CN202583420U - Testing device for single-phase ac-dc electrical parameters of motor - Google Patents
Testing device for single-phase ac-dc electrical parameters of motor Download PDFInfo
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- CN202583420U CN202583420U CN 201220070655 CN201220070655U CN202583420U CN 202583420 U CN202583420 U CN 202583420U CN 201220070655 CN201220070655 CN 201220070655 CN 201220070655 U CN201220070655 U CN 201220070655U CN 202583420 U CN202583420 U CN 202583420U
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Abstract
The utility model provides a testing device for single-phase ac-dc electrical parameters of a motor, which belongs to the technical field of motor parameter testing, and solves the problems that motor parameter testing is difficult and time-consuming. The device comprises a display module, an input button, a single-chip microcomputer, a current detection module and a voltage detection module, wherein the input button and the display module are connected to the single-chip microcomputer respectively, a first optoelectronic isolation unit is connected between the current detection module and the single-chip microcomputer, and a second optoelectronic isolation unit is connected between the voltage detection module and the single-chip microcomputer. The current detection module comprises a current measuring-range selection unit, wherein the first optoelectronic isolation unit is connected between the output port of the single-chip microcomputer and then input end of the current measuring-range selection unit; and the voltage detection module comprises a voltage measuring-range selection unit, wherein the second optoelectronic isolation unit is connected between the output port of the single-chip microcomputer and the voltage measuring-range selection unit. The device can test multiple motor parameters via two detection circuits, which reduces the testing difficulty and the testing length.
Description
Technical field
The utility model belongs to parameter of electric machine technical field of measurement and test, relates to a kind of proving installation of motor blow-up DC parameter.
Background technology
Motor is the major equipment in the electric system, and the order of accuarcy of its parameter all has significant impact to design, operation, stability analysis and the control adjustment etc. of electric system.In the method for testing of the parameter of electric machine; Most employing normal experiment method; Test, take out the quiet survey method of the test of rotor method, subtransient reactance etc. like no-load characteristic test, three-phase shortcircuit test, little slippage; These conventional test methods once can only measure one or several parameter, need lot of manpower and material resources.At present existing testing research to the parameter of electric machine mainly concentrates on following two aspects: the one, the undesired signal that under motor operating state, adds make it produce a transient process; With computing machine this transient process is simulated the parameter of saturation of identification motor under this running status then; The 2nd, under the synchronous motor stationary state; Discern the parameter of synchronous motor according to the frequency response test method; Promptly the motor under the static state is applied the pumping signal of different frequency, identify the unsaturated parameter of synchronous motor by these pumping signals and corresponding response thereof.No matter be which kind of test method, all receive equipment and condition effect, can not realize detecting electrical quantitys such as voltage, electric current, power and power factor (PF) when moving under the different conditions simultaneously, thereby weigh the quality of a motor performance.
Summary of the invention
There are the problems referred to above in the utility model to existing technology, has proposed a kind of proving installation of motor blow-up DC parameter, and this device is tested a plurality of parameters of electric machine through two alignment detection circuits, reduces difficulty of test and length.
The utility model is realized through following technical proposal: a kind of proving installation of motor blow-up DC parameter; This device comprises display module and input button; It is characterized in that; The voltage detection module that this device also comprises single-chip microcomputer, is used to detect the current detection module of current of electric parameter and is used to detect the electric moter voltage parameter, described voltage detection module, current detection module and input button are connected to the input port of single-chip microcomputer, and the delivery outlet of said single-chip microcomputer connects display module; Be connected with the first photoelectricity isolated location between described current detection module and the single-chip microcomputer; And be connected with the second photoelectricity isolated location between voltage detection module and the single-chip microcomputer, and described current detection module comprises the current range selected cell, the delivery outlet of described single-chip microcomputer connects the input port of the first photoelectricity isolated location; The delivery outlet of the first photoelectricity isolated location connect the current range selected cell input end; Described voltage detection module comprises the voltage range selected cell, and the delivery outlet of described single-chip microcomputer also connects the second photoelectricity isolated location, and the delivery outlet of the second photoelectricity isolated location connects the input end of voltage range selected cell.
Electric current and voltage under the different running statuses of motor are detected with voltage detection module through current detection module, detect range and can instruct to single-chip microcomputer, by the detection range of single-chip microcomputer adjustment electric current, voltage by input button input control range.Detect electric current and flow to single-chip microcomputer through the isolation of second photoelectricity through isolation of first photoelectricity or voltage source.Single-chip microcomputer directly shows voltage or the electric current that detects on display module, or according to the formula of setting the voltage and current that detects is calculated corresponding power or power factor (PF) etc.
