CN204495970U - Energy-saving of motor system test platform - Google Patents
Energy-saving of motor system test platform Download PDFInfo
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- CN204495970U CN204495970U CN201520131469.9U CN201520131469U CN204495970U CN 204495970 U CN204495970 U CN 204495970U CN 201520131469 U CN201520131469 U CN 201520131469U CN 204495970 U CN204495970 U CN 204495970U
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Abstract
A kind of energy-saving of motor system test platform, comprise primary power cabinet, control and measuring platform and organize Motor Measuring System more, described primary power cabinet is that whole test platform is powered by external power supply, primary power cabinet is directly band year inverter supply after pressure regulator and junction box, band carries the operation of the tested motor of Frequency Converter Control, tested motor with accompany examination motor be connected by torque sensor, the output that band carries frequency converter is connected with the input of tested motor, the input of examination motor is accompanied to be connected with the secondary side of loading and frequency conversion device, accompany examination motor through loading and frequency conversion device by electric energy feedback to pressure regulator primary side, it is torque sensor and control and measuring platform power that described primary power cabinet connects accessory power supply cabinet.The utility model adopts high precision measuring instrument and the communication technology, improves measuring accuracy and testing efficiency, reduces the energy loss in test process, extend the test specification of conventional motors platform.
Description
Technical field
The utility model relates to electric system test platform technical field, particularly a kind of energy-saving electrical machine type test, frequency conversion system efficiency test and transformer efficiency test platform.
Background technology
Electric system test platform is the experimental facilities for detecting motor performance and frequency converter performance.Be applicable to the test of motor manufacturer and motor and frequency converter research institution.Experimental project comprises the test of motor type, frequency converter efficiency test, the efficiency test etc. of frequency converter and electric system efficiency test and transformer.
At present, the test method that domestic motor manufacturer adopts usually is: utilize the mode of tested motor drag dynamometer machine to detect motor, variable-frequency motor only measures the operational factor under power frequency condition, needs the links of tester to motor of specialty to test in the process of test; Under this mode, the electromechanical testing link cycle is long, and the precision of equipment is low, and artificial participation ratio is high, and in test process, power consumption is large.After variable-frequency motor dispatches from the factory, need choose suitable frequency converter collaborative work, the type selecting of frequency converter is general all rule of thumb, and the whether suitable not relevant test data of type selecting is as foundation.
Utility model content
The purpose of this utility model there are provided a kind of electric system test platform, solves current electromechanical testing platform power consumption serious, well can not measure the efficiency of electric system under different frequency, the problem that in use procedure, artificial participation ratio is too high.
The purpose of this utility model is achieved by the following technical programs:
Energy-saving of motor system test platform, comprise primary power cabinet, control and measuring platform and organize Motor Measuring System more, described Motor Measuring System comprises band and carries frequency converter, tested motor, torque sensor, accompany examination motor and loading and frequency conversion device, described primary power cabinet is that whole test platform is powered by external power supply, primary power cabinet is directly band year inverter supply after pressure regulator and junction box, band carries the operation of the tested motor of Frequency Converter Control, tested motor with accompany examination motor be connected by torque sensor, the output that band carries frequency converter is connected with the input of tested motor, the input of examination motor is accompanied to be connected with the secondary side of loading and frequency conversion device, accompany examination motor through loading and frequency conversion device by electric energy feedback to pressure regulator primary side, it is torque sensor and control and measuring platform power that described primary power cabinet connects accessory power supply cabinet, described control and measuring platform for test, monitor and recording strip carry frequency converter, tested motor, torque sensor, accompany examination motor, loading and frequency conversion device and pressure regulator electric parameter.
