Development and study on the MATLAB model of the dynamic characteristics of electric drivebased on the TVR-IM system
Students Name: Meteshko Oleh Ihorovych
Qualification Level: magister
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: In the modern era of technological advancement and automation, effective and precise control of electric drives becomes a crucial task in various industrial sectors. To meet the challenges of the present, engineers and scientists continually conduct research to improve control systems, and thyristor voltage regulators in conjunction with asynchronous motors prove to be highly efficient and widely applied. The aim of this thesis is to conduct a comprehensive investigation into a system comprising a thyristor voltage regulator and an asynchronous motor, with the goal of understanding its working processes deeply and determining parameters that maximize efficiency and ensure reliable operation. Researching this system is significant for contributing insights into its operational procedures and optimizing its performance for diverse applications. In the first chapter, we will delve into the application of the thyristor voltage regulator, examining its key technical characteristics and control principles. We will explore the main market propositions and determine the advantages of employing this type of drive regulation. In the second chapter, our focus will be on the theoretical foundations of the system, the key elements of the electric drive that determine their performance and efficiency. This chapter will describe the system components, delve into their structure, operational principles, technical specifications, and peculiarities of use. Additionally, we will outline the fundamental principles of modeling this system, conduct an analysis of calculating the main parameters from which the transient functions of the model are derived. The third chapter will amalgamate the discussion, analyzing the interaction between the thyristor voltage regulator and the asynchronous motor. We will explore the regulator’s impact on the motor’s operational characteristics, system stability, and possibilities for optimizing control parameters to achieve maximum productivity. To practically study the system, we will employ modern modeling and analysis methods to refine and deepen our research findings. In the concluding chapter, we will summarize the outcomes of our investigations and provide recommendations for the optimal utilization of the thyristor voltage regulator and asynchronous motor system in various engineering and industrial sectors. Additionally, we will discuss potential avenues for further enhancements and directions for future scientific research in this field. We will compare the obtained speed characteristics of the transient process when applying a step-like torque signal. This will provide us with a well-founded answer regarding the stability of the system. The results of this research can be utilized for the development and optimization of modern electric drives, enhancing their performance and energy efficiency. This work aims to contribute to the advancement and improvement of electric drive control systems for further applications in industrial and technical sectors. Study object ? the speed regulation processes of the electric drive in the TRV-AM system. Scope of research ? transient processes of dynamic characteristics in the electric drive system of the TRV-AM. Goal of research: to сalculate the system parameters, create its mathematical model, and subsequently obtain dynamic characteristics while varying the voltage and applying an impulse signal of torque resistance. Evaluate and compare the obtained results, drawing conclusions about the effectiveness of the system. Keywords: thyristor voltage regulator, automation, asynchronous motor, mathematical model, voltage regulation, research. References: 1. AC Electric Drive. A.Y. Chernishev, Y.N. Dementyev, I.A. Chernishev 2. Automated Control Systems for Electric Drives. V.V. Moskalenko 3. Elements of Automated Electric Drive. M.G. Popovych, V.A. Havryliuk, V.O. Kovalchuk, V.I. Teriaiev. 4. Electromechanical Systems of Automatic Control and Electric Drives / Edited by M.G. Popovych, O.Y. Lozynskyi. 5. M.G. Popovych, V.V. Kostrytskyi Electromechanical Automation Systems and Electric Drives (Theory and Practice). Educational Manual 6. Automatic control systems by Benjamin C. Kuo