CN105954676A - Servo motor testing system - Google Patents

Servo motor testing system Download PDF

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Publication number
CN105954676A
CN105954676A CN201610485180.6A CN201610485180A CN105954676A CN 105954676 A CN105954676 A CN 105954676A CN 201610485180 A CN201610485180 A CN 201610485180A CN 105954676 A CN105954676 A CN 105954676A
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CN
China
Prior art keywords
motor
power
motor driver
test
servomotor
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Pending
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CN201610485180.6A
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Chinese (zh)
Inventor
徐�明
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Wuxi New Great Power Electrical Machine Co Ltd
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Wuxi New Great Power Electrical Machine Co Ltd
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Priority to CN201610485180.6A priority Critical patent/CN105954676A/en
Publication of CN105954676A publication Critical patent/CN105954676A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34Testing dynamo-electric machines
    • G01R31/343Testing dynamo-electric machines in operation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Electric Motors In General (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

The invention discloses a servo motor testing system, which comprises an industrial control computer, and a tested motor driver, a motor driving power supply, a data acquisition module, a power analyzer and a load motor diver which are connected with the industrial control computer. The tested motor driver is electrically connected with the motor driver, the other end of the data acquisition module is connected to a tested motor, the power analyzer is connected to a rotating speed and torque driver, the load motor diver is connected to a load motor and an energy feedback type load, and the power analyzer is electrically connected with the tested motor. A motor and driver analyzer adopts 3 power board cards for testing input electrical parameters of the tested motor, a motor testing board card is used for testing torque and a rotating speed output by the motor, and a servo motor achieves the effects of high control precision and fast response speed.