Described control and measuring platform comprises power analyzer, oscillograph and industrial computer; Described power analyzer is used for measuring tape and carries frequency converter input voltage, input current, output voltage and output current, tach signal when tested motor runs and dtc signal; Described oscillograph is used for the rotating speed of voltage current waveform when observing energy-saving of motor system test platform run and tested motor and torque profile; Described industrial computer is used for obtaining electric parameter when electrical machine energy-saving test platform runs, and controls the travelling speed of tested motor, simulates the load characteristic of tested motor, draw the testing journal sheet of tested motor.
Described Motor Measuring System adopts energy feedback type structure, and a band year frequency converter drags tested motor and runs by given rotating speed, and loading and frequency conversion device drags the output load characteristic of accompanying the tested motor of examination motor simulation; Described tested motor and accompany examination motor there is speed encoder, described band carries frequency converter and loading and frequency conversion utensil has speed acquisition module, the output signal of the speed encoder of described tested motor is connected to the speed acquisition module that band carries frequency converter, accompany the speed encoder output signal of examination motor to be connected to the speed acquisition module of loading and frequency conversion device, the rotating speed that torque sensor exports and dtc signal are connected to the parallel port of power analyzer through five core shielded cables.
Serial Port Line and netting twine is adopted to be interconnected between described control and measuring platform and Motor Measuring System, system adopts the communication mode of one master and multiple slaves, by MODBUS and tcp/ip communication agreement, realize the reading of electrical energy parameter and the selection of Motor Measuring System and control when energy-saving of motor system test platform runs.
External voltage becomes owner of power cabinet by cable leading, the loading and frequency conversion device of pressure regulator, accessory power supply cabinet and Motor Measuring System is received respectively through superpotential busbar and isolating switch, the output terminal of pressure regulator is connected to junction box, after the busbar in cabinet and isolating switch, the band being connected to Motor Measuring System carries frequency converter; Adopt the mode that strong and weak electricity separately connects up in accessory power supply cabinet, control and measuring platform, torque sensor adopt isolating transformer isolation power supply.
The utility model has the advantages that: energy-saving of motor system test platform, adopt high-precision sensor and advanced measurement mechanism to ensure that the authenticity of test data; Feed-back type electrical structure, decreases energy dissipation during electromechanical testing; Utilize industrial computer to realize the automatic test of motor, realize automatically calculating and process to the data generated, and automatically generate and printing test form, test macro covers the low-voltage induction motor under different capacity grade; Adopt host computer to be directly connected with frequency converter by the mode of communication, decrease the cost of PLC.Whole energy-saving of motor system test platform architecture is simple, and application is convenient.
Accompanying drawing explanation
Accompanying drawing 1, electrical machine energy-saving test platform hardware structure diagram;
Accompanying drawing 2, electrical machine energy-saving test platform electrical schematic diagram;
Accompanying drawing 3, electrical machine energy-saving test platform Principle of Communication figure;
Accompanying drawing 4, electrical machine energy-saving test platform host computer monitoring of software process flow diagram;
Accompanying drawing 5, electrical machine energy-saving test platform PC control software flow pattern.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Energy-saving of motor system test platform, comprise primary power cabinet 1, control and measuring platform 6 and many group Motor Measuring System 4, described Motor Measuring System 4 comprises band and carries frequency converter, tested motor, torque sensor, accompanies examination motor and loading and frequency conversion device, and electrical machine energy-saving test platform hardware structure diagram and electrical schematic diagram are respectively as depicted in figs. 1 and 2.External voltage becomes owner of power cabinet 1 by cable leading, the loading and frequency conversion device of pressure regulator 2, accessory power supply cabinet 5 and Motor Measuring System 4 is received respectively through superpotential busbar and isolating switch, the output terminal of pressure regulator 2 is connected to junction box 3, after the busbar in cabinet and isolating switch, the band being connected to Motor Measuring System 4 carries frequency converter.The control port of the equipment such as blower fan, purlin car, switch, illumination reserved by primary power cabinet; The mode adopting strong and weak electricity separately to connect up in accessory power supply cabinet 5 reduces the impact disturbed, and control and measuring platform, high precision current transformer, torque sensor, intelligent electric meter and photoelectric isolation module adopt isolating transformer isolation power supply.
