Engineering of a mine hoist drive system using am with variable frequency induction drive
Students Name: Hrytsenko Serhii Olehovych
Qualification Level: master (ESP)
Speciality: Electrical Energetics, Electrical Engineering and Electromechanics
Institute: Institute of Power Engineering and Control Systems
Mode of Study: full
Academic Year: 2023-2024 н.р.
Language of Defence: ukrainian
Abstract: Pages – 64, figures – 14, tables – 2 , references – 7. In this thesis project, we designed a mine hoist drive using a VFD. Mine hoists are an important component of the mining industry, providing transportation of materials and employees of coal mining enterprises. Due to the difficult operating conditions in the mine shaft, the electromechanical systems responsible for lifting the load have high requirements for reliability, accuracy and safety. In this master’s thesis, an automated control system for the winder using an asynchronous electric drive with vector control was researched and developed. The analysis of different types of electric drives showed the advantages of an asynchronous electric drive with vector control compared to other options, in particular, high speed control accuracy, smooth motor rotation and fast response to load changes. Taking into account the operating conditions in the mine, the power of the drive was calculated and a suitable induction motor and frequency converter were selected. In the following stages, an indirect vector control system for the induction motor was developed to ensure efficient development of a given cnc motion diagram. The dynamic characteristics of the system in various modes, such as lifting and lowering the load, were investigated using mathematical modelling. The modelling results confirm the system’s performance and its compliance with operational requirements. Therefore, the results obtained are an important step in improving the electromechanical systems of the crane loader, which will contribute to the efficiency and safety of mining operations. The object of study is the electromechanical systems of mine hoists used to raise and lower loads in mine shafts. The subject of the study is the automation of electromechanical systems of mine hoists, in particular, the development and research of a control system to ensure efficient lifting and lowering of cargo into the mine. The aim of the study is to develop and analyse a control system for electromechanical systems of mine hoists to ensure their efficient and safe operation. This includes the development of control algorithms, selection and optimisation of electric drives, as well as mathematical modelling and analysis of the dynamic characteristics of the control system during lifting and lowering of the load. Keywords: skipping hoisting installation, mine, frequency converter (FC), asynchronous machine (AM), digital and mathematical models. SHI - Skipping hoisting installation 1. Beshta, O.S.; Balakhontsev, O.B. Electric drive of mine hoisting units. Prospects of development // Mining electromechanics and automation. - 2007. - Issue 78/2007. p.115-118. 2. Ostroukhov, I.O.; Borisenko, V.F. Comparative analysis of electric drive systems of mine hoisting units // Proceedings of DonNTU. - 2005. -с.143-145. 3. Hoisting installations: Study guide / M.G.Popovych, B.M.Matsko - K.: NTUU ‘KPI’, 2002.- 149 p. 4. Kravchik A.E. Induction motors of 4A series: Reference book / A.E. Kravchik, M.M. Shlaf, V.I. Afonin, E.A. Sobolenskaya - Moscow: Energoatomizdat, 1982 - 504. 5. Sokolov M.M. ‘Automated electric drive of general industrial mechanisms’. Moscow: Energia, 1976, p. 544. 6. Pesvianidze A.V. ‘Calculation of mine hoisting units’. Moscow: Nedra. 250 pp. 7. Lecture notes on the discipline ‘Theory of electric drive’ for students of the direction 050702 - Electromechanics (Part I) / compiled by Y. Sokhina - Dneprodzerzhinsk: DSTU, 2015, 112 pp.