检索结果-内蒙古大学图书馆

mixed integer non-linear programming and Artificial Neural Network based approach to ancillary services dispatch in competitive electricity markets

引用

APPLIED ENERGY 2013年 108卷 261-270页

作者： Canizes, Bruno Soares, Joao Faria, Pedro Vale, Zita Polytech Porto IPP GECAD Knowledge Engn & Decis Support Res Ctr P-4200072 Oporto Portugal

Ancillary services represent a good business opportunity that must be considered by market players. This paper presents a new methodology for ancillary services market dispatch. The method considers the bids submitted to the market and includes a market clearing mechanism based on deterministic optimization. An Artificial Neural Network is used for day-ahead prediction of Regulation Down, regulation-up, Spin Reserve and non-Spin Reserve requirements. Two test cases based on California Independent System Operator data concerning dispatch of Regulation Down, Regulation Up, Spin Reserve and non-Spin Reserve services are included in this paper to illustrate the application of the proposed method: (1) dispatch considering simple bids;(2) dispatch considering complex bids. (c) 2013 Elsevier Ltd. All rights reserved.

关键词： Ancillary services Artificial Neural Networks Electricity markets linear programming mixed integer non-linear programming Power systems

来源：评论

学校读者我要写书评

暂无评论

mixed integer non-linear programming model for reliable and safer design at an early stage

引用

COMPUTERS & CHEMICAL ENGINEERING 2021年 147卷 107256-107256页

作者： Vazquez, Daniel Ruiz-Femenia, Ruben Caballero, Jose A. Univ Alicante Inst Chem Proc Engn PO 99 E-3080 Alicante Spain

We present a mixed integer non-linear programming (MINLP) model capable of choosing the best design considering economic profit, availability, and safety. The model takes into account the probability of suffering a failure in a year of operation, as well as the revenue generated and the probability of the process units of being in a non-functional state. The inclusion of programmed maintenances of a specified duration is considered in the model, assuming an equal distribution in the maintenances time. The performance of the model is illustrated by small examples to help the reader to better understand the model, before applying it to the methanol synthesis case study, where the economic and safety objectives are represented in a Pareto front. The results showcase the possibility of considering safety during the early design stage. ? 2021 Elsevier Ltd. All rights reserved.

关键词： Reliability Process safety mixed integer non-linear programming

来源：评论

学校读者我要写书评

暂无评论

Evolutionary algorithms approach to the solution of mixed integer non-linear programming problems

引用

COMPUTERS & CHEMICAL ENGINEERING 2001年第2-3期25卷 257-266页

作者： Costa, L Oliveira, P Univ Minho Dept Prod & Syst Engn P-4710 Braga Portugal

The global optimization of mixed integer non-linear problems (MINLP), constitutes a major area of research in many engineering applications. In this work, a comparison is made between an algorithm based on Simulated Annealing (M-SIMPSA) and two Evolutionary Algorithms: Genetic Algorithms (GAs) and Evolution Strategies (ESs). Results concerning the handling of constraints, through penalty functions, with and without penalty parameter setting, are also reported. Evolutionary Algorithms seem a valid approach to the optimization of non-linear problems. Evolution Strategies emerge as the best algorithm in most of the problems studied. (C) 2001 Elsevier Science Ltd. All rights reserved.

关键词： evolutionary algorithms genetic algorithms evolution strategies mixed integer non-linear programming

来源：评论

学校读者我要写书评

暂无评论

Optimal distributed generation location using mixed integer non-linear programming in hybrid electricity markets

引用

IET GENERATION TRANSMISSION & DISTRIBUTION 2010年第2期4卷 281-298页

作者： Kumar, A. Gao, W. Natl Inst Technol Dept Elect Engn Kurukshetra Haryana India Tennessee Technol Univ Energy Syst Res Ctr Dept Elect & Comp Engn Cookeville TN USA