Control and measuring platform 6 comprises industrial computer, power analyzer and oscillograph.Power analyzer is mainly used to obtain the rotational speed and torque of tested motor and the electric current and voltage at band year frequency converter two ends; Torque and rotational speed signal is recorded by torque sensor, is sent to power analyzer by shielded cable; Voltage signal directly adopts voltage clamp to obtain, and current signal adopts high precision current transformer to record.Oscillograph is mainly used to instantaneous voltage when measuring table runs and current waveform, the observation rotating speed of torque sensor and dtc signal; Industrial computer as the core of electrical machine energy-saving test platform, for carrying frequency converter rotating speed given, the reading of loading and frequency conversion device rotating speed and the given of torque, the Storage and Processing of measurement data, the generation of testing journal sheet and printing etc.
Tested motor and accompany examination motor be placed on horizonal base plate, be connected by torque sensor.The output that band carries frequency converter is connected with the input of tested motor, accompanies the input of examination motor to be connected with the secondary side of loading and frequency conversion device.The rotating speed coder output signal of tested motor is connected to the rotating speed acquisition module that band carries frequency converter, accompanies the rotating speed coder output signal of examination motor to be connected to the rotating speed acquisition module of loading and frequency conversion device.Motor Measuring System 4 is divided into 3 sub-platforms: below 50KW test macro, 50KW ~ 160KW test macro, more than 160KW test macro.
Energy-saving of motor system test platform adopts the communication mode of one master and multiple slaves, and electrical machine energy-saving test platform Principle of Communication figure as shown in Figure 3.Industrial computer is as main frame, other equipment are as from machine, carry frequency converter with 2 pieces of intelligent electric meters with the band in each Motor Measuring System by MODBUS-RTU communication protocol to be connected, adopt periodic manner to carry frequency converter to band and send rotational speed setup instruction and the data read in intelligent electric meter; Be connected with the loading and frequency conversion device in Motor Measuring System 4 by ICP/IP protocol, periodically read and accompany the data of examination motor speed scrambler and send the given instruction of torque to loading and frequency conversion device; By the serial communication protocol that power analyzer carries, realize the reading to power analyzer measurement data.
Industrial computer adopts Labview2010 as upper computer software, is programmed, realizes reading and the write-in functions of serial communication, the data read-write operation under MODBUS-RTU agreement and the reading and writing data function under ICP/IP protocol by Labview2010 development environment.The start stop operation of upper computer software control system, choosing of Motor Measuring System 4 sub-platform, the reading of slave computer measurement data and issuing of controling parameters, the enforcement poke of data and automatic analysis, the generation of testing journal sheet and printing.Electrical machine energy-saving test platform host computer monitoring of software process flow diagram as shown in Figure 4, initialize communications port, the related data of setting monitoring, the data of setting are sent to slave computer according to the communication protocol of correspondence, after slave computer receives the request of host computer, just by data upload to host computer, communication port is just closed after receiving data and will is presented in host computer interface after the data uploaded storage by host computer, subsequently, host computer calling data process software Module Generation testing journal sheet carry out storing and printing.
PC control interface has suddenly stops control mode, manual control mode and automatic control mode, and working time, rotating speed, torque, maximum (top) speed, torque capacity, rotating speed ascending amount etc. all set at front panel.Under manual control mode, the parameters such as the rotating speed of the tested motor of the manual input of need and load torque; Automatic control mode is divided into permanent torque automatically to control automatically to control two kinds with asquare torque.As shown in Figure 5, initialization control system, selects corresponding control mode to electrical machine energy-saving test platform PC control software flow pattern, correctly sets correlation parameter according to the requirement of control inerface, can obtain measurement of correlation parameter after working procedure.
