A motor detection method and device

A detection method and motor shaft technology, applied in measuring devices, motor generator testing, measuring electricity, etc., can solve problems such as not meeting the development requirements of the smart grid, failing to realize the self-inspection of the driving motor, and imperfect self-inspection technology of the driving motor, etc. , to achieve the effects of saving detection and maintenance costs, improving the level of intelligence, and improving reliability

Active Publication Date: 2021-04-20
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Compared with traditional circuit breaker products, the existing motor direct drive circuit breaker products have greatly reduced the manual maintenance cycle and cost, but still cannot realize the self-inspection of the drive motor, which does not meet the development requirements of the smart grid. The reason is that the drive motor The self-test technology is not yet perfect, and the periodic function test of the drive motor cannot be carried out

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  • A motor detection method and device
  • A motor detection method and device
  • A motor detection method and device

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Embodiment Construction

[0073] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0074] figure 1 It is a schematic diagram of the connection between the motor and the circuit breaker provided by the embodiment of the present invention.

[0075] Figure 2a It is a schematic diagram of the closed state of the brake disc provided by the embodiment of the present invention.

[0076] Figure 2b It is a schematic diagram of the brake disc opening state provided by the embodiment of the present invention...

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Abstract

The invention discloses a motor detection method and device. The motor is used to drive a circuit breaker, and the motor shaft is connected to the circuit breaker through a brake disc. The method includes: detecting the actual motion curve of the motor shaft, wherein the motion curve is the rotation angle of the motor shaft Time-varying curve; compare the actual motion curve with the preset motion curve; if the angle difference between the actual motion curve and the preset motion curve at any moment is less than the preset angle value corresponding to the moment, it is determined that the motor is working The state is normal; if the angle difference between the actual motion curve and the preset motion curve at any moment is greater than or equal to the preset angle value corresponding to that moment, it is determined that the motor is in an abnormal working state. By obtaining the actual motion curve of the motor shaft and comparing it with the preset motion curve, it is judged whether the motor is in normal working condition, which improves the intelligence level and reliability of the high-voltage switchgear, and realizes the transition from "regular maintenance" to "condition maintenance". Save maintenance cost.

Description

technical field [0001] The invention relates to the technical field of motor detection, in particular to a motor detection method and device. Background technique [0002] The current high-speed development of smart grid (Smart Grid) requires high-voltage switchgear to be intelligent. That is, through the monitoring of key parameters such as mechanical status, electrical status and control status, comprehensively evaluate equipment operation reliability, control reliability and load capacity, and realize the transformation of high-voltage switchgear maintenance from "regular maintenance" to "condition maintenance", thereby improving Reliable operation, save maintenance costs, and bring huge technical and economic benefits to enterprises and society. [0003] Motor direct drive circuit breaker technology is to connect the motor directly with the high voltage circuit breaker, and control the opening and closing operation of the moving contact of the circuit breaker. Compared...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 肖曦王潇邓渊黄瑜珑杨浩楠范乃元何保营
Owner TSINGHUA UNIV
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