CN203083726U - Temperature real-time detection apparatus for permanent magnet of permanent magnet synchronous motor - Google Patents
Temperature real-time detection apparatus for permanent magnet of permanent magnet synchronous motor Download PDFInfo
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- CN203083726U CN203083726U CN 201220717113 CN201220717113U CN203083726U CN 203083726 U CN203083726 U CN 203083726U CN 201220717113 CN201220717113 CN 201220717113 CN 201220717113 U CN201220717113 U CN 201220717113U CN 203083726 U CN203083726 U CN 203083726U
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- temperature
- permanent magnet
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Abstract
The utility model discloses a temperature real-time detection apparatus for the permanent magnets of a permanent magnet synchronous motor, wherein a dynamometer and a detected motor are respectively arranged on a testboard rack, the rotating shafts of the dynamometer and the detected motor are connected through a shaft coupling, a torque/rotating speed sensor is arranged on the rotating shaft of the dynamometer, the rotating shaft of the detected motor is a hollow shaft, a high speed slip ring is connected to the rotating shaft of the detected motor through a flange, several temperature sensors are respectively arranged on the permanent magnets in several magnetic pole grooves of the rotor of the detected motor, the leads of several temperature sensors penetrate into the through hole of the hollow shaft from the rotor of the motor and are connected to the rotor of the high speed slip ring, the rotor of the high speed slip ring transmits temperature measurement signals to the stator of the high speed slip ring, the stator of the high speed slip ring is connected to a controller through several leads, and the controller controls the dynamometer to drag the detected motor to generate a set moment according to the signal of the torque/rotating speed sensor. According to the temperature real-time detection apparatus for the permanent magnets of the permanent magnet synchronous motor, real time temperature monitor on the permanent magnets of the motor is achieved, motor failure caused by too high temperature rise of the motor is prevented, and normal and reliable operation of the motor are guaranteed.
Description
Technical field
The utility model relates to a kind of real-time detection apparatus of permanent-magnetism synchronous motor permanent magnetic body temperature degree.
Background technology
For permagnetic synchronous motor, the temperature rise of motor is very crucial parameter.But the temperature detection that the detection means of present electric machine temperature rise mainly relies on stator winding realizes.Concerning permagnetic synchronous motor, owing to adopted permanent magnet material, the power density of system is bigger, and it is because the temperature rise of rotor causes greatly that the inefficacy that electric machine temperature rise causes has simultaneously.Rotor permanent magnet demagnetization easily at high temperature simultaneously is so the temperature rise of monitoring rotor permanent magnet seems very crucial.Detection to rotor permanent magnet temperature, estimate by indirect mode mostly at present, depend critically upon motor model, and also there is bigger difficulty in verification of model, thereby can't directly implement real-time detection, thereby influence the normal reliable operation of motor to the temperature rise of rotor permanent magnet.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of real-time detection apparatus of permanent-magnetism synchronous motor permanent magnetic body temperature degree, utilize this pick-up unit can detect permanent-magnetism synchronous motor permanent magnetic body temperature degree in real time, can monitor in real time the permanent magnet temperature, avoid the too high motor that causes of electric machine temperature rise to lose efficacy, guaranteed the operation of motor normal reliable.
For solving the problems of the technologies described above, the real-time detection apparatus of the utility model permanent-magnetism synchronous motor permanent magnetic body temperature degree comprises testboard bay, dynamometer machine, by measured motor, moment of torsion/speed probe, controller, high-speed slip rings and some temperature sensors, described dynamometer machine and be located at described testboard bay respectively by measured motor, described dynamometer machine be connected by shaft coupling by the rotating shaft of measured motor, described moment of torsion/speed probe is located at described dynamometer machine rotating shaft, described tested machine shaft is that tubular shaft and axial wall are provided with through hole, described high-speed slip rings connects described machine shaft by ring flange, described some temperature sensors are located at respectively on the permanent magnet in some magnetic pole grooves of tested rotor, the lead of described some temperature sensors penetrates described machine shaft through hole and is positioned at described rotating shaft by measured motor from rotor and is connected to described high-speed slip rings rotor, described high-speed slip rings rotor transfers to described high-speed slip rings stator with the temperature measurement signal of described some temperature sensors, described high-speed slip rings stator connects described controller by some leads, described controller according to described moment of torsion/signals of rotational speed sensor control dynamometer machine drag described by measured motor to setting moment.
Further, above-mentioned some temperature sensors be positioned over the some magnetic pole grooves of rotor in the magnetic bridge space and be close to permanent magnet.
