The probability estimate of the defects of the asynchronous motors based on the complex method of diagnostics

[摘要] This article is devoted to the development of a method for probability estimate of failure of an asynchronous motor as a part of electric drive with a frequency converter. The proposed method is based on a comprehensive method of diagnostics of vibration and electrical characteristics that take into account the quality of the supply network and the operating conditions. The developed diagnostic system allows to increase the accuracy and quality of diagnoses by determining the probability of failure-free operation of the electromechanical equipment, when the parameters deviate from the norm. This system uses an artificial neural networks (ANNs). The results of the system for estimator the technical condition are probability diagrams of the technical state and quantitative evaluation of the defects of the asynchronous motor and its components.

[发布机构] St. Petersburg Mining University, 2, 21 Line of Vasilyevsky Island, St. Petersburg; 199106, Russia^1

[效力级别] 电工学

[关键词] Comprehensive method;Electrical characteristic;Electromechanical equipments;Operating condition;Probability estimate;Probability of failure;Quantitative evaluation;Technical conditions