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Dissertations / Theses on the topic 'Optimal power dispatch'

Author: Grafiati

Published: 23 September 2022

Last updated: 25 July 2025

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1

Ali, Habib K. "Mathematical modelling of the optimal power dispatch problem." Thesis, University of Strathclyde, 1990. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21285.

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This thesis is concerned with the optimum operating conditions in a power system. The various aspects of the problem are modelled and solved as a number of optimization problems applying linear programming techniques. A generalized linear mathematical model has been developed for this purpose. A two-stage formulation is adopted to represent the various problems considered. In each case one power system quantity is chosen as an objective function to be optimized under a number of constraints and operating limits relating to the power system relationships and upper and lower bounds on the variab

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2

Liu, Kai, and 劉愷. "Optimal dispatch and management for smart power grid." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46336680.

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Liu, Baicun. "Optimal power flow dispatch of variable wind generation." Thesis, Liu, Baicun (2016) Optimal power flow dispatch of variable wind generation. Honours thesis, Murdoch University, 2016. https://researchrepository.murdoch.edu.au/id/eprint/30812/.

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Wind power is one of the most popular renewable energy resources in the world. However, the variability of wind power leads to a situation in which a wind turbine only system cannot exist. Optimization of wind power flow dispatch is a long term work. And the variable wind generation in optimal power flow dispatching by mathematical model is an initial step in the operational process. It is because that the mathematical module in simulation software is almost no cost, simple and easy to go. The assumption in this thesis is that wind turbine is sited in the same location as the Plymouth.[8] The

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4

Basu, Meheli. "Optimal dispatch in Smart Power Grids with partially known deviation." Thesis, University of Iowa, 2015. https://ir.uiowa.edu/etd/1825.

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Power grid is an interconnected system of supplying electricity from the supplier to the consumer, consisting of electricity generating plant, high voltage transmission lines- to carry electricity from the generating plant to the load center, and distribution lines- to carry electricity from load centers to individual consumers. A lot of research is being pursued to develop technologies for improving the next generation of power grid called the Smart Power Grid. The Smart Power Grid will have sophisticated communication infrastructure to improve the efficiency of electricity generation using r

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5

Cho, Brian Bumseok. "A distributed control approach to optimal economic dispatch of power generators." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/787.

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In this dissertation, we propose a novel distributed approach to the control of generators in the electric grid. Specifically, we consider the problem of the optimal economic dispatch of generator; we present a simple, distributed algorithm, which adjusts the power-frequency set-points of generators to correct for power imbalances arising from generation and load fluctuations. In this algorithm each generator independently adjusts its real-power output based on its estimate of the aggregate power imbalance in the network; such as an estimate can be independently obtained by each generator thro

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Abuella, Mohamed A. "STUDY OF PARTICLE SWARM FOR OPTIMAL POWER FLOW IN IEEE BENCHMARK SYSTEMS INCLUDING WIND POWER GENERATORS." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/theses/991.

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AN ABSTRACT OF THE THESIS OF Mohamed A. Abuella, for the Master of Science degree in Electrical and Computer Engineering, presented on May 10, 2012, at Southern Illinois University Carbondale. TITLE:STUDY OF PARTICLE SWARM FOR OPTIMAL POWER FLOW IN IEEE BENCHMARK SYSTEMS INCLUDING WIND POWER GENERATORS MAJOR PROFESSOR: Dr. C. Hatziadoniu, The aim of this thesis is the optimal economic dispatch of real power in systems that include wind power. The economic dispatch of wind power units is quite different of conventional thermal units. In addition, the consideration should take the intermittency

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7

Yasmeen, Aneela. "A Distributed Algorithm for Optimal Dispatch in Smart Power Grids with Piecewise Linear Cost Functions." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/4930.

