CN203250001U - Motor performance test platform - Google Patents

Motor performance test platform Download PDF

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Publication number
CN203250001U
CN203250001U CN 201320199320 CN201320199320U CN203250001U CN 203250001 U CN203250001 U CN 203250001U CN 201320199320 CN201320199320 CN 201320199320 CN 201320199320 U CN201320199320 U CN 201320199320U CN 203250001 U CN203250001 U CN 203250001U
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CN
China
Prior art keywords
performance test
test platform
signal
motor performance
motor
Prior art date
Application number
CN 201320199320
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Chinese (zh)
Inventor
陈亮明
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江汉大学
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Priority to CN 201320199320 priority Critical patent/CN203250001U/en
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Publication of CN203250001U publication Critical patent/CN203250001U/en

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Abstract

The utility model relates to a motor performance test platform. The motor performance test platform is characterized in that the motor performance test platform includes a variety of kinds of sensors, a signal conditioning board, an industrial personal computer, a frequency converter, a load and a water tank; the voltage, three-phase current, power factor, temperature, rotation speed and torque signals of the motor are measured through the variety of kinds of sensors and are transmitted to the signal conditioning board; the load is connected with the motor; the signals of the load are also transmitted to the signal conditioning board; the signal conditioning board conditions the signals and makes the same be standard voltage signals, and transmits the standard voltage signals to a signal acquisition card of the industrial personal computer; the industrial personal computer samples the signals through the signal acquisition card, and outputs signals to control the frequency converter; the frequency converter controls the motor; and the water tank performs heat dissipation on the load. The motor performance test platform of the utility model has the advantages of compact structure, convenient operation and high test precision.

Description

The motor performance test platform

Technical field

The utility model relates to a kind of test platform, and particularly a kind of electric machine combination property test platform belongs to motor performance test control technology field.

Background technology

Electric energy is one of topmost energy of modern society, and motor is to convert electric energy to the topmost plant equipment of other form energy, and its reliability service is the basis that ensures whole system operation steady in a long-term, plays an important role in national economy.The safe operation of the parameter of motor, characteristic and motor itself and Systems balanth operation have direct relation.Domestic present motor is measured mainly the link in the factory inspection of motor, and main measurement content is basic parameter, comprises rotating speed, moment of torsion, power.In the past, aspect motor performance test, normal slipstick or the counter of using carries out the data processing, diagram curve is drawn by manual and is drawn at coordinate paper, by the curve reading out data, because chart is coarse, it is often not accurate enough that data read analysis again, aspect control, usually adopt mimic channel to calculate adjusting, have the shortcomings such as precision is not high, control is inconvenient.

Chinese patent 201020555236.9, a kind of electric machine testing device is disclosed, comprise fixed hub, fixing fan blade and regulate fan blade, the center of fixed hub is provided with the motor shaft patchhole, fixedly fan blade and adjusting fan blade are at least two, at least two fixedly fan blade be located on the fixed hub and be circumferentially uniform along motor shaft patchhole axle, each regulate fan blade be arranged at fixed hub or fixedly on the fan blade and respectively with each fixedly corresponding stack setting of fan blade, and regulate fan blade and can move with respect to fixing fan blade.This structure relative complex, and it is inaccurate to detect effect.

In view of this, be necessary to provide a kind of New-type electric machine control performance test platform, to satisfy the practical application needs.

Summary of the invention

The purpose of this utility model is: solves the deficiencies in the prior art, thereby provides a kind of simple in structure, and also easy to operate, the high motor performance test platform of while accuracy of detection.

The technical solution of the utility model is: a kind of motor performance test platform, it is characterized in that, comprise multiple sensors, signal regulating panel, industrial computer, frequency converter, load, water tank, by various sensors voltage, three-phase current, power factor, temperature, rotating speed and the torque signal of motor are measured, and be sent to signal regulating panel; Load links to each other with motor, the signal of load also is sent to signal regulating panel simultaneously, signal regulating panel is standard voltage signal with these signal conditions, and send the data acquisition card of industrial computer to, industrial computer is sampled to signal by data acquisition card, industrial computer is output signal control frequency converter also, the Frequency Converter Control motor, and water tank dispels the heat to load.

Aforesaid motor performance test platform, it is characterized in that, described signal regulating panel is responsible for the signal that various sensors detect is converted to the voltage signal of standard, and signal regulating panel comprises four modules: electric current turns voltage module, voltage amplification adjusting module, current source module, F/V module.

Aforesaid motor performance test platform is characterized in that, described electric current turns voltage module and selects conversion chip RCV420.

Aforesaid motor performance test platform is characterized in that, described voltage amplification adjusting module adopts integrated transporting discharging LM324 and resistance capacitance to form.

Aforesaid motor performance test platform is characterized in that, described current source module is comprised of integrated transporting discharging LM324 and N-channel MOS FET or NPN pipe.