In the proving installation of above-mentioned motor blow-up DC parameter; Described current detection module also comprises current signal input end, current signal amplifier, secondary current signal amplifier and first AD conversion unit, and described current signal input end, current signal amplifier, current range selected cell, secondary current signal amplifier, first AD conversion unit and the first photoelectricity isolated location are connected respectively successively.
The current signal input end connects will detect the motor check point; Detect the analog current signal of this motor; After measurement range selection control, reach after detection signal once amplifies, and the amplification back is passed through to be received by single-chip microcomputer after the first photoelectricity isolated location is isolated convert the digital signal that makes things convenient for single-chip microcomputer identification and calculation process to through first AD conversion unit after once more at certain range.
In the proving installation of above-mentioned motor blow-up DC parameter; Described voltage detection module also comprises voltage signal input end, voltage signal amplifier, secondary voltage signal amplifier and second AD conversion unit, and described voltage signal input end, voltage signal amplifier, voltage range selected cell, secondary voltage signal amplifier, second AD conversion unit and the second photoelectricity isolated location are connected respectively successively.
The voltage signal input end connects will detect the electric moter voltage check point; Detect the simulation of this motor and press signal; After measurement range selection control, reach after detection signal once amplifies, and the amplification back is passed through to be received by single-chip microcomputer after the second photoelectricity isolated location is isolated convert the digital signal that makes things convenient for single-chip microcomputer identification and calculation process to through second AD conversion unit after once more at certain range.
In the proving installation of above-mentioned motor blow-up DC parameter, the delivery outlet of described single-chip microcomputer connects the input port of first AD conversion unit through the first photoelectricity isolated location.The photoelectricity isolated location has the forceful electric power circuit of isolation and light current circuit, prevents that the forceful electric power circuit from producing interference or destruction to the light current circuit chip.
In the proving installation of above-mentioned motor blow-up DC parameter, the delivery outlet of described single-chip microcomputer connects the second AD conversion unit input port through the second photoelectricity isolated location.
In the proving installation of above-mentioned motor blow-up DC parameter, the delivery outlet of described single-chip microcomputer also is connected with serial ports changes USB interface.Serial ports changes USB interface makes this device directly to insert computer, converts serial data to usb data, and it is more intelligent to make follow-up parameter handle.
In the proving installation of above-mentioned motor blow-up DC parameter, described current signal amplifier, secondary current signal amplifier, voltage signal amplifier, secondary voltage signal amplifier are respectively the feedback operational amplification circuit that the TLC4502 amplifier is formed.
In the proving installation of above-mentioned motor blow-up DC parameter, described single-chip microcomputer is the TMS320F28335 main control chip.
In the proving installation of above-mentioned motor blow-up DC parameter, described single-chip microcomputer is the C8051F020-100P single-chip microcomputer.
In the proving installation of above-mentioned motor blow-up DC parameter, described display module is for being total to the anode charactron.Be used for display voltage, electric current, power, power factor (PF), frequency and rotating speed etc.
Compared with prior art, the utlity model has following advantage:
1, the utility model two-way detects the voltage and current parameter under the different running statuses of motor respectively, carries out computing through single-chip microcomputer, can test multiple parameter such as power, power factor (PF) and the frequency etc. of motor, thereby reduce difficulty of test and length.
2, the utility model can be directly connected in computer, thereby has utilized the ease for use and the portability of computer, can make the convenient storage of analysis data of detection.
What 3, the utility model was used employing is the feedback operational amplification circuit that the TLC4502 amplifier is formed.Have automatic calibration function, and have high precision, high-gain, low distortion and good PSRR and common-mode rejection ratio, characteristics such as driving force is strong reduce the magnification distortion degree.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure 1, the current signal input end; 2, current signal amplifier; 3, current range selected cell; 4, secondary current signal amplifier; 5, first AD conversion unit; 6, the first photoelectricity isolated location; 7, single-chip microcomputer; 8, serial ports changes USB interface; 9, display module; 10, input button; 11, voltage signal input end; 12, voltage signal amplifier; 13, voltage range selected cell; 14, secondary voltage signal amplifier; 15, second AD conversion unit; 16, the second photoelectricity isolated location.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
As shown in Figure 1, the proving installation of this motor blow-up DC parameter comprises display module 9 and input button 10.The display module 9 here is 4 groups 4 anode charactrons altogether.Also comprise and be used for each functions such as collection, computing, demonstration are carried out the single-chip microcomputer 7 of control and treatment, the voltage detection module that is used to detect the current detection module of current of electric parameter and is used to detect the electric moter voltage parameter.Here used single-chip microcomputer 7 can be the C8051F020-100P single-chip microcomputer.The C8051F020-100P single-chip microcomputer has 4352 byte inner data RAM, 64K byte flash memory, and this single-chip microcomputer 7 can provide higher travelling speed, and cost is low.Voltage detection module, current detection module and input button 10 are connected to single-chip microcomputer 7.The single-chip microcomputer here also can be selected the TMS320F28335 main control chip for use.The delivery outlet of single-chip microcomputer connects display module 9 and is connected with serial ports commentaries on classics USB interface 8.
