Home/ Majors directory/Electrical Energetics, Electrical Engineering and Electromechanics/Theoretical Fundamentals of Electrical Engineering
Theoretical Fundamentals of Electrical Engineering
Major: Electrical Energetics, Electrical Engineering and Electromechanics
Code of subject: 6.141.00.O.005
Department: Theoretical and General Electrical Engineering
Lecturer: Prof. Vasyl Maliar
Semester: 1 семестр
Mode of study: денна
Завдання: general competences: • ability to analyze and synthesize; • the ability to search, analyze and critically evaluate information from various sources; • the ability to communicate effectively at the professional and social levels; • creativity, ability to system thinking; • understanding the need for lifelong learning and the transfer of acquired knowledge professional competences: • the ability to apply information and communication technologies and programming skills to solve typical engineering tasks; • the ability to apply professional knowledge and practical skills for the creation of new and maintenance of existing electric power, electrotechnical and electromechanical systems and their components; • the ability to apply analytical methods of analysis, mathematical modeling and perform physical and mathematical experiments to solve engineering problems and when conducting scientific research; • the ability to critically analyze the main performance indicators of the system and evaluate the used technical solutions and equipment; • the ability to integrate knowledge from other disciplines, apply a systematic approach and take into account non-technical aspects when solving engineering problems and conducting research; • the ability to independently design systems and their elements, taking into account all aspects of the given task.
Learning outcomes: Zn. 4. Know and understand the theoretical foundations of metrology and electrical measurements, principles of operation of automatic control devices, relay protection and automation, have the skills to perform appropriate measurements and use the specified devices to solve professional tasks. Mental 2. To carry out the analysis of processes in electric power, electrotechnical and electromechanical equipment, relevant complexes and systems. Mind 10. Understand and demonstrate good professional, social and emotional behavior, to maintain a healthy lifestyle. Mind 11. Know the requirements of regulatory acts related to engineering activity, protection of intellectual property, labor protection, technology safety and industrial sanitation, take them into account when making decisions.
Required prior and related subjects: • Further Mathematics, • Physics; • Fundamentals of Programming and Software for Engineering Calculations.
Summary of the subject: In the discipline "Theoretical foundations of electrical engineering", the basics of the theory of linear electric circuits and methods of analysis of electric circuits of direct, sinusoidal and non-sinusoidal currents, three-phase circuits, the basics of the theory of quadripoles, methods of analysis of transient processes in linear electric circuits are considered circuits with concentrated parameters, the basics of the theory of linear electric circuits with distributed parameters, the basics of the theory of nonlinear electric and magnetic circuits, the basics of electromagnetic field theory. The discipline takes into account the peculiarities of bachelor's and master's training of all specializations that correspond to the specialty "Power Engineering, Electrical Engineering and Electromechanics".
Опис: Topic_1: Basics of the theory of electric and magnetic circuits. Elements of electric circuits, their parameters and mathematical models. Laws of electric circuits. Topic_2: Methods of linear electrical analysis circle: a) methods of currents and voltages, currents, voltages; b) methods of loop currents, nodal voltages; c) equivalent generator, equivalent transformations Elements of topology in the theory of electric circuits. Topic_3: Fundamentals of the theory of linear electrical circuits of sinusoidal current. Symbolic method of analysis of electric circuits sinusoidal current (complex calculation method). Powers in sinusoidal current circuits. Topic_4: Electrical circuits of sinusoidal current with mutual inductive connections. Topic_5: Resonance modes in sinusoidal electric circuits. Topic_6: Electric circuits of non-sinusoidal current. Decomposition of periodic functions into a Fourier series. Calculation of electric circuits of non-sinusoidal current. Topic_7: Three-phase circuits. Star and delta connection in three-phase circuits. Calculation of symmetric and asymmetric three-phase circles. Basics of the method of symmetrical components. Higher harmonics in three-phase circuits. Topic_8: Fundamentals of the theory of multipoles. Passive pass-through quadrupoles and their equations. Determination of the coefficients of the quadripole. Electric filters. Topic_9: Transient processes in linear electric circuits with concentrated parameters. Laws of commutation. Methods of analysis of transient processes: a) classical; b) operator; c) application of Duhamel's integral; d) numerical methods. Topic_10: Nonlinear electric circuits. Parameters of nonlinear elements. Calculation of non-linear electric circuits of direct current. Topic_11: Nonlinear magnetic circuits and their calculation: direct and inverse problems. Topic_12: Nonlinear electrical circuits of alternating current current and their calculation. Single-phase transformer with a ferromagnetic core: equation, substitute scheme. Ferroresonance phenomena in electric circuits. Topic_13: Fundamentals of electromagnetic field theory. Electromagnetic field equations in integral and differential forms. Ohm's and Joule-Lenz's laws in differential form.
