Power systems analysis [electronic resource] / P. S. R. Murty
- Author:
- Murty, P. S. R.
- Published:
- [Place of publication not identified] : Butterworth-Heinemann, 2017.
- Edition:
- 2nd edition.
- Physical Description:
- 1 online resource
Access Online
- Contents:
- Machine generated contents note: ch. 1 Introduction -- 1.1.The Electrical Power System -- 1.2.Network Models -- 1.3.Faults and Analysis -- 1.4.The Primitive Network -- 1.5.Power System Stability -- 1.6.Deregulation -- 1.7.Renewable Energy Resources -- ch. 2 Graph Theory -- 2.1.Introduction -- 2.2.Definitions -- 2.3.Tree and Cotree -- 2.4.Basic Loops -- 2.5.Cut-Set -- 2.6.Basic Cut-Sets -- Worked Examples -- Problems -- Questions -- ch. 3 Incidence Matrices -- 3.1.Element-Node Incidence Matrix -- 3.2.Bus Incidence Matrix -- 3.3.Branch-Path Incidence Matrix K -- 3.4.Basic Cut-Set Incidence Matrix -- 3.5.Augmented Cut-Set Incidence Matrix B -- 3.6.Basic Loop Incidence Matrix -- 3.7.Augmented Loop Incidence Matrix -- 3.8.Network Performance Equations -- Worked Examples -- Questions -- Problems -- ch. 4 Network Matrices -- 4.1.Introduction -- 4.2.Network Matrices -- 4.2.1.Network Matrices by Singular Transformations -- 4.2.2.Network Matrices by Nonsingular Transformation -- 4.3.Bus Admittance Matrix by Direct Inspection -- Worked Examples -- Questions -- Problems -- ch. 5 Building of Network Matrices -- 5.1.Introduction -- 5.2.Partial Network -- 5.3.Addition of a Branch -- 5.3.1.Calculation of Mutual Impedances -- 5.3.2.Calculation of Self-Impedance of Added Branch Zab -- 5.3.3.Special Cases -- 5.4.Addition of a Link -- 5.4.1.Calculation of Mutual Impedances -- 5.4.2.Computation of Self-Impedance -- 5.4.3.Removal of Elements or Changes in Element -- 5.5.Removal or Change in Impedance of Elements with Mutual Impedance -- Worked Examples -- Problems -- Questions -- ch. 6 Symmetrical Components -- 6.1.The Operator "a" -- 6.2.Symmetrical Components of Unsymmetrical Phases -- 6.3.Power in Sequence Components -- 6.4.Unitary Transformation for Power Invariance -- ch. 7 Three-Phase Networks -- 7.1.Three-Phase Network Element Representation -- 7.1.1.Stationary Network Element -- 7.1.2.Rotating Network Element -- 7.1.3.Performance Relations for Primitive Three-Phase Network Element -- 7.2.Three-Phase Balanced Network Elements -- 7.2.1.Balanced Excitation -- 7.2.2.Transformation Matrices -- 7.3.Three-Phase Impedance Networks -- 7.3.1.Incidence and Network Matrices for Three-Phase Networks -- 7.3.2.Algorithm for Three-Phase Bus Impedance Matrix -- Summary of the Formulae -- Worked Examples -- Questions -- Problems -- ch. 8 Synchronous Machine -- 8.1.The Two-Axis Model of Synchronous Machine -- 8.2.Derivation of Park's Two-Axis Model -- 8.3.Synchronous Machine Analysis -- 8.3.1.Voltage Relations---Stator or Armature -- 8.3.2.Flux Linkage Relations -- 8.3.3.Inductance Relations -- 8.3.4.Flux Linkage Equations -- 8.4.The Transformations -- 8.5.Stator Voltage Equations -- 8.6.Steady-State Equation -- 8.7.Steady-State Vector Diagram -- 8.8.Reactances -- 8.9.Equivalent Circuits and Phasor Diagrams -- 8.9.1.Model for Transient Stability -- 8.10.Transient State Phasor Diagram -- 8.11.Power Relations -- 8.12.Synchronous Machine Connected Through an External Reactance -- Worked Examples -- Questions -- Problems -- ch. 9 Lines and Loads -- 9.1.Lines -- 9.1.1.Short Lines -- 9.1.2.Medium Lines -- 9.1.3.Long Lines -- 9.2.Transformers -- 9.2.1.Transformer with Nominal Turns Ratio -- 9.2.2.Phase Shifting Transformers -- 9.3.Load Modeling -- 9.3.1.Constant Current Model -- 9.3.2.Constant Impedance Model -- 9.3.3.Constant Power Model -- 9.4.Composite Load -- 9.4.1.Dynamic Characteristics -- 9.5.Induction Machine Modeling -- 9.6.Model with Mechanical Transients -- 9.6.1.Power Torque and Slip -- 9.6.2.Reactive Power and Slip -- 9.6.3.Synchronous Motor -- 9.7.Rectifiers and Inverter Loads -- 9.7.1.Static Load Modeling for Load Flow Studies -- 9.7.2.Voltage Dependence