Operation and Control of Electric Energy

The purpose of this book is to provide a working knowledge and an exposure to cutting edge developments in operation and control of electric energy processing systems. The book focuses on the modeling and control of interdependent communications and electric energy systems, Micro-Electro-Mechanical Systems (MEMS), and the interdisciplinary education component of the EPNES initiative.

James Momoh was chair of the Electrical Engineering Department at Howard University and director of the Center for Energy Systems and Control. In 1987, Momoh received a National Science Foundation (NSF) Presidential Young Investigator Award. He is a Fellow of the IEEE and a Distinguished Fellow of the Nigerian Society of Engineers (NSE). His current research activities for utility firms and government agencies span several areas in systems engineering, optimization, and energy systems' control of complex and dynamic networks.

Lamine Mili is Professor of Electrical and Computer Engineering at Virginia Tech. An IEEE Senior Member, Dr. Mili is also a member of Institute of Mathematical Statistics and the American Statistical Association. His research interests include risk assessment and management of critical infrastructures; power system analysis and control; bifurcation theory and chaos; and robust statistics as applied to engineering problems.

Preface	p. ix
Contributors	p. xi
A Framework for Interdisciplinary Research and Education	p. 1
Introduction	p. 1
Power System Challenges	p. 4
The Power System Modeling and Computational Challenge	p. 5
Modeling and Computational Techniques	p. 6
New Interdisciplinary Curriculum for the Electric Power Network	p. 6
Solution of the EPNES Architecture	p. 6
Modular Description of the EPNES Architecture	p. 6
Some Expectations of Studies Using EPNES Benchmark Test Beds	p. 7
Test Beds for EPNES	p. 8
Power System Model for the Navy	p. 8
Civil Test Bed-179-Bus WSCC Benchmark Power System	p. 10
Examples of Funded Research Work in Response to the EPNES Solicitation	p. 10
Funded Research by Topical Areas/Groups under the EPNES Award	p. 10
EPNES Award Distribution	p. 12
Future Directions of EPNES	p. 13
Conclusions	p. 14
Dynamical Models in Fault-Tolerant Operation and Control of Energy Processing Systems	p. 15
Introduction	p. 15
Model-Based Fault Detection	p. 16
Fault Detection via Analytic Redundancy	p. 17
Failure Detection Filters	p. 17
Detuning Detection and Accommodation on IFOC-Driven Induction Motors	p. 19
Detuned Operation of Current-Fed Indirect Field-Oriented Controlled Induction Motors	p. 20
Detection of the Detuned Operation	p. 24
Estimation of the Magnetizing Flux	p. 26
Accommodation of the Detuning Operation	p. 27
Simulations	p. 28
Broken Rotor Bar Detection on IFOC-Driven Induction Motors	p. 28
Squirrel Cage Induction Motor Model with Broken Rotor Bars	p. 29
Broken Rotor Bar Detection	p. 31
Fault Detection on Power Systems	p. 35
The Model	p. 35
Class of Events	p. 37
The Navy Electric Ship Example	p. 38
Fault Detection Scheme	p. 39
Numerical Simulations	p. 41
Conclusions	p. 43
Intelligent Power Routers: Distributed Coordination for Electric Energy Processing Networks	p. 47
Introduction	p. 47
Overview of the Intelligent Power Router Concept	p. 48
IPR Architecture and Software Module	p. 50
IPR Communication Protocols	p. 55
State of the Art	p. 55
Restoration of Electrical Energy Networks with IPRs	p. 59
Mathematical Formulation	p. 60
IPR Network Architecture	p. 60
Islanding-Zone Approach via IPR	p. 61
Negotiation in Two Phases	p. 62
Experimental Results	p. 65
Risk Assessment of a System Operating with IPR	p. 65
IPR Components	p. 65
Configuration	p. 66
Example	p. 66
Distributed Control Models	p. 71
Distributed Control of Electronic Power Distribution Systems	p. 71
Integrated Power System in Ship Architecture	p. 74
DC Zonal Electric Distribution System	p. 76
Implementation of the Reconfiguration Logic	p. 77
Conclusion	p. 77
Reconfiguration	p. 79
Economics Issues of the Intelligent Power Router Service	p. 79
The Standard Market Design (SMD) Environment	p. 80
The Ancillary Service (A/S) Context	p. 81
Reliability Aspects of Ancillary Services	p. 81
The IPR Technical/Social/Economical Potential for Optimality	p. 81
Proposed Definition for the Intelligent Power Router Ancillary Service	p. 82
Summary	p. 82
Conclusions	p. 82
Power Circuit Breaker Using Micromechanical Switches	p. 87
Introduction	p. 87
Overview of Technology	p. 88
Medium Voltage Circuit Breaker	p. 88
Micro-Electro-Mechanical Switches (MEMS)	p. 90
The Concept of a MEMS-Based Circuit Breaker	p. 92
Circuit Description	p. 92
Operational Principle	p. 93
Current Interruption	p. 94
Switch Closing	p. 94
Investigation of Switching Array Operation	p. 95
Model Development	p. 97
Analysis of Current Interruption and Load Energization	p. 97
Effect of Delayed Opening of Switches	p. 100
A Block of Switch Fails to Open	p. 102
Effect of Delayed Closing of Switches	p. 103
One Set of Switches Fails to Close	p. 103
Summary of Simulation Results	p. 104
Reliability Analyses	p. 105
Approximations to Estimate Reliability	p. 106
Computational Results	p. 108
Proof of Principle Experiment	p. 109
Circuit Breaker Construction	p. 109
Control Circuit	p. 111
Circuit Breaker Design	p. 114
Conclusions	p. 115
GIS-Based Simulation Studies for Power Systems Education	p. 119
Overview	p. 119
Case Studies	p. 121
Generic Decision Model Structure	p. 123
Simulation Modeling	p. 126
Interfacing	p. 130
Concepts for Modeling Power System Management and Control	p. 133
Large-Scale Optimization and Hierarchical Planning	p. 133
Sequential Decision Processes and Adaptation	p. 137
Stochastic Decisions and Risk Modeling	p. 140
Group Decision Making and Markets	p. 141
Power System Simulation Objects	p. 142
Grid Operation Models and Methods	p. 143
Randomized Load Simulator	p. 144
Market Maker	p. 146
The Commitment Planner	p. 150
Implementation	p. 153
Distributed Generation and Momentum Change in the American Electric Utility System: A Social-Science Systems Approach	p. 157
Introduction	p. 157
Overview of Concepts	p. 158
Using the Systems Approach to Understand Change in the Utility System	p. 158
Origins and Growth of Momentum in the Electric Utility System	p. 159
Politics and System Momentum Change	p. 161
Application of Principles	p. 163
The Possibility of Distributed Generation and New Momentum	p. 164
Impediments to Decentralized Electricity Generation	p. 166
Practical Consequences: Distributed Generation as a Business Enterprise	p. 168
Aggregated Dispatch as a Means to Stimulate Economic Momentum with DG	p. 170
Conclusion	p. 172
Index	p. 177
Table of Contents provided by Ingram. All Rights Reserved.

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Operation and Control of Electric Energy Processing Systems

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