Assessment methods and criteria: • Computational task, written reports on laboratory course, oral questioning (30%); • final control (control event – exam): written and oral form (70%).
Критерії оцінювання результатів навчання: Current control: laboratory classes - 15; protection of RGR - 15. Examination work (ER): written component -55; oral component - 15.
Порядок та критерії виставляння балів та оцінок: 100–88 points – (“excellent”) is awarded for a high level of knowledge (some inaccuracies are allowed) of the educational material of the component contained in the main and additional recommended literary sources, the ability to analyze the phenomena being studied in their interrelationship and development, clearly, succinctly, logically, consistently answer the questions, the ability to apply theoretical provisions when solving practical problems; 87–71 points – (“good”) is awarded for a generally correct understanding of the educational material of the component, including calculations, reasoned answers to the questions posed, which, however, contain certain (insignificant) shortcomings, for the ability to apply theoretical provisions when solving practical tasks; 70 – 50 points – (“satisfactory”) awarded for weak knowledge of the component’s educational material, inaccurate or poorly reasoned answers, with a violation of the sequence of presentation, for weak application of theoretical provisions when solving practical problems; 49-26 points - ("not certified" with the possibility of retaking the semester control) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to apply theoretical provisions when solving practical problems; 25-00 points - ("unsatisfactory" with mandatory re-study) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to navigate when solving practical problems, ignorance of the main fundamental provisions.
Recommended books: 1. Malyar V. S. Theoretical bases of electrical engineering. Electric Circuits. The textbook. – Lviv: Publishing House of Lviv Polytechnic National University – 2012 – 312 (in Ukrainian). 2. Perchach V. S. Theoretical electrical engineering. –K.: High Scholl, 1992 (in Ukrainian). 3. The basics of the theory of electronic circuits: the textbook / Yu. Bobalo, B Mandziy, P. Stakhiv, L. Pisarenko; Edited by Prof. Yu. Bobalo. – Lviv Polytechnic National University, 2008. – 332 c. 4. Problem book in theoretical bases of electrical engineering. Part 1: the textbook /Vorobkevych A., Malyar V, Sovyn R./ed. by A. Vorobkevych, A. Shegedyn. – K.: Magnolia Plus, 2004. -224 p. 5. Combined (hybrid) laboratory course on the theory of electric and electronic circuits, signals and measurements in the intelligent lab: the textbook / A. Vorobkevych, P. Stakhiv, S. Rendzinyak and others; Edited by Yu. Bobalo. - Lviv Polytechnic National University, 2016. -152 p. 6. Problem book in theoretical bases of electrical engineering. Part 2: the textbook /Hovykovych M., Vorobkevych A., Musyhina N. /ed. by P. Stakhiv. – – Lviv: Publishing House of Lviv Polytechnic National University, 2014. – 404 p. . 7. Malyar V. S. Theoretical bases of electrical engineering. – Lviv: Publishing House of Lviv Polytechnic National University, 2018. – 416 p.
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