http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Electromagnetic analysis and condition monitoring of synchronous generators
1 online resource (xx, 674 pages) : illustrations (some color).
"The synchronous generator or alternator is an electrical machine which converts the mechanical power from a prime mover into an AC electrical power at a particular voltage and frequency. The synchronous motor always runs at the constant speed called synchronous speed. The generator works on the principle of Faraday laws of electromagnetic induction. The electromagnetic induction states that electromotive force (EMF) induced in the armature coil if it rotates in a uniform magnetic field. The EMF is also generated if the field rotates and the conductor becomes stationary. Thus, the relative motion between the conductor and the field induces the EMF in the conductor"--
Author Biographies -- Preface -- Chapter 1 Introduction -- 1.1. Introduction to Condition Monitoring of Electric Machines -- 1.2. Importance of Synchronous Generators -- 1.3. Economic Aspects and Advantages -- 1.4. Intention of the Book -- Chapter 2 Operation Principles, Structure, and Design of Synchronous Generators -- 2.1. Introduction -- 2.3. Types and Constructions of Synchronous Machines -- 2.4. Voltage Equation and Rated Power of the Synchronous Generator -- 2.5. Synchronous Generator Model Parameters -- 2.6. Different Operating Modes of Synchronous Machines -- 2.7. Damper Bars in Synchronous Generators -- 2.8. Losses and Efficiency in Synchronous Generators -- 2.9. High-Voltage Synchronous Generators -- 2.10. Preliminary Design Considerations -- 2.11. Stator Design Considerations -- 2.12. Summary -- Chapter 3 Transformed Models and Parameter Identification of Synchronous Generators -- 3.1. Introduction -- 3.2. Multi-Phase Synchronous Generator Modeling Based on Park Equations -- 3.4. Parameter Estimation Algorithms -- 3.5. Parameter Accuracy Increments by Considering Saturation -- 3.6. Fault Detection Based on Parameter Deviation -- 3.7. Summary -- Chapter 4 Introduction to Different Types of Faults in Synchronous Generators -- 4.1. Reasons for Condition Monitoring of Synchronous Generators -- 4.2. Different Faults in Synchronous Generators -- 4.3. Main Factors Leading to Electrical Machine Damage -- 4.4. Major Destruction Factors of Stator Winding -- 4.5. Common Faults in Stator Winding -- 4.6. Rotor Field Winding Fault -- 4.7. Eccentricity Faults -- 4.8. Misalignment Faults -- 4.9. Damper Winding Fault -- 4.10. Summary -- Chapter 5 Laboratory Scale Implementation -- 5.1. Introduction -- 5.2. Salient Pole Synchronous Generator -- 5.3. Induction Motor -- 5.4. Gearbox -- 5.5. Converter -- 5.6. Rotor Magnetization Unit -- 5.7. DC Power Supply -- 5.8. Local Passive Load -- 5.9. Sensors -- 5.10. Data Acquisition -- 5.11. Fault Implementation -- 5.12. Noise Considerations -- 5.13. Summary -- Chapter 6. Analytical Modeling Based on Wave and Permeance Method -- 6.1. Introduction -- 6.2. Eccentricity Fault Definition -- 6.3. The Air Gap Magnetic Field -- 6.4. The Electromotive Force in Stator Terminals -- 6.5. The Stator Current -- 6.6. Force Density and Unbalanced Magnetic Pull -- 6.7. Stator Slotting Effects -- 6.8. Magnetic Saturation Effects -- 6.9. The Mixed Eccentricity Fault -- 6.10. The Air Gap Magnetic Field -- 6.11. Induced Electromotive Force in Stator Terminals -- 6.12. Force Density and Unbalanced Magnetic Pull -- 6.13. Short Circuit Modeling -- 6.14. Air Gap Permeance Under a Short Circuit Fault -- 6.15. Force Density and Unbalanced Magnetic Pull under a Rotor Inter-turn Short Circuit Fault -- 6.16.Summary -- Chapter 7 Analytical Modeling Based on Winding Function Methods -- 7.1. Introduction -- 7.2. History and Usage of the WFM -- 7.3. Winding Function Modeling of a Synchronous Generator -- 7.4. Mutual Inductance Calculation Between the Stator Phases -- 7.5. The Mutual Inductance Between the Stator and Rotor -- 7.6. The Self Inductance of the Rotor -- 7.7. Derivative Forms of Synchronous Generator Inductances -- 7.8. A Practical Case study -- 7.9. Healthy Case Simulation -- 7.10. Faulty Case Simulation -- 7.11. Algorithm for Determination of the Magnetic Saturation Factor -- 7.12. Eccentricity Fault Modeling Considering Magnetic Saturation Under Load Variations -- 7.13. Dynamic Modeling under an Eccentricity Fault -- 7.14. Summary -- Chapter 8. Finite Element Modeling of a Synchronous Generator -- 8.1. Introduction -- 8.2. Electromagnetic Field Computation -- 8.3. Eddy Current and Core Loss Considerations -- 8.4. Material Modeling -- 8.5. Band Object, Motion Setup, and Boundary Conditions -- 8.6. Mesh Consideration -- 8.7. Time Steps and Simulation Run Time -- 8.8. Transient and Steady-State Modeling -- 8.9. No-Load and On-Load Modeling -- 8.10. 