Description

A kind of servomotor test system
Technical field
The invention belongs to electromechanical testing field, be specifically related to a kind of servomotor test system.
Background technology
In recent years, the development of science and technology proposes the highest requirement to motor performance and quality index, and the development of Motor Measuring Technology is closely-related with the development of electric machine industry.Motor test is to quality of motors and the important step of technical performance overall merit, is the important procedure of motor manufacturing and production.Traditional testing equipment and method are long due to the operating time, and the instrument that need to observe is many, artificial read test data and carry out data analysis, calculating, have impact on quality and the precision of motor test to a certain extent.Along with current design of electrical motor level, the further lifting of technological level, and the raw-material performance of motor improve constantly, performance and the quality index of motor are greatly improved.Therefore, the requirement to Motor Measuring Technology improves the most day by day, and servomotor is the most such.
It is thus desirable to provide the more efficient servomotor test system of one solves the problems referred to above.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of servomotor test system so that the control accuracy of motor is higher, response speed faster.
A kind of servomotor test system, described servomotor test system includes industrial computer and the tested motor driver being connected respectively with described industrial computer, motor drive power supply, data acquisition module, power analyzer, load motor driver, described tested motor driver and the electrical connection of described motor driver, the other end of described data acquisition module is connected to by measured motor, described power analyzer is connected to described rotating speed torque drivers, described load motor driver is respectively connecting to load motor and energy feedback type load, described power analyzer is electrically connected by measured motor with described;Described motor drive power supply includes AC/DC power module, the ac input end of AC/DC power module is connected with alternating current power supply, the both positive and negative polarity of AC/DC power module DC output end is connected with direct current generator, the control end of AC/DC power module is connected with battery voltage sampling circuit by voltage limiting circuit, the both positive and negative polarity of battery voltage sampling circuit is connected with the both positive and negative polarity of accumulator, it is connected current limiting resistance between the negative pole and the positive pole of AC/DC power module DC output end of accumulator, it is connected between the positive pole and the negative pole of AC/DC power module DC output end of accumulator and has wire.
Preferably, the software system of described servomotor test system includes that testing module, data analysis module and form derives module.
Preferably, described test module includes automatically testing and manual test.
Preferably, described automatic test includes automatic measurement of rotating speed and automatic torque test.
Preferably, the winding of motor that described inversion assembly is configured to be connected by described motor driver after described motor driver power-off is to described discharging capacitors.
Preferably, described motor driver also includes that controller sends pulse to control the conducting of described switching device and Guan Bi with the switching device to described inversion assembly, and wherein said controller is configured to: when the motor that described motor driver power-off and described motor driver connect runs described switching device to described inversion assembly send with its time properly functioning as pulse so that described motor is properly functioning;And when described motor driver power-off and described motor stop, the described switching device of described inversion assembly is sent the pulse different time properly functioning from it to avoid described motor to run.
Technical scheme has the advantages that
A kind of servomotor test system that the present invention provides, the motor of test system and driver analyser use 3 power boards for test by the input electrical quantity of measured motor, electromechanical testing board is used for moment of torsion and the rotating speed of testing of electric motors output, servomotor reaches control accuracy height, the effect of fast response time, performance and the quality index of motor are greatly improved, and the advantage that the velocity of discharge is fast, stability is high, and the power module power consumption of native system is little, life-span is long so that system is more firm.
Accompanying drawing explanation
Below by drawings and Examples, technical scheme is described in further detail.
Fig. 1 is the system block diagram of a kind of servomotor of present invention test system.
Detailed description of the invention
In order to have a clear understanding of technical scheme, its detailed structure be will be set forth in the description that follows.Obviously, the concrete also deficiency of implementing of the embodiment of the present invention is limited to the specific details that those skilled in the art is familiar with.The preferred embodiments of the present invention are described in detail as follows, in addition to these embodiments described in detail, it is also possible to have other embodiments.
With embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.
