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LabVIEW-based intelligent submersible motor distribution method

A technology of submersible motor and intelligent power distribution, which is applied in the direction of control of generator, motor generator control, AC motor control, etc., to achieve the effect of preventing overheating

Active Publication Date: 2015-03-04
北京锌科能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the submersible motor cannot be adjusted and protected in a timely and reliable manner in the existing power distribution method, and to provide a smart power distribution method for the submersible motor based on LabVIEW

Method used

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  • LabVIEW-based intelligent submersible motor distribution method
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specific Embodiment approach 1

[0029] Specific implementation mode one: combine figure 1 and figure 2 Illustrate present embodiment, present embodiment is a kind of submersible motor intelligent power distribution method based on LabVIEW, described method is based on upper computer and data acquisition card realization, and described upper computer adopts LabVIEW to realize, and it comprises the steps:

[0030] Steps for establishing real-time communication with the data acquisition card;

[0031] a step of inputting a sampling signal and storing the sampling signal;

[0032] According to the sampling signal, the running state subVI monitors the running state of the motor, and sends the monitored temperature signal to the control signal subVI;

[0033] When the control signal subVI judges that the monitored temperature signal exceeds the set threshold range, the frequency corresponding to the load of the submersible motor is obtained at this time, and according to the frequency, the corresponding voltage...

specific Embodiment approach 2

[0044] Specific embodiment two: This embodiment is a further limitation of a LabVIEW-based intelligent power distribution method for submersible motors described in specific embodiment one. The operating state sub-VI includes parameter identification sub-VI, inductance identification sub-VI, and speed identification. SubVI, temperature identification subVI and temperature prediction subVI.

[0045] After the sampling signal is accurately collected and separated, it is necessary to monitor the running state of the motor, which mainly includes parameter identification, speed identification, temperature identification, temperature prediction, and control signals. Due to the complexity of the program algorithm, it will take up a lot of time during operation. Large memory space, so the code is encapsulated into a subVI, and various functions of the program are realized by calling the subVI, which also makes the program more concise and the logical relationship clearer.

[0046] Com...

specific Embodiment approach 3

[0061] Specific embodiment three: this embodiment is a further limitation of a LabVIEW-based submersible motor intelligent power distribution method described in specific embodiment one,

[0062] When the control signal subVI judges that the monitored temperature signal exceeds the set threshold range, the step of using an alarm to give an audible and visual alarm.

[0063] The temperature alarm includes two parts: alarm and early warning. Two circular indicator controls are added to the front panel. When the identified temperature exceeds the set threshold, the alarm light will be on, requiring manual inspection or shutdown for maintenance. When the predicted final value of the temperature exceeds the set threshold, the warning light is on, indicating that the motor is about to fail due to overheating. At this time, the developed host computer program will send corresponding signals for adaptive intelligent control, and corresponding measures can also be taken artificially. ....

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Abstract

The invention, which belongs to the submersible motor distribution field, provides a LabVIEW-based intelligent submersible motor distribution method, thereby solving a problem that the submersible motor can not be adjusted and protected timely and reliably with the existing distribution method. According to the invention, the method is realized by an upper computer and a data acquisition card; and the upper computer is realized by using LabVIEW. The method comprises the following steps that: step one, real-time communication with the data acquisition card is established; step two, a sampling signal is inputted and stored; step three, according to the sampling signal, a running state sub VI monitors the motor running state and sends the monitored temperature information to a control signal sub VI; step three, when the control signal sub VI determines the monitored temperature exceeds a set threshold range, the current frequency corresponding to the submersible motor load is obtained and a corresponding voltage control signal and an optimum voltage frequency ratio are sent to the data acquisition card according to the frequency; and step four, and the monitored temperature is displayed in real time and is stored. The method is applied to submersible motor distribution.

Description

technical field [0001] The invention belongs to the field of power distribution of submersible motors. Background technique [0002] The submersible motor generally works at a depth of 2km to 3km underground, and is connected to the ground power supply through a long cable. Since the working space of the submersible motor is extremely narrow and the cooling effect is very poor, it is particularly important to monitor the operation of the motor in all aspects. However, the existing technology cannot timely and reliably adjust and protect the submersible motor. Contents of the invention [0003] The object of the present invention is to provide a smart power distribution method for submersible motors based on LabVIEW in order to solve the problem that the submersible motor cannot be adjusted and protected in a timely and reliable manner in the existing power distribution method. [0004] The present invention comprises the following steps: [0005] Described method is real...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/14H02P27/04
Inventor 王立国张淋张希月徐殿国蒋清月张海聪李振宇李雪云于健雄
Owner 北京锌科能源技术有限公司