@taltech.ee
TalTech Virumaa College, School of Engineering
ENERGY TECHNOLOGY PROCESSES CONTROL WORKING GROUP
Natural Sciences and Engineering; Mechanical Engineering, Automation Technology and Manufacturing Technology; Mechanical engineering, hydraulics, vacuum technology, vibration acoustic engineering ; Multifractal Analysis Signals
Scopus Publications
Tatjana Baraškova, Karolina Kudelina, and Veroonika Shirokova
MDPI AG
This manuscript addresses the critical challenges in achieving high-accuracy remote control of electromechanical systems, given their inherent nonlinearities and dynamic complexities. Traditional diagnostics often suffer from data inaccuracies and limitations in analytical techniques. The focus is on enhancing the dynamic model accuracy for remote induction motor control in both closed- and open-loop speed control systems, which is essential for real-time process monitoring. The proposed solution includes real-time measurements of input and output physical quantities to mitigate inaccuracies in traditional diagnostic methods. The manuscript discusses theoretical aspects of nonlinear torque formation in induction drives and introduces a dynamic model employing vector control and speed control schemes alongside standard frequency control methods. These approaches optimize frequency converter settings to enhance system performance under varying nonlinear conditions. Additionally, the manuscript explores methods to analyze dynamic, systematic errors arising from frequency converter inertial properties, thereby improving electromechanical equipment condition diagnostics. By addressing these challenges, the manuscript significantly advances the field, offering a promising future with enhanced dynamic model accuracy, real-time monitoring techniques, and advanced control methods to optimize system reliability and performance.
Karolina Kudelina, Tatjana Baraškova, Veroonika Shirokova, Toomas Vaimann, and Anton Rassõlkin
MDPI AG
Electrical machines are to face different challenging factors during operation, such as high unexpected or excessive loads, unusual properties of the working environment, or intense fluctuations in rotation speed. Therefore, maintenance questions and predicting the accuracy of an equipment’s condition have great importance. This study is based on the theory of vibration reliability. This article introduces the most common faults of bearings in electrical machines and discusses their diagnostic possibilities. Experimental setup, as well as studied bearing failures, are described. The accuracy of conducted experiments is introduced.
Aleksei Hõbesaar, Tatjana Baraškova, and Veroonika Shirokova
Springer International Publishing
Dmitri Gornostajev, Gennady Aryassov, Tatjana Barashkova, and Sergei Zhigailov
Elsevier BV
TATJANA BARASHKOVA
WORLD SCIENTIFIC