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FSI-RESAcad. year: 2021/2022
1.) Transistor drives with DC motor - the aim is to repeat and consolidate the skills acquired in previous bachelor's courses. Definition of frequency responses of DC motor, inverter and all necessary sensors, synthesis of current and speed control loops.
2.) Simplified EC motor design - Explanation of the simplified procedure for EC motor design, with regard to the possibilities of the semiconductor converter, dimensioning of the converter and a description of its control structure with an overview of the possibilities of its implementation.
3.) Control of drives with EC motors and harmonic PMSM - Description of the design of the synchronous machine with respect to the method of its supply (EC motor / harmonic machine), overview of variants of control algorithms for harmonic machines, methods of speed and position control loops synthesis.
4.) Drives with asynchronous machines – calculation of static characteristics from the substitution scheme, scalar and vector speed control.
5.) Converters for of three-phase machines, types of DC link, active rectifiers - possibilities of realization of converters for three-phase machines, explanation of converters with voltage and current DC link, converter subsystems.
6.) Traction drives with asynchronous motors, specifics of low voltage drives - Example of design of low voltage drive with asynchronous motor, explanation of control algorithm for traction purposes optimized in terms of efficiency.
7.) Drives with thyristor controlled rectifiers, four quadrant connections - Description of connections of all common types of controlled rectifiers with an overview of their common industrial applications. Explanation of the term power stage and control circuits for thyristor controlled rectifiers.
8.) Traction drive with DC machine, combined speed control by armature voltage and excitation - Explanation of the function of combined control with special emphasis on traction applications, synthesis of control loops
9.) Usage of ultracapacitors in electric traction - Description of the possibilities of ultracapacitors with a demonstration of the application of a capacitor bank in the traction system, explanation of control and regulation circuits for ultracapacitors systems.
10.) Position control of servo drives, position and speed sensors in electric drives - Synthesis of speed and position loops of electric drive, description of sensors used in drives.
11.) Drives with switched reluctance motor - Explanation of the principle of reluctance motor, specifics of its use, question of choice of phase number, converters for SRM, control algorithms for SRM.
12.) Stepper motors based drives - overview of all used types of stepper motors, explanation of their control methods, converters for stepper motors, industrial applications of stepper motors.
13.) Interference in high-current electrical equipment - Explanation of the term electromagnetic compatibility, the mechanism of parasitic interference in power electronics equipment, recommendations for the design of interference-resistant equipment.
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The theoretical part is evaluated 50 points and the calculation part 50 points.
Course curriculum
1.) Transistor drives with DC motor
2.) Simplified EC motor design
3.) Control of drives with EC motors and harmonic PMSM
4.) Drives with asynchronous machines
5.) Converters for of three-phase machines, types of DC link, active rectifiers
6.) Traction drives with asynchronous motors, specifics of low voltage drives
7.) Drives with thyristor controlled rectifiers, four quadrant connections
8.) Traction drive with DC machine, combined speed control by armature voltage and excitation
9.) Usage of ultracapacitors in electric traction
10.) Position control of servo drives, position and speed sensors in electric drives
11.) Drives with switched reluctance motor
12.) Stepper motors based drives
13.) Interference in high-current electrical equipment
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