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A motor phase loss detection method, device and electronic equipment

A phase-loss detection, three-phase technology, which is used in motor generator testing, multi-phase network asymmetry measurement, etc., to achieve the effect of simple operation, less error-prone, and avoiding misjudgment of lack of phase.

Active Publication Date: 2019-06-25
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a motor phase loss detection method, device and electronic equipment, which can solve the problem of how to more accurately determine whether a motor has a phase loss

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  • A motor phase loss detection method, device and electronic equipment
  • A motor phase loss detection method, device and electronic equipment
  • A motor phase loss detection method, device and electronic equipment

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Embodiment Construction

[0069] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0070] It should be noted that, if there is no conflict, various features in the embodiments of the present invention can be combined with each other, which are all within the protection scope of the present invention. In addition, although the functional modules are divided in the schematic diagram of the device, and the logical sequence is shown in the flowchart, in some cases, the modules in the device may be divided differently, or the sequence shown in the flowchart may be performed. or the described steps.

[0071] The motor phase loss detection method provided by the embodiment of ...

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Abstract

A method for detecting a phase loss of a motor, comprising: determining a current threshold Y1, a sampling frequency f and the number N1 of samplings which correspond to the current control current of a motor (110); continuously performing N1 samplings on each phase control current of the motor according to the sampling frequency f, so as to obtain N1 current values of each phase control current (120); respectively averaging the absolute values of N1 current values of each phase control current, and acquiring an average sampling value of each phase control current (130); and if the average sampling value of any one phase control current is less than the current threshold Y1, determining that the motor lacks at least one phase control current at present (140). The present method can still effectively avoid the occurrence of a misjudgment of a phase loss when the waveform of an actual control current differs from that of an ideal control current, improving the accuracy of detecting a phase loss of the motor, furthermore, the computation in the processing procedure is simple, and is unlikely to encounter any errors.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of motors, and in particular, to a method, device and electronic device for detecting phase loss of a motor. Background technique [0002] In recent years, drones have been widely used in aerial photography, plant protection, power inspection, disaster relief and many other fields due to their advantages of flexibility, quick response, unmanned driving, and low operation requirements. [0003] The motor is an important part of the power system of the UAV. Therefore, the fault detection of the motor is an indispensable link to ensure the safe flight of the UAV. In the fault detection project of the motor, the phase loss detection of the control current of the motor is particularly important. When there is a phase loss in the control current of the motor, the motor may vibrate and cannot operate normally, the rotation is weak, the load performance is reduced, and the noise is large. In m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/16G01R31/34
CPCG01R29/16G01R31/34
Inventor 陈毅东范晓生林楚翔
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD