Power System Analysis

Introduction:

This highly informative training course covers the essential elements of power system analysis, both from a theoretical perspective and more importantly, from a practical viewpoint. Methods that are often covered as abstract mathematical procedures, such as phasors, per-unit, and symmetrical components, are presented straightforwardly and understandably. Modeling and analysis are viewed in a real-world sense, not as simply a step-by-step procedure. After completing this training course, you will have an intuitive feel of how the power system behaves and how it needs to be analyzed under both normal and contingency conditions

Targeted Groups:

• Engineers and technicians new to the power industry
• Intermediate-level engineers and technicians working in the planning, design, and operation of power systems
• Professionals involved with the generation, transmission, distribution, or utilization of electric power
• Individuals working on integrating renewable energy resources into the existing power grid
• Practitioners interested in modernizing and optimizing the performance of the power system

Course Objectives:

At the end of this course the participants will be able to:

• Perform three-phase power system calculations using phasor analysis and the per-unit system
• Model key power system components, such as transmission lines, transformers, generators, and loads
• Understand power flow analysis and know the basics of operating a power system
• Use symmetrical component theory and sequence networks to analyze short-circuit faults
• Understand the equal-area criterion for transient stability

Targeted Competencies:

• Phasors, per-unit and three-phase power concepts
• Modeling information for transmission lines, transformers, generators, and loads
• Power flow analysis and system operation
• Short circuit analysis including symmetrical components
• Transient stability analysis

Course Content:
Unit 1: Math Review and System Modeling:

• Time domain and phasor domain
• Phasor math
• Per-unit calculations
• Basic three-phase power calculations
• Transmission line parameter computation
• Modeling transformers, generators, and loads

Unit 2: Power Flow Analysis:

• Components of AC power
• Building the Ybus and Zbus matrices
• Power flow equations
• Solution methods
• Software simulations
• Interpreting power flow results

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

• Load, generation, and area control error (ACE)
• Frequency bias
• Economic dispatch of generation
• Network behavior and contingencies
• Analyzing unbalanced power systems
• Symmetrical component theory

Unit 4: Symmetrical Components and Sequence Networks:

• Development of symmetrical components
• Sequence current behavior
• Detailed delta-wye transformer analysis
• Modeling sequence impedances
• Construction of sequence networks
• Analyzing harmonics as sequence currents

Unit 5: Short Circuit Calculations and Transient Stability:

• Modeling faults with sequence networks
• Short circuit current calculations
• Open circuit current calculations
• Fault current versus incident energy – arc flash hazard
• Power system dynamics
• Equal-area criterion for transient stability