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Multi Objective Compromise Programming In A Short Term Reservoir Operation Methodology
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Book Synopsis Multi-objective Compromise Programming in a Short-term Reservoir Operation Methodology by : Henry David Venema
Download or read book Multi-objective Compromise Programming in a Short-term Reservoir Operation Methodology written by Henry David Venema and published by . This book was released on 1990 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Managing Water Resources by : Slobodan P. Simonovic
Download or read book Managing Water Resources written by Slobodan P. Simonovic and published by Routledge. This book was released on 2012-05-23 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'This book bridges disciplines, previously confined to specialist journal publications, by providing a comprehensive overview of the systems analysis application to water resources. It is ideal for Masters-level courses in Water Resources Engineering where modern management techniques of optimization and modelling are highly important in the strategic management of a vital resource.' - Derek Clarke, University of Southampton, UK 'The great novelty of this book is that it presents in detail how fuzzy-set theory can be used in water resource system management. The author was one of the pioneers who opened up this new field and is considered to be one of the greatest experts in it.' - Rodolfo Soncini Sessa, Politecnico di Milano, Italy Water resources management is increasingly interdisciplinary and must take into account complex socioeconomic factors and environmental variables. This book describes the 'systems approach' and its application to contemporary water resources management, focusing on three main sets of tools: simulation, optimization and multi-objective analysis. This approach is presented within the context of sustainable planning and development under conditions of uncertainty. Managing Water Resources: Methods and Tools for a Systems Approach introduces system dynamic simulation as a tool for integrated modelling and contains coverage of the use of fuzzy sets for incorporating objective and subjective uncertainties. The book combines theory with many practical examples, as well as including programs and exercises on downloadable resources. It comprises both an advanced text for students of water resources and civil or environmental engineering and a practical guide for professionals. Published jointly with UNESCO and International Hydrological Programme
Book Synopsis Advances In Hydraulics And Water Engineering: Volumes I & Ii - Proceedings Of The 13th Iahr-apd Congress by : John Junke Guo
Download or read book Advances In Hydraulics And Water Engineering: Volumes I & Ii - Proceedings Of The 13th Iahr-apd Congress written by John Junke Guo and published by World Scientific. This book was released on 2002-07-18 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a wide range of recent advances in hydraulics and water engineering. It contains four sections: hydraulics and open channel flow; hydrology, water resources management and hydroinformatics; maritime hydraulics; ecohydraulics and water quality management. World authorities such as Mike Abbot, I Nezu, A J Metha, M Garcia and P Y Julien have contributed to the book.
Book Synopsis Multi-objective Non-linear Programming for the Optimal Operation of a Single Reservoir System by : Birhanu Mesfin Mengistu
Download or read book Multi-objective Non-linear Programming for the Optimal Operation of a Single Reservoir System written by Birhanu Mesfin Mengistu and published by . This book was released on 2008 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develops a practical application of a multi-objective non-linear optimization model for the optimal operation of reservior systems, and defines the system parameters and decision variables. Represents hydropower generation, irrigation, and flood protection as expected benefits and components of the multi-objective to be satisfied in an optimal manner. Finds the optimum benefit of the system for a number of scenarios and discusses the results. Emphasizes the difficulties of obtaining a direct solution when more than one objective enters into the model. Tests the model using data from the Folsom Reservoir near Sacramento, California, where maximizing revenue from hydropower and irrigated agricultural production and minimizing storage and power target deviations are desired.
Book Synopsis Managing Water Resources by : Slobodan P. Simonović
Download or read book Managing Water Resources written by Slobodan P. Simonović and published by Earthscan. This book was released on 2009 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2008. Routledge is an imprint of Taylor & Francis, an informa company.