Because the real-time detection apparatus of the utility model permanent-magnetism synchronous motor permanent magnetic body temperature degree has adopted technique scheme, be this device dynamometer machine and be located at testboard bay respectively by measured motor, dynamometer machine is connected by shaft coupling with tested machine shaft, moment of torsion/speed probe is located at the dynamometer machine rotating shaft, tested machine shaft is a tubular shaft, high-speed slip rings connects tested machine shaft by ring flange, some temperature sensors are located at respectively on the permanent magnet in some magnetic pole grooves of tested rotor, the lead of some temperature sensors penetrates described tubular shaft through hole and is connected to the high-speed slip rings rotor from rotor, the high-speed slip rings rotor transfers to the high-speed slip rings stator with the temperature measurement signal of some temperature sensors, the high-speed slip rings stator is by some wire connection controllers, and controller drags by measured motor to setting moment according to moment of torsion/signals of rotational speed sensor control dynamometer machine.This pick-up unit can detect permanent-magnetism synchronous motor permanent magnetic body temperature degree in real time, can monitor in real time the permanent magnet temperature, avoids the too high motor that causes of electric machine temperature rise to lose efficacy, and has guaranteed the operation of motor normal reliable.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the real-time detection apparatus synoptic diagram of the utility model permanent-magnetism synchronous motor permanent magnetic body temperature degree;
Fig. 2 is the connection diagram of this pick-up unit high speed slip ring and machine shaft;
Fig. 3 is some temperature sensor placement location synoptic diagram in this device;
Fig. 4 is the processing block diagram of this pick-up unit middle controller to some temperature sensor temperature measurement signals.
Embodiment
As depicted in figs. 1 and 2, the real-time detection apparatus of the utility model permanent-magnetism synchronous motor permanent magnetic body temperature degree comprises testboard bay 1, dynamometer machine 2, by measured motor 3, moment of torsion/speed probe 5, controller 6, high-speed slip rings and some temperature sensors, described dynamometer machine 2 and be located at described testboard bay 1 respectively by measured motor 3, described dynamometer machine 2 and by the rotating shaft 21 of measured motor 3,31 by shaft coupling 4 connections, described moment of torsion/speed probe 5 is located at described dynamometer machine 2 rotating shafts 21, described is that tubular shaft and axial wall are provided with through hole 32 by measured motor 3 rotating shafts 31, described high-speed slip rings 7 connects described machine shaft 31 by ring flange 71, described some temperature sensors are located at respectively by on the permanent magnet in some magnetic pole grooves of measured motor 3 rotors, the lead 9 of described some temperature sensors penetrates described machine shaft through hole 32 and is positioned at described rotating shaft 31 by measured motor 3 from rotor 33 and is connected to described high-speed slip rings rotor 72, described high-speed slip rings rotor 72 transfers to described high-speed slip rings stator 73 with the temperature measurement signal of described some temperature sensors, described high-speed slip rings stator 73 connects described controller 6 by some leads 91, described controller 6 according to described moment of torsion/speed probe 5 signal controlling dynamometer machines 2 drag described by measured motor 3 to setting moment.
Further, as shown in Figure 3, above-mentioned some temperature sensors 92 be positioned over the some magnetic pole grooves of rotor in magnetic bridge 35 spaces and be close to permanent magnet 34.Embed some permanent magnets 34 in the iron core 33 of rotor, permanent magnet 34 two ends are every magnetic bridge 35, every magnetic bridge 35 positions a bigger space is being arranged, can make things convenient for laying temperature sensor 92 in this position, and temperature sensor 92 leads can be from passing every magnetic bridge 35 spaces, thereby accomplish not destroy the punching structure of permanent-magnetic synchronous motor rotor.
This pick-up unit is by being drawn the paramount ski-running rotor of some temperature sensor lead by the tubular shaft of measured motor, the high-speed slip rings rotor transfers to the high-speed slip rings stator with temperature measurement signal, the high-speed slip rings stator passes through wire connection controller, thereby the permanent magnet temperature signal of motor rotating rotor can be transferred to controller, realize the real-time detection of permanent magnet temperature.As shown in Figure 4, controller can conveniently be implemented the temperature signal of accepting is handled, at first temperature signal is sampled by sampling period regular hour, signal to sampling carries out filtering then, signal carries out A/D and converts digital signal to after the filtering, after digital signal carried out eight average filters, can obtain the observed temperature of motor permanent magnet.
Utilize this device to detect the permanent magnet temperature of rotor in real time, avoid the demagnetization of motor permanent magnet high temperature and the inefficacy of motor, thereby guarantee the reliable and stable operation of permagnetic synchronous motor.
