Download or read book The Next Generation of Electric Power Unit Commitment Models written by Benjamin F. Hobbs and published by . This book was released on 2014-09-17 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Next Generation of Electric Power Unit Commitment Models written by Benjamin F. Hobbs and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the years, the electric power industry has been using optimization methods to help them solve the unit commitment problem. The result has been savings of tens and perhaps hundreds of millions of dollars in fuel costs. Things are changing, however. Optimization technology is improving, and the industry is undergoing radical restructuring. Consequently, the role of commitment models is changing, and the value of the improved solutions that better algorithms might yield is increasing. The dual purpose of this book is to explore the technology and needs of the next generation of computer models for aiding unit commitment decisions. Because of the unit commitment problem's size and complexity and because of the large economic benefits that could result from its improved solution, considerable attention has been devoted to algorithm development in the book. More systematic procedures based on a variety of widely researched algorithms have been proposed and tested. These techniques have included dynamic programming, branch-and-bound mixed integer programming (MIP), linear and network programming approaches, and Benders decomposition methods, among others. Recently, metaheuristic methods have been tested, such as genetic programming and simulated annealing, along with expert systems and neural networks. Because electric markets are changing rapidly, how UC models are solved and what purposes they serve need reconsideration. Hence, the book brings together people who understand the problem and people who know what improvements in algorithms are really possible. The two-fold result in The Next Generation of Electric Power Unit Commitment Models is an assessment of industry needs and new formulations and computational approaches that promise to make unit commitment models more responsive to those needs.
Download or read book Electrical Power Unit Commitment written by Yuping Huang and published by Springer. This book was released on 2017-01-13 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in the SpringerBriefs in Energy series offers a systematic review of unit commitment (UC) problems in electrical power generation. It updates texts written in the late 1990s and early 2000s by including the fundamentals of both UC and state-of-the-art modeling as well as solution algorithms and highlighting stochastic models and mixed-integer programming techniques. The UC problems are mostly formulated as mixed-integer linear programs, although there are many variants. A number of algorithms have been developed for, or applied to, UC problems, including dynamic programming, Lagrangian relaxation, general mixed-integer programming algorithms, and Benders decomposition. In addition the book discusses the recent trends in solving UC problems, especially stochastic programming models, and advanced techniques to handle large numbers of integer- decision variables due to scenario propagation
Download or read book Analytic Research Foundations for the Next Generation Electric Grid written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-04-15 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electricity is the lifeblood of modern society, and for the vast majority of people that electricity is obtained from large, interconnected power grids. However, the grid that was developed in the 20th century, and the incremental improvements made since then, including its underlying analytic foundations, is no longer adequate to completely meet the needs of the 21st century. The next-generation electric grid must be more flexible and resilient. While fossil fuels will have their place for decades to come, the grid of the future will need to accommodate a wider mix of more intermittent generating sources such as wind and distributed solar photovoltaics. Achieving this grid of the future will require effort on several fronts. There is a need for continued shorter-term engineering research and development, building on the existing analytic foundations for the grid. But there is also a need for more fundamental research to expand these analytic foundations. Analytic Research Foundations for the Next-Generation Electric Grid provide guidance on the longer-term critical areas for research in mathematical and computational sciences that is needed for the next-generation grid. It offers recommendations that are designed to help direct future research as the grid evolves and to give the nation's research and development infrastructure the tools it needs to effectively develop, test, and use this research.
Download or read book Interfaces written by and published by . This book was released on 2005 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seeks to improve communication between managers and professionals in OR/MS.
Download or read book OR Models for Energy Policy Planning and Management written by and published by . This book was released on 2003 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Models to Inform Planning for the Future of Electric Power in the United States written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-08-25 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a reliable and resilient supply of electric power to communities across the United States has always posed a complex challenge. Utilities must support daily operations to serve a diverse array of customers across a heterogeneous landscape while simultaneously investing in infrastructure to meet future needs, all while juggling an enormous array of competing priorities influenced by costs, capabilities, environmental and social impacts, regulatory requirements, and consumer preferences. A rapid pace of change in technologies, policies and priorities, and consumer needs and behaviors has further compounded this challenge in recent years. The National Academies of Sciences, Engineering, and Medicine convened a workshop on February 3, 2020 to explore strategies for incorporating new technologies, planning and operating strategies, business models, and architectures in the U.S. electric power system. Speakers and participants from industry, government, and academia discussed available models for long-term transmission and distribution planning, as well as the broader context of how these models are used and future opportunities and needs. This publication summarizes the presentations and discussions from the workshop.
