CN110132442A - The magnetic pole surfaces loss measurement device of variable-ratio generator motor - Google Patents
The magnetic pole surfaces loss measurement device of variable-ratio generator motor Download PDFInfo
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- CN110132442A CN110132442A CN201910471096.2A CN201910471096A CN110132442A CN 110132442 A CN110132442 A CN 110132442A CN 201910471096 A CN201910471096 A CN 201910471096A CN 110132442 A CN110132442 A CN 110132442A
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- magnetic pole
- pole surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
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- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
Abstract
The magnetic pole surfaces loss measurement device of variable-ratio generator motor, belongs to motor field, and the present invention is to solve the problems, such as the magnetic pole surfaces loss of measurement variable-ratio electricity generation and electromotion machine rotor.The present invention includes m temp-sensing element, n ultrasonic heat detector, magnetic pole surfaces loss collector and host computer；M temp-sensing element is uniformly embedded between the different strands of rotor windings, is used for detection winding temperature；M temp-sensing element is sent to magnetic pole surfaces by the temperature signal that wired mode will test and collector is lost；N ultrasonic heat detector is uniformly attached on rotor magnetic pole outer surface, for detecting the temperature of rotor pole surface；The temperature signal that n ultrasonic heat detector wirelessly will test is sent to magnetic pole surfaces loss collector；The two class temperature signal of instruction acquisition that magnetic pole surfaces loss collector is assigned according to host computer, magnetic pole surfaces loss collector according to two class temperature data acquisition magnetic pole surfaces lossy datas and are uploaded to host computer.
Description
Technical field
The invention belongs to motor fields, are related to electric motor temp technology.
Background technique
With flourishing for hydropower, variable-ratio generator motor unit constantly emerges in large numbers, with conventional hydraulic generator
Unit compares, and the operating condition of variable-ratio generator motor unit wants the more of complexity.This is because unit will not only be run on
Generating operation mode, but also to run on pumping operation mode.Since air gap is bigger, rotor thermal losses is not conventional turbine-generator units
It is obvious that the safety of unit is not had an impact, and variable-ratio generator motor uses non-salient pole structure, the exchange of stator and rotor
Excitation can generate thermal losses in rotor surface, and since air gap is smaller, radiate bad.Caused rotor burr is more in technique,
The thermal losses of rotor surface is further increased, so the measurement of variable-ratio electricity generation and electromotion machine rotor thermal losses is imperative, but arrives mesh
Before until both at home and abroad still to variable-ratio electricity generation and electromotion machine rotor thermal losses measure relevant report.
Summary of the invention
The invention aims to solve the problems, such as the magnetic pole surfaces loss of measurement variable-ratio electricity generation and electromotion machine rotor, provide
A kind of magnetic pole surfaces loss measurement device of variable-ratio generator motor.
The magnetic pole surfaces loss measurement device of variable-ratio generator motor of the present invention includes m temp-sensing element 1, n
Ultrasonic heat detector 2, magnetic pole surfaces loss collector 3 and host computer 9；
M temp-sensing element 1 is uniformly embedded between the different strands of rotor windings, is used for detection winding temperature；M warming member
Part is sent to magnetic pole surfaces by the temperature signal that wired mode will test and collector 3 is lost；
N ultrasonic heat detector 2 is uniformly attached on rotor magnetic pole outer surface, for detecting the temperature of rotor pole surface；N
The temperature signal that ultrasonic heat detector 2 wirelessly will test is sent to magnetic pole surfaces loss collector 3；
The two class temperature signal of instruction acquisition that magnetic pole surfaces loss collector 3 is assigned according to host computer 9, magnetic pole surfaces loss
Collector 3 is according to two class temperature data acquisition magnetic pole surfaces lossy datas and is uploaded to host computer 9.
