Record Nr.

UNINA9910956251003321

Titolo

Electric power systems in transition / / Olivia E. Robinson, editor

Pubbl/distr/stampa


New York, : Nova Science Publishers, Inc., c2010

ISBN

1-61728-313-4

Edizione

[1st ed.]

Descrizione fisica

1 online resource (250 p.)

Collana

Electrical engineering developments

Altri autori (Persone)

RobinsonOlivia E

Disciplina

621.319/1

Soggetti

Electric power systems

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Intro -- ELECTRIC POWER SYSTEMS IN TRANSITION -- ELECTRIC POWER SYSTEMS IN TRANSITION -- CONTENTS -- PREFACE -- Chapter 1 PHASE-MODE TRANSFORMATION MATRIX APPLICATION FOR TRANSMISSION LINE AND ELECTROMAGNETIC TRANSIENT ANALYSES -- INTRODUCTION -- I. TRANSMISSION LINE PARAMETERS DERIVATION FROM IMPEDANCE VALUES [20] -- I.1. Frequency-Dependent Transmission Line Parameter Calculating -- I.2. Line Parameter Calculating from Phase Current and Voltage Values -- II. AN ALTERNATIVE MODEL FOR EQUIVALENT CONDUCTOR DETERMINATION FROM BUNDLED CONDUCTORS -- II.1. Analyses for Single Conductors -- II.2. Application of Geometric Mean Radius (GMR) Concept for Changing a Bundled Conductor into an Equivalent Conductor -- II.3. Alternative Method for Determination of Equivalent Conductor from a Bundled Conductor [36] -- III. UNTRANSPOSED SYMMETRICAL THREE-PHASE TRANSMISSION LINE MODAL REPRESENTATION USING TWO TRANSFORMATION MATRICES [37, 38] -- III.1. Obtaining the β Exact Mode Applying Clarke's Matrix -- III.2. Obtaining the α and 0 Exact Modes Applying a 2-Order Transformation Matrix -- III.3. An Actual Transmission Line Sample -- IV. SINGLE REAL TRANSFORMATION MATRIX APPLICATIONS FOR UNTRANSPOSED THREE-PHASE TRANSMISSION LINES [39-41] -- IV.1. Mathematical Modeling for Modal Transformation Application -- IV.2. Untransposed Three-Phase Lines with a Vertical Symmetry Plane -- IV.2. Untransposed Three-Phase Lines with Phase Conductors Vertically Lined -- IV.4. Untransposed Three-Phase Lines with Phase Conductors Distributed in a Triangular

Design -- V. CORRECTION PROCEDURE APPLICATION TO CLARKE'S MATRIX [42] -- V.1. The Perturbation Approach Corrector Matrix [5] -- V.2. Flowchart of the Correction Procedure -- V.3. The Q Matrix Application -- V.4. The N Matrix Application for Completing the Correction Procedure -- VI. IMPROVING SPECIFIC RESULTS [39-41].

VI.1. Other Analyses Associated to the Applications Shown in this Chapter -- VII. CONCLUSIONS -- REFERENCES -- Chapter 2 LOAD MODELING IN POWER SYSTEMS: INDUCTION MOTORS -- ABSTRACT -- 1. INTRODUCTION -- 1.1. Approaches to Obtain a Model of the Load -- 1.2. Objectives of this Work -- 2. INDUCTION MOTORS -- 2.1. Models for Induction Motor Simulation -- 2.2. Characteristics Speed-Torque and Current Torque -- 2.3. Influence of the Motor Inertia -- 2.4. Small Motors -- 3. MEASUREMENT BASED LOAD MODEL - SMALL SIGNAL -- 3.1. Analysis Approach -- 3.1.1. Examples -- 3.1.2. Identification with feedthrough -- 3.1.3. Industrial example of frequency to power relations -- 3.1.4. Industrial example of voltage magnitude to power relations -- 3.2. Improving the Small Signal Model: F-V Relationship -- 3.2.1. Numerical example -- 3.2.2. Results when applied to real Frequency and Voltage measurements -- 4. IDENTIFICATION OF MOTOR LOADS -- 5. LARGE DISTURBANCE -- 5.1. Simulating Major Disturbances -- 5.2. Severity Index -- 5.3. Tripping Index -- 5.4. Decomposing the Response of Motors in Stalled, Reaccelerated and Tripped -- 5.5. Example -- 6. DISCUSSION -- 7. CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 3 ADVANCED WIDE-AREA ANGLE STABILITY AND VOLTAGE CONTROL -- ABSTRACT -- WIDE-AREA ANGLE STABILITY CONTROLS -- Adaptive Wide-Area Special Protection and Control Systems -- Adaptive wide-Area Control (Wide-Area Response-Based Control) -- IMPLEMENTATION OF WIDE-AREA STABILITY CONTROL SCHEMES USING SYNCHRO-PHASOR DATA -- The Mexican Interconnected System -- Description of Base Cases -- Oscillatory Stability Monitoring -- The Mis Wams System -- Operating Experiences with SPSs and Functional Needs -- Response-based Generator Dropping Scheme (GDS) -- Requirements for an on-line generator dropping control -- Inter-area oscillation monitoring.

