Download or read book Evaluation of Uncertainty in Dynamic Reduced order Power System Models written by James Richard Hockenberry and published by . This book was released on 2000 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reduced Order Modeling of Dynamic Systems for Decreasing Computational Burden in Uncertainty Quantification written by Brian Elliott Cohn and published by . This book was released on 2018 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Probabilistic Risk Assessment (DPRA) is a method that has demonstrated usefulness for safety analysis of nuclear power plants. DPRA is based on constructing computer models of a system and sampling the model many times to quantify the consequence and frequency of the impact of associated uncertainties. Since models of nuclear power plants are very complex and take many hours or days to run, using full scale plant modes is infeasible given the number of times models need to be run for such a purpose. Reduced order models (ROMs), which approximate the result of a more complex model, have seen use as a way of reducing the necessary computer resources. Several ROM options are considered for multiple systems to investigate their applicability. A procedure is presented for determining the applicability of different ROMs for seismic analysis. It is shown that a reduction in the number of necessary samples from 20,000 to fewer than 6,000 can be obtained with the choice of the appropriate ROM run, which is proportional to the run time.
Download or read book Model Validation and Uncertainty Quantification Volume 3 written by H. Sezer Atamturktur and published by Springer Science & Business Media. This book was released on 2014-04-11 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third volume of eight from the IMAC - XXXII Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Linear Systems Substructure Modelling Adaptive Structures Experimental Techniques Analytical Methods Damage Detection Damping of Materials & Members Modal Parameter Identification Modal Testing Methods System Identification Active Control Modal Parameter Estimation Processing Modal Data
Download or read book Interpolatory Methods for Model Reduction written by A. C. Antoulas and published by SIAM. This book was released on 2020-01-13 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamical systems are a principal tool in the modeling, prediction, and control of a wide range of complex phenomena. As the need for improved accuracy leads to larger and more complex dynamical systems, direct simulation often becomes the only available strategy for accurate prediction or control, inevitably creating a considerable burden on computational resources. This is the main context where one considers model reduction, seeking to replace large systems of coupled differential and algebraic equations that constitute high fidelity system models with substantially fewer equations that are crafted to control the loss of fidelity that order reduction may induce in the system response. Interpolatory methods are among the most widely used model reduction techniques, and Interpolatory Methods for Model Reduction is the first comprehensive analysis of this approach available in a single, extensive resource. It introduces state-of-the-art methods reflecting significant developments over the past two decades, covering both classical projection frameworks for model reduction and data-driven, nonintrusive frameworks. This textbook is appropriate for a wide audience of engineers and other scientists working in the general areas of large-scale dynamical systems and data-driven modeling of dynamics.
Download or read book The Determination of Reduced Order Models for Local and Global Analysis of Power Systems written by John Frederic Dorsey and published by . This book was released on 1980 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Abstracts for Policy Analysis written by and published by . This book was released on 1989 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Equivalent Modeling and Stability Analysis of Electric Power Systems written by Xuemeng Zhang and published by . This book was released on 2018 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interconnected power systems are increasing in both size and complexity. For such large-scale power systems, very accurate full-order dynamic system models are computational intensive to perform dynamic studies. In this paper, a measurement-based dynamic equivalent method is proposed to derive reduced models of large power systems. Specifically, a set of measurements at the boundary nodes between the study area and the external area are employed in model parameter identification. The proposed method is validated using simulation results obtained from both 140-bus NPCC system and 9,000-machine 70,000-bus U.S. Eastern Interconnection (EI) system. The results demonstrate that the measurement-based equivalent technique can capture the external system behaviors precisely. Compared with traditional generator equivalencing method, the proposed measurement-based model has higher accuracy but lower order and improved computational efficiency. The intermittence and fluctuation of renewable generations bring unprecedentedly challenges to the power system reliability and resilience. To keep the lights on after contingencies such as the loss of two largest generation units, it is imperative for a power system to have sufficient frequency response reserve (FRR) to ensure that the decay in system frequency would be arrested before triggering under frequency load shedding (UFLS) schemes. In this paper, a method to derive the EI minimum FRR requirement in real-time will be developed. This minimum FRR will help the EI operators decrease the current FRR requirement and accommodate more renewable generations while achieving a saving of both energy and facility costs. Most importantly, the ability to adaptively vary the FRR will provide the additional agility, resiliency, and reliability to the grid.