In conjunction with Fig. 1, a kind of servomotor test system, described servomotor test system includes industrial computer and the tested motor driver being connected respectively with described industrial computer, motor drive power supply, data acquisition module, power analyzer, load motor driver, described tested motor driver and the electrical connection of described motor driver, the other end of described data acquisition module is connected to by measured motor, described power analyzer is connected to described rotating speed torque drivers, described load motor driver is respectively connecting to load motor and energy feedback type load, described power analyzer is electrically connected by measured motor with described;Described motor drive power supply includes AC/DC power module, the ac input end of AC/DC power module is connected with alternating current power supply, the both positive and negative polarity of AC/DC power module DC output end is connected with direct current generator, the control end of AC/DC power module is connected with battery voltage sampling circuit by voltage limiting circuit, the both positive and negative polarity of battery voltage sampling circuit is connected with the both positive and negative polarity of accumulator, it is connected current limiting resistance between the negative pole and the positive pole of AC/DC power module DC output end of accumulator, it is connected between the positive pole and the negative pole of AC/DC power module DC output end of accumulator and has wire.
During work, loaded by measured motor with servomotor, it is stepped down to 25% nominal load from 150% nominal load, the most at least chooses 6 test points (100% nominal load point must be comprised), measure the parameters such as its voltage, electric current, power, torque, rotating speed and calculate.
The winding of motor that described inversion assembly is configured to be connected by described motor driver after described motor driver power-off is to described discharging capacitors;Preferably, described motor driver also includes that controller sends pulse to control the conducting of described switching device and Guan Bi with the switching device to described inversion assembly, and wherein said controller is configured to: when the motor that described motor driver power-off and described motor driver connect runs described switching device to described inversion assembly send with its time properly functioning as pulse so that described motor is properly functioning;And when described motor driver power-off and described motor stop, the described switching device of described inversion assembly is sent the pulse different time properly functioning from it to avoid described motor to run.
Take in embodiment is MDA serial motors and driver analyser, is exclusively used in measurement motor, converter, the special instrument of driver.It has been provided simultaneously with the functions such as power analyzer, wave tracer, data logger, can meet completely motor and driver test high bandwidth, in high precision, the measurement requirement of high reliability.Wherein, MDA8000 series of products can have power measurement module and motor measurement module simultaneously so that the input/output argument of motor and driver can synchro measure, thus ensure that the verity of efficiency test
Torque speed sensor is used for moment of torsion and the rotating speed of testing of electric motors output, two kinds can be divided into by the place of production, a kind of is domestic, another kind is import brand, it is respectively arranged with pluses and minuses: the precision of domestic brand is generally done the highest, and the life-span of precision stability probably can maintain 2 ~ 3 years, but its low price, delivery date is the most comparatively short, general 2 ~ 3 weeks;The price comparison of import brand is expensive, and delivery date is the most relatively long, is typically necessary more than 12 weeks, but the precision of import brand can be made the highest, and the precision stability life-span is the most longer up to the more than ten years.By customer demand, native system is optional domestic.
Current transformer can be converted to instrument collectable small area analysis signal the big electric current exceeding apparatus measures scope by certain no-load voltage ratio.Electric current is one of system most basic measurement item, and its certainty of measurement directly affects the accuracy class of whole system.Therefore, precision height, the current transformer of good stability is selected to be necessary.In this project, having selected the IT series 200A range current transformer of LEM company of Switzerland, precision is up to 0.05%.
Motor mounting platform, we are divided into fixed, three-dimensional regulation formula.Fixed applicable any weight is by the use of measured motor, and shortcoming is exactly that different motors are required for changing by tested motor mounting rack.Within three-dimensional regulation formula is suitable for 30 kilograms, power less than 2 kilowatts by measured motor (if rotating speed is the highest, power can suitably raise), advantage be suitable for different size of motor use, centering and install the most very convenient.
Motor coupler selects spring or bellows-type, within they are applicable to 20N.m.It is typically chosen quincunx if greater than 20N.m.Shaft coupling also divides import and domestic, and the price of import is high, substantially will be 2,000 the most thousand of, the shortcoming equally existing delivery date length of import, general 2 ~ 3 weeks of domestic delivery date.
Single phase ac programmable power supply, for being alternating current generator by measured motor, is powered during measurement, its input single-phase 220V, and output is to carry out 0 ~ 150V or 0 ~ 300V pressure regulation, single-phase output, and frequency is 47-63Hz, can meet the test needs of alternating current generator completely.By this power supply, system can carry out full automatic load testing.
Testing, client, the mechanical load that inside system, we select is servomotor.Servomotor does load to be had control accuracy height, favorable repeatability (being better than other magnetic loadings), moderate cost, can do stall, torque mode and rotating speed Schema control and can realize, without extra adding fan hot systems, can connect the advantages such as energy load.The control accuracy of moment of torsion and rotating speed can reach 0.5%(when being at a high speed supported on 2% rotating speed substantially, and control accuracy still can reach 5%.