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We consider the optimal economic dispatch of power generators in a smart electric grid for allocating power between generators to meet load requirements at minimum total cost. We assume that each generator has a piece-wise linear cost function. We first present a polynomial time algorithm that achieves optimal dispatch. We then present a decentralized algorithm where, each generator independently adjusts its power output using only the aggregate power imbalance in the network, which can be observed by each generator throug

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8

Mohammadi, Javad. "Distributed Computational Methods for Energy Management in Smart Grids." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/710.

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It is expected that the grid of the future differs from the current system by the increased integration of distributed generation, distributed storage, demand response, power electronics, and communications and sensing technologies. The consequence is that the physical structure of the system becomes significantly more distributed. The existing centralized control structure is not suitable any more to operate such a highly distributed system. This thesis is dedicated to providing a promising solution to a class of energy management problems in power systems with a high penetration of distribut

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9

Kodsi, Sameh. "Accounting for the Effects of Power System Controllers and Stability on Power Dispatch and Electricity Market Prices." Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/930.

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Recently, the widespread use of power system controllers, such as PSS and FACTS controllers, has led to the analysis of their effect on the overall stability of power systems. Many studies have been conducted to allocate FACTS controllers so that they achieve optimal power flow conditions in the context of Optimal Power Flow (OPF) analysis. However, these studies usually do not examine the effect of these controllers on the voltage and angle stability of the entire system, considering that the types of these controllers and their control signals, such as reactive power, current, or voltage

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10

Karimishad, Amir. "Transient stability-constrained load dispatch, ancillary services allocation and transient stability assessment procedures for secure power system operation." University of Western Australia. Energy Systems Centre, 2008. http://theses.library.uwa.edu.au/adt-WU2009.0028.

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[Truncated abstract] The present thesis is devoted to the development of new methods for transient stability-constrained optimal power flow, probabilistic transient stability assessment and security-constrained ancillary services allocation. The key objective of the thesis is to develop novel dispatch and assessment methods for power systems operation in the new environment of electricity markets to ensure power systems security, particularly transient stability. A new method for economic dispatch together with nodal price calculations which includes transient stability constraints and, at the

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11

Min, Liang. "Decomposition algorithms for multi-area power system analysis." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5919.

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A power system with multiple interconnected areas needs to be operated coordinately for the purposes of the system reliability and economic operation, although each area has its own ISO under the market environment. In consolidation of different areas under a common grid coordinator, analysis of a power system becomes more computationally demanding. Furthermore, the analysis becomes more challenging because each area cannot obtain the network operating or economic data of other areas. This dissertation investigates decomposition algorithms for multi-area power system transfer capability analys

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12

Amorim, Elizete de Andrade [UNESP]. "Fluxo de potência ótimo em sistemas multimercados através de um algorítmo evolutivo multiobjetivo." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/100376.

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Made available in DSpace on 2014-06-11T19:30:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-07-21Bitstream added on 2014-06-13T19:00:51Z : No. of bitstreams: 1 amorim_ea_dr_ilha.pdf: 1200042 bytes, checksum: 598a8d060889d642964ac8c022c167e1 (MD5)<br>Esta pesquisa tem por objetivo o desenvolvimento de uma ferramenta computacional para a solução do problema de Fluxo de Potência Ótimo Multimercado (FPOM). O problema de fluxo de potência ótimo mutimercado é decomposto em vários subproblemas, uma para cada, submercado que compõe o sistema de potência interconectado. O modelo de decompo

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Alex, Ansu. "Tidal stream energy integration with green hydrogen production : energy management and system optimisation." Thesis, Normandie, 2022. http://www.theses.fr/2022NORMC216.