Book Synopsis Multi-objective Optimization of Reservoir Operation Under Uncertainty with Robust and Flexible Decision Variables by : Parnian Hosseini
Download or read book Multi-objective Optimization of Reservoir Operation Under Uncertainty with Robust and Flexible Decision Variables written by Parnian Hosseini and published by . This book was released on 2017 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimization of reservoir operation is involves various competing objectives for a scarce resource (water). To find the optimal operation of reservoirs, it is essential to consider multiple objectives simultaneously. There are various sources of uncertainty associated with the reservoir operation problem that should be considered as well. The overarching goal of this research is to develop a framework for finding flexible and reliable solutions to the reservoir operation problem with competing objectives. Because some sources of uncertainty are not well quantified, providing flexible decision variables lets the decision maker choose accordingly from a range of options knowing that all the flexible decision variables are feasible with a specified probability of failure and that are relatively optimal. To accomplish this goal, each flexible decision variable is represented by a random variable within a specific range instead of a single deterministic decision variable. An additional objective is added to the optimization problem, in order to maximize the flexibility of decision variables. The proposed methodology is tested for two mathematical test problems and the operation of the Grand Coulee reservoir, which is located on the Columbia River in the Northwestern United States. The Stochastic Collocation (SC) method is used to sample the random variables and approximate the expected values of the objectives. For the Grand Coulee reservoir, the decision variables are the daily turbine outflows. The first objective of the optimization is to minimize the forebay elevation deviation at the end of the optimization period. The second objective is to maximize the revenue from the hydropower production. The results show that the proposed methodology could find some flexible decision variables with 45% coefficient of variation. The corresponding expected objectives have less than 20% deterioration from the deterministic Pareto solutions. However, the number of function evaluations increases exponentially with the number of decision variables. Therefore, this methodology is suggested for problems with a few decision variables. For finding flexible decision variables in problems with many decision variables, a dimension reduction method called Karhunen Loeve (KL) expansion is implemented in the optimization problem. By extracting useful information from the decision variables, the decision space can be represented with merely a few random variables using a set of deterministic decision variables. The results show that three random variables are sufficient to generate decision variable realizations which have mean and variance less than 1% and 5% different from the original decision variable realizations, respectively. The proposed methodology is capable of efficiently finding flexible decision variables that lead to expected objective values close to the Pareto deterministic solutions. To force the generated decision variable realizations to stay within the feasible bounds and therefore reduce the number of constraints that need to be checked, the data is transformed to be within bounds first, and then the KL-expansion is performed. Using the transformed data decreases the computational time but the decrease in computational time is not significant. The inflow uncertainty is also considered as the only source of input uncertainty. Forecast inflow ensembles can be used as the source of inflow uncertainty. However in this study due to lack of information, historical inflows are used instead. The inflow uncertainties are represented using the KL-expansion. Robust optimization is performed by optimizing the weighted sum of the expectation and standard deviation of the objective due to uncertain inflows. The weights in the robust objective formulation can be changed based on the decision maker’s preference of robustness versus performance. Finally, the combined framework to find robust and flexible decision variables is tested on a reservoir operation problem and the results were compared to the deterministic case.
Book Synopsis Real-time Operation of Reservoir Systems, Information Uncertainty, System Representation and Computational Intractability by :
Download or read book Real-time Operation of Reservoir Systems, Information Uncertainty, System Representation and Computational Intractability written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Software Abstracts for Engineers by :
Download or read book Software Abstracts for Engineers written by and published by . This book was released on 1992 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Real-time Operation of Reservoir Systems, Information Uncertainty, System Representation and Computational Intractability by :
Download or read book Real-time Operation of Reservoir Systems, Information Uncertainty, System Representation and Computational Intractability written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling real-time reservoir operations and developing optimal rules are formidable tasks considering a number of issues that need to be addressed within optimization and simulation models. The issues range from uncertain system inputs to implementation of operating rules in real-time. This dissertation addresses some of these issues that are relevant at different stages of real-time reservoir operation process. These issues are: (i) information uncertainty; (ii) system representation; and (iii) computational intractability. Realtime operation models are developed in the present research for single and multiple reservoir systems while addressing these issues in that order. Uncertainty generally associated with system variables in a variety of forms is a main hurdle in developing a proaches for optimizing reservoir operations. Explicit and implicit stochastic approaches based on traditional probability theory concepts cannot always handle all the uncertain elements of reservoir operation. Approaches to handle imprecise information are required as much as methodologies to address the issue of lack of information. The former issue described as information uncertainty in this thesis is addressed using fuzzy set theory. Mathematical programming models are developed under fuzzy environment to handle imprecise and uncertain components of reservoir operation problem dominated by an economic objective. The concept of 'compromise operating polices' is proposed and its utility is proved. Representation of physical system in mathematical programming formulations affects the extent to which the physics of the problem is captured and nature of the solutions that can be obtained. Tradeoffs between exhaustive representation and optimal solutions can be identified. Operation of a multiple reservoir system is considered to develop formulations of varying degree of system representation. A Mixed Integer Non-Linear Programming (MINLP) Model with binary variables is developed to a speci.
Book Synopsis Dynamic Programming Based Operation of Reservoirs by : K. D. W. Nandalal
Download or read book Dynamic Programming Based Operation of Reservoirs written by K. D. W. Nandalal and published by Cambridge University Press. This book was released on 2007-05-10 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic programming is a method of solving multi-stage problems in which decisions at one stage become the conditions governing the succeeding stages. It can be applied to the management of water reservoirs, allowing them to be operated more efficiently. This is one of the few books dedicated solely to dynamic programming techniques used in reservoir management. It presents the applicability of these techniques and their limits on the operational analysis of reservoir systems. The dynamic programming models presented in this book have been applied to reservoir systems all over the world, helping the reader to appreciate the applicability and limits of these models. The book also includes a model for the operation of a reservoir during an emergency situation. This volume will be a valuable reference to researchers in hydrology, water resources and engineering, as well as professionals in reservoir management.
