Analysis and Design of Electrical Power Systems

Introduction:

This all-inclusive course in electrical power system analysis and design offers systematic learning of power system analysis with exposure to theory as well as the skills required in practice. Complex concepts such as phasors, per-unit systems, and symmetrical components are simplified for better understanding. The course emphasizes realistic analysis and modeling rather than a step-by-step procedure in design analysis.

The course helps participants gain an understanding and appreciation of the function of power systems, along with the methods and skills to study their behavior under normal and contingency conditions, thus enhancing their knowledge in electrical power systems engineering and design.

Objectives:

At the end of this electric power systems course, participants will be able to:

• Apply the phasor diagram method to analyze three-phase power systems and perform per-unit system calculations
• Statistically model key power system components, including transmission lines, transformers, generators, and loads
• Describe power flow methods and the basics of power system operation
• Examine fault problems such as short circuits, using sequence circuits and symmetrical analysis
• Apply the equal area rule for the analysis of transient stability

Training Methodology:

• Lectures
• Case studies
• Hands-on exercises
• Group discussions
• Problem-solving sessions
• Real-world examples

Course Outline:

Unit 1: Math Review and System Modeling

• Time domain and phasor domain
• Phasor math
• Per-unit calculations
• Primary 3-phase power system calculations
• Determining transmission line components
• Simulation of transformers, generators, and loads

Unit 2: Power System Load Flow Studies

• AC power system facets
• Ybus and Zbus matrix formation
• Flow of power equations
• Methods of solutions
• Computer analysis
• Power flow analysis and its outcome

Unit 3: Generation Control, Economic Dispatching, and Unbalanced System Analysis

• Load, generation, and Area Control Error (ACE)
• Frequency bias
• Economic generation dispatch
• Network operation and abnormal situations
• Studies of unbalanced systems
• The use of symmetrical components

Unit 4: Symmetrical Components and Sequence Networks

• The evolution of symmetrical components
• Sequence current effects
• Delta-wye transformer detailed analysis
• Representation of sequence impedances
• Steps for building sequence networks
• Sequence currents: Harmonics

Unit 5: Short Circuit Expectations including Short-Circuit Studies and Transient Stability

• Using sequence networks to represent faults
• Series system short-circuit current computation
• Open circuit system current computation
• Fault/current incident energy – arc flash potential
• The dynamics of a power system
• Conditions for transient stability using the equal area method