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L'objectif principal de cette thèse est de concevoir, mettre en œuvre et comparer différentes stratégies de gestion de l'énergie et approches d'optimisation pour un système hybride impliquant l'intégration de l'énergie marémotrice flottante avec la production de l'hydrogène vert. Pour atteindre les objectifs, les composants individuels du système sont d'abord modélisés. Les capacités annuelles de performance du système de la centrale d'énergie marémotrice ont ensuite été obtenues à l'aide des profils quotidiens fréquents au poste d'amarrage de Fall of Warness dans les îles Orcades. Les modes d

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Amorim, Elizete de Andrade. "Fluxo de potência ótimo em sistemas multimercados através de um algorítmo evolutivo multiobjetivo /." Ilha Solteira : [s.n.], 2006. http://hdl.handle.net/11449/100376.

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Orientador: José Roberto Sanches Mantovani<br>Banca: Rubén Augusto Romero Lázaro<br>Banca: Carlos Roberto Minussi<br>Banca: Geraldo Roberto Martins da Costa<br>Banca: Antônio César Baleeiro Alves<br>Resumo: Esta pesquisa tem por objetivo o desenvolvimento de uma ferramenta computacional para a solução do problema de Fluxo de Potência Ótimo Multimercado (FPOM). O problema de fluxo de potência ótimo mutimercado é decomposto em vários subproblemas, uma para cada, submercado que compõe o sistema de potência interconectado. O modelo de decomposição utilizado permite resolver o problema de FPO consi

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15

Modesto, Sonia Angelina Garcia. "Um modelo de despacho e pré-despacho de retaivas através de algoritmos genéticos, fluxo de potência ótimo e busca tabu = A model of reactive dispatch and a model of short-term reactive operation planning through geneti algorithms, optimal power flow and search tabu." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261159.

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Orientador: Takaaki Ohishi<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-21T16:39:20Z (GMT). No. of bitstreams: 1 Modesto_SoniaAngelinaGarcia_D.pdf: 7966542 bytes, checksum: e394ce8619b189ec96e83326835c45df (MD5) Previous issue date: 2003<br>Resumo: Esta tese trata do problema de planejamento da operação de curto prazo (operação diária) de reativos. A Cadeia de Planejamento do Setor Elétrico brasileiro inicia com um Planejamento de Longo Prazo, o qual considera a operação do sistema através de

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Kasmaei, Mahdi Pourakbari. "Despacho ótimo de potências ativa e reativa de sistema elétricos multi-áreas considerando restrições físicas, econômicas e ambientais = Envronmentally constrained active-reactive optimal power flow-a compromising strategy for economic-emission dispatch and a multi-area paradigm /." Ilha Solteira, 2015. http://hdl.handle.net/11449/126414.

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Orientador: José Roberto Sanches Mantovani<br>Banca: Ruben Augusto Romero Lazaro<br>Banca: Antonio Padilha Feltrin<br>Banca: Elizete de Andrade Amorim<br>Banca: Roberto Chouhy Leborgne<br>Resumo: Nos estudos de planejamento da operação de sistemas de energia elétrica a formulação e solução dos problemas de despacho econômico-ambiental e multi-área são considerados dois problemas de otimização desafiadores. Neste trabalho propõem-se dois novos modelos matemáticos que visam contribuir e contornar algumas desvantagens dos modelos existentes na literatura para os problemas de fluxo de potência óti

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Kasmaei, Mahdi Pourakbari [UNESP]. "Despacho ótimo de potências ativa e reativa de sistema elétricos multi-áreas considerando restrições físicas, econômicas e ambientais =: Envronmentally constrained active-reactive optimal power flow-a compromising strategy for economic-emission dispatch and a multi-area paradigm." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/126414.

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Made available in DSpace on 2015-08-20T17:09:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-02-21. Added 1 bitstream(s) on 2015-08-20T17:26:33Z : No. of bitstreams: 1 000842739.pdf: 2853860 bytes, checksum: e865f5bbf60a5ebbea741caed7414898 (MD5)<br>Nos estudos de planejamento da operação de sistemas de energia elétrica a formulação e solução dos problemas de despacho econômico-ambiental e multi-área são considerados dois problemas de otimização desafiadores. Neste trabalho propõem-se dois novos modelos matemáticos que visam contribuir e contornar algumas desvantagens dos modelos e

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18

Altimari, Márcia Marcondes Rezende Simões. "Uma estratégia ótima para o despacho de potência ativa AC com restrição na transmissão." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-16112017-123038/.