Preferably, magnetic pole surfaces loss collector 3 includes central processing unit 3-1, digital signal processor 3-2, A/D conversion
Module 3-3, temperature reader 3-4 and indicator light 3-5；
The winding temperature acquisition instructions of central processing unit 3-1 are assigned to temp-sensing element 1 by digital signal processor 3-2,
The temperature signal output end of temp-sensing element 1 is connected with the input end of analog signal of A/D conversion module 3-3, A/D conversion module 3-3
Digital signal output end be connected with the input terminal of digital signal processor 3-2, the output end of digital signal processor 3-2 in
The winding temperature signal input part of central processor 3-1 is connected；
The rotor pole surface temperature acquisition instruction issuing of central processing unit 3-1 gives temperature reader 3-4, temperature reader
3-4 issues electromagnetic scanning signals by antenna 4, and ultrasonic heat detector 2 receives electromagnetic scanning signals by antenna, and will be collected
Rotor pole surface temperature returns to temperature reader 3-4 by antenna, and the magnetic pole surfaces temperature signal of temperature reader 3-4 is defeated
Outlet is connected with the magnetic pole surfaces temperature signal input of central processing unit 3-1；
The working state signal output end of central processing unit 3-1 is connected with the idsplay order input terminal of indicator light 3-5.
Preferably, magnetic pole surfaces loss collector 3 further includes pulse processor 3-6 and display 3-7；Central processing unit 3-
1 magnetic pole surfaces loss result output end be connected with the input terminal of pulse processor 3-6, the output end of pulse processor 3-6 and
The idsplay order input terminal of display 3-7 is connected.
Preferably, magnetic pole surfaces loss collector 3 is provided with BNC connector on m, and the conducting slip ring 5 of m temp-sensing element 1 is logical
Coaxial cable is crossed to connect with m BNC connector.
Preferably, display 3-7 uses charactron or liquid crystal display.
Preferably, temperature reader 3-4 is using the temperature reader based on Principles of Radar, and temperature reader 3-4 passes through
Antenna 4 issues electromagnetic scanning signals, and ultrasonic heat detector 2 receives electromagnetic scanning signals by antenna, the electromagnetic scanning signals by
The interdigital transducer being arranged inside ultrasonic heat detector 2 is converted into the excusing from death wave of its internal work；Wave is had children outside the state plan again through interdigital transducer
Electromagnetic wave signal is converted into via antenna 4 back to temperature reader 3-4, obtains rotor pole surface temperature.
Preferably, ultrasonic heat detector 2 uses the ultrasonic sensor of model RFM3250-BFS.
Preferably, antenna 4 uses 8dBi circular polarized antenna.
Preferably, host computer 9 uses the industrial control computer of model IPC-710, and host computer 9 passes through cable and magnetic pole surfaces
The RJ-45 Ethernet interface that collector 3 is lost is connected.
Preferably, indicator light 3-5 is used for display working condition, and in effective collection process, indicator light 3-5 is highlighted, if appointing
One group or whole signal return failures, indicator light 3-5 flashing；After acquisition signal success, indicator light 3-5 goes out.
Beneficial effects of the present invention: the present invention obtains two class temperature signals by the way of wired and wireless combine,
The temperature field for obtaining winding internal temperature field and rotor pole surface respectively obtains magnetic pole surfaces damage according to these two types of temperature fields
Consumption, measurement accuracy is high, provides authentic data to the design of variable-ratio generator motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the magnetic pole surfaces loss measurement device of variable-ratio generator motor of the present invention；
Fig. 2 is that apparatus of the present invention measure total functional block diagram；
Fig. 3 is apparatus of the present invention measurement concrete principle block diagram.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
Embodiment: the rotor for the variable-ratio generator motor that the present invention measures has 3 pairs of rotor poles, measuring device of the present invention
Middle design m=18, n=6, i.e., in each rotor pole surface Surface Mount one ultrasonic heat detector 2, inside each rotor magnetic pole
3 temp-sensing elements 1 are embedded in the different strands of winding, 3 temp-sensing elements 1 are for measuring rotor magnetic pole internal temperature, institute
A ultrasonic heat detector 2 is stated for measuring rotor pole surface temperature.
18 temp-sensing elements 1 are sent to magnetic pole surfaces by the temperature signal that wired mode will test and collector are lost
3, in the present embodiment, temp-sensing element 1 uses platinum resistance, and the knot of platinum resistance is designed according to the true form in gap between strand
The conducting slip ring 5 of structure, 18 temp-sensing elements 1 is connected by 18 BNC connectors that collector 3 is lost in coaxial cable and magnetic pole surfaces
It connects.
