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Online monitoring device of state of motor device and monitoring method thereof

A technology for monitoring the state of devices and equipment, applied in the field of detection, can solve problems such as inability to quantitatively analyze and predict failures in advance, and achieve the effect of solving hidden troubles

Active Publication Date: 2012-10-03
SHENZHEN HIETECH ENERGY TECH
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a device and method for on-line detection of electric motors, which uses comprehensive real-time monitoring of the state parameters of several important parts of the motor stator, rotor and bearings to solve the technical problems that cannot be quantitatively analyzed and cannot be predicted in advance in the prior art

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  • Online monitoring device of state of motor device and monitoring method thereof
  • Online monitoring device of state of motor device and monitoring method thereof
  • Online monitoring device of state of motor device and monitoring method thereof

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Embodiment Construction

[0008] Specific embodiments of the present invention are described with reference to the above drawings.

[0009] The motor is composed of several parts such as stator, rotor, bearing and air gap. Due to the long-term operation of the motor, its performance will gradually deteriorate, which will lead to various failures of the motor. Generally, according to the location of the fault, common faults can be divided into stator faults, rotor faults, and bearing faults. In order to prevent various faults of the motor, real-time state monitoring is required to prevent the occurrence of faults.

[0010] Stator winding faults mainly include inter-turn short circuit, overheating, and insulation faults. Among them, inter-turn short circuit faults account for 50% of stator winding faults, overheating faults account for about 20%, and insulation faults account for about 25%. By monitoring the stator three-phase current spectrum, voltage, temperature, etc., the specific fault of the stat...

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Abstract

The invention relates to an online monitoring device of a state of a motor device, which comprises a data acquisition module (10), a data processing module (20), a data analysis module (30), a data output module (40) and a power supply module (50) connected in sequence. The monitoring method of the device comprises the steps of: collecting the parameters of the motor via the data acquisition module; processing the collected data to adapt to needs of the data analysis module; and comprehensively analyzing the data via the data analysis module, and outputting analysis results to the data output module. The traditional motor detection method is changed, the online monitoring method is applied, the health condition of each state of the motor can be mastered more accurately and promptly, hidden faults of the motor can be solved more effectively and early, the monitoring does not depend on the skill level of the staff, and the online state monitoring and fault diagnosis of the motor is the inevitable trend of future development.

Description

technical field [0001] The invention relates to detection technology, in particular to a device and method for on-line monitoring of a motor. Background technique [0002] In modern industrial production and our daily life, the motor is the most important driving force and driving device, and it is widely used. At present, the regular maintenance of electric motors is carried out in the form of preventive tests on the basis of equipment power outages. Before the maintenance, there is a lack of understanding of whether there are defects, hidden dangers, and other health conditions in the equipment. The maintenance work has great blindness and limitations. At the same time , which increases the power outage time and affects the reliability of equipment operation. This method can eliminate some possible hidden troubles in advance and has a certain protective effect, but its disadvantage is that it cannot find out the health status of the motor when it is working, and the possi...

Claims

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Application Information

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IPC IPC(8): G01R31/34
Inventor 何玉成
Owner SHENZHEN HIETECH ENERGY TECH
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