Small and Special Electrical Machines

Објавено: June 28, 2022
1. Course Title Small and Special Electrical Machines
2. Code 4ФЕИТ02З014
3. Study program ЕАОИЕ
4. Organizer of the study program (unit, institute, department) Faculty of Electrical Engineering and Information Technologies
5. Degree (first, second, third cycle) First cycle
6. Academic year/semester IV/7 7. Number of ECTS credits 6
8. Lecturer D-r Goga Cvetkovski
9. Course Prerequisites Passed: Fundamentals of Electric Circuits
10. Course Goals (acquired competencies): This course is an advanced course on small and special electric machines with special emphasis on their experimental analysis. The student will gain wider and deepened knowledge about their specifications, structural realization and working principles, as well as their application. The student will be able to perform an analysis on small and special electric machines, as well as their integration in novel automated industrial processes in industry, homes and other commercial premises.
11. Course Syllabus: Introduction. Classification of small machines. Single phase induction machines: principle of operation, revolving field, two phase systems. Types of single phase induction machines. Equivalent circuits and power flow diagrams of single phase induction machines (SFIM). Capacitor induction motor. Shaded pole induction motor. Small synchronous motors (SSM): operating principles, classification. SSM with permanent magnets. Variable reluctance SSM. Hysteresis SSM. Single phase universal commutator motors with series excitation. Small and special electrical machines applied in automated systems – Servomotors: operating principles, classification and application. Types of control. DC and induction servomotors. Stepper motors: classification and operating principles. Tacho-generators: classification, operating regimes, errors and application. Selsynes. Linear motors: classification, characteristics, operating regimes. Micro and nano technologies for realisation of electromagnetic and electromechanical systems.
12. Learning methods: Interactive lectures, laboratory exercises, and study in electronic environment.
13. Total number of course hours 3 + 0 + 2 + 0
14. Distribution of course hours 180
15. Forms of teaching 15.1. Lectures-theoretical teaching 45
15.2. Exercises (laboratory, practice classes), seminars, teamwork 30
16. Other course activities 16.1. Projects, seminar papers 0
16.2. Individual tasks 15
16.3. Homework and self-learning 90
17. Grading 17.1. Exams 0
17.2. Seminar work/project (presentation: written and oral) 25
17.3. Activity and participation 0
17.4. Final exam 75
18. Grading criteria (points) up to 50 points 5 (five) (F)
from 51to 60 points 6 (six) (E)
from 61to 70 points 7 (seven) (D)
from 71to 80 points 8 (eight) (C)
from 81to 90 points 9 (nine) (B)
from 91to 100 points 10 (ten) (A)
19. Conditions for acquiring teacher’s signature and for taking final exam Realized activities from 15.1 and 15.2.
20. Forms of assessment During the semester two partial exams are encountered, with duration of 120 minutes each. Those students who will not get enough points to pass the exam can take the final exam in the in the pre-defined exam sessions, with duration of 120 minutes. The final grade is formed by adding the points from the two partial exams or the final exam and the laboratory exercises.
21. Language Macedonian and English
22. Method of monitoring of teaching quality Internal evaluation and surveys.
23. Literature
23.1. Required Literature
No. Author Title Publisher Year
1 Lidija Petkovska Micromachines FEEIT 1995
2 Goga Cvetkovski Instructions for Laboratory Exercises for Small and Special Electrical Machines 2020
3 Goga Cvetkovski Linear Motors (lecture material) 2020
23.2. Additional Literature
No. Author Title Publisher Year
1 Wiliam Yeadon Alan Yeadon Handbook of Small Electric Motors Mc Graw Hill 2001
2 Jacek Gieras Zbigniew Piech Linear Synchronous Motors CRC Press 2000
3 Sergey Edward Lysevski MEMS and NEMS-Systems, Devices and Structures CRC Press 2000