of generator drive system for electromagnetic compatibility test Download PDFInfo
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- CN105974235B CN105974235B CN201610388759.0A CN201610388759A CN105974235B CN 105974235 B CN105974235 B CN 105974235B CN 201610388759 A CN201610388759 A CN 201610388759A CN 105974235 B CN105974235 B CN 105974235B
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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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- 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 present invention provides a kind of generator drive systems for electromagnetic compatibility test, including tested generator, transmission device, driving device, power module, the first photoelectric conversion module, the second photoelectric conversion module and control device, wherein, driving device includes variable-frequency motor, frequency converter, rotational speed measuring device；When carrying out electromagnetic compatibility test using drive system provided by the present invention, the driving device can be placed in anechoic chamber, and control device can reach 1RPM to the revolving speed control precision of driving device, and can obtain the actual speed of driving device in real time, improve test result accuracy and reliability.
Description
Technical field
The present invention relates to electromagnetic compatibility test fields, in particular to are used for the generator drive system of electromagnetic compatibility test.
Background technique
The basic guarantee that Electro Magnetic Compatibility (EMC) test is to ensure that vehicle safety, reliability service is carried out to new-energy automobile,
It is also the key point of new-energy automobile research and development of products, detection certification and industrialized development.The calculating that Hyundai Motor is widely used
It includes disturbed test (EMI) and immunity to interference test that machine management and electronic control system, which have to comply with automotive electronics electromagnetic compatibility,
(EMS) measurement request of radiation and conduction.China has relevant EMC to detect experimental technique method orthodox car vehicle at present
Standard detects test capability also in gradual perfection accordingly, but to new-energy automobile, especially to the key such as its motor, automatically controlled portion
The EMC of part is tested, also in starting development phase.
According to the requirement of electromagnetic compatibility test standard, for the load equipment of electromagnetic compatibility test, the electromagnetism generated is dry
Disturbing should be lower than measured object, and anti-interference ability should be higher than measured object, therefore, at present for the electromagnetic compatibility test of automobile current generator
Generally use 3 kinds of driving methods, respectively pure motor driven, Diesel Driven and air motor driving.Wherein, pure motor drives
Although dynamic scheme will not generate additional electromagnetic interference, because the revolving speed of pure motor itself can not be adjusted, can only pass through
The kinds of drive such as gear set carry out rotational speed regulation, not can guarantee the precision of rotational speed regulation；And using diesel engine as driving device
When, diesel engine itself is bulky, need to occupy biggish lab space, in addition diesel engine it is larger in operation process noise and
There is exhaust gas discharge, has adverse effect for the environment of anechoic chamber, and the revolving speed control precision of diesel engine is not also high；With pneumatic
Motor is as driving device, although the problems such as overcoming the volume of diesel engine, noise and exhaust gas, the revolving speed of air motor
Depending on driving the size of air pressure to be equally unable to satisfy since the control precision of air pressure is lower to the accurate of rotational speed of driving unit
Control.
Summary of the invention
It is an object of the invention to overcome the shortage of prior art, a kind of generator drive for electromagnetic compatibility test is provided
System had both been able to satisfy requirement of the electromagnetic compatibility test standard for ancillary equipment, while can also carry out to the revolving speed of driving device
Accurate control.
The following technical solution is employed to achieve the above object by the present invention:
A kind of generator drive system for electromagnetic compatibility test, including tested generator, transmission device, driving dress
It sets, power module, the first photoelectric conversion module, the second photoelectric conversion module and control device；
Wherein, the tested generator, the transmission device, the driving device, first photoelectric conversion module, institute
It states the second photoelectric conversion module and the control device is sequentially connected, the driving device is also connected with the power module；
First photoelectric conversion module and second photoelectric conversion module form Phototube Coupling system, are used for transmission institute
State the signal of communication between control device and the driving device；
The driving device is for dragging the tested generator rotation；
The power module is used to power to the driving device；
The driving device includes variable-frequency motor, frequency converter and rotational speed measuring device；The armature spindle of the variable-frequency motor
It is connect with the transmission device；The rotational speed measuring device is connected with the variable-frequency motor, the rotational speed measuring device also with institute
It states the first photoelectric conversion module to be connected, the control terminal of the frequency converter is connected with first photoelectric conversion module, the frequency conversion
The output end of device is connected with the variable-frequency motor, and the input terminal of the frequency converter is connected with the power module；
The control instruction of the control device output is sent to first photoelectricity by second photoelectric conversion module
Conversion module, and the frequency converter is sent to by first photoelectric conversion module, for controlling the output electricity of the frequency converter
Voltage-frequency rate, to control the revolving speed of the variable-frequency motor；
The rotational speed measuring device is used to monitor the actual speed of variable-frequency motor, and sends institute for the actual speed measured
State control device.
