CN201837711U - Test system for load performance of electric motor - Google Patents
Test system for load performance of electric motor Download PDFInfo
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- CN201837711U CN201837711U CN2010205066619U CN201020506661U CN201837711U CN 201837711 U CN201837711 U CN 201837711U CN 2010205066619 U CN2010205066619 U CN 2010205066619U CN 201020506661 U CN201020506661 U CN 201020506661U CN 201837711 U CN201837711 U CN 201837711U
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Abstract
The utility model discloses a test system for the load performance of an electric motor, comprising a driving power supply, a tested electric motor, a coupling, a synchronous generator, a synchronous generator load and a test control unit. In the test system, a detecting winding is embedded and wound on a stator power winding of a synchronous generator, so that the input power, the rotating speed, the output power, the output torque and efficiency of the electric motor can be obtained by only testing the input voltage and the input current of the tested electric motor, the induced electromotive force and the induced electromotive force frequency of the detecting winding of the synchronous generator, and the output current of the stator power winding of the synchronous generator when in the practical test, further a rotating speed sensor and a torque sensor needed by the test system for the load performance of the traditional electric motor are eliminated, the test system is simplified, and the cost is lowered.
Description
Technical field
The utility model relates to the motor technical field of measurement and test, more particularly, relates to a kind of motor loading performance test macro.
Background technology
In scientific research and production practices, often need test motor, the pattern (being the motor generator pattern) that adopts the motor drives synchronous generator is one of form of motor loading performance test.
Existing motor loading performance test macro when rotating speed that detects motor and output torque, needs to rely on speed probe and torque sensor, thereby makes the test system structure complexity, and cost is higher.
The utility model content
In view of this, the utility model provides a kind of motor loading performance test macro, and to solve existing motor loading performance test system structure complexity and cost problem of higher, technical scheme is as follows:
A kind of motor loading performance test macro comprises: driving power, tested motor, shaft coupling, synchronous generator, synchronous generator load and measurement and control unit; Wherein:
Described driving power drives tested motor work;
Described tested motor drives the synchronous generator generating by shaft coupling;
Described synchronous generator is to the synchronous generator electric, and have on its stator with stator power winding follow embedding around the detection winding;
Load links to each other described measurement and control unit with synchronous generator with driving power, tested motor, synchronous generator respectively, the induction electromotive force and the induction electromotive force frequency of input voltage by detecting tested motor and input current, synchronous generator machine testing winding, and the output current of synchronous generator stator power winding, obtain power input, rotating speed, output power, output torque and the motor efficiency of tested motor.
Preferably, in the said system, described measurement and control unit comprises:
The input power measurement unit is used to detect the input voltage and the input current of tested motor, calculates the power input of tested motor;
The tachometric survey unit, be used to detect the induction electromotive force frequency of synchronous generator machine testing winding, obtain the induction electromotive force frequency of synchronous generator stator power winding, and calculate the rotating speed of tested motor according to the magnetic pole logarithm of this induction electromotive force frequency and synchronous generator;
The output power measurement unit, be used to detect the induction electromotive force of synchronous generator machine testing winding, obtain the induction electromotive force of synchronous generator stator power winding, detect the output current of synchronous generator stator power winding, output current according to synchronous generator stator power winding induction electromotive force that records and synchronous generator stator power winding, calculate the input electromagnetic power of synchronous generator, ignore the synchronous generator frictional dissipation, the input electromagnetic power of synchronous generator is approximately the output power of tested motor;
Output torque measurement unit is used for the tested motor speed that records according to the tachometric survey unit, and the tested output power of motor that records of output power measurement unit, calculates the output torque of tested motor;
The efficiency measurement unit is used for the tested motor input power that records according to the input power measurement unit, and the tested output power of motor that records of output power measurement unit, calculates the efficient of tested motor.
By above technical scheme as can be seen, the utility model is by following embedding around detecting winding on the stator power winding of synchronous generator, during actual the test, only need by detecting the input voltage and the input current of tested motor, the induction electromotive force of synchronous generator machine testing winding and induction electromotive force frequency, and the output current of synchronous generator stator power winding, just can obtain the power input of tested motor, rotating speed, output power, output torque and motor efficiency, thereby traditional necessary speed probe of motor loading performance test macro and torque sensor have been saved, simplify test macro, reduced cost.
Description of drawings
In order to be illustrated more clearly in the technical solution of the utility model, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of motor loading performance test system structure synoptic diagram that Fig. 1 provides for the utility model embodiment;
The structural representation of the measurement and control unit that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to shown in Figure 1, a kind of motor loading performance test macro of the utility model embodiment can comprise:
Driving power 101, tested motor 102, shaft coupling 103, synchronous generator 104, synchronous generator load 105 and measurement and control unit 106.
Wherein, driving power 101 drives tested motor 102 work.
Tested motor 102 drives synchronous generator 104 generatings by shaft coupling 103.
Synchronous generator 104 is to synchronous generator load 105 power supply, and have on its stator with stator power winding follow embedding around the detection winding.