Aforesaid motor performance test platform is characterized in that, described F/V module is comprised of F/V conversion chip ADVFC32 and peripheral circuit thereof.

Aforesaid motor performance test platform is characterized in that, described data acquisition card adopts the NI_PCI6221 capture card.

Aforesaid motor performance test platform is characterized in that, magnetic powder brake or electric eddy current brake are adopted in described load.

Aforesaid motor performance test platform is characterized in that, the thermometric chip in described a plurality of sensors is selected the DS18B20 chip.

Aforesaid motor performance test platform is characterized in that, the torque speed sensor in described a plurality of sensors is selected metal resistance strain gauge formula torque speed sensor, contactless torque speed probe or phase-difference type torque speed probe.

The beneficial effects of the utility model are: the New-type electric machine Testing Platform that the utility model provides has compact conformation, and is easy to operate, the advantage that measuring accuracy is high.

Description of drawings

Fig. 1 is the overall system diagram of motor performance test platform of the present utility model.

Fig. 2 is the signal flow diagram of motor performance test platform of the present utility model.

Fig. 3 is the schematic diagram that the electric current of motor performance test platform of the present utility model turns voltage module.

Fig. 4 is the schematic diagram of the voltage amplification adjusting module of motor performance test platform of the present utility model.

Fig. 5 is the schematic diagram of the current source module of motor performance test platform of the present utility model.

Fig. 6 is the F/V modular design schematic diagram of motor performance test platform of the present utility model.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail, but this embodiment should not be construed as restriction of the present utility model.

Referring to Fig. 1, this figure is the one-piece construction block diagram of the New-type electric machine control performance test platform that provides of the utility model embodiment.The motor performance test platform mainly comprises the ingredients such as multiple sensors, signal regulating panel, industrial computer, frequency converter, load, water tank.Measure the signal of motor by multiple sensors, behind signal regulating panel, send into industrial computer, the output signal control frequency converter of signal regulating panel, the Frequency Converter Control motor, water tank dispels the heat to load.

The signal flow diagram of whole system as shown in Figure 2.The overall plan of motor performance test Platform Designing is by various sensor measurements the signals such as voltage, three-phase current, power factor, temperature, rotating speed and moment of torsion of motor to be measured, and be sent to signal regulating panel, signal regulating panel is standard voltage signal with these signal conditions, be transferred to again data acquisition card NI_PCI6221, industrial computer is sampled to these signals by data acquisition card, and by calculating the characteristic of motor.

Signal regulating panel mainly is the voltage signal that the signal that various sensors detect is converted to standard.Signal regulating panel comprises four modules: electric current turns voltage module, voltage amplification adjusting module, current source module, F/V module.

Electric current turns voltage module: select conversion chip RCV420, and its stable performance, precision is high, and price is not expensive yet, can reach requirement and can control cost again, therefore selects this chip to realize the conversion of electric current and voltage.The schematic diagram of design as shown in Figure 3.

The voltage amplification adjusting module adopts the compositions such as integrated transporting discharging LM324 and resistance capacitance, and principle is simple, and is economical and practical, regulates easily regulation voltage enlargement factor of slide rheostat.The schematic diagram of this partial design as shown in Figure 4.

Current source module is comprised of amplifier LM324 and N-channel MOS FET or NPN pipe etc., its effect is that the drive current when doing test uses, reaching can driving circuit, guarantees that again motor can running at full capacity, thereby can guarantee when test is broken down that system can not damage.Its circuit design principle figure as shown in Figure 5.

The F/V module: since when measuring moment of torsion and revolution the output of moment of torsion tachometer generator be frequency signal, again because to be input to the signal of capture card NI-PCI6221 must be standard voltage signal, thereby to design a F/V change-over circuit.This circuit is comprised of F/V conversion chip ADVFC32 and peripheral circuit thereof, the frequency signal in the different range can be converted to standard voltage signal by choosing different resistance and slip pot.Its design concept figure as shown in Figure 6.

In addition, the type selecting of each module of system is as follows:

1 adds the selection of carrier aircraft (load)

The method of motor characteristic test is by changing motor load, various parameters by continuous testing of electric motors, by calculating the performance parameter of motor, therefore motor being loaded is a very important link of motor performance test again, and selecting to add carrier aircraft then is to realize the key of this work.Detent has two kinds of magnetic powder brake and electric eddy current brakes on the whole.

The selection of 2 thermometric chips

In research process, must monitor respectively motor internal temperature and external temperature, behind many money thermometric chips, determine to select this thermometric chip of DS18B20.