When carrying out electromagnetic compatibility test using drive system provided by the present invention, the tested generator, the biography
Dynamic device, the driving device and first photoelectric conversion module are placed in anechoic chamber, the power module, described
Second photoelectric conversion module, the control device are located at outside anechoic chamber,.
In an embodiment of the present invention, the control device is for providing control instruction input interface.
In an embodiment of the present invention, the rotational speed measuring device includes baffle, light emitting module, illuminant module, and data are adopted
Collect module；
Wherein, the armature spindle of the baffle and the variable-frequency motor rotates coaxially, the light emitting module and the photosensitive mould
Block is respectively placed in the two sides of the baffle, and the illuminant module is connected with the data acquisition module, the data acquisition module
The other end be connected with first photoelectric conversion module；
The baffle is adopted for periodically blocking the optical path between the illuminant module and the light emitting module, the data
Collection module is used to receive the output signal of the illuminant module, and passes through first photoelectric conversion module and second photoelectricity
Conversion module is sent to the control device, and the variable-frequency electric is calculated according to the waveform signal received in the control device
The real-time revolving speed of machine.
In an embodiment of the present invention, the driving device further includes shielding box, and the frequency converter is placed in the shielding
In box.
In an embodiment of the present invention, the driving device further includes prefilter, the prefilter it is defeated
Enter end to be connected with the power module, the output end of the prefilter is connected with the input terminal of the frequency converter, before described
The output end for setting filter is located in the shielding box, and the shielding box is contacted with the metal shell of the prefilter, group
At continuous conductor.
In an embodiment of the present invention, the driving device further includes output filter, wherein the output filter
Input terminal be connected with the output end of the frequency converter, the input terminal of the output filter is located in the shielding box, described
Shielding box is contacted with the metal shell of the output filter, forms continuous conductor, the output end of the output filter and institute
It states variable-frequency motor to be connected, the output end of the output filter is connected with the variable-frequency motor.
In an embodiment of the present invention, a kind of generator drive system for electromagnetic compatibility test further includes screen
Shell is covered, the driving device is placed in the shielding case, and the armature spindle of the variable-frequency motor passes through the shielding case and the biography
Dynamic device connection.
In an embodiment of the present invention, the shielding case further includes screening arrangement, and the screening arrangement is placed in the frequency conversion
The junction of the armature spindle of motor and the shielding case, the armature spindle and the screen of the screening arrangement, the variable-frequency motor
Cover shell composition continuous conductor.
In an embodiment of the present invention, the transmission device includes coaxial transmision, belt driver or gear drive
Device.
Beneficial effects of the present invention:
First, drive system provided by the present invention will not introduce additional electromagnetic disturbance, meet electromagnetic compatibility test standard
Requirement for ancillary equipment can be placed in anechoic chamber, and use.
Second, drive system provided by the present invention can the revolving speed to driving device accurately controlled, revolving speed control
Precision can obtain the actual speed of driving device up to 1RPM in real time, keep test result more accurate and reliable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the 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 schematic diagram of one embodiment of the invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention will be further described, illustrative examples therein and
Illustrate only to be used to explain the present invention, but not as a limitation of the invention.
As shown in Figure 1, for structural schematic diagram of the invention, a kind of generator drive system for electromagnetic compatibility test,
Including being tested generator 100, transmission device 200, driving device 300, the first photoelectric conversion module 400, the second simulated photoelectric
500, control module 600 and power module 700, wherein survey generator 100, transmission device 200, driving device 300, first
Photoelectric conversion module 400, the second simulated photoelectric 500 and control module 600 are sequentially connected, driving device 300 also with power supply mould
Block 700 is connected；Driving device 300 drags tested generator 100 by transmission device 200 and generates electricity, transmission device 200 can be used as
Such as transmission belt, transmission chain belt driver can also be used in the coaxial transmisions such as shaft coupling, can also use such as gear set
Gear assembly, the first photoelectric conversion module 400 and the second photoelectric conversion module 500 form Phototube Coupling system, for passing
Signal of communication between defeated control device 600 and driving device 30, control device 600 are used to provide control instruction input interface,
Power module 700 is used to power to driving device.
