80220132 (FACTS/DFACTS: Principles and Applications)

Course Name: FACTS/DFACTS: Principles and Applications

Course Number: 80220132

Program: Graduate program

Type: Elective

Credits: 2

Term Offered: Fall

Prerequisite(s): Power System Stability and Control, Power Electronics

Instructor(s): Xie, Xiaorong, Liu Wenhua


Xiaorong Xie and Qirong Jiang, Flexible AC Transmission Systems:Principles and Applications, Tsinghua University Press, 2004.


Narain G. Hingorani and Laszlo Gyugyi, Understanding FACTS: Concepts and Technology of Flexible AC Transmission Systems, IEEE Press, 2000.

Yong Hua Song and Allan T Johns, Flexible AC Transmission System (FACTS), IEE Press, 1999.

Prabha Kundur, Power System Stability and Control, McGrawHill, 2000.

Ned Mohan, Tore M. Undeland and William P. Robbins, Power Electronics: Converters, Applications and Design, John Wiley & Sons, 2003.

Course Description:

The technology of Flexible AC Transmission Systems (or FACTS) and its very significant long-term benefits are now recognized on a worldwide basis. As part of graduate program, this course focuses on the basic principles of FACTS and its applications in transmission/distribution systems. It helps students to understand the theoretical background, key technologies, functional mechanism and engineering applications of FACTS/FACTS controllers.

Course Objectives and Outcomes:

Numbers in brackets are linked to department educational outcomes.

1.Students are required to understand the basic principles of FACTS and its various controllers. [1, 3]

2.Students are required to gain an ability to design, evaluate and apply (D)FACTS controller to meet desired needs such as stability improvement and power quality enhancement. [2, 3, 6]

3.Students could get familiar with the process of scientific research and paper writing. [5, 6, 7, 10, 11]

4.Students could be capable of using the cutting-edge FACTS techniques to solve practical problems of modern power engineering. [5, 10, 11]

5.Students could learn how multi-crossed disciplines (power electronics, information, control, computer and etc.) motivate the research and development of FACTS technology. [4, 9]

Course Topics:

1.Brief introduction to Flexible AC Transmission Systems (FACTS)

2.Power electronics background: unit, circuit and equipment

3.Shunt FACTS controllers: from SVC to STATCOM

4.Modeling and control of Industrial STATCOM: a Case Study

5.Series FACTS controllers: From TCSC to SSSC

6.Modeling and control of industrial TCSC: a case study

7.Series compensation vs. subsynchronous resonance, N.G. Hingorani SSR Damper

8.Composite FACTS controllers with emphasis on UPFC

9.Other FACTS controllers

10.Brief introduction to power quality and DFACTS

11.Power quality (DFACTS) controllers and their applications

Experiment(s): Numerical experiments, which is the entitled as projects as follows.



 A comparative study on the relationship between FACTS and HVDC in the respects of history, technological characteristics, applications and development trend.

Circuit Design and Simulation Study on a High-voltage (35kV) and Large-Capacity (100MVA) Converter

 Designing of a high-voltage (35kV) and large-capacity (100MVA) converter and verification of its performance with EMT simulation study

Comparative Studies of Stability Improvement with SVC, STATCOM, TCSC and SSSC

 Comparing the ability of SVC, STATCOM, TCSC and SSSC to improving system stability via a simple two-machine transmission system

A survey of power quality problems present in railway electric supply system

 An investigation into the various power quality problems existing in a real industrial electric supply system and the corresponding ways to solving these problems

Term research project

 Utilize FACTS/DFACTS controllers to solve engineering problems in transmission/distribution systems

Course Assessment:

Grading Policy of the Course:

Classroom interaction (10%);

Assignment (30%);

Final project report or final exam (60%).