EBOOK - Electrical power systems quality (Roger C. Dugan) | Cộng đồng Kỹ thuật cơ điện Việt Nam EBOOKBKMT

EBOOK - Chất lượng hệ thống điện năng (Roger C. Dugan) - 525 Trang.

Both electric utilities and end users of electric power are becoming increasingly concerned about the quality of electric power. The term power qualityhas become one of the most prolific buzzwords in the power industry since the late 1980s. It is an umbrella concept for a multitude of individual types of power system disturbances. The issues that fall under this umbrella are not necessarily new. What is new is that engineers are now attempting to deal with these issues using a system approach rather than handling them as individual problems.

CHAPTER 1: INTRODUCTION

What is Power Quality?
Power Quality -- Voltage Quality
Why Are We Concerned About Power Quality?
The Power Quality Evaluation Procedure
Who Should Use This Book
Overview of the Contents

CHAPTER 2: TERMS AND DEFINITIONS

Need for a Consistent Vocabulary
General Classes of Power Quality Problems
Transients
Long-Duration Voltage Variations
Short-Duration Voltage Variations
Voltage Imbalance
Waveform Distortion
Voltage Fluctuation
Power Frequency Variations
Power Quality Terms
Ambiguous Terms
CBEMA and ITI Curves
References

CHAPTER 3: VOLTAGE SAGS AND INTERRUPTIONS

Sources of Sags and Interruptions
Estimating Voltage Sag Performance
Fundamental Principles of Protection
Solutions at the End-User Level
Evaluating the Economics of Different Ride-Through Alternatives
Motor-Starting Sags
Utility System Fault-Clearing Issues
References

CHAPTER 4: TRANSIENT OVERVOLTAGES

Sources of Transient Overvoltages
Principles of Overvoltage Protection
Devices for Overvoltage Protection
Utility Capacitor-Switching Transients
Utility System Lightning Protection
Managing Ferroresonance
Switching Transient Problems with Loads
Computer Tools for Transients Analysis
References

CHAPTER 5: FUNDAMENTALS OF HARMONICS

Harmonic Distortion
Voltage versus Current Distortion
Harmonics versus Transients
Harmonic Indexes
Harmonic Sources from Commercial Loads
Harmonic Sources from Industrial Loads
Locating Harmonic Sources
System Response Characteristics
Effects of Harmonic Distortion
Interharmonics
References
Bibliography

CHAPTER 6: APPLIED HARMONICS

Harmonic Distortion Evaluations
Principles for Controlling Harmonics
Where to Control Harmonics
Harmonic Studies
Devices for Controlling Harmonic Distortion
Harmonic Filter Design: A Case Study
Case Studies
Standards of Harmonics
References
Bibliography

CHAPTER 7: LONG-DURATION VOLTAGE VARIATIONS

Principles of Regulating the Voltage
Devices for Voltage Regulation
Utility Voltage Regulator Application
Capacitors for Voltage Regulation
End-User Capacitor Application
Regulating Utility Voltage with Distributed Resources
Flicker
References
Bibliography

CHAPTER 8: POWER QUALITY BENCHMARKING

Introduction
Benchmarking Process
RMS Voltage Variation Indices
Harmonics Indices
Power Quality Contracts
Power Quality Insurance
Power Quality State Estimation
Including Power Quality in Distribution Planning
References
Bibliography

CHAPTER 9: DISTRIBUTED GENERATION AND POWER QUALITY

Resurgence of DG
DG Technologies
Interface to the Utility System
Power Quality Issues
Operating Conflicts
DG on Distribution Networks
Siting DGDistributed Generation
Interconnection Standards
Summary
References
Bibliography

CHAPTER 10: WIRING AND GROUNDING

Resources
Definitions
Reasons for Grounding
Typical Wiring and Grounding Problems
Solutions to Wiring and Grounding Problems
Bibliography

CHAPTER 11: POWER QUALITY MONITORING

Monitoring Considerations
Historical Perspective of Power Quality Measuring Instruments
Power Quality Measurement Equipment
Assessment of Power Quality Measurement Data
Application of Intelligent Systems
Power Quality Monitoring Standards
References
Index

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