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Neste trabalho realizamos um estudo do Despacho de Potência Ativa AC, o qual é uma estratégia de alocação da geração de potência entre as usinas de um sistema. Para isto, obtivemos dados teóricos, a partir de levantamento bibliográfico, que explicitaram os conceitos de Despacho Ativo. Fundamentamos, metodologicamente, nossa pesquisa no Método da Função Lagrangeana Aumentada. O sistema de equações resultantes das condições de otimalidade foram resolvidos pelo Método de Newton Modificado. Apresentamos os resultados de estudos de casos acadêmicos para a validação e verificação da eficiência da ab

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19

Baroche, Thomas. "Marchés pair-à-pair de l’électricité dans les réseaux électriques." Thesis, Rennes, École normale supérieure, 2020. http://www.theses.fr/2020ENSR0022.

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Le déploiement de ressources énergétiques distribuées, combiné à une gestion plus pro-active de la demande et à l'intégration de systèmes de gestion d'énergie, fait entrer l'exploitation des systèmes électriques et des marchés de l'électricité dans un nouveau paradigme. En partie liés à leur structure décentralisée, les marchés dits pair-à-pair ont gagné un intérêt considérable. Les marchés pair-à-pair reposent sur des négociations bilatérales entre les agents pour faire correspondre l'offre et la demande. De plus, ils peuvent cartographier l’ensemble des échanges possibles, ce qui permet de r

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Chung, Tak Shing. "An integrated approach incorporating dynamic and static security limits in optimum power dispatch." Thesis, University of Strathclyde, 1993. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=20375.

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Optimum power dispatch is performed in a power system to determine the most economic power dispatch condition for a certain system loading. In this thesis the main focus is on the investigation of this problem and its improved application by including both dynamic security and static security limits in its solution. The aim is to develop an efficient and practical on-line method of optimum power dispatch with due regard to the necessary security requirements. A critical review of the current practices of security and optimization in power system operation shows that they are essential elements

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Freire, Rene Cruz. "Otimização natural multiobjetivo como ferramenta para desvio mínimo de pontos de operação considerando restrições de segurança." Niterói, 2017. https://app.uff.br/riuff/handle/1/3927.

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Submitted by Patrícia Cerveira (pcerveira1@gmail.com) on 2017-06-13T15:56:56Z No. of bitstreams: 1 Rene_Cruz_Freire.pdf: 5170376 bytes, checksum: 8c6b6dd8986d23b53ae99ba90dd69ef5 (MD5)<br>Approved for entry into archive by Biblioteca da Escola de Engenharia (bee@ndc.uff.br) on 2017-06-29T16:38:47Z (GMT) No. of bitstreams: 1 Rene_Cruz_Freire.pdf: 5170376 bytes, checksum: 8c6b6dd8986d23b53ae99ba90dd69ef5 (MD5)<br>Made available in DSpace on 2017-06-29T16:38:47Z (GMT). No. of bitstreams: 1 Rene_Cruz_Freire.pdf: 5170376 bytes, checksum: 8c6b6dd8986d23b53ae99ba90dd69ef5 (MD5)<br>Coordenação de Aper

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Leuthold, Florian U. "Economic Engineering Modeling of Liberalized Electricity Markets: Approaches, Algorithms, and Applications in a European Context." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-26135.

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This dissertation focuses on selected issues in regard to the mathematical modeling of electricity markets. In a first step the interrelations of electric power market modeling are highlighted a crossroad between operations research, applied economics, and engineering. In a second step the development of a large-scale continental European economic engineering model named ELMOD is described and the model is applied to the issue of wind integration. It is concluded that enabling the integration of low-carbon technologies appears feasible for wind energy. In a third step algorithmic work is carri

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Liu, ChingYi, and 劉清億. "The Research of Optimal Power Dispatch." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/34918277382316755881.

