Surface-mounted permanent magnet synchronous motor bearing fault degree evaluation method and device
A permanent magnet synchronous motor and fault degree technology, which is used in measuring devices, motor generator testing, mechanical component testing, etc., and can solve problems such as monitoring the fault degree of permanent magnet synchronous motor bearings
Active Publication Date: 2021-04-30
ZHEJIANG SCI-TECH UNIV
View PDF3 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the embodiment of the present invention is to provide a surface-mounted permanent magnet synchronous motor bearing failure degree evaluation method and device to solve how to solve the permanent magnet synchronous motor bearing failure monitoring issues
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0041] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the following in conjunction with the accompanying drawings and preferred embodiments, the method and device for monitoring the bearing fault degree of the surface-mounted permanent magnet synchronous motor proposed by the present invention are detailed Embodiments, features and effects are described in detail below.
[0042] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of specific embodiments, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the accompanying drawings are only for reference and description, and are not used to explain the present invent...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of motor fault vibration and prediction, and discloses a surface-mounted permanent magnet synchronous motor bearing fault degree evaluation method and device. The method comprises the steps of obtaining the vibration waveform of a surface-mounted permanent magnet synchronous motor, conducting fourier decomposition on the vibration waveform, and calculating the main order and the corresponding amplitude of the vibration waveform, substituting the amplitude corresponding to the main order of the vibration waveform into a bearing fault degree index calculation model to obtain a fault degree index value, obtaining a standard index value when the motor bearing is in a fault degree, and comparing the fault degree index value with the standard index value, and evaluating the current fault degree of the motor bearing. The method is helpful for monitoring the bearing fault degree of the permanent magnet synchronous motor under the actual working condition and performing fault prediction according to the change of the bearing fault degree.
Description
technical field [0001] The invention relates to the technical field of motor fault diagnosis and prediction, in particular to a method and device for evaluating the fault degree of a surface-mounted permanent magnet synchronous motor bearing. Background technique [0002] Permanent magnet synchronous motor has the advantages of high power-to-mass ratio, energy utilization rate and good servo performance, and is widely used in machinery manufacturing, robot control, aerospace and other fields. The failure of the motor bearing will aggravate the vibration and noise of the motor, which will seriously affect the normal operation. If the online monitoring of the bearing failure degree of the permanent magnet synchronous motor can be realized when the machine equipment is working normally, and the health status of the bearing of the permanent magnet synchronous motor can be evaluated in turn, it will help to realize the bearing failure prediction of the motor. [0003] Motor bear...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/045G01R31/34
CPCG01M13/045G01R31/34
Inventor 贺青川黄晓诚陈文华潘骏薛赛
Owner ZHEJIANG SCI-TECH UNIV