CN202735435U - Frequency converter load test platform - Google Patents
Frequency converter load test platform Download PDFInfo
- Publication number
- CN202735435U CN202735435U CN 201220353214 CN201220353214U CN202735435U CN 202735435 U CN202735435 U CN 202735435U CN 201220353214 CN201220353214 CN 201220353214 CN 201220353214 U CN201220353214 U CN 201220353214U CN 202735435 U CN202735435 U CN 202735435U
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- frequency converter
- asynchronous motor
- measured
- test platform
- energy feedback
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Abstract
The utility model discloses a frequency converter load test platform. The frequency converter load test platform comprises a frequency converter to be tested, an energy feedback frequency converter, a first asynchronous motor, a second asynchronous motor and a host computer, wherein the a power supply end of the frequency converter to be tested is connected with a first electrical network, a motor end of the frequency converter to be tested is connected with the first asynchronous motor, a rotation shaft of the first asynchronous motor is coaxially connected with a rotation shaft of the second asynchronous motor, a motor end of the energy feedback frequency converter is connected with the second asynchronous motor, a power supply end of the energy feedback frequency converter is connected with a second electrical network, and the host computer is respectively in communication connection with the frequency converter to be tested and the energy feedback frequency converter. According to the frequency converter load test platform, feedback of energy outputted by the converters is used in the electrical networks, so a problem of energy waste is solved, and test cost is reduced, moreover, the host computer is arranged in the frequency converter load test platform for controlling operation of the frequency converter to be tested and the energy feedback frequency converter, so test efficiency of the frequency converters is improved.
Description
Technical field
The utility model relates to a kind of inverter load test platform.
Background technology
Whether frequency converter all needs properties of product are carried out detailed dispatch from the factory test, especially load testing when dispatching from the factory, test to check the quality of frequency converter qualified by these.
At present, the load testing of frequency converter is to generate electricity by the driving motor drawing generator, then the electric energy that sends is consumed by power resistor.This test platform has been wasted a large amount of electric energy, also needs to solve the resistance heat dissipation problem simultaneously in the process of test.In addition, also there are the problems such as testing efficiency is low in this testing scheme.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of can saves energy, and can realize the inverter load test platform of automatic test.
The technical scheme that the utility model adopts is: a kind of inverter load test platform comprises frequency converter to be measured, energy feedback frequency converter, the first asynchronous motor, the second asynchronous motor and host computer; The power end of frequency converter to be measured is connected with the first electrical network, and motor side is connected with the first asynchronous motor; The rotating shaft of the first asynchronous motor is connected with the rotating shaft of the second asynchronous motor is coaxial; The motor side of energy feedback frequency converter is connected with the second asynchronous motor, and power end is connected with the second electrical network; Host computer communicates to connect with frequency converter to be measured and energy feedback frequency converter respectively.
After adopting technique scheme, the utility model in electrical network, has solved the energy dissipation problem to the energy feedback of frequency converter output, reduces testing cost.In addition, owing in the utility model, be provided with the host computer of control frequency converter to be measured and the operation of energy feedback frequency converter, thus improved the testing efficiency of frequency converter.
Description of drawings
Fig. 1 is the theory diagram according to the utility model inverter load test platform one embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model made further specify.
As shown in Figure 1, the inverter load test platform according to the utility model one embodiment comprises frequency converter 1 to be measured, energy feedback frequency converter 2, the first asynchronous motor 3, the second asynchronous motor 4 and host computer 5.
The power end of frequency converter 1 to be measured is connected with the first electrical network 7, and motor side is connected with the first asynchronous motor 3, is used for driving the first asynchronous motor 3.The rotating shaft of the first asynchronous motor 3 is connected with the rotating shaft of the second asynchronous motor 4 is coaxial.The motor side of energy feedback frequency converter 2 is connected with the second asynchronous motor 4, and power end is connected with the second electrical network 8, is used for the electric energy feedback to the second that the sends electrical network 8 with the second asynchronous motor 4.Host computer 5 communicates to connect with frequency converter 1 to be measured and energy feedback frequency converter 2 respectively.
Electric energy is input to frequency converter 1 to be measured from the first electrical network 7, through frequency converter 1 rear drive the first asynchronous motor 3 to be measured, the mode energy that drags is passed to the second asynchronous motor 4 from the first asynchronous motor 3 through coaxial, pass through again energy feedback frequency converter 2 energy feedback in the second electrical network 8.Frequency converter 1 to be measured adopts speed control mode to drive the first asynchronous motor 3.Energy feedback frequency converter 2 adopts torque mode to drive the second asynchronous motor 4, mainly plays to frequency converter 1 to be measured and carries out the effect of load loading and energy feedback.Host computer 5 and frequency converter 1 to be measured are connected with the energy feedback frequency converter and are carried out two-way communication and be connected, to frequency converter 1 to be measured start, stop, the operation such as rotating, speed governing, parameter modification, be used for monitoring simultaneously the running status of frequency converter 1 to be measured, the variation of for example temperature rise, electric current and voltage, thereby whether the performance parameter that can understand frequency converter to be measured is normal, and the parameter that is measured can be sent in the host computer preserves.In addition, it is given that host computer 5 also carries out torque to energy feedback frequency converter 2, is used for frequency converter 1 to be measured is added off-load.
In one embodiment, aforesaid frequency converter to be measured 1 is high voltage converter, the energy feedback frequency converter is four-quadrant frequency converter, the first asynchronous motor 3 is high-voltage asynchronous motor, the second asynchronous motor 4 is low-pressure asynchronous motor, host computer 5 is the PLC controller, and the first electrical network 7 is high-voltage fence, and the second electrical network 8 is low voltage electric network.
The step that the inverter load test platform of employing the utility model one embodiment carries out the frequency converter full load test is as follows:
Step 1, start four-quadrant frequency converter, the basic parameter of four-quadrant frequency converter is set.Wherein, operational mode is made as torque control, motor type is set to asynchronous, and the parameter such as rated power, rated current, rated frequency, rated speed, rated voltage, motor pole number, specified slip frequency, maximum slip frequency of the second asynchronous motor is set simultaneously.
Step 2, the basic parameter of frequency converter to be measured is set.Wherein, operational mode is set to vector controlled, motor type is set to asynchronous, and the parameter such as rated power, rated current, rated frequency, rated speed, rated voltage, motor pole number, specified slip frequency, maximum slip frequency of the first asynchronous motor is set.
Step 4, the torque direction by the host computer four-quadrant frequency converter are set to opposite with the torque direction of frequency converter to be measured, that is, torque direction is set to 1, starts to begin to load, until frequency converter rated current to be measured reaches 100%, and make its full gear operation 3-5 minute.
Claims (3)
1. an inverter load test platform is characterized in that, comprises frequency converter to be measured, energy feedback frequency converter, the first asynchronous motor, the second asynchronous motor and host computer;
The power end of described frequency converter to be measured is connected with the first electrical network, and motor side is connected with described the first asynchronous motor;
The rotating shaft of described the first asynchronous motor is connected with the rotating shaft of described the second asynchronous motor is coaxial;
The motor side of described energy feedback frequency converter is connected with described the second asynchronous motor, and power end is connected with the second electrical network;
Described host computer communicates to connect with frequency converter to be measured and energy feedback frequency converter respectively.
2. inverter load test platform as claimed in claim 1, it is characterized in that, described frequency converter to be measured is high voltage converter, described the first asynchronous motor is high-voltage asynchronous motor, described the second asynchronous motor is low-pressure asynchronous motor, described the first electrical network is high-voltage fence, and described the second electrical network is low voltage electric network.
3. inverter load test platform as claimed in claim 1 is characterized in that, described frequency converter to be measured adopts speed control mode to drive the first asynchronous motor, and described energy feedback frequency converter adopts torque mode to drive the second asynchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353214 CN202735435U (en) | 2012-07-20 | 2012-07-20 | Frequency converter load test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353214 CN202735435U (en) | 2012-07-20 | 2012-07-20 | Frequency converter load test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202735435U true CN202735435U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220353214 Expired - Fee Related CN202735435U (en) | 2012-07-20 | 2012-07-20 | Frequency converter load test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202735435U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995206A (en) * | 2014-05-30 | 2014-08-20 | 江苏三恒科技股份有限公司 | Frequency converter testing device |
| CN104697799A (en) * | 2015-03-10 | 2015-06-10 | 无锡惠科电工高新技术有限公司 | Automatic load increase testing system and testing method for engine |
| CN105067925A (en) * | 2015-07-29 | 2015-11-18 | 浙江易控电子科技有限公司 | Energy-recyclable frequency converter testing system, testing method and installation method |
| CN105790672A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Frequency converter test system |
| CN109031160A (en) * | 2018-10-08 | 2018-12-18 | 华高科技（苏州）有限公司 | A kind of ABB converter circuit plate load capacity detection method |
| CN109142928A (en) * | 2018-08-28 | 2019-01-04 | 惠州市金田科技有限公司 | A kind of frequency converter is to dragging test method |
| CN109474221A (en) * | 2018-11-14 | 2019-03-15 | 苏州绿控传动科技股份有限公司 | A kind of motor plus-minus load avoids the host computer button design method of maloperation |
-
2012
- 2012-07-20 CN CN 201220353214 patent/CN202735435U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995206A (en) * | 2014-05-30 | 2014-08-20 | 江苏三恒科技股份有限公司 | Frequency converter testing device |
| CN104697799A (en) * | 2015-03-10 | 2015-06-10 | 无锡惠科电工高新技术有限公司 | Automatic load increase testing system and testing method for engine |
| CN105067925A (en) * | 2015-07-29 | 2015-11-18 | 浙江易控电子科技有限公司 | Energy-recyclable frequency converter testing system, testing method and installation method |
| CN105790672A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Frequency converter test system |
| CN109142928A (en) * | 2018-08-28 | 2019-01-04 | 惠州市金田科技有限公司 | A kind of frequency converter is to dragging test method |
| CN109031160A (en) * | 2018-10-08 | 2018-12-18 | 华高科技（苏州）有限公司 | A kind of ABB converter circuit plate load capacity detection method |
| CN109474221A (en) * | 2018-11-14 | 2019-03-15 | 苏州绿控传动科技股份有限公司 | A kind of motor plus-minus load avoids the host computer button design method of maloperation |
| CN109474221B (en) * | 2018-11-14 | 2022-06-14 | 苏州绿控传动科技股份有限公司 | Upper computer key design method for avoiding misoperation during loading and unloading of motor |
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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: 20130213 Termination date: 20180720 |