6 ultrasonic heat detectors 2 are uniformly attached on rotor magnetic pole outer surface, for detecting the temperature of rotor pole surface, are surpassed
Sound heat detector 2 uses the ultrasonic sensor of model RFM3250-BFS；Collected temperature is sent to by 6 ultrasonic heat detectors 2
Collector 3 is lost in magnetic pole surfaces.
Central processing unit 3-1 receives the Transistor-Transistor Logic level from host computer 9 and controls signal, after which is parsed,
Output high level is sent to indicator light 3-5, indicator light 3- during magnetic pole surfaces loss collector 3 is normally carried out collecting work
5 are constantly in highlighted state, until calculating the data of successful acquisition by central processing unit 3-1, obtain magnetic pole surfaces loss
After data, indicator light 3-5 goes out.Above-mentioned loss result through pulse processor 3-6 handle generate binary pulse signal, described two into
Pulse signal processed send to display screen 3-7 and shows.
Central processing unit 3-1 will acquire two class temperature signals after being connected to host computer instruction, and one kind is that wired mode acquires
Rotor windings temperature, another kind of is the rotor pole surface temperature of wireless mode acquisition.If any group of signal returns to failure, refer to
Show that lamp 3-5 can will retransmit acquisition control signal in flashing state, host computer 9, all worked normally until two-way acquires,
Until success returned data.
Wired acquisition rotor windings temperature: acquisition instructions are assigned to digital signal processor 3-2 by central processing unit 3-1,
The temperature signal that temp-sensing element 1 exports is sent to number by becoming digital signal after A/D conversion module 3-3 sampling, conversion
The data are returned to central processing unit 3-1 by signal processor 3-2, digital signal processor 3-2.
Wireless collection rotor pole surface temperature: temperature reader 3-4 issues electromagnetic scanning signals, and passes through 8dBi entelechy
Change antenna to send, ultrasonic heat detector 2 receives the electromagnetic scanning signals by the probe of 8dBi circular polarized antenna, and by pitching
Finger transducer is converted into the excusing from death wave of its internal work；Excusing from death wave is converted into electromagnetic wave signal via antenna through interdigital transducer again
Back to temperature reader 3-4；The propagation characteristic and the linear characteristic relation of temperature of wave are had children outside the state plan, thus the echo for returning to probe
Signal has temperature profile, is used to characterize magnetic pole surfaces temperature in present embodiment；Temperature reader 3-4 extracts what probe returned
Electromagnetic wave signal feature is transferred to central processing unit 3-1.
2 groups of temperature datas that central processing unit 3-1 returns to success calculate temperature difference by temperature field program, and then obtain
Magnetic pole surfaces lossy data, which is shown after pulse processor 3-6 processing by display screen 3-7, is also uploaded to upper
Machine 9.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. the magnetic pole surfaces loss measurement device of variable-ratio generator motor, which is characterized in that including m temp-sensing element (1), n
A ultrasound heat detector (2), magnetic pole surfaces loss collector (3) and host computer (9)；
M temp-sensing element (1) is uniformly embedded between the different strands of rotor windings, is used for detection winding temperature；M temp-sensing element
Magnetic pole surfaces loss collector (3) is sent to by the temperature signal that wired mode will test；
N ultrasonic heat detector (2) is uniformly attached on rotor magnetic pole outer surface, for detecting the temperature of rotor pole surface；N super
The temperature signal that sound heat detector (2) wirelessly will test is sent to magnetic pole surfaces loss collector (3)；
The two class temperature signal of instruction acquisition that magnetic pole surfaces loss collector (3) is assigned according to host computer (9), magnetic pole surfaces loss
Collector (3) is according to two class temperature data acquisition magnetic pole surfaces lossy datas and is uploaded to host computer (9).
2. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 1, which is characterized in that magnetic pole
Surface loss collector (3) includes central processing unit (3-1), digital signal processor (3-2), A/D conversion module (3-3), temperature
Spend reader (3-4) and indicator light (3-5)；
The winding temperature acquisition instructions of central processing unit (3-1) are assigned to temp-sensing element by digital signal processor (3-2)
(1), the temperature signal output end of temp-sensing element (1) is connected with the input end of analog signal of A/D conversion module (3-3), A/D conversion
The digital signal output end of module (3-3) is connected with the input terminal of digital signal processor (3-2), digital signal processor (3-
2) output end is connected with the winding temperature signal input part of central processing unit (3-1)；
The rotor pole surface temperature acquisition instruction issuing of central processing unit (3-1) gives temperature reader (3-4), temperature reader
(3-4) issues electromagnetic scanning signals by antenna (4), and ultrasonic heat detector (2) receives electromagnetic scanning signals by antenna, and will adopt
The rotor pole surface temperature collected is returned to temperature reader (3-4) by antenna, the magnetic pole surfaces of temperature reader (3-4)
Temperature signal output end is connected with the magnetic pole surfaces temperature signal input of central processing unit (3-1)；
The working state signal output end of central processing unit (3-1) is connected with the idsplay order input terminal of indicator light (3-5).
3. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 2, which is characterized in that magnetic pole
Surface loss collector (3) further includes pulse processor (3-6) and display (3-7)；The magnetic pole surfaces of central processing unit (3-1)
Loss result output end is connected with the input terminal of pulse processor (3-6), the output end and display of pulse processor (3-6)
The idsplay order input terminal of (3-7) is connected.
4. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 3, which is characterized in that magnetic pole
Surface loss collector (3) is provided with BNC connector on m, and the conducting slip ring (5) of m temp-sensing element (1) passes through coaxial cable and m
A BNC connector connection.
5. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 3, which is characterized in that display
Device (3-7) uses charactron or liquid crystal display.
6. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 2, which is characterized in that temperature
Reader (3-4) is using the temperature reader based on Principles of Radar, and temperature reader (3-4) issues electromagnetism by antenna (4)
Scanning signal, ultrasonic heat detector (2) receive electromagnetic scanning signals by antenna, and the electromagnetic scanning signals are by ultrasonic heat detector
(2) the internal interdigital transducer being arranged is converted into the excusing from death wave of its internal work；Excusing from death wave is converted into electricity through interdigital transducer again
Magnetostatic wave signal returns to temperature reader (3-4) via antenna (4), obtains rotor pole surface temperature.
7. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 1 or 6, which is characterized in that
Ultrasonic heat detector (2) uses the ultrasonic sensor of model RFM3250-BFS.
8. according to claim 1, the magnetic pole surfaces loss measurement device of the 2 or 6 variable-ratio generator motors, feature exist
In antenna (4) uses 8dBi circular polarized antenna.
9. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 1, which is characterized in that upper
Machine (9) uses the industrial control computer of model IPC-710, and collector (3) are lost by cable and magnetic pole surfaces in host computer (9)
RJ-45 Ethernet interface is connected.
10. the magnetic pole surfaces loss measurement device of variable-ratio generator motor according to claim 2, which is characterized in that refer to
Show lamp (3-5) for display working condition, in effective collection process, indicator light (3-5) is highlighted, if any group or whole signals
Return to failure, indicator light (3-5) flashing；After acquisition signal success, indicator light (3-5) goes out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471096.2A CN110132442A (en) | 2019-05-31 | 2019-05-31 | The magnetic pole surfaces loss measurement device of variable-ratio generator motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471096.2A CN110132442A (en) | 2019-05-31 | 2019-05-31 | The magnetic pole surfaces loss measurement device of variable-ratio generator motor |
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| CN110132442A true CN110132442A (en) | 2019-08-16 |
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| CN201910471096.2A Pending CN110132442A (en) | 2019-05-31 | 2019-05-31 | The magnetic pole surfaces loss measurement device of variable-ratio generator motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514309A (en) * | 2019-09-06 | 2019-11-29 | 杭州纵联科技有限公司 | A kind of radio temperature sensor and the wireless temperature measuring device comprising the sensor |
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| CN106949982A (en) * | 2017-01-23 | 2017-07-14 | 长沙国通电力科技有限公司 | Generator amature wireless temperature measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514309A (en) * | 2019-09-06 | 2019-11-29 | 杭州纵联科技有限公司 | A kind of radio temperature sensor and the wireless temperature measuring device comprising the sensor |
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Application publication date: 20190816 |