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Fundamentals of Electrical Machines SE301

ECTS 6.5 | P 30 | A 15 | L 0 | K 15 | ISVU 41107 149703 | Academic year: 2020./2021.

Course groups

Prikaži sve grupe na predmetu

Course lecturers

FILIĆ MIRKO, Associate

Course description

Classification and common characteristics of electric machines. Fundamentals of mechanical energy conversion into electric energy and vice versa. Implementation of conversion. The magnetic circuit of electric machines. Machine models for DC voltages and DC current. Machine models for AC voltages and AC current. Linear current density and magnetomotive force. Magnetomotive force of AC and polyphase excitation. Rotating magnetic field. Developed torque. Operation conditions. Design exercises: introduction into the work of the Electric machines and drives laboratory. DC machine. Design, basic data and measurement of winding resistance. Magnetic curve. AC machine. Design and basic data. Short circuit. Synchronous machine. Basic data and measurement of winding resistance.

Knowledge and skills acquired

Knowledge of theoretical fundamentals, performances and modes of operation for electrical machines.

Teaching methods

Lectures (2 hours per week), auditory exercises (1 hour per week), construction exercises (1 hour per week). Power Point presentations are used in lectures. Students actively participate and are continuously tested in auditory and construction exercises.

Student requirements

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Monitoring of students

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Student assessment

Two revision exams during the semester and an oral exam for students who meet the requirements defined by the Student evalution criteria (points earned in revision exams and grade awarded in design exercises). Other students must take the written and oral exam.

Obligatory literature

1. 1 Mandić, I; Komljenović, V; . Pužar, M. Sinkroni i asinkroni električni strojevi Zagreb: Tehničko veleučilište u Zagrebu, ISNB: 975-953-7048-26-6, 2012.

2. 2 Pyrhonen, Juha; Tapani Jokinen; Hrabovcova, Valeria Design of Rotating Electrical Machines John Wiley & Sons, ISBN: 978-0-470-74008-8, 2009.

3. 3 R. Wolf Osnove električnih strojeva Školska knjiga, Zagreb 1991.

Pretraži literaturu na:

Recommended additional literature

1. 1 L. M. Piotrovskij Električni strojevi Tehnička knjiga, Zagreb 1970.

2. 2 M. Pužar, I. Mandić Osnove električnih strojeva, nastavni materijal na Moodle-u Elektrotehnički fakultet Osijek, 2010.

3. 3 A. Dolenc i dr. Električni strojevi TE/4 JLZ, Zagreb 1973.

Examination methods

Students' evaluation during the course and oral examination for students that satisfy by scoring, written and oral examination for other students.

Course assessment

Conducting university questionnaires on teachers (student-teacher relationship, transparency of assessment criteria, motivation for teaching, teaching clarity, etc.). Conducting Faculty surveys on courses (upon passing the exam, student self-assessment of the adopted learning outcomes and student workload in relation to the number of ECTS credits allocated to activities and courses as a whole).

Overview of course assesment

Learning outcomes
Upon successful completion of the course, students will be able to:

1. interpret the elements necessary for the realisation of electromechanical energy conversion, and recognise and distinguish the types of electric machines with respect to their purpose (i.e. motor or generator)

2. interpret and link different operating principles, machine parts and their function in DC and AC types of electric machines

3. explain magnetic circuit, current covering, flow and rotating magnetic field and calculate magnetic circuit, current covering and flow for DC and multiphase machines

4. interpret and reconstruct the way of developing and calculating induced voltage and torque depending on whether the machine works as a motor or as a generator applicable to all types of electric machines

5. organise and measure electrical and mechanical values in order to determine the main parameters of electric machines and their magnetising curve as well as distinguish the basic structure elements and data of all kinds of electric machines

6. organise the analysis and procedure for testing the basic operating states of electric machines

Aktivnosti studenta: Vidi tablicu aktivnosti