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Control and Automation of Electrical Power Distribution Systems

By James Northcote-Green, Robert G. Wilson

Edited by James Northcote-Green, Robert G. Wilson

Series Editor: H. Lee Willis

CRC Press – 2006 – 488 pages

Purchasing Options:

  • Add to CartHardback: $199.95
    978-0-8247-2631-7
    September 22nd 2006

Description

Implementing the automation of electric distribution networks, from simple remote control to the application of software-based decision tools, requires many considerations, such as assessing costs, selecting the control infrastructure type and automation level, deciding on the ambition level, and justifying the solution through a business case. Control and Automation of Electric Power Distribution Systems addresses all of these issues to aid you in resolving automation problems and improving the management of your distribution network.

Bringing together automation concepts as they apply to utility distribution systems, this volume presents the theoretical and practical details of a control and automation solution for the entire distribution system of substations and feeders. The fundamentals of this solution include depth of control, boundaries of control responsibility, stages of automation, automation intensity levels, and automated device preparedness. To meet specific performance goals, the authors discuss distribution planning, performance calculations, and protection to facilitate the selection of the primary device, associated secondary control, and fault indicators. The book also provides two case studies that illustrate the business case for distribution automation (DA) and methods for calculating benefits, including the assessment of crew time savings.

As utilities strive for better economies, DA, along with other tools described in this volume, help to achieve improved management of the distribution network. Using Control and Automation of Electric Power Distribution Systems, you can embark on the automation solution best suited for your needs.

Contents

POWER DELIVERY SYSTEM CONTROL AND AUTOMATION

Introduction

Why Distribution Automation

Power Delivery Systems

Control Hierarchy

What Is Distribution Automation

Distribution Automation System

Basic Architectures and Implementation Strategies for DA

Definitions of Automated Device Preparedness

Summary

CENTRAL CONTROL AND MANAGEMENT

Introduction

Power System Operation

Operations Environment of Distribution Networks

Evolution of Distribution Management Systems

Basic Distribution Management System Functions

Basic of a Real-Time Control System (SCADA)

Outage Management

Decision Support Tools

Subsystems

Extended Control-Feeder Automation

Performance Measures and Response Times

Data Base Structures and Interfaces

Conclusions

Appendix 2A: Sample Comprehensive CIM Structure

DESIGN, CONSTRUCTION AND OPERATION OF DISTRIBUTION SYSTEMS, MV NETWORKS

Introduction

Design of Networks

LV Distribution Networks

Switchgear for Distribution Substations and LV Networks

Extended Control of Distribution Substations and LV Networks

Summary

HARDWARE FOR DISTRIBUTION SYSTEMS

Introduction to Switchgear

Primary Switchgear

Ground Mounted Network Substations

Larger Distribution/Compact Substations

Pole Mounted Enclosed Switches

Pole Mounted Reclosers

Pole Mounted Switch Disconnectors and Disconnectors

Operating Mechanisms and Actuators

Current and Voltage Measuring Devices

Instrument Transformers in Extended Control

Current and Voltage Sensors

PROTECTION AND CONTROL

Introduction

Protection Using Relays

Sensitive Earth Fault and Instantaneous Protection Schemes

Protection Using Fuses

Earth Fault and Overcurrent Protection for Solid/ Resistance Earthed Networks

Earth Faults on Compensated Networks

Earth Faults on Unearthed Networks

An Earth Fault Relay for Compensated and Unearthed Networks

Fault Passage Indication

Connection of the FPI to the Distribution System Conductor

Distribution System Earthing and Fault Passage Indication

AutoReclosing and Fault Passage Indicators

The Choice of Indication between Phase Fault and Earth Fault

Resetting the Fault Passage Indicator

Grading of Fault Passage Indicators

Selecting a Fault Passage Indicator

Intelligent Electronic Device (IED)

Power Supplies for Extended Control

Automation Ready Switchgear - FA Building Blocks

Examples of Building Blocks

Typical Inputs and Outputs for Building Blocks

Control Building Blocks and Retrofit

Control Logic

PERFORMANCE OF DISTRIBUTION SYSTEM

Faults on Distribution Networks

Performance and Basic Reliability Calculations

Calculating the Effects of Extended Control

Improving the Reliability of Underground Networks

Improving the Reliability of Overhead Networks

Improving Performance with Automation

Improvements by Combining Design Methods on Underground Circuits

COMMUNICATION SYSTEMS FOR CONTROL AND AUTOMATION

Introduction

Communications and Distribution Automation

DA Communication Physical Link Options

Wireless Communication

Wire Communications

Distribution Automation Communications Protocols

Distribution Automation Communications Architecture

DA Communications User Interface

Some Considerations for DA Communications Selection

Requirements for Dimensioning the Communications Channel

Glossary of Communication Terms Used

CREATING THE BUSINESS CASE

Introduction

Potential Benefits Perceived by the Industry for Substation Automation

Potential Benefits Perceived by the Industry for Feeder Automation

Generic Benefits

Benefits Opportunity Matrix

Benefits Flow Chart

Dependencies, Shared and Unshared Benefits

Capital Deferral, Release, or Displacement

Savings in Manpower

Savings Related to Energy

Other Operating Benefits

Summary of DA Functions and Benefits

Economic Value-Cost

Presentation of Results and Conclusion

CASE STUDIES

Introduction

Case Study 1, Long Rural Feeder

Case Study 2, Large Urban Network

Glossary

Index

Name: Control and Automation of Electrical Power Distribution Systems (Hardback)CRC Press 
Description: By James Northcote-Green, Robert G. WilsonEdited by James Northcote-Green, Robert G. WilsonSeries Editor: H. Lee Willis. Implementing the automation of electric distribution networks, from simple remote control to the application of software-based decision tools, requires many considerations, such as assessing costs, selecting the control infrastructure type and automation...
Categories: Power Engineering, Systems & Controls