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碩士<br>元智大學<br>資訊管理研究所<br>93<br>In a power distribution system, all substations have their own equipment capacity to offer their power-supply area enough power. But sometimes the peak loads in their power-supply area are over than their equipment capacity. Therefore, the other substations in the same power-supply area have to offer their power aid to the one who needs the power. However, it’s hard to determine which is the best substation to be the transferred to and power transmission path that leads the minimal power loss. We apply genetic algorithm for searching optimal power transfer order

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Lee, Kai-Xiang, and 李凱翔. "Optimal Reactive Power Dispatch of Transmission Systems." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/8r3s96.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>94<br>Reactive power dispatch is one of the major research topics in power system operation and planning. Optimal reactive power dispatch is one kind of multi-objective optimization problems. The goals of this thesis include voltage magnitude of load buses within reasonable region, reducing real power loss of transmission line, and good performance of voltage stability. They can avoid the risk of voltage collapse owing to load demand change or contingencies, get good voltage security and cost reduction. This thesis proposed two methods of particle swarm optimization

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Lu, Shao-An, and 呂紹安. "Optimal Power Dispatch Planning under CO2 Emission Consideration." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/02474523137024796016.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>98<br>In this thesis, the optimal power dispatch planning considering the emission of carbon dioxide (CO2) is presented. First, different CO2 equivalent models for fossil fuel generating units are derived. Secondly, two index, the Cost-CO2 emission Tradeoff Curve (CCTC) and Incremental Cost for CO2 Reduction (ICCR) curve, are introduced to assess the impact of the carbon dioxide emission on the generation cost. Incorporating with the aforementioned index, the single-objective and bi-objective programming methods are employed to establish the power dispatching strateg

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CHIANG, YU-CHUAN, and 江昱銓. "Optimal Reactive Power Dispatch Using Ordinal Optimization Algorithm." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/98yp44.

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碩士<br>高苑科技大學<br>電子工程研究所<br>105<br>In this paper, we propose an Ordinal Optimization (OO) algorithm for the solution of the Optimal Reactive Power Dispatch (ORPD) problem. The main objective of QRPD is to minimize active power loss and improve the voltage profile of power systems. Our algorithm consists of three stages. This work first constructed a crude but efficient model from a sample space. Then, a scheme with enhanced accuracy based on sensitivity theory was applied to identify the top samples to form the selected subset. Finally, we obtain a good enough solution with smallest objective v

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Kuan-ChihTung and 董冠志. "Optimal Scheduling of Electric Energy for Microgrid Power Dispatch." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/cpau37.

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Husan, Yu-Chen, and 宣宇晨. "Study on Microgrid Power Dispatch by Optimal Load Shifting." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6mj797.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>106<br>This thesis applies optimal load shifting to microgrid power dispatch. First of all, a commercial software Solar Pro is used to create a solar PV system model and to simulate their power generation. The Weibull probability density distribution is used to create a wind speed model and calculate its power generation. Then, this paper uses the fmincon, the built-in function of Matlab® for optimal load shifting of users. Users change their electricity consumption habit according to different time-of-use and dynamic electricity pricing to achieve the goal of stabil

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Jung, Tay Ho. "Optimal reactive power dispatch based on a multiobjective optimization technique." 1988. http://catalog.hathitrust.org/api/volumes/oclc/18826554.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1988.<br>Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 148-160).