of Equivalent Loads -- 9.7.3.Derivation for Equivalent Load Powers -- Worked Examples -- Questions -- Problems -- ch. 10 Power Flow Studies -- 10.1.Necessity for Power Flow Studies -- 10.2.Conditions for Successful Operation of a Power System -- 10.3.The Power Flow Equations -- 10.4.Classification of Buses -- 10.5.Bus Admittance Formation -- 10.6.System Model for Load Flow Studies -- 10.7.Gauss--Seidel Method -- 10.8.Gauss--Seidel Iterative Method -- 10.8.1.Acceleration Factor -- 10.8.2.Treatment of a PV Bus -- 10.9.Newton--Raphson Method -- 10.9.1.Rectangular Coordinates Method -- 10.9.2.The Polar Coordinates Method -- 10.10.Sparsity of Network Admittance Matrices -- 10.11.Triangular Decomposition -- 10.12.Optimal Ordering -- 10.13.Decoupled Methods -- 10.14.Fast Decoupled Methods -- 10.15.Load Flow Solution Using Z-Bus -- 10.15.1.Bus Impedance Formation -- 10.15.2.Addition of a Line to the Reference Bus -- 10.15.3.Addition of a Radial Line and New Bus -- 10.15.4.Addition of a Loop Closing Two Existing Buses in the System -- 10.15.5.Gauss-Seidel Method Using Z-Bus for Load Flow Solution -- 10.16.Convergence Characteristics -- 10.17.Comparison of Various Methods for Power Flow Solution -- Worked Examples -- Problems -- Questions -- ch. 11 Short Circuit Analysis -- 11.1.Per Unit Quantities -- 11.2.Advantages of Per Unit System -- 11.3.Three-Phase Short Circuits -- 11.4.Reactance Diagrams -- 11.5.Percentage Values -- 11.6.Short Circuit kVA -- 11.7.Importance of Short Circuit Currents -- 11.8.Analysis of R--L Circuit -- 11.9.Three-Phase Short Circuit on Unloaded Synchronous Generator -- 11.10.Effect of Load Current or Prefault Current -- 11.11.Reactors -- 11.11.1.Construction of Reactors -- 11.11.2.Classification of Reactors -- Worked Examples -- Problems -- Questions -- ch. 12 Unbalanced Fault Analysis -- 12.1.Sequence Impedances -- 12.2.Balanced Star Connected Load -- 12.3.Transmission Lines -- 12.4.Sequence Impedances of Transformer -- 12.5.Sequence Reactances of Synchronous Machine -- 12.6.Sequence Networks of Synchronous Machines -- 12.6.1.Positive Sequence Network -- 12.6.2.Negative Sequence Network -- 12.6.3.Zero Sequence Network -- 12.7.Unsymmetrical Faults -- 12.8.Assumptions for System Representation -- 12.9.Unsymmetrical Faults on an Unloaded Generator -- 12.10.Line-to-Line Fault -- 12.11.Double Line-to-Ground Fault -- 12.12.Single Line-to-Ground Fault with Fault Impedance -- 12.13.Line-to-Line Fault with Fault Impedance -- 12.14.Double Line-to-Ground Fault With Fault Impedance -- Worked Examples -- Problems -- Questions -- ch. 13 Power System Stability -- 13.1.Elementary Concepts -- 13.2.Illustration of Steady State Stability Concept -- 13.3.Methods for Improcessing Steady State Stability Limit -- 13.4.Synchronizing Power Coefficient -- 13.5.Short Circuit Ratio and Excitation System -- 13.6.Transient Stability -- 13.7.Stability of a Single Machine Connected to Infinite Bus -- 13.8.The Swing Equation -- 13.9.Equal Area Criterion and Swing Equation -- 13.10.Transient Stability Limit -- 13.11.Frequency of Oscillations -- 13.12.Critical Clearing Time and Critical Clearing Angle -- 13.13.Fault on a Double-Circuit Line -- 13.14.Transient Stability When Power Is Transmitted During the Fault -- 13.15.Fault Clearance and Reclosure in Double-Circuit System -- 13.16.First Swing Stability -- 13.17.Solution to Swing Equation Step-by-Step Method -- 13.18.Factors Affecting Transient Stability -- 13.18.1.Effect of Voltage Regulator -- 13.19.Excitation System and the Stability Problem -- 13.20.Dynamic Stability -- 13.20.1.Power System Stabilizer -- 13.21.Small Disturbance Analysis -- 13.22.Node Elimination Methods -- 13.23.Other Methods for Solution of Swing Equation -- 13.23.1.Modified Euler's Method -- Worked Examples -- Problems -- Questions.
- Subject(s):
- ISBN:
- 9780081012345 (electronic bk.)
0081012349 (electronic bk.)
0081011113
9780081011119
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