This study presents mixed integer non-linear programming (MINLP) approach for determining optimal location and number of distributed generators in hybrid electricity market. For optimal location of distributed generation (DG), first the most appropriate zone has been identified based on real power nodal price and real power loss sensitivity index as an economic and operational criterion. After identifying the suitable zone, mixed integer non-linear programming approach has been applied to locate optimal place and number of distributed generators in the obtained zone. The non-linear optimisation approach consists of minimisation of total fuel cost of conventional and DG sources as well as minimisation of line losses in the network. The pattern of nodal real and reactive power prices, line loss reduction and fuel cost saving has been obtained. The results have also been obtained for pool electricity market model for comparison. The impact of demand variation on the results has also been obtained for both the market models. The proposed MINLP-based optimisation approach has been applied for IEEE 24 bus reliability test system.

关键词： power markets power system reliability distributed generation optimal location hybrid electricity markets nonlinear programming non-linear optimisation Reliability real power loss sensitivity index real power nodal price Power system management, operation and economics power system simulation Optimisation techniques mixed integer non-linear programming IEEE 24 bus reliability test system

来源：评论

学校读者我要写书评

暂无评论

Formulation and solution of distribution system voltage and VAR control with distributed generation as a mixed integer non-linear programming problem

引用

ELECTRIC POWER SYSTEMS RESEARCH 2014年第Mar.期108卷 164-169页

作者： Paaso, Esa A. Liao, Yuan Cramer, Aaron M. Univ Kentucky Dept Elect & Comp Engn Lexington KY 40506 USA

Coordinated voltage and VAR control (VVC) can provide major economic benefits for distribution utilities. Incorporating distributed generations (DG) for VVC can improve the efficiency and reliability of distribution systems. This paper presents an approach to formulate and solve distribution system VVC with DG units as a mixed integer non-linear programming (MINLP) problem. The method can be utilized to create an effective control scheme for both the traditional VVC devices and DG units. The MINLP formulation is based on three-phase power flow formulation, and is solved with an open-source BONMIN optimization solver with outer approximation (OA) algorithm. BONMIN is interfaced with Matlab via a third-party optimization toolbox. The proposed approach is applied to several distribution feeder models with promising results. (C) 2013 Elsevier B.V. All rights reserved.

关键词： Distributed generation mixed integer non-linear programming Outer approximation Reactive power control Voltage control

来源：评论

学校读者我要写书评

暂无评论

A Lagrangian augmented Hopfield network for mixed integer non-linear programming problems

引用

NEUROCOMPUTING 2002年第1-4期42卷 323-330页

作者： Dillon, JD O'Malley, MJ Natl Univ Ireland Univ Coll Dublin Dept Elect & Elect Engn Dublin 4 Ireland Elect Supply Board Natl Grid Dublin 2 Ireland

The augmented Lagrangian function has better convergence and solution properties for mixed integer non-linear programming problems than either standard Lagrangian function, or penalty function approaches. The Hopfield neural network based approaches that have been proposed to solve this function have used continuous neurons to represent discrete variables. The augmented Hopfield network has both discrete and continuous neurons. Here a Lagrangian augmented Hopfield network (LAHN) is constructed by including augmented Lagrangian multiplier neurons in the augmented Hopfield network. This new network is applied to the generator scheduling problem (a mixed integer non-linear programming problem) and results illustrate that improved solutions are obtained. (C) 2002 Elsevier Science B.V. All rights reserved.

关键词： Hopfield neural network augmented Lagrangian mixed integer non-linear programming

来源：评论

学校读者我要写书评

暂无评论

Numerical and environmental, considerations on a complex industrial mixed integer non-linear programming (MINLP) problem

引用

COMPUTERS & CHEMICAL ENGINEERING 1999年第10期23卷 1545-1561页

作者： Harjunkoski, I Westerlund, T Pörn, R Abo Akad Univ Proc Design Lab FIN-20500 Turku Finland Abo Akad Univ Dept Math FIN-20500 Turku Finland