Measurement and control unit 106 links to each other with driving power 101, tested motor 102, synchronous generator 104 and synchronous generator load 105 respectively, input voltage by detecting tested motor 102 and input current, synchronous generator 104 detect the induction electromotive force and the induction electromotive force frequency of windings, and the output current of synchronous generator 104 stator power windings, obtain power input, rotating speed, output power, output torque and the motor efficiency of tested motor 102.
In the utility model test macro, synchronous alternating-current generator 104 has the detection winding, and the stator power winding that detects winding and synchronous generator 104 in stator, follow embedding around, it is identical with the magnetic flux of stator power winding promptly to detect winding, therefore the induction electromotive force ratio that detects winding and stator winding equals to detect the number of turn ratio of winding and stator power winding, measurement and control unit 106 just can obtain the induction electromotive force and the induction electromotive force frequency of stator power winding by detecting induction electromotive force and the induction electromotive force frequency that synchronous alternating-current generator 104 detects winding so.
During actual the test, measurement and control unit 106 is by detecting the output current of synchronous generator 104 stator power windings, and according to the induction electromotive force of the synchronous generator 104 stator power windings that record, obtain the input electromagnetic power of synchronous alternating-current generator 104, ignore the synchronous generator frictional dissipation, the input electromagnetic power of synchronous generator 104 is approximately the output power of tested motor 102; Measurement and control unit 106 is by the frequency of synchronous generator 104 induction electromotive forces that record, and according to the number of pole-pairs of synchronous generator 104, obtains the rotating speed of tested motor 102; Measurement and control unit 106 obtains the output torque of tested motor 102 by the output power and the rotating speed of the tested motor 102 that records; Measurement and control unit 106 obtains the power input of tested motor 102 by the input voltage and the input current of the tested motor 102 that records; Measurement and control unit 106 obtains the efficient of tested motor 102 by the power input and the output power of the tested motor 102 that records.
From the foregoing description as can be seen, the utility model follows embedding to detect winding around one by giving on the stator power winding of synchronous alternating-current generator, during actual the test, only need by detecting the input voltage and the input current of tested motor, the induction electromotive force of synchronous generator machine testing winding and induction electromotive force frequency, and the output current of synchronous generator stator power winding, just can obtain the power input of tested motor, rotating speed, output power, output torque and motor efficiency, thereby traditional necessary speed probe of motor loading performance test macro and torque sensor have been saved, simplify test macro, reduced cost.
In other embodiments, as shown in Figure 2, the measurement and control unit 106 that the utility model embodiment provides can comprise:
Input power measurement unit 106a is used to detect the input voltage and the input current of tested motor 102, calculates the power input of tested motor 102;
Output power measurement unit 106c, be used to detect the induction electromotive force that synchronous generator 104 detects winding, obtain the induction electromotive force of synchronous generator 104 stator power windings, detect the output current of synchronous generator 104 stator power windings, according to the synchronous generator 104 stator power winding induction electromotive forces that record and the output current of synchronous generator 104 stator power windings, calculate the input electromagnetic power of synchronous generator 104, ignore the frictional dissipation of synchronous generator 104, the input electromagnetic power of synchronous generator 104 is approximately the output power of tested motor 102;
Output torque measurement unit 106d is used for tested motor 102 rotating speeds that record according to tachometric survey unit 106b, and tested motor 102 output powers that record of output power measurement unit 106c, calculates the output torque of tested motor 102.
Motor efficiency measuring unit 106e, be used for tested motor 102 power inputs that record according to input power measurement unit 106a, and tested motor 102 output powers that record of output power measurement unit 106c, calculate the efficient of tested motor 102.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (2)
1. a motor loading performance test macro is characterized in that, comprising: driving power, tested motor, shaft coupling, synchronous generator, synchronous generator load and measurement and control unit; Wherein:
Described driving power drives tested motor work;
Described tested motor drives the synchronous generator generating by shaft coupling;
Described synchronous generator is to the synchronous generator electric, and have on its stator with stator power winding follow embedding around the detection winding;
Load links to each other described measurement and control unit with synchronous generator with driving power, tested motor, synchronous generator respectively, the induction electromotive force and the induction electromotive force frequency of input voltage by detecting tested motor and input current, synchronous generator machine testing winding, and the output current of synchronous generator stator power winding, obtain power input, rotating speed, output power, output torque and the motor efficiency of tested motor.
