## Power System Analysis

ABSTRACT

The course provides students with concepts of power system analysis, with structures and operation modes of electrical power system, with ability to formulate operating models of electrical objectives, and with algebraic analysis models and methods on power flows, network modeling, fault analysis, power system dynamics and stability.

Course goal and objectives:

• to formulate operating models for the electrical objectives;
• to solve power flow problems for small- or medium-scaled electrical power systems;
• to analyse fault with unbalanced and short-circuit, power system dynamics and stability.

INTENDED LEARNING OUTCOMES

• to be able to explain structures and operation modes of electrical power systems
• to be able to formulate operating models for the electrical power equipment with pre-set control output, with/without boundary conditions
• to be able to solve power flow problems for small- or medium-size electrical power systems
• to be able to analyze fault, power system dynamics and stability
• to be able to solve problems in power flow analysis
• to be able to work effectively in a team and demonstrate presentation skills through oral presentation

COURSE OUTLINE

Chapter 1: Introductory

1.1 Power Flow Analysis
1.2 Fault Current Analysis
1.3 Dynamics and Stability in Power Systems
Lab exercise: Using Matlab or ETAP, create a given power system or open a given power system to show power flow, faults, and stability.

Chapter 2: Network Models

2.1 Generators and Power Sources (PVs, wind turbines, etc.)
2.2 Transformers
2.3 Lines and Cables
2.4 Shunt Elements (VAR compensators and Energy storage)
2.6 FACTS Devices
Lab exercise: Using Matlab or ETAP, test the responses of devices mentioned in this chapter.

Chapter 3: Active and Reactive Power Flows

3.1 AC and DC Transmission Lines
3.2 In-phase Transformer
3.3 Phase-Shifting Transformer
3.4 Unified Power Flow Equations
Lab exercise: Using Matlab or ETAP,show P and Q in systems in chapter 3

Chapter 4: Power Flow Problems

4.1 Basic Bus Types
4.2 Equality and Inequality Constraints
4.3 Problem Solvability
4.4 Solution by Gauss-Seidel Iteration
4.5 Newton-Raphson Method and Application to the Power Flow Equations
4.6 P θ − QU Decoupling
4.7 Approximate Solutions of the Power Flow Problem
Lab exercise: Write Matlab code to solve problems in this chapter

Chapter 5: Fault Analysis in SES

5.1 Transients on a transmission line
5.2 Short circuit of a synchronous machine
5.3 Algorithms for short circuit studies
Lab exercise: Using Matlab or ETAP for fault analysis

Chapter 6: Power system stability

6.1 Classification and Definition
6.2 Models of Machines and sources
6.3 Swing Equation
6.4 Voltage Stability
Lab exercise: Using Matlab or ETAP for analysis of power system stability.

LIST OF REQUIRED LABORATORY EQUIPMENT
1. ETAP or Matlab software

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