Energy-saving of motor system test platform has the function that work frequency circuit switches mutually with frequency changer circuit, when power frequency equipment measured by needs, directly rotary switch is rotated to power frequency shelves; When frequency conversion equipment measured by needs, directly rotary switch is rotated to frequency conversion shelves.
Energy-saving of motor system test platform described in the utility model meets the type test of low-voltage three phase asynchronous variable-frequency motor, can also the work efficiency of Measurement for Inverter device and the operational efficiency etc. of transformer.
Main circuit is adjusted to converting operation pattern, No. 6 voltage clamps are clipped in band respectively and carry the input busbar of frequency converter and export on busbar, and the other end is directly connected to the voltage input end mouth of power analyzer; Three-phase input cable and the three-phase output cable of frequency converter are each passed through high precision current transformer, and the outgoing side of mutual inductor is connected to the current receiv port of power analyzer through Signal transmissions shielded cable.Measuring tape carries the voltage and current signal of frequency converter primary side, obtains the power input that band carries frequency converter; Measuring tape carries output voltage and the current signal of frequency converter, obtains the output power that band carries frequency converter; Measure output speed and the dtc signal of motor, obtain the output shaft power of motor.Carried the output shaft power of the power input of frequency converter, output power and motor by contrast attenation factor, obtain the operational efficiency of the operational efficiency of frequency converter, the operational efficiency of motor and system.
Main circuit is adjusted to power frequency operation pattern, measure the resistance value of motor three-phase windings.Regulate pressure regulator to make output voltage be 0.4 times of rated voltage, open motor and run.Open pressure regulator and control motor, increase pressure regulator output voltage gradually, when voltage to be output is ratings, closes pressure regulator and control motor.Measure input voltage and the input current of tested motor, obtain tested power input to a machine; Measure output speed and the Driving Torque of tested motor, obtain the output shaft power of tested motor.Read test motor stator temperature, when temperature no longer changes, stops motor running, measures the resistance value of motor three-phase windings.By measuring the parameters such as the efficiency of open circuit loss, load loss and the motor that automatically can calculate motor above.
Cable between pressure regulator and primary power cabinet is towed out, transformer to be measured is accessed, circuit is switched to power frequency state, with the input voltage of wave tracer measuring transformer, input current and output voltage, output current, calculate the efficiency of transformer; The voltage and current signal on former limit during the no-load running of measuring transformer, the open circuit loss of calculating transformer; Former secondary voltage current data when measuring transformer band different loads runs, calculates the load loss of transformer.In conjunction with the efficiency of transformer, open circuit loss and load loss, more deep analysis and judgement are carried out to transformer whole performance.
Claims (5)
1. energy-saving of motor system test platform, comprises primary power cabinet, control and measuring platform and organizes Motor Measuring System more, it is characterized in that:
Described Motor Measuring System comprises band and carries frequency converter, tested motor, torque sensor, accompany examination motor and loading and frequency conversion device, described primary power cabinet is that whole test platform is powered by external power supply, primary power cabinet is directly band year inverter supply after pressure regulator and junction box, band carries the operation of the tested motor of Frequency Converter Control, tested motor with accompany examination motor be connected by torque sensor, the output that band carries frequency converter is connected with the input of tested motor, the input of examination motor is accompanied to be connected with the secondary side of loading and frequency conversion device, accompany examination motor through loading and frequency conversion device by electric energy feedback to pressure regulator primary side, it is torque sensor and control and measuring platform power that described primary power cabinet connects accessory power supply cabinet,
Described control and measuring platform for test, monitor and recording strip carry frequency converter, tested motor, torque sensor, accompany examination motor, loading and frequency conversion device and pressure regulator electric parameter.