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Lu, Nai-Yen, and 盧乃彥. "Optimal Active-Reactive Power Dispatch Using a Hybrid Taguchi-Genetic Algorithm." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/2rsy4s.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>100<br>This paper presents a new approach to solve optimal active-reactive power dispatch problem in power systems by using a hybrid Taguchi-genetic algorithm. In the past researches, the active power dispatch and the reactive power dispatch are discussed separately. As a result, an intelligent control method is proposed to integrate theses two dispatch into one optimal power dispatch simultaneously in order to obtain a more complete optimization. The objective function combine with minimizing the fuel cost, which is associated with the economic dispatch, and redu

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GUAN-CHIH, PU, and 蒲冠志. "Short Term Real/Reactive Power Load Forecasting and Dynamic Optimal Dispatch." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/12766221334530619211.

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博士<br>國立臺灣科技大學<br>電機工程技術研究所<br>86<br>The optimal dispatch of real/reactive power in a deregulated power system over a short period of time is investigated in this dissertation. The generation plants, transmission system and distribution systems will be separately owned under this condition. The consideration of profits of power producers, system- wide benefits and system security to determine the optimal dispatch pattern then becomes a significant task of the independent system operator (ISO). In this dissertation, the sensitivity factors are used to s

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Kao, Pei-Chun, and 高培鈞. "Artificial Bee Colony Algorithm for Multiple Objectives Optimal Power Dispatch Study." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/88w57z.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>105<br>The traditional economic dispatch method has considered a single object function which is to minimize the generation cost. In fact, there are more than one object with related constraints to consider meeting the power demand requirements. In practical system, the problems have more than one object function to be optimized. These objectives normally conflict each others. In recent years, due to the rise of environmental awareness. For example, we optimized the generation cost as main objective, it might cause other cost increasing if we neglect line loss and p

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Tsai, Yeong-Sheng, and 蔡永勝. "Ant Colony System for Optimal Reactive Power Dispatch of Transmission Systems." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/4t8tw3.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>95<br>Reactive power dispatch is one of the major research topics in power system operation and planning. Reactive loads in a power system can cause phase differences for voltages and currents, leading to voltages drop and power loss in power lines. Optimal reactive power dispatch is accordingly adopted to solve the problems. This thesis proposes to apply Ant Colony System(ACS) to facilitate the multi-objective optimal reactive power dispatch for transmission systems. The proposed application aims at achieving three major purposes: regulating voltage magnitude of

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Hsia, Cho-Yen, and 夏倬彥. "An Immune Algorithm for Optimal Reactive Power Dispatch of Transmission Systems." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/623y62.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>96<br>For raising power system quality, efficiency and safety, reactive power dispatch is an important cause and accordingly adopted to solve problems. This thesis proposes to apply Immune Algorithm to facilitate the multi-objective optimal reactive power dispatch for transmission systems. The aims are achieving three major purposes: regulating voltage magnitude of load buses within a reasonable region, reducing real power loss of transmission line, and avoid the risk of voltage collapse owing to load demand change or contingencies. Immune Algorithm developed

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Murthy, Kandukuri Sanyasa Linga. "On some aspects of optimal real and reactive power dispatch for integrated power systems." Thesis, 1987. http://localhost:8080/xmlui/handle/12345678/5411.

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Kung, Hsi-chia, and 龔錫家. "Study on Optimal Demand Dispatch Platform Based on a Power Supervisory Control System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/223dpe.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>95<br>Due to the rapid increasing of energy price, the importance of electricity supervisory control and demand side management will get more and more attention. For the university campus, traditional electricity management systems only takes the whole campus as a single user. The individual department doesn’t have incentives to encourage its self energy reduction. Besides, the electricity bill sharing mechanism usually doesn’t take the over-demand charge into consideration. In this thesis, an optimal power demand dispatch method based on the market-oriented programm

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Lin, Yi-Hsiang, and 林意祥. "Application of Quantum Genetic Algorithm for Optimal Reactive Power Dispatch of Transmission Systems." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/przvsg.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>101<br>Reactive loads in a power system can cause phase shifts for voltages and currents, leading to voltages drop and power loss in power system. Therefore, reactive power dispatch for power system operation and planning purposes is a very important issue. This thesis proposes a new method which applies Quantum Genetic Algorithm (QGA), and uses power flow to reactive power optimization dispatch for the transmission system. Keeping each of the power system load bus voltage in a reasonable range, and minimizing loss of effective power transmission line are the maj

