Course detail

Production of Electrical Machines 1

FEKT-MKC-SS1Acad. year: 2024/2025

Magnetic field of m-phase winding, winding factors for fundamental and other harmonics of magnetic field, three-phase windings, parasitic torques and additional losses caused by harmonic components of the magnetic field, electromagnetic design of an induction motor and synchronous motor with permanent magnets, bearings of electric machines.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Entry knowledge

Student should be able to
- differentiate functions of one and more variables,
- integrate functions of one variable,
- compute a freguency spectrum of continuos periodic signal,
- explain electromagnetic basic principles, solve DC, AC electric circuits with lumped parameters and magnetic circuits,
- describe the construction of induction motor, synchronous motor and DC motor,
- describe motors principle according to their electrical diagram,
- describe, modify and apply the basic design approach of magnetic circuit and winding to the permanent magnet DC motor and BLDC motor,
- calculate the parameters of the permanent magnet DC motor, BLDC motor (steady-state operation),
- draw and describe the waveform of magnetic flux density in the air-gap of permanent magnet DC motor, BLDC motor; sketch the slotting effect and the armature reaction effect,
- prepare 2D FEM model of the permanent magnet DC motor, BLDC motor under steady-state operation.

Rules for evaluation and completion of the course

Control test - maximum 10 points; minimum 3 points
Credit test - maximum 15 points; minimum 5 points
Final Exam - maximum 75 points; to pass the exam it is necessary to gain at least 35 points. 
Specification of controlled education, way of implementation of the guarantor's regulation updated for every subject.

Aims

Deepening the knowledge of design of electric machines with a focus on winding analysis and electromagnetic calculations.

Graduate of the course is able to
- describe the magnetic field in the air-gap generated by the coil and m-phase winding,
- calculate the winding factors for the first and other harmonics of magnetic field,
- design the single and double-layer windings, distributed and concentrated windings,
- describe the principle of parasitic torques and torque pulsation,
- describe the additional losses caused by harmonic components of the magnetic field,
- perform the electromagnetic design of an induction motor,
- perform the electromagnetic design of synchronous motor with permanent magnets,
- describe the bearings of electric machines, including magnetic bearings,
- prepare 2D FEM model of the induction motor and permanent magnet synchronous motor.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

BRÁZDA, M., STAŇA, R.: Výpočet asynchronního motoru. Brno: Výzkumný a vývojový ústav elektrických strojů točivých, 1973, 222 s. (CS)
HELLER, B., HAMATA, V.: Přídavná pole, síly a ztráty v asynchronním stroji. 1. vyd. Praha: Československá akademie věd, 1961, 202 s. (CS)
PETROV, G.,N.: Elektrické stroje 2. Academia, Praha 1982 (CS)
Philip B.: Electrical Steels for Rotating Machines. Institution of Engineering and Technology, 2002. ISBN: 978-0852969809 (CS)

Recommended reading

BOLDEA, I., NASAR, S.,A.: The Induction Machine Handbook. Boca Raton: CRC Press LLC, 2002. 949 p. ISBN 0-8493-0004-5 (EN)
CIGÁNEK,J.: Stavba elektrických strojů, SNTL 1958 (CS)
KOPYLOV,I.,P. a kol.: Stavba elektrických strojů. SNTL, Praha 1988, 688 stran, typové číslo L25-C3-IV-41f/58667, první vydání (CS)
Pyrhonen J., Jokinen T., Hrabovcova V.: Design of Rotating Electrical Machines. Wiley; 2nd edition, 2013. ISBN: 978-1118581575 (EN)

Classification of course in study plans

  • Programme MPC-SVE Master's 1 year of study, summer semester, compulsory

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

Fundamentals seminar

13 hod., optionally

Teacher / Lecturer

Exercise in computer lab

13 hod., optionally

Teacher / Lecturer