Be connected with the first photoelectricity isolated location 6 between current detection module and the single-chip microcomputer 7; And be connected with the second photoelectricity isolated location 16 between voltage detection module and the single-chip microcomputer 7; Current detection module comprises current range selected cell 3; The delivery outlet of single-chip microcomputer 7 connects the input port of the first photoelectricity isolated location 6, and the delivery outlet of the first photoelectricity isolated location 6 connects the input end of current range selected cell 3, and voltage detection module comprises voltage range selected cell 13; The delivery outlet of single-chip microcomputer 7 also connects the input end of the delivery outlet connection voltage range selected cell 13 of the second photoelectricity isolated location, 16, the second photoelectricity isolated locations 16.
Current detection module also comprises current signal input end 1, current signal amplifier 2, secondary current signal amplifier 4 and first AD conversion unit 5, and current signal input end 1, current signal amplifier 2, current range selected cell 3, secondary current signal amplifier 4, first AD conversion unit 5 and the first photoelectricity isolated location 6 are connected respectively successively.The current signal amplifier 2 here, secondary current signal amplifier 4, voltage signal amplifier 12, secondary voltage signal amplifier 14 are respectively the feedback operational amplification circuit that the TLC4502 amplifier is formed.
Voltage detection module also comprises voltage signal input end 11, voltage signal amplifier 12, secondary voltage signal amplifier 14 and second AD conversion unit 15, and voltage signal input end 11, voltage signal amplifier 12, voltage range selected cell 13, secondary voltage signal amplifier 14, second AD conversion unit 15 and second photoelectricity are isolated respectively and is connected successively.The delivery outlet of single-chip microcomputer 7 connects second AD conversion unit, 15 input ports through the second photoelectricity isolated location 16.The delivery outlet of single-chip microcomputer 7 connects the input port of first AD conversion unit 5 through the first photoelectricity isolated location 6.
The principle of work of the proving installation of this motor blow-up DC parameter is following:
A branch road: current input terminal receives current of electric; Amplifying the back through current signal amplifier 2 passes through the electric current that meets this range through measurement range selection; Carrying out electric current through current amplifier once more amplifies; Sensed current signal after fully amplifying is carried out the conversion of simulating signal and digital signal through first AD conversion unit 5, isolates the back through the first photoelectricity isolated location 6 and is received by single-chip microcomputer 7.The control signal of single-chip microcomputer 7 also is simultaneously to control first AD conversion unit 5 respectively through the first photoelectricity isolated location 6 to carry out the selection and the setting of current range with current range selected cell 3.When the signal of input button 10 inputs was the testing of electric motors current parameters, then single-chip microcomputer 7 showed the electric current that receives at display module 9.
Another branch road: voltage input end receives electric moter voltage; Amplifying the back through voltage signal amplifier 12 selects the voltage that meets this range is passed through through voltage range; Carry out voltage amplification through voltage amplifier once more; Detectable voltage signals after fully amplifying is carried out the conversion of simulating signal and digital signal through second AD conversion unit 15, isolates the back through the second photoelectricity isolated location 16 and is received by single-chip microcomputer 7.The control signal of single-chip microcomputer 7 also is simultaneously to control second AD conversion unit 15 respectively through the second photoelectricity isolated location 16 to carry out the selection and the setting of voltage range with voltage range selected cell 13.When the signal of input button 10 inputs was the testing of electric motors voltage parameter, then single-chip microcomputer 7 showed the electric current that receives at display module 9.