Data acquisition module protects data collection and control function, can control various relay, acquisition controlling cabinet temperature, protective current, voltage etc..Native system uses and causes MTU of new generation blade type based on the network communication data acquisition control system that remote electronics produces.Use unitization structure, simple, flexible, communication module and various data acquisition and control module independent assortment, tackle various on-the-spot application.MTU system can be passed through the communication modes such as RS-485/RS-422/RS-232, Ethernet or CAN-bus and realize the long-range control of the data acquisition to on-the-spot various sensors and equipment.
Industrial computer is the data processing centre of system, is also the carrier of man-machine interaction.The industrial computer MTPC-680 that native system uses, based on Intel atom series low power processor (x86 framework), this industrial computer has that aboundresources, interface is complete, low-power consumption, reliability high;Use simultaneously advanced person fan-free, without cable designs, greatly strengthen system stability.While ensureing that process performance meets system needs, the design of high reliability is also that the steady operation of whole test system provides powerful guarantee.
MTPC-680 industrial computer feature, fan-free designs: compact embedded cabinet, without any fan apparatus such as cpu fan, system fan, power supply fans, decreases the maintenance needs of system;Without cable designs: all can connect interface and CPU board with cable in common inserted computer.But the usual cracky of cable, bad connection or setup error this may result in the system failure.But the interface of MTPC-680 industrial computer is all directly welded on PCB, without cable designs, substantially increase system stability;Aim at and need the user of firm and high reliability industry platform to design and can bear high impact properties and high vibration resistance, it is adaptable to the environment of very severe;Good anticorrosive and heat dispersion: aluminum shell and heat sink design make system not only have high-cooling property and have high corrosion resistance.This makes have high reliability when running under equipment environment out of doors.
Automatically test is divided into two kinds: measurement of rotating speed and automatic torque test automatically.Automatically needed the speed point of test under rotating speed pattern by user's configured in advance, then controlled rotating speed by load motor, it is ensured that being rotated with the rotating speed set by measured motor, test each speed point the most successively, collecting test data are analyzed.Equally provided user that load is set in advance by load motor under automatic torque test pattern, it is ensured that by measured motor under this load properly functioning, last collecting test data are analyzed.Two kinds of automatic test patterns are that electromechanical testing provides a quickly testing scheme for simplicity, and user can be recognized easily and intuitively by the general information of measured motor, such as pressure point of maximum efficiency, peak power output etc..Additionally, user can realize accurately testing by the test point configuring more crypto set, in order to obtain more detailed motor performance and parameter.Simultaneously under automatic test pattern, user can configure under the test parameter that some are special, such as torque mode, and moment of torsion is set to 0, can test by measured motor parameters under no-load condition.
Therefore test is a kind of quick testing scheme of extremely convenient automatically, and it is the highest to test degree of freedom, user can carry out profiling, labor by configuration testing point to the performance of motor completely, by the way of configuring special test point, motor can be carried out stall test, no load test etc. simultaneously.
Manual test is divided into two kinds equally, manual measurement of rotating speed and manual torque test, both of which is all manually setting speed or moment of torsion, rotating speed or load capacity is ensured again by load motor, the control to PA can be discharged under this pattern, now user can utilize the analytic function of MDA itself to be extended motor analyzing, and such as voltage, electric current, power factor, power, efficiency, frequency, harmonic wave, three-phase imbalance, waveform, frequency spectrum, rotating speed, moment of torsion, mechanical output etc. are measured.
Form export function is to test data, and motor information exports to excel form, and can directly support to print, form content is divided into page two, page 1 is electromechanical testing and motor is correlated with summary info, including following content: test information, the information such as including test person, remarks, testing time;Motor information, the information such as including Rated motor voltage, nominal torque;Maximum value information, including the test information of motor when maximum (top) speed, moment of torsion, output, efficiency.
One servomotor of the present invention test system, the motor of test system and driver analyser use 3 power boards for test by the input electrical quantity of measured motor, electromechanical testing board is used for moment of torsion and the rotating speed of testing of electric motors output, servomotor reaches control accuracy height, the effect of fast response time, performance and the quality index of motor are greatly improved, and the advantage that the velocity of discharge is fast, stability is high;The power module power consumption of native system is little, and the life-span is long so that system is more firm.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit; although the present invention being described in detail with reference to above-described embodiment; the detailed description of the invention of the present invention still can be modified or equivalent by those of ordinary skill in the field; these are without departing from any amendment of spirit and scope of the invention or equivalent, all within the claims that application is awaited the reply.

