Introduction to Electric Power Systems - Course Overview

Demonstrative Video


Power Systems Course Introduction

  • Branch of electrical engineering where we study in depth for its design, operation, maintenance, and analysis.

  • Generation, transmission and distribution of electrical energy form a huge complex system termed as Electric Power System.

  • Contributed phenomenal advances to human kind over past centuries
    \(\checkmark\) Electrical power is somewhat like air we breathe
    \(\checkmark\) We think of it only when it is missing


Reference Text Books

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Contents Overview

  • Chapter-1: Inductance and Resistance of TL
  • Chapter-2: Capacitance of Transmission Lines
  • Chapter-3: PS Components & Representation
  • Chapter-4: Characteristics & Performance of TL
  • Chapter-5: Load Flow Studies
  • Chapter-6: Symmetrical Fault Analysis
  • Chapter-7: Symmetrical Components
  • Chapter-8: Unsymmetrical Fault Analysis
  • Chapter-9: Power System Stability
  • Chapter-10: Power System Transients

INDUCTANCE & RESISTANCE OF TL:

  • Definition of Inductance and Calculation

  • Flux linkages of an Isolated Currentcarrying Conductor

  • Inductance of a Singlephase Twowire Line

  • Types of Conductors

  • Flux Linkages of One Conductor in Group

  • Inductance of Composite Conductor Lines

  • Inductance of \(3-\Phi\) lines

  • DoubleCircuit \(3-\Phi\) lines

  • Bundled Conductors

  • Resistance

  • Skin and Proximity effects

  • Magnetic field Induction


CAPACITANCE OF TRANSMISSION LINES:

  • Electric field of a long straight conductor

  • Potential diff between conductors of a group of parallel conductors

  • Capacitance of a 2-wire line

  • Capacitance of a \(3-\Phi\) line with equilateral spacing

  • Capacitance of a \(3-\Phi\) line with Unsymmetrical spacing

  • Effect of earth on TL capacitance

  • Method of GMD

  • Bundled Conductors

  • Electrostatic Induction


POWER SYSTEM COMPONENTS & REPRESENTATION:

  • \(1-\Phi\) representation of a balanced \(3-\Phi\) networks

  • Oneline diagram

  • Impedance or Reactance diagram

  • PerUnit (PU) system

  • Complex power

  • Steadystate model of Synchronous Machine

  • Power Transformer

  • Transmission of Electric Power

  • System protection

  • Representation of Loads


CHARACTERISTICS & PERFORMANCE OF POWER TL:

  • Short Transmission Line

  • Medium Transmission Line

  • Long Transmission Line

  • Equivalent Circuit of a Long Line

  • Interpretation of the Long Line Equations

  • Ferranti Effect

  • Tuned Power Lines

  • Power flow through a TL

  • Methods of Voltage Control


LOAD FLOW STUDIES:

  • Network Model Formulation

  • Formulation of \(Y_{BUS}\)

  • Load Flow Problem

  • GaussSiedel Method

  • NewtonRaphson Method

  • Decoupled Load Flow Studies

  • Comparison of Load Flow Studies


SYMMETRICAL FAULT ANALYSIS:

  • Transients on a TL

  • Synchronous Machine ShortCircuit (on No Load)

  • ShortCircuit of Loaded Synchronous Machine

  • Selection of Circuit Breakers

  • Algorithm for ShortCircuit Studies

  • \(Z_{BUS}\) formulation


SYMMETRICAL COMPONENTS:

  • Symmetrical Component Transformation

  • PhaseShift in \(Y\Delta\) Transformers

  • Sequence Impedance of TL

  • Sequence Impedance and Sequence Network of PS

  • Sequence Impedance and Network of Syn Machine

  • Sequence Impedance of TL

  • Sequence Impedance of Transformers

  • Construction of Sequence Networks of PS


UNSYMMETRICAL FAULT ANALYSIS:

  • Symmetrical Component Analysis of Unsymm Faults

  • Single LinetoGround (LG) Fault

  • LinetoLine (LL) Fault

  • Double LinetoGround (LLG) Fault

  • Open Conductor Faults

  • \(Z_{BUS}\) matrix method for Unsymm Shunt Fault analysis


POWER SYSTEM STABILITY:

  • Dynamics of a Synchronous Machines

  • Power Angle Equation

  • Node Elimination Technique

  • Simple Systems

  • Steady State Stability

  • Transient Stability

  • Equal Area Criterion

  • Numerical Solution of Swing Equation

  • Multimachine Stability

  • Factors affecting Transient Stability


POWER SYSTEM TRANSIENTS:

  • Types of System Transients

  • Travelling Waves and Surge Propagation

  • Generation of Over voltages on TL

  • Protection of TL against lightning

  • Protection of PS equipment against Surges

  • Insulation Coordination