2D and 3D FEM -- 8.11. 3D-FE Equations of the Synchronous Generator -- 8.12. Modeling of the Stator and Rotor Windings of the Generator and Its Load -- 8.13. Air Gap Magnetic Field Measurements -- 8.14. Stray Flux Measurements -- 8.15. Eccentricity Fault Modeling -- 8.16. Stator and Rotor Short Circuit Fault -- 8.17. Broken Damper Bar Modeling -- 8.18. Summary -- Chapter 9 Thermal Analysis of Synchronous Generators -- 9.1. Introduction -- 9.2. Overview of Thermal Modeling and Analysis -- 9.3. Thermal Modeling and Analyzing Synchronous Generators -- 9.4. Modeling and Analysis of Faulty Synchronous Generators -- 9.5. Summary -- Chapter 10 Signal Processing -- 10.1. Introduction 2 -- 10.2. Signals -- 10.3. Fast Fourier Transform -- 10.4. Fast Fourier Transform with an Adjusted Sampling Frequency -- 10.5. Short-Time Fourier Transform -- 10.6. Continuous Wavelet Transform -- 10.7. Discrete Wavelet Transform -- 10.7.1. Wavelet Energies -- 10.7.2. Wavelet Entropy -- 10.8. Hilbert-Huang Transform -- 10.9. Time Series Data Mining -- 10.10. Spectral Kurtosis and Kurtogram -- 10.11. Noise -- 10.12. Summary -- Chapter 11 Electromagnetic Signature Analysis of Electrical Faults -- 11.1. Introduction -- 11.2. General Introduction to Short Circuit Fault Detection Methods in Synchronous Machines -- 11.3. Stator Short Circuit Fault Types -- 11.4. Synchronous Generator Stator Fault Effects -- 11.5. Fault Diagnosis Methods in the Stator Winding -- 11.6. Stator Short Circuit Fault Detection of Brushless Synchronous Machines -- 11.7. Stator Short Circuit Fault Detection of Powerformers -- 11.8. Stator Short Circuit Fault Detection of Turbo-generators -- 11.9. Inter-turn Short Circuit Fault in Rotor Field Winding -- 11.10 Summary -- Chapter 12 Electromagnetic Signature Analysis of Mechanical Faults -- 12.1. Introduction -- 12.2. Eccentricity Faults -- 12.3. Stator Core Fault -- 12.4. Broken Damper Bar Fault -- 12.5. Summary -- Chapter 13 Vibration Monitoring -- 13.1. Introduction -- 13.2. Condition Monitoring Using Vibration -- 13.3. Vibration in Salient-Pole Synchronous Generators -- 13.4. Introduction to Utilized Terms in Vibration Analysis -- 13.5. Force and Vibration Analysis -- 13.6. Summary -- Chapter 14 Application of Machine Learning in Fault Detection -- 14.1. Introduction -- 14.2. Supervised Learning -- 14.3. Ensemble Learners -- 14.4. Logistic Regression -- 14.5. K-Nearest Neighbors -- 14.6. Support Vector Machine -- 14.7. Decision Tree Learning -- 14.8. Random Forest 12 -- 14.9. Boosted Trees -- 14.10. Gradient Boost Decision Trees -- 14.11. Artificial Neural Network -- 14.12. Other Artificial Neural Networks -- 14.13. Real Case Application -- 14.14. Summary -- Chapter 15 Insulation Defect Monitoring -- 15.1. Introduction -- 15.2. History and Advantages of Using Partial Discharge Techniques -- 15.3. Electrical Machine Fault Generation Factors -- 15.4. Rotating Machine Insulation System -- 15.5 PD Types in Rotating Machines -- 15.6. Risk Assessment of Different Partial Discharge Faults -- 15.7. Frequency Characteristics of Current Pulses -- 15.8. Measurement of PD Signals -- 15.9. Online Measurements of PD in Rotating Electrical Machines -- 15.10. Summary -- Chapter 16 Noise Rejection Methods and Data Interpretation -- 16.1. Introduction -- 16.2. Noise Rejection in Online Measurement -- 16.3. Noise Sources in Generators -- 16.4. Different Methods for Denoising -- 16.5. Data Interpretation -- 16.6. Separating PD sources -- 16.7. Summary -- References.
Includes bibliographical references and index.
IEEE Press series on power and energy systems ; 121