System Approach to the Evaluation of the Traction Electric Motor Quality

Abstract

The electric motor (EM) is one of the main components of any system. The EM quality is set at the design and manufacturing stages, and its technical condition is maintained during operation. Therefore, the development of methods for the EM quality determining at its all life cycle stages is urgent. In the paper, for the first time, we proposed the system approach to traction EM quality estimation on the vibration parameter basis. This approach differs in that the study of EM vibration is carried out in 1/3 octave spectrum of frequencies from 50 Hz to 10 kHz (dB), which allows revealing all existing faults or "weak places" of EM. This method is universal for all types of EM. It is based on the results of the largescale experiments using the system analysis and the objectives tree method and allows combining individual problem solutions to improve the quality of design, manufacture, and operation of EM into a single integrated system of quality assessment.

Determining the Quality of Electric Motors by Vibro-Diagnostic Characteristics

“…These data were obtained during experimental studies. It should be noted that they coincide with existing data, which confirms the adequacy and reliability of the results [12,[18][19][20][21].…”

“…In this regard, diagnosing EMs quality at the design, production, acceptance and testing stages is one of the most important ways to increase the reliability and cost-effectiveness of equipment. But the choice of EM study method is of particular importance is [12].…”

“…Despite the fact that there are national and international standards for electric rotary machines, the problem of improving the methods of determining their quality, finding the criteria that most broadly describe the condition of the engine and the development of methods for their diagnosis is paid much attention by scientists and engineers around the world [12].…”

Functional and Engineering Methods of Upgrading the Quality of Induction Traction Electric Motors

“…This work is a continuation of the research presented by the authors [7,24]. These publications discuss the main EМ defects.…”

Methodology of Presenting the Results of Scientific Research

“…Efficiency of many areas of human activity depends on what kind of machines are created, what performance indicators characterize them, how machines interact with people and the environment [1]. The creation of such machines, devices, technologies requires from scientists around the world to develop environmental, economic and safe solutions [2], search for alternative sources of electricity [3,4], create new and improve the existing equipment [5,6].…”