As shown in Fig. 2, driving device 300 includes frequency conversion for the driving device structure schematic diagram in one embodiment of the invention
Motor 310, frequency converter 320, prefilter 330, output filter 340, shielding box 350, rotational speed measuring device 360, shielding
Device 370 and shielding case 380；Wherein, variable-frequency motor 310, frequency converter 320, prefilter 330, output filter 340,
Shielding box 350, rotational speed measuring device 360 are placed in shielding case 380, and a circle is provided on the wherein side panel of shielding case 380
Hole, the armature spindle of variable-frequency motor 310 pass through the circular hole and are connected with transmission device 200, which is surrounded by screening arrangement 370,
Screening arrangement 370 is contacted with the armature spindle of variable-frequency motor 310 and shielding case 380, and three forms continuous conductor, to keep shielding
The conducting continuity of shell 380, variable-frequency motor 310 are also connected with the data collection terminal of rotational speed measuring device 360, rotational speed measuring device
360 output end is connected with the first photoelectric conversion module 400, control terminal of first photoelectric conversion module 400 also with frequency converter 320
It is connected, the input terminal of frequency converter 320 is connected with the output end of prefilter 330, and the output end of frequency converter 320 and output filter
The input terminal of device 340 is connected, and the input terminal of frequency converter 320, the output end of prefilter 330 and output filter 340 is equal
In shielding box 350, shielding box 350 and the metal shell of prefilter 330 and output filter 340 are closely coupled,
The input terminal of prefilter 330 is connected with power module 700, output end and 310 phase of variable-frequency motor of output filter 340
Even.
As shown in figure 3, for the rotational speed measuring device structural schematic diagram in one embodiment of the invention, rotational speed measuring device 360
Including light emitting module 361, baffle 362, illuminant module 363, data acquisition module 364；
Wherein, baffle 362 is rotated coaxially with variable-frequency motor 310, and light emitting module 361 and illuminant module 363 are respectively placed in gear
The output end of the two sides of plate 362, illuminant module 363 is connected with the input terminal of data acquisition module 364, data acquisition module 364
Output end be connected with the first photoelectric conversion module 400.Baffle 362 periodically blocks illuminant module 363 in rotation and shines
Optical path between module 361, data acquisition module 364 be used to receive the output signal of illuminant module 363, and according to receiving
Signal generates waveform signal, and is sent to control device by the first photoelectric conversion module 400 and the second photoelectric conversion module 500
600.When illuminant module 363 receives the optical signal of light emitting module 361, data acquisition module 364 receives high level signal,
When the light-path between illuminant module 363 and light emitting module 361 is blocked, data acquisition module 364 receives low level letter
Number, data acquisition module 364 generates square wave according to the high and low level number received, and the square wave of generation is passed through the first photoelectricity
Conversion module 400 and the second photoelectric conversion module 500 are sent to control device 600, and control device 600 is according to the square wave received
The real-time revolving speed of variable-frequency motor 310 is calculated.
In an of the invention specific embodiment, when carrying out electromagnetic compatibility test, be tested generator 100, transmission device 200,
Driving device 300 and the first photoelectric conversion module 400 are placed in anechoic chamber, the second photoelectric conversion module 500, control mould
Block 600 is placed in outside anechoic chamber, is connected between the first photoelectric conversion module 400 and the second photoelectric conversion module 500 by optical fiber,
Power module 700 is that anechoic chamber, is self-powered, and screening arrangement 370 is the beryllium copper reed for being rolled into annular, and the annular diameter omits
Less than the diameter of the armature spindle of variable-frequency motor 310.In experiment, the voltage that power module 700 exports passes through prefilter 330
Filtering after, input converter 320, experimenter inputs the driving revolving speed of needs, control device 600 in control device 600
Revolving speed control instruction is generated, and the instruction is sent to the second photoelectric conversion module 500, the second photoelectric conversion in a manner of electric signal
The electric signal received is converted into optical signal by module 500, and is sent to the first photoelectric conversion module 400, the first photoelectric conversion
The optical signal received is again converted into electric signal by module 400, and is sent to frequency converter 320, and frequency converter 320 is according to receiving
Control instruction change the frequency of output voltage, and by voltage input to output filter 340,340 pairs of output filter are inputted
After voltage is filtered, it is output to variable-frequency motor 310；Variable-frequency motor 310 is when dragging the tested rotation of generator 100, revolving speed prison
It controls device 360 and real-time monitoring is carried out to the actual speed of variable-frequency motor 310, and generate waveform signal, rotational speed measuring device 360 will
The waveform signal of generation is sent to the first photoelectric conversion module 400, the waveform signal that the first photoelectric conversion module 400 will receive
It is converted into optical signal, and is sent to the second photoelectric conversion module 500, the optical signal that the second photoelectric conversion module 500 will receive
It is again converted into waveform signal, and is sent in control device 600, control device 600 is calculated according to the waveform signal received
The actual speed of variable-frequency motor 310 out, and feed back to experimenter.
Obviously, above-described embodiment is used for the purpose of clearer expression technical solution of the present invention example, rather than right
The restriction of embodiment of the present invention.To those skilled in the art, it can also make on the basis of the above description other
Various forms of variations or variation, without departing from the inventive concept of the premise, these are all within the scope of protection of the present invention.Cause
The scope of protection of the patent of the invention shall be subject to the appended claims for this.
