CN212781137U - Permanent magnet motor loading test device - Google Patents
Permanent magnet motor loading test device Download PDFInfo
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- CN212781137U CN212781137U CN202021860904.9U CN202021860904U CN212781137U CN 212781137 U CN212781137 U CN 212781137U CN 202021860904 U CN202021860904 U CN 202021860904U CN 212781137 U CN212781137 U CN 212781137U
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- frequency converter
- motor
- transformer
- permanent magnet
- loading test
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Abstract
The utility model relates to a permanent magnet motor loading test device, which belongs to the technical field of permanent magnet motor loading test devices; the technical problem to be solved is as follows: the permanent magnet motor loading test device is high in function integration level and low in manufacturing cost; the technical scheme for solving the technical problem is as follows: the power supply comprises a power grid power supply, a transformer, a voltage regulator and a control cabinet, wherein the output end of the power grid power supply is connected with the input end of the transformer, and the output end of the transformer is respectively connected with the input ends of a first frequency converter and a second frequency converter through the voltage regulator; the output end of the first frequency converter is connected with a load motor, the output end of the second frequency converter is connected with a tested motor, and the load motor is connected with the tested motor through a torque and rotation speed sensor; the control cabinet is internally provided with a controller which is respectively connected with the signal output ends of the first frequency converter, the second frequency converter, the load motor, the tested motor and the torque and rotation speed sensor through leads; the utility model discloses be applied to test permanent-magnet machine.
Description
Technical Field
The utility model relates to a permanent-magnet machine load test device belongs to permanent-magnet machine load test technical field.
Background
The permanent magnet motor type test is the key work for testing the performance of the permanent magnet motor, and the permanent magnet motor test platform adopted by most manufacturers at present is roughly divided into two types: the test platform is used by the manufacturer with less annual output of the permanent magnet motor, the test system is simple, the test precision is not high, most test data are recorded manually, and the work of later data arrangement and data analysis is complicated and is easy to make mistakes; for the above two kinds of testing devices, it is necessary to improve the structure and function of the existing permanent magnet motor testing device, so that the purpose of saving cost can be achieved, and the requirements of energy conservation, intellectualization and integration can be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome not enough that exists among the prior art, the technical problem that will solve is: the permanent magnet motor loading test device is high in function integration level and low in manufacturing cost.
In order to solve the technical problem, the utility model discloses a technical scheme be: a permanent magnet motor loading test device comprises a power grid power supply, a transformer, a voltage regulator and a control cabinet, wherein the output end of the power grid power supply is connected with the input end of the transformer, and the output end of the transformer is respectively connected with the input ends of a first frequency converter and a second frequency converter through the voltage regulator;
the output end of the first frequency converter is connected with a load motor, the output end of the second frequency converter is connected with a tested motor, and the load motor is connected with the tested motor through a torque and rotation speed sensor;
and a controller is arranged in the control cabinet and is respectively connected with the signal output ends of the first frequency converter, the second frequency converter, the load motor, the tested motor and the torque and rotation speed sensor through leads.
And circuit breakers are also arranged between the power grid power supply and the transformer and between the transformer and the voltage regulator.
The power transmission specification of the power grid power supply is 10KV, the power transmission voltage is reduced to 380V after passing through a transformer, then 0-3300V voltage can be output through a voltage regulator, the voltage regulator is used for supplying power to the second frequency converter, and the working parameters of the tested motor with the voltage level between 380V and 3300V can be tested.
And the communication module of the control cabinet is also connected with an upper computer through a communication bus.
And the tested motor is also provided with a current transformer and a power analyzer.
The utility model discloses beneficial effect for prior art possesses does: the utility model provides a permanent magnet motor test system has reasonable layout, capability of testing multiple performance parameters of the permanent magnet motor, small floor area of the whole test system and low manufacturing and using cost; whole test system platform has integrateed functions such as data arrangement, data analysis on the reliability and the accuracy basis of guaranteeing test data, reduces subsequent work of tester, has improved work efficiency, the utility model has the advantages of test range is wide, has covered the test to different voltage classes, different motor power simultaneously, possesses full power cover, the advantage of many voltage compatibility tests.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic diagram of the circuit structure of the present invention;
in the figure: the system comprises a power grid power supply 1, a transformer 2, a voltage regulator 3, a first frequency converter 4, a second frequency converter 5, a load motor 6, a tested motor 7 and a torque and rotation speed sensor 8.
Detailed Description
As shown in fig. 1, the utility model relates to a permanent magnet motor load test testing device, including electric wire netting power (1), transformer (2), voltage regulator (3) and switch board, the output of electric wire netting power (1) links to each other with the input of transformer (2), the output of transformer (2) passes through voltage regulator (3) and links to each other with the input of first converter (4), second converter (5) respectively;
the output end of the first frequency converter (4) is connected with a load motor (6), the output end of the second frequency converter (5) is connected with a tested motor (7), and the load motor (6) is connected with the tested motor (7) through a torque and rotating speed sensor (8);
the control cabinet is internally provided with a controller, and the controller is respectively connected with the signal output ends of the first frequency converter (4), the second frequency converter (5), the load motor (6), the tested motor (7) and the torque and rotation speed sensor (8) through leads.
And circuit breakers are also arranged between the power grid power supply (1) and the transformer (2) and between the transformer (2) and the voltage regulator (3).
The power transmission specification of the power grid power supply (1) is 10KV, the power transmission voltage is reduced to 380V through the transformer (2), then 0-3300V voltage can be output through the voltage regulator (3) and used for supplying power to the second frequency converter (5), and the working parameters of the tested motor (7) with the voltage level between 380V and 3300V can be tested.
