CN202837506U - Direct driving testing device - Google Patents
Direct driving testing device Download PDFInfo
- Publication number
- CN202837506U CN202837506U CN 201220518867 CN201220518867U CN202837506U CN 202837506 U CN202837506 U CN 202837506U CN 201220518867 CN201220518867 CN 201220518867 CN 201220518867 U CN201220518867 U CN 201220518867U CN 202837506 U CN202837506 U CN 202837506U
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- Prior art keywords
- permanent
- magnet synchronous
- motor
- transducer
- test
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- Expired - Fee Related
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Abstract
The utility model discloses a direct driving testing device and relates to a testing device. The direct driving testing device comprises a permanent-magnet synchronous motor, a transducer and a coupling, wherein the permanent-magnet synchronous motor is connected to a synchronous transducer, the coupling, rotate speed torque sensor, the coupling and the motor are sequentially connected with the permanent-magnet synchronous motor. The direct drive method saves the deceleration mechanism, thereby decreases the vibration during the test procedure and noise and increases the precision of the test. To drive the permanent-magnet synchronous motor by the synchronous transducer, the transducer adopts most advanced direct torque control (DTC) method in the world to control the prime motor running torque, thereby the rotate speed driving precision is augmented to 0.1 rotation, the test precision is substantially augmented. The infinitely variable speeds and torque of the prime motor can be realized by the permanent-magnet synchronous motor driven by the synchronous transducer so that realizing high precision test of the different rated speed permanent-magnet synchronous motor or identical generator with different speed point.
Description
Technical field:
The utility model relates to proving installation.
Background technology:
Traditional acceleration and deceleration machine test mode adopts structure to be: asynchronous frequency changer+prime mover (Y-series threephase asynchronous)+shaft coupling+reductor+shaft coupling+tested motor (magneto alternator); Mode is that asynchronous frequency changer drives the Y-series threephase asynchronous, links by shaft coupling and reductor, connects tested motor and test after fixedly reduction gear ratio is slowed down.The shortcoming that traditional test exists is as follows: 1. reductor owing to adopt mechanical mate gear speed governing, so vibrations and noise are larger, affects the accuracy of test result in test process; 2. threephase asynchronous has the step-out phenomenon in the driving process, needs manually rotating speed to be proofreaied and correct, and measuring accuracy is poor; 3. because the precision of asynchronous driving is relatively poor, causes torque to record accurately and to calculate, and then make test can't obtain accurately efficiency data.
The utility model content:
The purpose of this utility model provides a kind of direct driving proving installation.
Directly drive proving installation, described direct driving proving installation comprises permasyn morot, frequency converter and shaft coupling, described permasyn morot is connected with synchronous frequency changer, and permasyn morot is connected with, shaft coupling, torque and speed sensors, shaft coupling and the motor of being connected successively.
Synchronous frequency changer can drive permasyn morot;
Use synchronous frequency changer, adopt Direct torque method for making driving prime mover (permasyn morot) to switch through fast torque sensor and link to each other with tested motor, directly drive test.
Beneficial effect:
1. directly drive test mode and saved reducing gear, the test process vibrations are little, and noise is little, and measuring accuracy is higher.
2. adopt synchronous frequency changer to drive permasyn morot, frequency converter adopts the state-of-the-art Direct torque method for making in the world (DTC) that prime mover is carried out torque control, and rotating speed driving precision can be increased to 0.1 and turn, and measuring accuracy is significantly improved.
3. drive permasyn morot by synchronous frequency changer, can realize electrodeless variable-speed, the bending moment of prime mover, can realize the high precision measurement of different rated speed magnetoes or identical generator different rotating speeds point.
4. employing torque and speed sensors, but the rotating speed of Real Time Monitoring generator and rotary speed data cooperate the electrodeless variable-speed characteristics of directly driving test, can obtain the moment of torsion of tested each rotating speed point of generator and the accurate data of efficient.
Description of drawings:
Fig. 1 directly drives the proving installation synoptic diagram
Embodiment:
Below in conjunction with accompanying drawing 1, further describe the utility model,
A kind of direct driving proving installation, described direct driving proving installation comprises permasyn morot 1, frequency converter 4 and shaft coupling 2, described permasyn morot is connected with synchronous frequency changer 4, and permasyn morot is connected with shaft coupling, torque and speed sensors 3, shaft coupling and the motor 5 of being connected successively.
Synchronous frequency changer can drive permasyn morot.
Claims (2)
1. one kind directly drives proving installation, and described direct driving proving installation comprises permasyn morot, frequency converter and shaft coupling, it is characterized in that described permasyn morot is connected with shaft coupling, torque and speed sensors, shaft coupling and the motor of being connected successively.
2. described a kind of direct driving proving installation according to claim 1, it is characterized in that: described permasyn morot is connected with synchronous frequency changer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518867 CN202837506U (en) | 2012-10-11 | 2012-10-11 | Direct driving testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518867 CN202837506U (en) | 2012-10-11 | 2012-10-11 | Direct driving testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837506U true CN202837506U (en) | 2013-03-27 |
Family
ID=47949182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220518867 Expired - Fee Related CN202837506U (en) | 2012-10-11 | 2012-10-11 | Direct driving testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792926A (en) * | 2014-02-18 | 2014-05-14 | 南京工业大学 | Multi-bus control system of common direct current bus electric closed test bed of gear case of coal cutter |
| CN107247232A (en) * | 2017-08-04 | 2017-10-13 | 浙江雅迪机车有限公司 | A kind of variable speed electric motors, particularly loads test equipment |
| CN109888985A (en) * | 2019-04-09 | 2019-06-14 | 日照东方电机有限公司 | A kind of small space low speed large torque moment permanent-magnet electric motor drive system |
-
2012
- 2012-10-11 CN CN 201220518867 patent/CN202837506U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792926A (en) * | 2014-02-18 | 2014-05-14 | 南京工业大学 | Multi-bus control system of common direct current bus electric closed test bed of gear case of coal cutter |
| CN107247232A (en) * | 2017-08-04 | 2017-10-13 | 浙江雅迪机车有限公司 | A kind of variable speed electric motors, particularly loads test equipment |
| CN107247232B (en) * | 2017-08-04 | 2024-01-09 | 浙江雅迪机车有限公司 | Variable speed motor loading test equipment |
| CN109888985A (en) * | 2019-04-09 | 2019-06-14 | 日照东方电机有限公司 | A kind of small space low speed large torque moment permanent-magnet electric motor drive system |
| CN109888985B (en) * | 2019-04-09 | 2024-03-12 | 日照东方电机有限公司 | Low-speed high-torque permanent magnet motor driving system for small space |
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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 |
Granted publication date: 20130327 Termination date: 20151011 |
|
| EXPY | Termination of patent right or utility model |