2. energy-saving of motor system test platform according to claim 1, is characterized in that: described control and measuring platform comprises power analyzer, oscillograph and industrial computer; Described power analyzer is used for measuring tape and carries frequency converter input voltage, input current, output voltage and output current, tach signal when tested motor runs and dtc signal; Described oscillograph is used for the rotating speed of voltage current waveform when observing energy-saving of motor system test platform run and tested motor and torque profile; Described industrial computer is used for obtaining electric parameter when electrical machine energy-saving test platform runs, and controls the travelling speed of tested motor, simulates the load characteristic of tested motor, draw the testing journal sheet of tested motor.
3. energy-saving of motor system test platform according to claim 2, it is characterized in that: described Motor Measuring System adopts energy feedback type structure, a band year frequency converter drags tested motor and runs by given rotating speed, and loading and frequency conversion device drags the output load characteristic of accompanying the tested motor of examination motor simulation; Described tested motor and accompany examination motor there is speed encoder, described band carries frequency converter and loading and frequency conversion utensil has speed acquisition module, the output signal of the speed encoder of described tested motor is connected to the speed acquisition module that band carries frequency converter, accompany the speed encoder output signal of examination motor to be connected to the speed acquisition module of loading and frequency conversion device, the rotating speed that torque sensor exports and dtc signal are connected to the parallel port of power analyzer through five core shielded cables.
4. energy-saving of motor system test platform according to claim 1, it is characterized in that: between described control and measuring platform and Motor Measuring System, adopt Serial Port Line and netting twine to be interconnected, system adopts the communication mode of one master and multiple slaves, by MODBUS and tcp/ip communication agreement, realize the reading of electrical energy parameter and the selection of Motor Measuring System and control when energy-saving of motor system test platform runs.
5. energy-saving of motor system test platform according to claim 1, it is characterized in that: external voltage becomes owner of power cabinet by cable leading, the loading and frequency conversion device of pressure regulator, accessory power supply cabinet and Motor Measuring System is received respectively through superpotential busbar and isolating switch, the output terminal of pressure regulator is connected to junction box, after the busbar in cabinet and isolating switch, the band being connected to Motor Measuring System carries frequency converter; Adopt the mode that strong and weak electricity separately connects up in accessory power supply cabinet, control and measuring platform, torque sensor adopt isolating transformer isolation power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520131469.9U CN204495970U (en) | 2015-03-09 | 2015-03-09 | Energy-saving of motor system test platform |
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| CN201520131469.9U CN204495970U (en) | 2015-03-09 | 2015-03-09 | Energy-saving of motor system test platform |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154160A (en) * | 2016-06-28 | 2016-11-23 | 无锡新大力电机有限公司 | A kind of servomotor test system |
| CN107085185A (en) * | 2017-05-15 | 2017-08-22 | 中车株洲电机有限公司 | A kind of motor temperature-raising experiment device |
| CN108152637A (en) * | 2018-01-09 | 2018-06-12 | 青岛海洋电气设备检测有限公司 | A kind of test system and method for frequency converter |
| CN108267659A (en) * | 2018-03-09 | 2018-07-10 | 上海辛格林纳新时达电机有限公司 | A kind of frequency converter test platform and frequency converter test method |