Download or read book Real time Grid Reliability Management written by and published by . This book was released on 2008 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uncertainties in Modern Power Systems written by Ahmed F. Zobaa and published by Academic Press. This book was released on 2020-10-26 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainties in Modern Power Systems combines several aspects of uncertainty management in power systems at the planning and operation stages within an integrated framework. This book provides the state-of-the-art in electric network planning, including time-scales, reliability, quality, optimal allocation of compensators and distributed generators, mathematical formulation, and search algorithms. The book introduces innovative research outcomes, programs, algorithms, and approaches that consolidate the present status and future opportunities and challenges of power systems. The book also offers a comprehensive description of the overall process in terms of understanding, creating, data gathering, and managing complex electrical engineering applications with uncertainties. This reference is useful for researchers, engineers, and operators in power distribution systems. Includes innovative research outcomes, programs, algorithms, and approaches that consolidate current status and future of modern power systems Discusses how uncertainties will impact on the performance of power systems Offers solutions to significant challenges in power systems planning to achieve the best operational performance of the different electric power sectors
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology for Large Space Systems written by and published by . This book was released on 1990 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Large Space Structures Systems in the Space Station Era written by and published by . This book was released on 1991 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Station Systems written by and published by . This book was released on 1986 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Simulation of Energy Systems written by Thomas A. Adams II and published by MDPI. This book was released on 2019-11-06 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy Systems Engineering is one of the most exciting and fastest growing fields in engineering. Modeling and simulation plays a key role in Energy Systems Engineering because it is the primary basis on which energy system design, control, optimization, and analysis are based. This book contains a specially curated collection of recent research articles on the modeling and simulation of energy systems written by top experts around the world from universities and research labs, such as Massachusetts Institute of Technology, Yale University, Norwegian University of Science and Technology, National Energy Technology Laboratory of the US Department of Energy, University of Technology Sydney, McMaster University, Queens University, Purdue University, the University of Connecticut, Technical University of Denmark, the University of Toronto, Technische Universität Berlin, Texas A&M, the University of Pennsylvania, and many more. The key research themes covered include energy systems design, control systems, flexible operations, operational strategies, and systems analysis. The addressed areas of application include electric power generation, refrigeration cycles, natural gas liquefaction, shale gas treatment, concentrated solar power, waste-to-energy systems, micro-gas turbines, carbon dioxide capture systems, energy storage, petroleum refinery unit operations, Brayton cycles, to name but a few.
Download or read book A Theoretical Approach to Analysis and Design of Efficient Reduced Control for Space Structures written by Hayrani Oz and published by . This book was released on 1990 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report develops concepts of efficiency for the control of structural dynamic systems. The efficiencies defined are unique nondimensional measures of structure control system performance forming a common basis of evaluation of such systems. Developments are presented both for distributed parameter systems and spatially discrete, typically finite element models of structural control systems are given by developing an efficiency modes analysis of controllers. The significance of relationship of controller efficiency modes to structural modes is studies. Based on these concepts, efficient model/ controller reduction approaches are developed. The efficiencies of systems with dynamic compensators including reduced order efficiency-state estimators are also developed. Illustrative examples based on the ACOSS-4 tetrahedral structure and the CSDL-ACOSS-6 (Model 2) as typical large space structures, are given. The research establishes that efficiency of structural control systems is a fundamental concept that must be addressed in any structure control system design. The efficiency measures also establish the performance of -dimensional systems on the basis of finite dimensional control design models.
Download or read book Recent Awards in Engineering written by and published by . This book was released on 1983 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