Claims (5)
1. a kind of generator drive system for electromagnetic compatibility test, which is characterized in that including tested generator, transmission dress
It sets, driving device, power module, the first photoelectric conversion module, the second photoelectric conversion module and control device；
Wherein, the tested generator, the transmission device, the driving device, first photoelectric conversion module, described
Two photoelectric conversion modules and the control device are sequentially connected, and the driving device is also connected with the power module；
The driving device is for dragging the tested generator rotation；
The power module is used to power to the driving device；
The driving device includes variable-frequency motor, frequency converter and rotational speed measuring device；
The armature spindle of the variable-frequency motor is connect with the transmission device；The rotational speed measuring device and the variable-frequency motor phase
Even, the rotational speed measuring device is also connected with first photoelectric conversion module, the control terminal of the frequency converter and described first
Photoelectric conversion module is connected, and the output end of the frequency converter is connected with the variable-frequency motor, the input terminal of the frequency converter and institute
Power module is stated to be connected；
The rotational speed measuring device is used to monitor the actual speed of variable-frequency motor, and sends the control for the actual speed measured
Device processed；
The driving device further includes shielding box, and the frequency converter is placed in the shielding box；
The driving device further includes prefilter, and the input terminal of the prefilter is connected with the power module, institute
The output end for stating prefilter is connected with the input terminal of the frequency converter, and the output end of the prefilter is located at the screen
It covers in box, the shielding box is contacted with the metal shell of the prefilter, forms continuous conductor；
The driving device further includes output filter, the output end phase of the input terminal of the output filter and the frequency converter
Even, the input terminal of the output filter is located in the shielding box, outside the metal of the shielding box and the output filter
Shell contact, forms continuous conductor, and the output end of the output filter is connected with the variable-frequency motor.
2. a kind of generator drive system for electromagnetic compatibility test as described in claim 1, which is characterized in that described turn
Fast monitoring device includes baffle, light emitting module, illuminant module, data acquisition module；
Wherein, the armature spindle of the baffle and the variable-frequency motor rotates coaxially, the light emitting module and the illuminant module point
It is not placed in the two sides of the baffle, the illuminant module is connected with one end of the data acquisition module, the data acquisition module
The other end of block is connected with first photoelectric conversion module；
The baffle is for periodically blocking the optical path between the illuminant module and the light emitting module, the data acquisition module
Block is used to acquire the output signal of the illuminant module, and passes through first photoelectric conversion module and second photoelectric conversion
Module is sent to the control device.
3. a kind of generator drive system for electromagnetic compatibility test as described in claim 1, which is characterized in that described
A kind of generator drive system for electromagnetic compatibility test further includes shielding case, and the driving device is placed in the shielding case
Interior, the armature spindle of the variable-frequency motor passes through the shielding case and connect with the transmission device.
4. a kind of generator drive system for electromagnetic compatibility test as claimed in claim 3, which is characterized in that the screen
Covering shell further includes screening arrangement, and the screening arrangement is placed in the armature spindle of the variable-frequency motor and the junction of the shielding case,
The screening arrangement, the armature spindle of the variable-frequency motor and the shielding case form continuous conductor.
5. a kind of generator drive system for electromagnetic compatibility test as described in claim 1, which is characterized in that the biography
Dynamic device includes coaxial transmision, belt driver or gear assembly.
Priority Applications (1)
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610388759.0A CN105974235B (en) | 2016-06-03 | 2016-06-03 | A kind of generator drive system for electromagnetic compatibility test |
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| Publication Number | Publication Date |
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| CN105974235A CN105974235A (en) | 2016-09-28 |
| CN105974235B true CN105974235B (en) | 2019-02-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021110914A1 (en) * | 2019-12-06 | 2021-06-10 | TDK Europe GmbH | Hydraulic device for testing electromagnetic compatibility and/or other characteristics 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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| CN107807284B (en) * | 2017-12-01 | 2023-09-29 | 广州市诚臻电子科技有限公司 | Full chassis dynamometer for automobile electromagnetic compatibility detection |
| CN108333456B (en) * | 2018-04-17 | 2024-03-29 | 珠海英搏尔电气股份有限公司 | EMC test system and method suitable for rotary load |
| CN108918993B (en) * | 2018-05-18 | 2021-02-05 | 上海埃德电子股份有限公司 | Motor test system with novel structure and capable of meeting electromagnetic compatibility test indexes |
| 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 |
| CN114675111B (en) * | 2022-03-31 | 2024-09-13 | 重庆长安新能源汽车科技有限公司 | Electromagnetic compatibility emission test system and method for all-in-one electric drive system |
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| CN105974235A (en) | 2016-09-28 |
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