2. system according to claim 1 is characterized in that, described measurement and control unit comprises:
The input power measurement unit is used to detect the input voltage and the input current of tested motor, calculates the power input of tested motor;
The tachometric survey unit, be used to detect the induction electromotive force frequency of synchronous generator machine testing winding, obtain the induction electromotive force frequency of synchronous generator stator power winding, and calculate the rotating speed of tested motor according to the magnetic pole logarithm of this induction electromotive force frequency and synchronous generator;
The output power measurement unit, be used to detect the induction electromotive force of synchronous generator machine testing winding, obtain the induction electromotive force of synchronous generator stator power winding, detect the output current of synchronous generator stator power winding, output current according to synchronous generator stator power winding induction electromotive force that records and synchronous generator stator power winding, calculate the input electromagnetic power of synchronous generator, ignore the synchronous generator frictional dissipation, the input electromagnetic power of synchronous alternating-current generator is approximately the output power of tested motor;
Output torque measurement unit is used for the tested motor speed that records according to the tachometric survey unit, and the tested output power of motor that records of output power measurement unit, calculates the output torque of tested motor;
The efficiency measurement unit is used for the tested motor input power that records according to the input power measurement unit, and the tested output power of motor that records of output power measurement unit, calculates the efficient of tested motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205066619U CN201837711U (en) | 2010-08-24 | 2010-08-24 | Test system for load performance of electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205066619U CN201837711U (en) | 2010-08-24 | 2010-08-24 | Test system for load performance of electric motor |
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| CN201837711U true CN201837711U (en) | 2011-05-18 |
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| CN2010205066619U Expired - Lifetime CN201837711U (en) | 2010-08-24 | 2010-08-24 | Test system for load performance of electric motor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975923A (en) * | 2010-08-24 | 2011-02-16 | 上海奥波电子有限公司 | System for testing loading performance of motor |
| CN103197244A (en) * | 2013-03-26 | 2013-07-10 | 广州飞机维修工程有限公司 | General testing system of airplane direct-current generator |
| CN103235259A (en) * | 2013-04-11 | 2013-08-07 | 上海电机系统节能工程技术研究中心有限公司 | Experimental dynamic loading device for variable frequency motors and stimulating method |
| CN104007385A (en) * | 2013-12-21 | 2014-08-27 | 柳州科尔数字化制造技术有限公司 | Motor test bench |
| CN104062586A (en) * | 2014-07-03 | 2014-09-24 | 广州电力机车有限公司 | Method employing test bench to check driving motor |
| CN104950257A (en) * | 2015-06-29 | 2015-09-30 | 吉林大学 | Test system and test method for open-end winding permanent magnet synchronous motor |
| CN105700460A (en) * | 2016-04-27 | 2016-06-22 | 杭州戈虎达科技有限公司 | Monitoring device for motor operation efficiency under complex conditions and method thereof |
| CN106680709A (en) * | 2015-11-05 | 2017-05-17 | 重庆金美通信有限责任公司 | Simple motor endurance load simulation device capable of being used for environment test |
| CN106772026A (en) * | 2015-11-20 | 2017-05-31 | 重庆金美通信有限责任公司 | It is a kind of to can be used for the motor dynamics load simulating device of environmental test |
| CN109541459A (en) * | 2019-02-20 | 2019-03-29 | 中船重工电机科技股份有限公司 | A kind of generator electromagnetic compatibility test method |
-
2010
- 2010-08-24 CN CN2010205066619U patent/CN201837711U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975923A (en) * | 2010-08-24 | 2011-02-16 | 上海奥波电子有限公司 | System for testing loading performance of motor |
| CN103197244A (en) * | 2013-03-26 | 2013-07-10 | 广州飞机维修工程有限公司 | General testing system of airplane direct-current generator |
| CN103235259B (en) * | 2013-04-11 | 2016-04-06 | 上海电机系统节能工程技术研究中心有限公司 | A kind of variable-frequency motor test dynamic load device and analogy method |
| CN103235259A (en) * | 2013-04-11 | 2013-08-07 | 上海电机系统节能工程技术研究中心有限公司 | Experimental dynamic loading device for variable frequency motors and stimulating method |
| CN104007385A (en) * | 2013-12-21 | 2014-08-27 | 柳州科尔数字化制造技术有限公司 | Motor test bench |
| CN104062586A (en) * | 2014-07-03 | 2014-09-24 | 广州电力机车有限公司 | Method employing test bench to check driving motor |
| CN104062586B (en) * | 2014-07-03 | 2017-04-12 | 广州电力机车有限公司 | Method employing test bench to check driving motor |
| CN104950257A (en) * | 2015-06-29 | 2015-09-30 | 吉林大学 | Test system and test method for open-end winding permanent magnet synchronous motor |
| CN104950257B (en) * | 2015-06-29 | 2017-07-14 | 吉林大学 | Open winding permanent magnet synchronous motor test system and method for testing |
| CN106680709A (en) * | 2015-11-05 | 2017-05-17 | 重庆金美通信有限责任公司 | Simple motor endurance load simulation device capable of being used for environment test |
| CN106772026A (en) * | 2015-11-20 | 2017-05-31 | 重庆金美通信有限责任公司 | It is a kind of to can be used for the motor dynamics load simulating device of environmental test |
| CN105700460A (en) * | 2016-04-27 | 2016-06-22 | 杭州戈虎达科技有限公司 | Monitoring device for motor operation efficiency under complex conditions and method thereof |
| CN109541459A (en) * | 2019-02-20 | 2019-03-29 | 中船重工电机科技股份有限公司 | A kind of generator electromagnetic compatibility test method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110518 Effective date of abandoning: 20130703 |
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| RGAV | Abandon patent right to avoid regrant |