| CN108333508A (en) * | 2017-12-22 | 2018-07-27 | 苏州恒美电子科技股份有限公司 | Power control system for electromechanical testing |
| CN108519231A (en) * | 2018-03-28 | 2018-09-11 | 薛寓怀 | A kind of electric control system and its working method of high-power gear reducer testboard |
| CN108760289A (en) * | 2018-03-28 | 2018-11-06 | 薛寓怀 | A kind of the speed reducer testing stand electric-control system and its working method of biaxial loadings |
| CN109270459A (en) * | 2018-11-20 | 2019-01-25 | 上海电机***节能工程技术研究中心有限公司 | A kind of detection device for motor performance test |
| CN109507588A (en) * | 2019-01-08 | 2019-03-22 | 黄东松 | A kind of energy-saving electrical machine band load pilot system |
| CN109932651A (en) * | 2019-03-27 | 2019-06-25 | 贵州大学 | A kind of permanent magnet synchronous motor experimental provision and experimental method |
| CN111025058A (en) * | 2019-12-10 | 2020-04-17 | 卧龙电气南阳防爆集团股份有限公司 | High-performance test system for pump |
| CN112491324A (en) * | 2020-11-02 | 2021-03-12 | 盛瑞传动股份有限公司 | Motor control integrated system for transmission testing rack |
| CN112649729A (en) * | 2020-11-26 | 2021-04-13 | 天地（常州）自动化股份有限公司 | Test system and test method for comprehensively evaluating control performance of frequency converter |
| CN112946473A (en) * | 2021-03-04 | 2021-06-11 | 重庆隆鑫通航发动机制造有限公司 | Frequency conversion generator comprehensive test system based on temperature influence |
| CN114114013A (en) * | 2021-12-03 | 2022-03-01 | 上海煤科检测技术有限公司 | Feedback small-sized motor test platform |
-
2015
- 2015-03-09 CN CN201520131469.9U patent/CN204495970U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154160A (en) * | 2016-06-28 | 2016-11-23 | 无锡新大力电机有限公司 | A kind of servomotor test system |
| CN107085185A (en) * | 2017-05-15 | 2017-08-22 | 中车株洲电机有限公司 | A kind of motor temperature-raising experiment device |
| CN108333508A (en) * | 2017-12-22 | 2018-07-27 | 苏州恒美电子科技股份有限公司 | Power control system for electromechanical testing |
| CN108152637A (en) * | 2018-01-09 | 2018-06-12 | 青岛海洋电气设备检测有限公司 | A kind of test system and method for frequency converter |
| CN108267659A (en) * | 2018-03-09 | 2018-07-10 | 上海辛格林纳新时达电机有限公司 | A kind of frequency converter test platform and frequency converter test method |
| CN108519231A (en) * | 2018-03-28 | 2018-09-11 | 薛寓怀 | A kind of electric control system and its working method of high-power gear reducer testboard |
| CN108760289A (en) * | 2018-03-28 | 2018-11-06 | 薛寓怀 | A kind of the speed reducer testing stand electric-control system and its working method of biaxial loadings |
| CN109270459A (en) * | 2018-11-20 | 2019-01-25 | 上海电机***节能工程技术研究中心有限公司 | A kind of detection device for motor performance test |
| CN109507588A (en) * | 2019-01-08 | 2019-03-22 | 黄东松 | A kind of energy-saving electrical machine band load pilot system |
| CN109932651A (en) * | 2019-03-27 | 2019-06-25 | 贵州大学 | A kind of permanent magnet synchronous motor experimental provision and experimental method |
| CN111025058A (en) * | 2019-12-10 | 2020-04-17 | 卧龙电气南阳防爆集团股份有限公司 | High-performance test system for pump |
| CN111025058B (en) * | 2019-12-10 | 2024-05-31 | 卧龙电气南阳防爆集团股份有限公司 | High-performance test system for pump |
| CN112491324A (en) * | 2020-11-02 | 2021-03-12 | 盛瑞传动股份有限公司 | Motor control integrated system for transmission testing rack |
| CN112649729A (en) * | 2020-11-26 | 2021-04-13 | 天地（常州）自动化股份有限公司 | Test system and test method for comprehensively evaluating control performance of frequency converter |
| CN112946473A (en) * | 2021-03-04 | 2021-06-11 | 重庆隆鑫通航发动机制造有限公司 | Frequency conversion generator comprehensive test system based on temperature influence |
| CN114114013A (en) * | 2021-12-03 | 2022-03-01 | 上海煤科检测技术有限公司 | Feedback small-sized motor test platform |
| CN114114013B (en) * | 2021-12-03 | 2024-04-09 | 上海煤科检测技术有限公司 | Feedback small motor test platform |
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| CF01 | Termination of patent right due to non-payment of annual fee |