Download or read book International Energy Journal written by and published by . This book was released on 2005 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the ASME Turbo Expo written by and published by . This book was released on 2005 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Book Publishing Record written by and published by . This book was released on 2001 with total page 2744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The British National Bibliography written by Arthur James Wells and published by . This book was released on 2001 with total page 1864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unit Commitment in Electric Energy Systems written by Miguel F. Anjos and published by Foundations and Trends in Electric Energy Systems. This book was released on 2017-12-18 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unit commitment problem is a fundamental problem in the electric power industry. It addresses a fundamental decision that is taken when operating a power system, namely to set the schedule of power production for each generating unit in the system so that the demand for electricity is met at minimum cost. The schedule must also ensure that each unit operates within its technical limits; these typically include ramping constraints and minimum uptime/downtime constraints. Units that are scheduled to produce electricity during a given time period are said to be committed for that period. Unit Commitment in Electric Energy Systems presents the most relevant mathematical optimization models for the unit commitment problem. It is an ideal starting reference for practitioner and researchers interested in this important and challenging problem, as it introduces the key technical details and summarizing their significance.
Download or read book Including Ramping Constraints in the Electric Capacity Expansion Model written by Sarah Sleiman and published by . This book was released on 2015 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the long term electricity capacity expansion problem, operators attempt to make decisions years ahead of time on what generator types to invest in in order to meet future electricity needs. In such a model an approximate electricity demand forecast is used. Furthermore, short term generation variables such as ramping capabilities are ignored and reserved for short term planning models. Such simplified long term models have historically yielded good results due to the straightforward nature of operational details that are mainly related to fairly predictable demand patterns. With the increasing penetration of less predictable renewable energy sources however, operators of a system are expected to need to respond to added variability on the supply side of the system. Generators within a system will also need to have the ability to meet such variability and will potentially require higher ramping capabilities in order to respond to the intermittency of renewable energy sources. The work in this thesis illustrates that capturing short term constraints, such as the ramping constraints originally found in unit commitment models, in the long term capacity expansion model may result in a more realistic power output and capacity mix when planning future generation investments. Furthermore, a new set of constraints are also added to the model in an attempt to maintain some chronology that is required when dealing with the short term ramping constraints. Data from the Ontario Long Term Energy Plan (LTEP) and the Integrated Power System Plan (IPSP) is used for testing. In comparison with the original capacity expansion model, it is found that the inclusion of the ramping constraints yields a different investment plan that is concluded to be more realistic.
Download or read book Book Review Index written by and published by . This book was released on 2002 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INFORMS Conference Program written by Institute for Operations Research and the Management Sciences. National Meeting and published by . This book was released on 2000 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coordinated Integration of Distributed Energy Resources in Unit Commitment written by Usman Munawar and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed energy resources (DER), such as electric vehicles (EV) and roof-top solar panels have become increasingly popular and essential components of power distribution systems. However, their growth poses signi cant challenges to system operation, such as bidirectional power ow, intermittent power generation, increased peak demand, and unexpected frequency/voltage uctuation. In order to tackle these challenges, we developed a vehicle-to-grid (V2G) model, which incorporated dynamic EV usages, such as driving times, driving distance, and charging/discharging locations. In addition, solar forecasting models such as XGBoost, random forest, and arti cial neural networks were developed. We also developed a framework to evaluate and compare these models. To further improve the model's accuracy, feature engineering techniques such as principal component analysis (PCA) and feature importance were applied. The machine learning model having PCA and XGBoost was selected to develop the solar energy prediction model due to its 99.4% accuracy. i We also developed a novel unit commitment (UC) model to coordinate and aggregate the DERs in power generation economic dispatch. EV charging was used as elastic demand and EV discharging was used as power generation sources. Solar energy was considered as a negative load. Simulation results showed that uncontrolled EV charging and solar energy could negatively impact the power systems. For example, the load ramping rate was increased by 384%. Simulation results also showed that the proposed models could mitigate the negative impact and improve energy e ciency. For example, the peak demand, load ramping rate, and average generation cost were reduced by 21%, 79%, and 27%. To further increase the satisfaction level of the EVs owners by reducing EVs battery degradation, we proposed the dynamic EV discharging cost. This scenario reduces the peak demand, ramping rate of the load pro le, and average generation cost by 9%, 54%, and 18% as compared to the scenario with constant EV discharging cost. The proposed models can reduce generation costs, delay infrastructure investments, and reduce greenhouse gas emissions.
Download or read book Electric Energy Systems written by Antonio Gomez-Exposito and published by CRC Press. This book was released on 2018-06-14 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric Energy Systems, Second Edition provides an analysis of electric generation and transmission systems that addresses diverse regulatory issues. It includes fundamental background topics, such as load flow, short circuit analysis, and economic dispatch, as well as advanced topics, such as harmonic load flow, state estimation, voltage and frequency control, electromagnetic transients, etc. The new edition features updated material throughout the text and new sections throughout the chapters. It covers current issues in the industry, including renewable generation with associated control and scheduling problems, HVDC transmission, and use of synchrophasors (PMUs). The text explores more sophisticated protections and the new roles of demand, side management, etc. Written by internationally recognized specialists, the text contains a wide range of worked out examples along with numerous exercises and solutions to enhance understanding of the material. Features Integrates technical and economic analyses of electric energy systems. Covers HVDC transmission. Addresses renewable generation and the associated control and scheduling problems. Analyzes electricity markets, electromagnetic transients, and harmonic load flow. Features new sections and updated material throughout the text. Includes examples and solved problems.
