Course detail
AC drives
FEKT-MSPOAcad. year: 2015/2016
Controlled drives with an induction motor: frequency response of a controlled induction motor, static characteristics of a scalar and vector control, synthesis of a speed control loop. Controlled drives with a synchronous motor, sratic characteristics of a vector control, structures of controlled circuits, supply of motors from a voltage or current source.
Supervisor
Learning outcomes of the course unit
Passed student the course is able to
- describe and explain way and condition of variables description using space vectors in AC electric machines
- explain Clark and Park transform and their meaning. To define significant coordination frames
- explain how power and torque is computed using space vectors
- describe and explain induction machine dynamic model and its transformation in to various coordinate systems
- describe and explain synchronous machine model. Modify it for various variants of synchronous machine.
- describe and explain common method of scalar control of induction machine
- describe and explain common method of field oriented control of induction machine
- describe and explain common method of field oriented control of synchronous machine
- describe three-phase transistor inverter model. Define its inputs and outputs gain and transfer function.
In laboratory exercises is validated to:
- realize dynamic models of AC machines
- realize dynamic models of control methods of ac machines
- determine transfer functions of controlled systems for particular control methods
Prerequisites
Student which enter the course should be able to
- apply Laplace transform
- apply complex numbers
- apply principles of integral and derivation computation
- explain physical and electrical principles related to electromechanical energy transformation
- apply continuous control theory
- realize models in MATLAB – SIMULINK environment
Co-requisites
Not applicable.
Recommended optional programme components
Not applicable.
Recommended or required reading
Šubrt J.; Střídavé regulační pohony II (CS)
Caha, Černý: Elektrické pohony, SNTL (CS)
Leonhard: Control of Electrical Drives, Springer (EN)
Bose: Power Electronics and Variable Frequency Drives, IEEE Press (EN)
Planned learning activities and teaching methods
Techning methods include lectures, computer laboratories and practical laboratories. Course is taking advantage of e-learning (Moodle) system.
Assesment methods and criteria linked to learning outcomes
Requirements for completion of a course are specified by a regulation issued by the lecturer responsible for the course and updated for every.
Language of instruction
Czech
Work placements
Not applicable.
Course curriculum
Three phase power systes, basic principles and circuities
Space vector, Park and Clark transform
Three-phase machines dynamic models fundamentals, parameters of models
Induction machine model
Characteristics of induction machine
Synchronous machines model
Characteristics of synchronous machine
Scalar control methods of induction drive
Field oriented control methods of induction drive
Field oriented control methods of synchronous drive
Threephase transistor inverter model, Methods of PWM
Aims
To acquaint students with theory of AC controlled drives
Specification of controlled education, way of implementation and compensation for absences
Computer laboratory is compulsory
Type of course unit
eLearning
eLearning: currently opened course