Book Synopsis Multi-objective Evaluationary Techniques in Defining Optimal Policies for Real Time Operation of Reservoir Systems by : Chandrasekaran Sivapragasam
Download or read book Multi-objective Evaluationary Techniques in Defining Optimal Policies for Real Time Operation of Reservoir Systems written by Chandrasekaran Sivapragasam and published by . This book was released on 2002 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Hydrology and Climate Change by : Surendra Kumar Chandniha
Download or read book Advances in Hydrology and Climate Change written by Surendra Kumar Chandniha and published by CRC Press. This book was released on 2022-11-24 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlighting recent trends that employ innovative management and conservation approaches, this volume provides an informative overview of the issues and challenges in water resources affected by climate change, such as drought, flooding, glacier changes, and overbuilt-up urban areas. Focusing on surface and groundwater related issues, the book presents solutions that include such methods as morphometric assessment, parameter estimation, long-term trend analysis, sustainability indexes, storm water management models, entropy-based measurement of long-term precipitation, and more. The volume focuses on providing a better understanding of climatic uncertainty through hydrometeorological data sets and their application in hydrological modeling. These analyses help to serve as the basis for the design of flood-control and water-usage management policies.
Book Synopsis State of the Art Review by : William W-G. Yeh
Download or read book State of the Art Review written by William W-G. Yeh and published by . This book was released on 1982 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Operation of Multiple Reservoir Systems by : Zdzisław Kaczmarek
Download or read book The Operation of Multiple Reservoir Systems written by Zdzisław Kaczmarek and published by . This book was released on 1982 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nested algorithms for optimal reservoir operation and their embedding in a decision support platform by : Blagoj Delipetrev
Download or read book Nested algorithms for optimal reservoir operation and their embedding in a decision support platform written by Blagoj Delipetrev and published by CRC Press. This book was released on 2020-04-30 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir operation is a multi-objective optimization problem, and is traditionally solved with dynamic programming (DP) and stochastic dynamic programming (SDP) algorithms. The thesis presents novel algorithms for optimal reservoir operation, named nested DP (nDP), nested SDP (nSDP), nested reinforcement learning (nRL) and their multi-objective (MO) variants, correspondingly MOnDP, MOnSDP and MOnRL. The idea is to include a nested optimization algorithm into each state transition, which reduces the initial problem dimension and alleviates the curse of dimensionality. These algorithms can solve multi-objective optimization problems, without significantly increasing the algorithm complexity or the computational expenses. It can additionally handle dense and irregular variable discretization. All algorithms are coded in Java and were tested on the case study of the Knezevo reservoir in the Republic of Macedonia. Nested optimization algorithms are embedded in a cloud application platform for water resources modeling and optimization. The platform is available 24/7, accessible from everywhere, scalable, distributed, interoperable, and it creates a real-time multiuser collaboration platform. This thesis contributes with new and more powerful algorithms for an optimal reservoir operation and cloud application platform. All source codes are available for public use and can be used by researchers and practitioners to further advance the mentioned areas.
Book Synopsis Optimal Reservoir Operation Under Inflow Uncertainty by : Jinshu Li
Download or read book Optimal Reservoir Operation Under Inflow Uncertainty written by Jinshu Li and published by . This book was released on 2021 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stochastic programming is a mathematical model used to resolve the uncertainty of random variables in optimization problems. In reservoir management and operation, the reservoir inflow is typically regarded as a random variable as it brings most of the operation uncertainty. Although stochastic programming has been successfully applied to many reservoir managements cases, the pursuit of the improvement on its accuracy, efficiency, and applicability never ceases. This dissertation consists of five chapters. The first introductory presents the classical stochastic model and describes the challenges. Then, the second chapter develops a statistical model that focuses on improving the distribution fitting accuracy for the monthly average inflow as the random variable. The third chapter discusses a method aiming at streamflow scenario tree reduction, which is essential for alleviating the computational burden of a two-stage stochastic programming with recourse model. The fourth chapter expands the applicability of stochastic programming model, by introducing a multi-objective, multi-stage stochastic programming with recourse model. The final chapter offers conclusions, discussions, and potential future research opportunities.
Book Synopsis Multi-objective Optimization of Folsom Reservoir Operation by : Randi Cameron Field
Download or read book Multi-objective Optimization of Folsom Reservoir Operation written by Randi Cameron Field and published by . This book was released on 2007 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
