ECE 732 Dynamics and Control of Electric Machines
 

Dynamic behavior of AC electric machines and drive systems; theory of field orientation and vector control for high performance induction and synchronous machines; permanent magnet and reluctance machines and their control; principles of voltage source and current source inverters, and voltage and current regulation methods. 3 credit hours.

 
   

• Prerequisite
 

ECE 453/554 Electric Motor Drives or equivalent, and knowledge of Advanced Mathematics for Engineers and Scientists.


• Course Objectives
 
  • Manifest a working knowledge of the dynamic effects of control in AC electric machines
  • Model  AC machines for analysis and design
  • Calculate the basic performance parameters of AC electric machines and drives, such as response time, parameter variation effects and efficiency
  • Design and analyze torque and speed controllers for AC electric machines
  • Design and analyze voltage and current controllers for AC electric drives
  • Assess the dynamic behavior of AC electric machines and drives
  • Demonstrate  a working knowledge of the emerging AC machine control methods for applications, such as automotive, renewable energy systems, industrial, and consumer products
  • Perform basic assessment and design of an AC electric machine drive system for a given application
  • Determine the requirements of an electric machine and drive for a given application

• Course Topics
 
  • Electric Machine Dynamics - Introduction
  • Reference Frame Transformations
  • Dq Complex Vector Theory
  • Induction Machine dq Modeling
  • Synchronous Machine dq Modeling
  • Synchronous Machine Vector Control – Steady State and Dynamics
  • Induction Machine Vector Control - Steady State and Dynamics
  • Voltage Source Inverters(VSI)
  • PWM  Control of Inverters
  • Direct Torque Control for Induction Machines
  • Current Regulation
  • PM Machines Principles and Control
  • IPM Machine Controls
  • Switched Reluctance Machine Principles and Controls

• Course Requirements
 

The course consists of two 75 minute lectures per week. The grade distribution for the course is given below.

Component

Weight

Details

Mid-Term Exams

20%

One mid-term examination will be administered. The mid-term and the final exams are equally weighted.

Homework

10%

Six to eight homeworks are assigned during the semester.

Simulation Projects

50%

Three computer simulation projects will be assigned. The students submit completed Matlab/Simulink programs and reports. The projects are worth 20%, 20% and 10% for the three assignments.

Final Exam

20%

A non-comprehensive final exam is administered at the end of the semester.


• Textbook
 

Vector Control and Dynamics of AC Drives - D.W. Novotny and T.A. Lipo, Oxford Science Publications, 1996.
Edition: 1st
ISBN: 0-19-856439-2
This textbook is required.

Analysis of Electric MachineryP.C. Krause, O. Wasynczuk and S. D. Sudhoff, IEEE Press, 1994
Edition: 1st
ISBN: 0-7803-1101-9
This textbook is optional.


• Computer and Internet Requirements
 

Computer simulations will be assigned during the course related to the topics covered in the course. Students are expected to have access to Matlab-Simulink software; Matlab-Simulink will be the primary platform for the simulations. The assignments will be collected and graded.

NCSU and Engineering Online have recommended minimum computer specifications. For details, click here.


• Instructor
 

Dr. Iqbal Husain, Professor
Electrical & Computer Engineering
Box 7911
NCSU Campus
Raleigh, NC 27695


Email: iqbal_husain@ncsu.edu