Power Quality: Var Compensation in Power Systems

ISBN-13: 9781420064803 / Angielski / Twarda / 2008 / 304 str.

Mulukutla S. Sarma; R. Sastry Vedam

Opis

Power Quality: Var Compensation in Power Systems provides comprehensive coverage of power quality, harmonics, and static var compensators, illustrated through a wide selection of case studies. Among the various compensators, it considers the recently developed STATCOM, used for transmission systems and single phase traction load compensation, as well as for flicker compensation in arc furnaces. The book presents an in-depth discussion of harmonics, including sources, design, standards, analysis, measurement, monitoring, and filtering. It also addresses single pole autoreclosing and the design of neutral reactors in four reactor schemes, which proves highly useful for improving reliability of supply.

Spis treści

Power Quality Importance of Power Quality Common Disturbances in Power Systems Short-Duration Voltage Variation Long-Duration Voltage Variations Transients Harmonics Interharmonics DC Offset Notching Noise Voltage Fluctuations Power Frequency Variations Solutions to Power Quality Problems Ambiguous Terms CBEMA and ITI Curves Features of Voltages in Power Systems Grounding Reactive Power in Power Systems with Harmonic Distortion Reliability Power Quality Data Collection Static Var Compensators Static Var Compensator Systems Versus Synchronous Condensers, Capacitors, and Reactors Shunt and Series Compensation Fundamentals of Load Compensation Reactive Power Relationships Between Wye- and Delta-connected Systems Static Var Compensators for Transmission Systems A Case Study (Australia): Central Queensland Railway Project Chester–Maine SVC Project Control of Static Var Compensators Control Systems for SVCs in Transmission System Applications Control Systems for SVCs in Traction Applications Phase-Locked Oscillator Control System Implementation Details of a Programmable High-Speed Controller Harmonics Converter Harmonics Single-Phase Power Supplies DC Drives AC Drives Pulse Width Modulation (PWM) Telecontrol Signals Cycloconverters Transformers Harmonics in Rotating Machines Harmonics in arc Furnace Loads Harmonic in a Thyristor-Controlled Reactor The K-Factor Utility Harmonic Regulations and Standards Undesirable Effects of the Harmonics Specification of the Harmonic Limits Philosophical Differences between IEEE 519-1992 and IEC 61000 Series Standards IEEE 519-1992 IEC 61000 Series Standards General Comments on the Standards Application of the Standards Examples of the Harmonic Studies Harmonic Filters Undesirable Effects of Harmonics Harmonic Sources Types of Filters AC Network Impedance Design of Single-Tuned Filters Design of Double-Tuned Filters Filter Performance Evaluation Design of Damped Filters Filter Component Ratings Computational Tools and Programs for the design and Analysis of Static Var Compensators and Filters Computational Tools Digital Computers Analog Computers Special Problems in the Simulation of Power Electronic Circuits Transient Electrical Network Analyzers Special-Purpose Simulators Computer Programs DADiSP Monitoring Power Quality Site Surveys Transducers IEC-Recommended Measurement Techniques for Harmonics Necessity for the Measurement of Harmonic Voltages and Currents Harmonic Monitoring System Continuous Harmonic Analysis in Real Time (CHART) Presentation of Harmonic Measurements Examples of Projects Needing Harmonic Monitoring in the Powerlink Queensland System, Australia Flicker IEC Flicker Meter Reactors Losses in the Power System Switching Surges Shunt Reactor Installations in EHV Lines Determination of Shunt Reactor Rating Choice of Voltage Level for Shunt Reactor Connection Single-Pole Auto-Reclosing of Transmission Lines Types of Reactors Based on their Function Construction of Reactors Capacitors Capacitor BanksCapacitor Bank Connections Protection of Capacitor Banks Capacitor Bank Switching Series Capacitors Metal Oxide Varistors (MOVs) Fast Fourier Transforms Fourier Series Symmetrical Properties of Waveforms Sinc Function Discrete Fourier Transform (DFT) Fast Fourier Transform (FFT) Cooley–Tukey Algorithm FFT of Two Real Functions Simultaneously Mixed Radix FFT Split-Radix FFT FFT Pruning The Convolution Integral Auto- and Cross-Correlation Functions Pitfalls of the Discrete Fourier Transform Guidelines for using FFT for Harmonic Analysis

O autorze

Vedam, R. Sastry; Sarma, Mulukutla S.