Claims (6)

1. a servomotor test system, it is characterized in that, described servomotor test system includes industrial computer and the tested motor driver being connected respectively with described industrial computer, motor drive power supply, data acquisition module, power analyzer, load motor driver, described tested motor driver and the electrical connection of described motor driver, the other end of described data acquisition module is connected to by measured motor, described power analyzer is connected to described rotating speed torque drivers, described load motor driver is respectively connecting to load motor and energy feedback type load, described power analyzer is electrically connected by measured motor with described;Described motor drive power supply includes AC/DC power module, the ac input end of AC/DC power module is connected with alternating current power supply, the both positive and negative polarity of AC/DC power module DC output end is connected with direct current generator, the control end of AC/DC power module is connected with battery voltage sampling circuit by voltage limiting circuit, the both positive and negative polarity of battery voltage sampling circuit is connected with the both positive and negative polarity of accumulator, it is connected current limiting resistance between the negative pole and the positive pole of AC/DC power module DC output end of accumulator, it is connected between the positive pole and the negative pole of AC/DC power module DC output end of accumulator and has wire.
Servomotor the most according to claim 1 test system, it is characterised in that the software system of described servomotor test system includes that testing module, data analysis module and form derives module.
Servomotor the most according to claim 2 test system, it is characterised in that described test module includes automatically testing and manual test.
Servomotor the most according to claim 3 test system, it is characterised in that described automatic test includes automatic measurement of rotating speed and automatic torque test.
Servomotor the most according to claim 1 test system, it is characterised in that the winding of motor that described inversion assembly is configured to be connected by described motor driver after described motor driver power-off is to described discharging capacitors.
Servomotor the most according to claim 1 test system, it is characterized in that, described motor driver also includes that controller sends pulse to control the conducting of described switching device and Guan Bi with the switching device to described inversion assembly, and wherein said controller is configured to: when the motor that described motor driver power-off and described motor driver connect runs described switching device to described inversion assembly send with its time properly functioning as pulse so that described motor is properly functioning;And when described motor driver power-off and described motor stop, the described switching device of described inversion assembly is sent the pulse different time properly functioning from it to avoid described motor to run.
CN201610485180.6A 2016-06-28 2016-06-28 Servo motor testing system Pending CN105954676A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106680713A (en) * 2017-01-05 2017-05-17 中国科学院上海光学精密机械研究所 Model selection comparison test and motion parameter determination method for electric machine and driver thereof
CN111208423A (en) * 2020-01-14 2020-05-29 苏州市极合智能科技有限公司 Automatic motor aging test method
CN114089187A (en) * 2021-11-29 2022-02-25 中车大连机车车辆有限公司 Method for monitoring and analyzing three-phase imbalance of alternating current motor of diesel locomotive

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US7937993B2 (en) * 2002-12-20 2011-05-10 Spx Corporation Apparatus and method for starter RPM detection
CN202339399U (en) * 2011-11-07 2012-07-18 重庆明宝科技发展有限公司 Motor testing system
CN102656782A (en) * 2009-12-16 2012-09-05 日立汽车***株式会社 Rotary electrical device for an electric vehicle, drive control device and insulation diagnosis method
CN102829979A (en) * 2011-06-16 2012-12-19 株式会社堀场制作所 Examination systems for electric vehicle and hybrid electric vehicle
CN204086482U (en) * 2014-07-08 2015-01-07 宁波安信数控技术有限公司 A kind of driver performance test system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7937993B2 (en) * 2002-12-20 2011-05-10 Spx Corporation Apparatus and method for starter RPM detection
CN101546352A (en) * 2009-04-10 2009-09-30 清华大学 Type selection method for auxiliary power units of series-type hybrid vehicles
CN102656782A (en) * 2009-12-16 2012-09-05 日立汽车***株式会社 Rotary electrical device for an electric vehicle, drive control device and insulation diagnosis method
CN102829979A (en) * 2011-06-16 2012-12-19 株式会社堀场制作所 Examination systems for electric vehicle and hybrid electric vehicle
CN202339399U (en) * 2011-11-07 2012-07-18 重庆明宝科技发展有限公司 Motor testing system
CN204086482U (en) * 2014-07-08 2015-01-07 宁波安信数控技术有限公司 A kind of driver performance test system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106680713A (en) * 2017-01-05 2017-05-17 中国科学院上海光学精密机械研究所 Model selection comparison test and motion parameter determination method for electric machine and driver thereof
CN106680713B (en) * 2017-01-05 2019-04-19 中国科学院上海光学精密机械研究所 The type selecting of motor and its driver compares test and kinematic parameter determines method
CN111208423A (en) * 2020-01-14 2020-05-29 苏州市极合智能科技有限公司 Automatic motor aging test method
CN114089187A (en) * 2021-11-29 2022-02-25 中车大连机车车辆有限公司 Method for monitoring and analyzing three-phase imbalance of alternating current motor of diesel locomotive

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Application publication date: 20160921