Claims (2)
1. the real-time detection apparatus of a permanent-magnetism synchronous motor permanent magnetic body temperature degree, it is characterized in that: this device comprises testboard bay, dynamometer machine, by measured motor, moment of torsion/speed probe, controller, high-speed slip rings and some temperature sensors, described dynamometer machine and be located at described testboard bay respectively by measured motor, described dynamometer machine be connected by shaft coupling by the rotating shaft of measured motor, described moment of torsion/speed probe is located at described dynamometer machine rotating shaft, described tested machine shaft is that tubular shaft and axial wall are provided with through hole, described high-speed slip rings connects described machine shaft by ring flange, described some temperature sensors are located at respectively on the permanent magnet in some magnetic pole grooves of tested rotor, the lead of described some temperature sensors penetrates described machine shaft through hole and is positioned at described rotating shaft by measured motor from rotor and is connected to described high-speed slip rings rotor, described high-speed slip rings rotor transfers to described high-speed slip rings stator with the temperature measurement signal of described some temperature sensors, described high-speed slip rings stator connects described controller by some leads, described controller according to described moment of torsion/signals of rotational speed sensor control dynamometer machine drag described by measured motor to setting moment.
2. the real-time detection apparatus of permanent-magnetism synchronous motor permanent magnetic body temperature degree according to claim 1 is characterized in that: described some temperature sensors be positioned over the some magnetic pole grooves of rotor in the magnetic bridge space and be close to permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717113 CN203083726U (en) | 2012-12-24 | 2012-12-24 | Temperature real-time detection apparatus for permanent magnet of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717113 CN203083726U (en) | 2012-12-24 | 2012-12-24 | Temperature real-time detection apparatus for permanent magnet of permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083726U true CN203083726U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717113 Expired - Fee Related CN203083726U (en) | 2012-12-24 | 2012-12-24 | Temperature real-time detection apparatus for permanent magnet of permanent magnet synchronous motor |
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| CN (1) | CN203083726U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104714052A (en) * | 2013-12-12 | 2015-06-17 | 哈尔滨飞机工业集团有限责任公司 | Special sensor tester for helicopter field |
| CN104748879A (en) * | 2013-12-30 | 2015-07-01 | 北京南口轨道交通机械有限责任公司 | Magnetic pole temperature measuring device of classificator |
| CN104776939A (en) * | 2015-03-31 | 2015-07-15 | 浙江大学 | Hollow coaxial mutual-driving motor test bed for real-time measurement of motor rotor temperature rises |
| CN105897514A (en) * | 2016-06-08 | 2016-08-24 | 大唐（通辽）霍林河新能源有限公司 | Dynamic loading platform for communication sliding ring of wind generating set |
| CN113676000A (en) * | 2021-07-15 | 2021-11-19 | 东风电驱动系统有限公司 | Permanent magnet synchronous motor rotor temperature detection device |
| CN113757018A (en) * | 2021-08-27 | 2021-12-07 | 湖南道依茨动力有限公司 | Starter, vehicle, and control method of vehicle |
| CN114754886A (en) * | 2022-06-16 | 2022-07-15 | 苏州英特模汽车科技有限公司 | Temperature measuring device and method of rotating part testing system |
-
2012
- 2012-12-24 CN CN 201220717113 patent/CN203083726U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104714052A (en) * | 2013-12-12 | 2015-06-17 | 哈尔滨飞机工业集团有限责任公司 | Special sensor tester for helicopter field |
| CN104748879A (en) * | 2013-12-30 | 2015-07-01 | 北京南口轨道交通机械有限责任公司 | Magnetic pole temperature measuring device of classificator |
| CN104776939A (en) * | 2015-03-31 | 2015-07-15 | 浙江大学 | Hollow coaxial mutual-driving motor test bed for real-time measurement of motor rotor temperature rises |
| CN105897514A (en) * | 2016-06-08 | 2016-08-24 | 大唐（通辽）霍林河新能源有限公司 | Dynamic loading platform for communication sliding ring of wind generating set |
| CN105897514B (en) * | 2016-06-08 | 2023-07-11 | 大唐（通辽）霍林河新能源有限公司 | Dynamic loading platform for communication slip ring of wind generating set |
| CN113676000A (en) * | 2021-07-15 | 2021-11-19 | 东风电驱动系统有限公司 | Permanent magnet synchronous motor rotor temperature detection device |
| CN113757018A (en) * | 2021-08-27 | 2021-12-07 | 湖南道依茨动力有限公司 | Starter, vehicle, and control method of vehicle |
| CN114754886A (en) * | 2022-06-16 | 2022-07-15 | 苏州英特模汽车科技有限公司 | Temperature measuring device and method of rotating part testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20181224 |