DS18B20 is the one-line digital temperature sensor that DALLAS company produces, and has 3 pin TO-92 small size packing forms; Temperature measurement range is-55 ℃~+ 125 ℃, is programmed for 9~12 A/D conversion accuracies, 0.0625 ℃ of thermometric resolution, and dut temperature is exported with 16 bit digital quantity mode serials of sign extended; Its working power both can be introduced at far-end, also can adopt the parasite power mode to produce; A plurality of DS18B20 can be parallel on 3 or 2 lines, and CPU only needs a root port line just can communicate by letter with many DS18B20, and the port that takies microprocessor is less, can save a large amount of lead-in wires and logical circuit.Above characteristics make DS18B20 be highly suitable for remote multi-point temp detection system.Comprehensive above factor, the present embodiment adopts DS18b20.

3 torque speed sensors

Can select metal resistance strain gauge formula torque speed sensor, contactless torque speed probe or phase-difference type torque speed probe.

The poor formula torque speed sensor of the present embodiment selected phase is convenient for measuring.

The content that is not described in detail in this instructions belongs to the known prior art of this area professional and technical personnel.

Claims (10)

1. motor performance test platform, it is characterized in that, comprise multiple sensors, signal regulating panel, industrial computer, frequency converter, load, water tank, by various sensors voltage, three-phase current, power factor, temperature, rotating speed and the torque signal of motor are measured, and be sent to signal regulating panel; Load links to each other with motor, the signal of load also is sent to signal regulating panel simultaneously, signal regulating panel is standard voltage signal with these signal conditions, and send the data acquisition card of industrial computer to, industrial computer is sampled to signal by data acquisition card, industrial computer is output signal control frequency converter also, the Frequency Converter Control motor, and water tank dispels the heat to load.
2. motor performance test platform according to claim 1, it is characterized in that, described signal regulating panel is responsible for the signal that various sensors detect is converted to the voltage signal of standard, and signal regulating panel comprises four modules: electric current turns voltage module, voltage amplification adjusting module, current source module, F/V module.
3. motor performance test platform according to claim 2 is characterized in that, described electric current turns voltage module and selects conversion chip RCV420.
4. motor performance test platform according to claim 2 is characterized in that, described voltage amplification adjusting module adopts integrated transporting discharging LM324 and resistance, electric capacity to form.
5. motor performance test platform according to claim 2 is characterized in that, described current source module is comprised of integrated transporting discharging LM324 and N-channel MOS FET or NPN pipe.
6. motor performance test platform according to claim 2 is characterized in that, described F/V module is comprised of F/V conversion chip ADVFC32 and peripheral circuit thereof.
7. motor performance test platform according to claim 1 is characterized in that, described data acquisition card adopts the NI_PCI6221 capture card.
8. motor performance test platform according to claim 1 is characterized in that, magnetic powder brake or electric eddy current brake are adopted in described load.
9. motor performance test platform according to claim 1 is characterized in that, the thermometric chip in described a plurality of sensors is selected the DS18B20 chip.
10. motor performance test platform according to claim 1, it is characterized in that, the torque speed sensor in described a plurality of sensors is selected metal resistance strain gauge formula torque speed sensor, contactless torque speed probe or phase-difference type torque speed probe.
CN 201320199320 2013-04-19 2013-04-19 Motor performance test platform CN203250001U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104198206A (en) * 2014-09-17 2014-12-10 宝鸡石油机械有限责任公司 Multipurpose rotation torque loading device and method
CN104793138A (en) * 2015-03-31 2015-07-22 海安县兰菱机电设备有限公司 Servo motor test bench
CN105093111A (en) * 2015-09-16 2015-11-25 浙江亚龙教育装备股份有限公司 Device and method for automatically measuring multiple motor characteristics
CN105353307A (en) * 2015-12-02 2016-02-24 国家电网公司 On-line main operating parameter monitoring system for mine motor
CN106226697A (en) * 2016-07-21 2016-12-14 淮阴工学院 A kind of electric vehicle motor integrated test system for performance
CN106324503A (en) * 2016-08-31 2017-01-11 杭州威衡科技有限公司 Separately excited DC motor measurement calibration system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104198206A (en) * 2014-09-17 2014-12-10 宝鸡石油机械有限责任公司 Multipurpose rotation torque loading device and method
CN104793138A (en) * 2015-03-31 2015-07-22 海安县兰菱机电设备有限公司 Servo motor test bench
CN105093111A (en) * 2015-09-16 2015-11-25 浙江亚龙教育装备股份有限公司 Device and method for automatically measuring multiple motor characteristics
CN105353307A (en) * 2015-12-02 2016-02-24 国家电网公司 On-line main operating parameter monitoring system for mine motor
CN106226697A (en) * 2016-07-21 2016-12-14 淮阴工学院 A kind of electric vehicle motor integrated test system for performance
CN106324503A (en) * 2016-08-31 2017-01-11 杭州威衡科技有限公司 Separately excited DC motor measurement calibration system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131023

Termination date: 20140419

C17 Cessation of patent right