Selectivity of generator dropping controls -- Experience with the design and testing of generator dropping schemes -- Selectivity of generation dropping schemes -- SPS steps -- Time delay to initiate generator tripping -- Wide-Area Under-Frequency Load Shedding Scheme -- Sensitivity analyzes -- WIDE-AREA VOLTAGE CONTROL -- Operating Experience with SVCs -- Voltage-VAR Controls -- Wide-Area Reactive Power Control - Secondary Voltage Control -- Analysis Method -- Critical Bus identification using modal voltages -- Modal reactive power -- Viability Studies -- Modal-based identification of critical voltage areas -- Hierarchical control of static var compensators -- Coordination of reactive power sources -- Effect on System Transient Behavior -- SUMMARY AND CONCLUSIONS -- REFERENCES -- Chapter 4 DESIGN AND APPLICATION OF A PROPOSED OVERCURRENT RELAY IN RADIAL DISTRIBUTION NETWORKS -- ABSTRACT -- I. INTRODUCTION -- II. INVERSE TIME OVERCURRENT DIGITAL RELAY -- III. OPERATING LIMITS OF THE OVERCURRENT RELAY -- IV. APPLICATION CRITERIA OF PROPOSED RELAY IN POWER SYSTEMS -- V. FIRST FUNCTION -- A. Time Coordination -- B. Coordination -- C. Test Operation in Steady State and Dynamic State -- D. Fault Confirmation Logic -- E. Application Criteria for the First Function -- VI. SECOND FUNCTION -- a. Overcurrent Relays -- b. Test -- VII. CONCLUSION -- REFERENCES -- Chapter 5 POWER SYSTEMS STATE ESTIMATION -- ABSTRACT -- 1. INTRODUCTION -- 2. STATE ESTIMATION MODEL -- 3. STATE ESTIMATION ALGORITHMS -- 3.1. WLS Algorithm for State Estimation

-- 3.2. Topological Observability Analysis [3] -- 3.2.1 Formulation of topological observability [8-16] -- 3.2.2 Augmented graph for observability analysis -- 3.3. Identification of Bad Measurement Data [3] -- 3.3.1. Properties and classification of bad data groups -- 3.3.2. Criticality of flow measurements based on graph theory.

4. HARMONIC STATE ESTIMATION -- 5. PMU BASED STATE ESTIMATION -- REFERENCES -- Chapter 6 ADVANCED FAULT LOCATION TECHNIQUE FOR PARALLEL POWER TRANSMISSION LINES -- ABSTRACT -- I. INTRODUCTION -- II. PROPOSED FAULT LOCATION METHOD -- II.1. Construction of bus Impedance Matrix with Addition of the Fault Bus -- II.2. Fault Location Algorithms -- A. Fault location with measurements from two buses -- B. Fault location with measurements from a single bus -- III. SIMULATION STUDIES -- IV. CONCLUSION -- REFERENCES -- INDEX -- Blank Page.

Sommario/riassunto

Despite the changes with different structures, market rules, and uncertainties, an energy management system (EMS) control centre must always be in place to maintain the security, reliability, and quality of electric service. This book reviews the function of state estimation.

Record Nr.

UNINA9911028743903321

Autore

Patterson Gary D

Titolo

From Heat to Thermal Science : A History of Thermodynamics

Pubbl/distr/stampa


Cham : , : Springer, , 2025
©2025

ISBN

3-031-99676-3

Edizione

[1st ed.]

Descrizione fisica

1 online resource (276 pages)

Collana

Perspectives on the History of Chemistry Series

Soggetti

SCIENCE / History

SCIENCE / Mechanics / Thermodynamics

SCIENCE / Physics / General