And the communication module of the control cabinet is also connected with an upper computer through a communication bus.
And the tested motor (7) is also provided with a current transformer and a power analyzer.
The utility model provides a permanent-magnet machine loading test testing arrangement specifically is a big moment of torsion permanent-magnet machine loading test platform of low-speed, mainly used accomplishes 150 types of permanent-magnet synchronous motor new product pattern of 1300KW specification experimental and product delivery test, and this test platform possesses obvious economize on electricity effect based on the direct feedback system of energy, guarantees test system's precision, and this test system has that the system composition is simple, integrate, intelligent, system layout is reasonable, area is little, save advantages such as cost.
The utility model discloses when the installation, fall into 380V with extranet 10KV electric wire netting through the transformer, then through the outputable 0-3300V voltage of voltage regulator, give the test converter power supply, can test 380V to the motor of 3300V any voltage level, load motor passes through the torque rotation speed sensor appearance with the permanent-magnet machine that is surveyed and is connected.
The loading frequency converter adopts a parallel operation feedback working mode, the frequency converter selects and determines the starting number of the frequency converter according to the power gear, the frequency converter is additionally provided with a four-quadrant frequency converter for feedback on the basis of parallel operation feedback, the frequency converter is provided with an internal circulation cooling system, and an axial flow fan is additionally arranged on the heat dissipation cabinet top of the frequency converter and used for heat dissipation of heating elements such as a reactor and the like.
The control part of the test platform mainly comprises a PLC control cabinet and a distributed acquisition cabinet, wherein a main PLC control cabinet adopts Siemens S7-300 series PLC and is placed in a frequency converter control room, and mainly acquires working parameters of an incoming line cabinet, an outgoing line cabinet, a frequency converter cabinet and the like, and simultaneously can exchange data with a frequency converter, and all working data of the frequency converter are acquired and fed back to a PLC controller for corresponding parameter setting and debugging; the distributed acquisition cabinet is placed on the site by adopting a Siemens ET200S expansion module and is mainly used for acquiring parameters such as motor temperature, a torque meter, rotating speed, inlet and outlet water temperature, inlet and outlet water pressure, water flow and the like.
The platform is additionally provided with an upper computer system, two industrial personal computers are arranged in an operation room, one industrial personal computer is used, the other industrial personal computer is standby, force control configuration software is arranged in the upper computer, and pictures can display information such as equipment alarm, motor loading trend graphs, various protection tests and experimental data acquisition, so that the requirement of obtaining data in permanent magnet motor loading tests is met.
The utility model discloses the later stage still can be according to corresponding sensor or detecting instrument of detection project demand increase and decrease, if set up auxiliary measurement systems such as direct current resistance measurement, insulation resistance measurement, power frequency withstand voltage measurement, noise measurement, motor turn-to-turn withstand voltage test in detection device in addition, these systems are provided with corresponding communication interface, all can carry out data transmission with controller and host computer connection.
About the utility model discloses what the concrete structure need explain, the utility model discloses a each part module connection relation each other is definite, realizable, except that the special explanation in the embodiment, its specific connection relation can bring corresponding technological effect to based on do not rely on under the prerequisite of corresponding software program execution, solve the utility model provides a technical problem, the utility model provides a model, the connection mode of parts, module, specific components and parts that appear all belong to the prior art such as the published patent that technical staff can acquire before the application day, published journal paper, or common general knowledge, need not to describe in detail for the technical scheme that the present case provided is clear, complete, realizable, and can be according to this technical means or obtain corresponding entity product.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a permanent-magnet machine loading test testing arrangement, includes electric wire netting power (1), transformer (2), voltage regulator (3) and switch board, its characterized in that: the output end of the power grid power supply (1) is connected with the input end of a transformer (2), and the output end of the transformer (2) is respectively connected with the input ends of a first frequency converter (4) and a second frequency converter (5) through a voltage regulator (3);
the output end of the first frequency converter (4) is connected with a load motor (6), the output end of the second frequency converter (5) is connected with a tested motor (7), and the load motor (6) is connected with the tested motor (7) through a torque and rotating speed sensor (8);
the control cabinet is internally provided with a controller, and the controller is respectively connected with the signal output ends of the first frequency converter (4), the second frequency converter (5), the load motor (6), the tested motor (7) and the torque and rotation speed sensor (8) through leads.
2. The permanent magnet motor loading test device according to claim 1, characterized in that: and circuit breakers are also arranged between the power grid power supply (1) and the transformer (2) and between the transformer (2) and the voltage regulator (3).
3. The permanent magnet motor loading test device according to claim 2, characterized in that: the power transmission specification of the power grid power supply (1) is 10KV, the power transmission voltage is reduced to 380V through the transformer (2), then 0-3300V voltage can be output through the voltage regulator (3) and used for supplying power to the second frequency converter (5), and the working parameters of the tested motor (7) with the voltage level between 380V and 3300V can be tested.
4. The permanent magnet motor loading test device according to claim 3, characterized in that: and the communication module of the control cabinet is also connected with an upper computer through a communication bus.
5. The permanent magnet motor loading test device according to claim 4, characterized in that: and the tested motor (7) is also provided with a current transformer and a power analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021860904.9U CN212781137U (en) | 2020-08-31 | 2020-08-31 | Permanent magnet motor loading test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021860904.9U CN212781137U (en) | 2020-08-31 | 2020-08-31 | Permanent magnet motor loading test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212781137U true CN212781137U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021860904.9U Active CN212781137U (en) | 2020-08-31 | 2020-08-31 | Permanent magnet motor loading test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212781137U (en) |
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2020
- 2020-08-31 CN CN202021860904.9U patent/CN212781137U/en active Active
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