In the present paper an essential problem in the process industry, the trim-loss problem, is considered. The problem can be identified in many different industries (for instance in the paper and metal industry) but here, the main focus is on the paper industry or more precisely, the paper-converting industry. In the trim-loss problem at a paper-converting mill, an optimal strategy is sought for cutting a wide raw-paper reel into narrower, customer-specified product reels in such a way that the appearance of waste, the trim loss, is minimized. Besides being a numerically challenging non-convex mixed integer non-linear programming problem, the choice of objective is of great importance and a non-trivial task in order to alter sustainable and environmentally benign solutions. Therefore, in the following some transformation techniques for overcoming bilinearity and solving the original problem into its global optimality are presented. The transformations are followed by an analysis and comparison of different ways to formulate the objective function. Finally, a set of example problems are solved in order to project the theoretical considerations to more practical level. (C) 1999 Elsevier Science Ltd. All rights reserved.

关键词： optimization mixed integer non-linear programming trim loss problems waste minimization

来源：评论

学校读者我要写书评

暂无评论

Application-oriented mixed integer non-linear programming

引用

4OR-A QUARTERLY JOURNAL OF OPERATIONS RESEARCH 2010年第3期8卷 319-322页

作者： D'Ambrosio, Claudia Univ Bologna DEIS I-40136 Bologna Italy

This is a summary of the author's PhD thesis supervised by Andrea Lodi and defended on 16 April 2009 at the University of Bologna. The thesis is written in English and available for download at http://***/staff_pages/dambrosio/Phd_Th_***. The main topic of the thesis is mixed integer non-linear programming, with focus on non-convex problems (i.e., problems for which the feasible region of the continuous relaxation is a non-convex set) and real-world applications. Different kinds of algorithms are presented: linearization methods, heuristic and global optimization algorithms. Also, different kinds of real-world applications are solved, arising, for example, from Hydraulic and Electrical Engineering problems. The last part of the thesis is devoted to software and tools for mixed integer non-linear programming problems.

关键词： mixed integer non-linear programming Real-world application non-convex Algorithms MlNLP tools

来源：评论

学校读者我要写书评

暂无评论

On the use of a mixed integer non-linear programming model for refrigerant design

引用

International Transactions in Operational Research 1997年第1期4卷 45-54页

作者： Churi, N. Achenie, L.E.K. University of Connecticut United States

In this paper, a novel mixed integer non-linear programming model for single component refrigerant design is presented. At the heart of the approach is a new formulation for structural feasibility that allows multiple bonds, connectivity and isomers. The strategy defines a set of structural groups (consisting of atoms), subsets of which are combined to form refrigerant molecules. Molecules formed this way must obey structural and stability constraints. The design objective is to build a refrigerant molecule that has desired physical properties and performance characteristics. These attributes are formulated as mathematical programming constraints and performance objectives which involve both continuous and integer variables. With the current renewed interest in the environment, the suggested approach is applied to refrigerant design with an environmental constraint. The results indicate the viability and the flexibility of the approach. © 1997 Wiley Periodicals, Inc.

关键词： Computer aided molecular design mixed integer non-linear programming Refrigerant Structural feasibility

来源：评论

学校读者我要写书评

暂无评论

Reliability-Security Constrained Unit Commitment Based on Benders Decomposition and mixed integer non-linear programming 1

Reliability-Security Constrained Unit Commitment Based on Be...

引用

International Conference on Computer Communications and Electronics (Comptelix)

作者： Gupta, Pranda Prasanta Jain, Prerna Sharma, Suman Bhakar, Rohit Malaviya Natl Inst Technol Dept Elect Engn Jaipur Rajasthan India

ISBN: (纸本)9781509047086

Reliability-Security Constrained Unit Commitment (RSCUC) with emphasis on mixed integer nonlinear programming (MINLP) and Benders Decomposition (BD) based on thermal generating units are presented in this paper. To solve unit commitment problem generalized BD along with reliability issues are considered. The approach presented in this work allows the decomposition of the whole program in quadratic mixed integer master program and network security check non-linear subproblem. The case study demonstrates the effectiveness of the proposed approach.

关键词： Security-constrained unit commitment Benders decompostion mixed integer non-linear programming reliabilty issues

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：