When the signal of input button 10 input is other parameters such as testing of electric motors power, power factor (PF), frequency and rotating speed; Then single-chip microcomputer 7 carries out algorithm development according to the electric current that receives and voltage signal according to the formula of setting and goes out parameter such as testing of electric motors power, power factor (PF), frequency and rotating speed and on display module 9, show; Also can change USB interface 8 through the serial ports that is connected with single-chip microcomputer 7 simultaneously is connected with computer; Be placed on test result on the computer and show, also can transplant its other places such as storing computer into.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used current signal input end 1, current signal amplifier 2, current range selected cell 3, secondary current signal amplifier 4, first AD conversion unit 5, the first photoelectricity isolated location 6, single-chip microcomputer 7, serial ports to change terms such as USB interface 8, display module 9, input button 10, voltage signal input end 11, voltage signal amplifier 12, voltage range selected cell 13, secondary voltage signal amplifier 14, second AD conversion unit 15, the second photoelectricity isolated location 16 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (10)
1. the proving installation of a motor blow-up DC parameter; This device comprises display module (9) and input button (10); It is characterized in that; The voltage detection module that this device also comprises single-chip microcomputer (7), is used to detect the current detection module of current of electric parameter and is used to detect the electric moter voltage parameter; Described voltage detection module, current detection module and input button (10) are connected to the input port of single-chip microcomputer (7); The delivery outlet of said single-chip microcomputer (7) connects display module (9), is connected with the first photoelectricity isolated location (6) between described current detection module and the single-chip microcomputer (7), and is connected with the second photoelectricity isolated location (16) between voltage detection module and the single-chip microcomputer (7); Described current detection module comprises current range selected cell (3); The delivery outlet of described single-chip microcomputer (7) connects the input port of the first photoelectricity isolated location (6), and the delivery outlet of the first photoelectricity isolated location (6) connects the input end of current range selected cell (3), and described voltage detection module comprises voltage range selected cell (13); The delivery outlet of described single-chip microcomputer (7) also connects the second photoelectricity isolated location (16), and the delivery outlet of the second photoelectricity isolated location (16) connects the input end of voltage range selected cell (13).
2. the proving installation of motor blow-up DC parameter according to claim 1; It is characterized in that; Described current detection module also comprises current signal input end (1), current signal amplifier (2), secondary current signal amplifier (4) and first AD conversion unit (5), and described current signal input end (1), current signal amplifier (2), current range selected cell (3), secondary current signal amplifier (4), first AD conversion unit (5) and the first photoelectricity isolated location (6) are connected respectively successively.
3. the proving installation of motor blow-up DC parameter according to claim 2; It is characterized in that; Described voltage detection module also comprises voltage signal input end (11), voltage signal amplifier (12), secondary voltage signal amplifier (14) and second AD conversion unit (15), and described voltage signal input end (11), voltage signal amplifier (12), voltage range selected cell (13), secondary voltage signal amplifier (14), second AD conversion unit (15) and the second photoelectricity isolated location (16) are connected respectively successively.
4. the proving installation of motor blow-up DC parameter according to claim 2 is characterized in that, the delivery outlet of described single-chip microcomputer (7) connects the input port of first AD conversion unit (5) through the first photoelectricity isolated location (6).
5. the proving installation of motor blow-up DC parameter according to claim 3 is characterized in that, the delivery outlet of described single-chip microcomputer (7) connects second AD conversion unit (15) input port through the second photoelectricity isolated location (16).
6. the proving installation of motor blow-up DC parameter according to claim 3 is characterized in that, the delivery outlet of described single-chip microcomputer (7) also is connected with serial ports changes USB interface (8).
7. the proving installation of motor blow-up DC parameter according to claim 6; It is characterized in that described current signal amplifier (2), secondary current signal amplifier (4), voltage signal amplifier (12), secondary voltage signal amplifier (14) are respectively the feedback operational amplification circuit that the TLC4502 amplifier is formed.
8. the proving installation of motor blow-up DC parameter according to claim 1 is characterized in that, described single-chip microcomputer (7) is the TMS320F28335 main control chip.
9. the proving installation of motor blow-up DC parameter according to claim 1 is characterized in that, described single-chip microcomputer (7) is the C8051F020-100P single-chip microcomputer.
10. the proving installation of motor blow-up DC parameter according to claim 1 is characterized in that, described display module (9) is for being total to the anode charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070655 CN202583420U (en) | 2012-02-29 | 2012-02-29 | Testing device for single-phase ac-dc electrical parameters of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070655 CN202583420U (en) | 2012-02-29 | 2012-02-29 | Testing device for single-phase ac-dc electrical parameters of motor |
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| Publication Number | Publication Date |
|---|---|
| CN202583420U true CN202583420U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220070655 Expired - Fee Related CN202583420U (en) | 2012-02-29 | 2012-02-29 | Testing device for single-phase ac-dc electrical parameters of motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680577A (en) * | 2017-01-13 | 2017-05-17 | 上海中科深江电动车辆有限公司 | Single phase voltage synchronization signal detection system and method |
-
2012
- 2012-02-29 CN CN 201220070655 patent/CN202583420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680577A (en) * | 2017-01-13 | 2017-05-17 | 上海中科深江电动车辆有限公司 | Single phase voltage synchronization signal detection system and method |
| CN106680577B (en) * | 2017-01-13 | 2019-08-06 | 上海中科深江电动车辆有限公司 | The system and method for single-phase voltage synchronization signal detection |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150229 |
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| EXPY | Termination of patent right or utility model |