Power System Oscillations
(Sprache: Englisch)
Power System Oscillations deals with the analysis and control of low frequency oscillations in the 0.2-3 Hz range, which are a characteristic of interconnected power systems. Small variations in system load excite the oscillations, which must be damped...
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Power System Oscillations deals with the analysis and control of low frequency oscillations in the 0.2-3 Hz range, which are a characteristic of interconnected power systems. Small variations in system load excite the oscillations, which must be damped effectively to maintain secure and stable system operation. No warning is given for the occurrence of growing oscillations caused by oscillatory instability, since a change in the system's operating condition may cause the transition from stable to unstable. If not limited by nonlinearities, unstable oscillations may lead to rapid system collapse. Thus, it is difficult for operators to intervene manually to restore the system's stability. It follows that it is important to analyze a system's oscillatory behavior in order to understand the system's limits. If the limits imposed by oscillatory instability are too low, they may be increased by the installation of special stabilizing controls. Since the late 60s when this phenomena was first observed in North American systems, intensive research has resulted in design and installation of stabilizing controls known as power system stabilizers (PSS). The design, location and tuning of PSS require special analytical tools. This book addresses these questions in a modal analysis framework, with transient simulation as a measure of controlled system performance. After discussing the nature of the oscillations, the design of the PSS is discussed extensively using modal analysis and frequency response. In the scenario of the restructured power system, the performance of power system damping controls must be insensitive to parameter uncertainties. Power system stabilizers, when well tuned, are shown to be robust using the techniques of modern control theory. The design of damping controls, which operate through electronic power system devices (FACTS), is also discussed. There are many worked examples throughout the text.
The Power System Toolbox© for usewith MATLAB® is used
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to perform all of the analyses used in this book.
The text is based on the author's experience of over 40 years as an engineer in the power industry and as an educator.
The text is based on the author's experience of over 40 years as an engineer in the power industry and as an educator.
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Inhaltsverzeichnis zu „Power System Oscillations “
1 Introduction.- 2 The Nature of Power System Oscillations.- 1 Introduction.- 2 Classical Generator Model.- 3 Detailed Generator Model.- 4 Controlled Detailed Generator Model.- 5 Response to System Faults.- 6 Final Discussion and Comments.- 7 References.- 3 Modal Analysis of Power Systems.- 1 Introduction.- 2 Modal Analysis of Linear Dynamic Systems.- 3 Modal Analysis Applied to the Detailed Generator Case with and without Controls.- 4 Final Comments and Discussion.- 5 References.- 4 Modal Analysis for Control.- 1 Introduction.- 2 Transfer Functions.- 3 Synchronizing and Damping Torques.- 4 Summary and Conclusions.- 5 References.- 5 Power System Structure and Oscillations.- 1 Introduction.- 2 Coherent Generator Groups.- 3 Coherency in an Interconnected Power System.- 4 Tie Line Influence on Inter-area Mode Stability.- 5 Comments on System Structure.- 6 References.- 6 Generator Controls.- 1 Introduction.- 2 Speed Governor Controls.- 3 Excitation Controls.- 4 References.- 7 Power System Stabilizers.- 1 Introduction.- 2 Power System Stabilizer Basics.- 3 Stabilization of a Complete System.- 4 Evaluation of Power System Stabilizer Performance.- 5 Comments.- 6 References.- 8 Power System Stabilizers - Problems and Solutions.- 1 Introduction.- 2 Generator Torsional Oscillations.- 3 Power System Stabilizers at a Plant of Identical Generators.- 4 Comments.- 5 References.- 9 Robust Control.- 1 Introduction.- 2 Performance Specifications.- 3 Robust Control.- 4 Robustness of Power System Controls.- 5 Robust Control Design.- 6 Final Comments.- 7 References.- 10 Damping by Electronic Power System Devices.- 1 Introduction.- 2 System Performance without Electronic Controls.- 3 Static VAr Compensators.- 4 Thyristor Controlled Series Capacitor.- 5 High Voltage DC Link Modulation.- 6General Comments.- 7 References.- A1 Model Data Formats and Block Diagrams.- 1 Load Flow Data.- 2 Dynamic Data.- 2.1 Generator.- 2.2 Exciter System Data.- 2.3 Turbine/ Governor Data.- 3 HVDC Data.- 4 Case
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Data.- 4.1 Two-Area Test Case.- 4.2 Two-Area Test Case with Series Capacitor.- 4.3 Two-Area System with Parallel HVDC Link.- 4.4 16 Generator System.- 4.5 Single Generator Infinite Bus System.- 4.6 Multiple Generator Infinite Bus System.- A2 Equal Eigenvalues.- 1 Nonlinear Divisors.- 1.1 Example.- 1.2 Time Response Calculation with Nonlinear Divisors.- 2 Linear Divisors.- 2.1 Example.
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Bibliographische Angaben
- Autor: Graham Rogers
- 2012, Softcover reprint of the original 1st ed. 2000, XI, 328 Seiten, Maße: 15,5 x 23,2 cm, Kartoniert (TB), Englisch
- Verlag: Springer, Berlin
- ISBN-10: 1461370590
- ISBN-13: 9781461370598
Sprache:
Englisch
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