Reactive Power Compensation

Wolfgang Hofmann 지음

Wiley 2012년 02월 23일 출간

작품소개

책소개

The comprehensive resource on reactive power compensation, presenting the design, application and operation of reactive power equipment and installationsThe area of reactive power compensation is gaining increasing importance worldwide. If suitably designed, it is capable of improving voltage quality significantly, meaning that losses in equipment and power systems are reduced, the permissible loading of equipment can be increased, and the over-all stability of system operation improved. Ultimately, energy use and CO2 emisson are reduced.This unique guide discusses the effects of reactive power on generation, transmission and distribution, and looks at the compensation of existing installations in detail. It outlines methods for determination of reactive power and answers the questions that arise when controlling it, for example, at parallel operation with generators. There is also a chapter devoted to installation, maintenance and disturbances.Key features include:A concise overview as well as deep specific knowledge on the segment power factor regulation and network qualityTheory of reactive power compensation coupled with typical application examples such as car manufacturing, metal rolling and chemical worksChapter summaries with charts explaining how to put the theory into practiceCoverage on the cost-saving aspects of this technology, including the efficient use of energy and the reduction of CO2A practical guide for electrical engineers and technicians in utilities, this is also essential reading for maintenance engineers, designers, electrical contractors, manufacturing companies, and researchers, also those in industry and planning agencies. Insightful and clear, the book will also appeal to senior undergraduate and graduate electrical engineering students and professors.

목차

Foreword and Acknowledgements xiii1 Basics of Reactive Power 11.1 Chapter Overview 11.2 Phasors and Vector Diagrams 11.3 Definition of Different Types of Power 41.4 Definition of Power for Non-Sinusoidal Currents and Voltages 61.5 Equivalent Mechanical Model for Inductance 91.6 Equivalent Mechanical Model for Capacitance 111.7 Ohmic and Reactive Current 121.8 Summary 13References 132 Reactive Power Consumers 152.1 Chapter Overview 152.2 Reactive Energy Demand 152.3 Simplified Model: Series Reactive Power Consumer 162.4 Realistic Model: Mixed Parallel and Series Reactive Power 162.5 Reactive Power Demand of Consumers 172.5.1 Asynchronous Motors 172.5.2 Transformers 182.5.3 Control Gear (Ballast) for Gas Discharge Lamps 182.6 Summary 213 Effect of Reactive Power on Electricity Generation, Transmission and Distribution 233.1 Chapter Overview 233.2 Loading of Generators and Equipment 233.3 Power System Losses 243.4 Generators 273.5 Voltage Drop 283.5.1 General 283.5.2 Transferable Power of Lines and Voltage Drop 293.5.3 Transformer Voltage Drop 323.6 Available Power of Transformers 343.7 Summary 354 Reactive Power in Standard Energy Contracts 374.1 Chapter Overview 374.2 Introduction 374.3 Reactive Energy to be Considered in Standardized Contracts of Suppliers 384.3.1 Pricing Dependent on Consumed Reactive Energy (kvarh) 384.3.2 Pricing Dependent on Consumed Apparent Energy (kVAh) 404.4 Importance of Reactive Power in Determining the Costs of Connection 424.5 Summary 42Reference 425 Methods for the Determination of Reactive Power and Power Factor 435.1 Chapter Overview 435.2 Methods 435.2.1 Determination of Power Factor in Single-Phase Grids 435.2.2 Direct I

작가정보

저자(글) Wolfgang Hofmann