CURSO: ACCIONAMIENTOS ELÉCTRICOS
TRADUCCIÓN: DYNAMICS AND CONTROL OF ELECTRICAL DRIVES
SIGLA: IEE2224
CREDITOS: 10
MODULOS: 02
CARACTER: OPTATIVO DE PROFUNDIZACION
TIPO: CÁTEDRA
CALIFICACIÓN: ESTÁNDAR
PALABRAS CLAVE:Accionamientos, Motores Eléctricos, Inversores, Control, Electrónica de Potencia, Control vectorial, Electric Drives, Electric Motors, Inverters, Control, Power Electronics, Field Oriented Control, FOC,
NIVEL FORMATIVO: PREGRADO
I. DESCRIPTION
The course has the objective of describing the field oriented control techniques for electric motors and generators. Design and safety criteria used in the power electronics industry will be addressed, both from the software and
hardware point of view. The course evaluation consists in a guided project, where an electric machine drive is implemented. The development of the project will allow the students to apply the control theory concepts and electric
machine dynamic equations learnt during the course for making a functional final product. THIS COURSE IS GIVEN IN ENGLISH LANGUAGE
II. OBJETCTIVES
General xxx
1. Understand the power electronics hardware components.
2. Determine the electrical and thermal requirements which are fundamental for the correct design of an electric drive.
3. Understand and model the field oriented control components for driving a synchronous and asynchronous machines.
4. Design and implement the field oriented control for a specific electric machine.
5. Know different industrial applications for the field oriented control of electric machines.
6. Enhance technical vocabulary, as well as improving the capacity of explaining a logical process in English.
Specific
1. Detect the functionality of the hardware components, as well as their critical operation points and physical effects these imply.
2. Manage thermodynamic and electrical concepts to determine the required thermal dissipation.
3. Model the system diagram for an electric drive and develop analysis.
4. Usage of specialized software to translate the theoretical design into a functional algorithm for a microcontroller.
III. CONTENTS
1. Introduction and general aspects of electrical drives
1.1 History and applications
1.2 Types of electrical drives
1.3 Current, torque and speed closed loops
1.4 PI Controller, Feedforward, Anti-windup
1.5 Block diagrams, stability analysis and cut frequency
1.6 Example: Control loop of a separate excitation DC motor.
2. Coordinate System and data acquisition
2.1 Clarke Park transformation
2.2 Angle and speed transducers: Encoders and resolvers
2.3 Current, voltage and magnetic flux transducers using Hall effect
3. Field Oriented Control of a Permanent Magnet Synchronous Motor
3.1 Constructive considerations and machine structure
3.2 Direct and Quadrature axis definition
3.3 Dynamic equations of the synchronous machine
3.4 Control strategies given the dynamic characteristics.
3.5 Optimal operation points: MTPA, MTPV
3.6 Field weakening region
4. Field Oriented Control of an Asynchronous Motor
4.1 Constructive considerations and machine structure
4.2 Direct and Quadrature axis definition
4.3 Dynamic equations of the asynchronous machine
4.4 Control strategies given the dynamic characteristics.
4.5 Optimal operation points: MTPA, MTPV
4.6 Field weakening region
4.7 Rotor flux observers and its implementation
5. Inverters
5.1 Inverter components and driver circuits.
5.2 Optocouplers, zenner diodes, snubber, deadtimes, parasite inductances.
5.3 Power semiconductor transition (Turn-on y Turn-off)
5.4 Transistor and power diode dimensioning: Safe Operating Area, reverse recovery y SiC technology.
5.5 Losses and efficiency of the power semiconductors, thermal dissipation design, juncture-casing thermal models.
6. Embedded software y security aspects
6.1 Microcontrollers: characteristics and most used types
6.2 Software granularity, task overrun, watchdog timers
6.3 Analog inputs and outputs: filter design and digital aliasing
6.4 HW Security: Comparators and protections by CPLD
6.5 SW Security: Deratings, limitations, MISRA rules
7. Final considerations
7.1 Comparison among the different machine types and their applications
IV. METODOLOGY
- Lectures.
- Guided Group Project
- Homework focused in group Project subsystems
- Short Quizzes
V. EVALUATION
- Homework Average 20%
- Quizzes Average 20%
- First Project Delivery 20%
- Second Project Delivery 40%
VI. BIBLIOGRAPHY
Mohan, Ned Advanced Electric Drives: Analysis, Control, and Modeling Using MATLAB / Simulink. New Jersey, John Wiley & Sons Inc, 2014.
Ponce, Pedro Máquinas eléctricas y técnicas modernas de control, México D.F, Alfaomega, 2008.
Schröder, Dierk Elektrische Antriebe - Regelung von Antriebssystemen. Berlin, Springer, 2001.
Schröder, Dierk Leistungselektronische Schaltungen: Funktion, Auslegung und Anwendung. Berlin, Springer-Lehrbuch, 2012.
Vukosavic, Slobodan Electrical Machines (Power Electronics and Power Systems). Berlin, Springer, 2001.
Wildi, Theodore Electrical Machines, Drives and Power Systems (6th Edition), New Jersey, Prentice Hall, 2005.
PONTIFICIA UNIVERSIDAD CATÓLICA DE CHILE
ESCUELA DE INGENIERÍA / ACTUALIZADO ABRIL 2021