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Yu, Chao-Tung, and 余兆東. "Optimal Active-Reactive Power Dispatch Using a Non-dominated Sorting Genetic Algorithm II." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/rdnqdg.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>102<br>The thesis using the multi-objective optimization algorithm to solve the optimal active-reactive power dispatch problem in power system. There are many research about reactive power dispatch and economic dispatch with different evolution algorithm had been discussed individually. The thesis integrates both of them by multi-objective optimization algorithm. The object is to obtain less transmission loss and minimum cost by non-dominated solutions at same time. The hardest part of the multi-objective function is to evaluate the value of the fitness. Therefore

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Chiu, Hao-Jung, and 邱浩榮. "A Study on an Optimal Bid-Commitment-Dispatch Problem under Deregulated Power Environments." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/11206164388647332619.

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碩士<br>義守大學<br>電機工程學系<br>89<br>Utilities around the world are confronted with the impact of a deregulation trend in the electric power industry. To make our country more grandly competitive, the government is aggressively working toward the liberalization of electric power industry, such as privatizing the power generation plants, encouraging the investment of co-generation plants, and revising the related regulation rules and laws for the new competitive power marketplace. The main object of this thesis is to investigate the optimal bid-commitment-dispatch problem under the framewor

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Agbugba, Emmanuel Emenike. "Hybridization of particle Swarm Optimization with Bat Algorithm for optimal reactive power dispatch." Diss., 2017. http://hdl.handle.net/10500/23630.

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This research presents a Hybrid Particle Swarm Optimization with Bat Algorithm (HPSOBA) based approach to solve Optimal Reactive Power Dispatch (ORPD) problem. The primary objective of this project is minimization of the active power transmission losses by optimally setting the control variables within their limits and at the same time making sure that the equality and inequality constraints are not violated. Particle Swarm Optimization (PSO) and Bat Algorithm (BA) algorithms which are nature-inspired algorithms have become potential options to solving very difficult optimization problem

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Lee, Hang-Sheng, and 李亨聲. "Optimal Reactive Power Dispatch of Transmission Systems UsingGenetic Algorithm and Artificial Neural Networks." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/b62732.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>93<br>This thesis aims to do the optimal reactive power dispatch of transmission systems. The purpose is to assist dispatch persons to do more correct, economic, and secure dispatch. The dispatch of reactive power is important and difficult to do. Nowadays, the dispatches are almost from operators'' experiences. The compensators of over-voltage or under-voltage are used. However, the large amount of underground cables are built to power systems, the dynamic and steady-state stability is different from those before the Sixth transmission systems. The assistant from o

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Kuo, Tzu-Hsiang, and 郭子祥. "Study of the Optimal Reactive Power Dispatch for Wind Power Systems by using Charged System Search Algorithm." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/wrn977.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>102<br>Problems on reactive power and voltage control are significant for power systems. Suitable adjustment can not only reduce active power loss, but improve voltage stability so as to maintain a stable operation. Traditional reactive power dispatch methods use the adjustment of generator terminal voltage, load taps of transformers in substations, and reactive power compensation devices to control voltage and enhance the supply quality. Traditional systems only considered the effect of load variations on the system voltage and reactive power, and associated techno

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LIN, CHIH-CHIANG, and 林志強. "Optimal of Natural Gas Power Plant Dispatch Model - Considering Both Environmental and Economic Factors." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/r82dbk.

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碩士<br>國立中央大學<br>環境工程研究所在職專班<br>103<br>Due to the concerns of climate change and the rise of environmental protection consciousness, operation of electricity-generation system should take economics and environmental protection into account to achieve better overall competitiveness and sustainable management. This thesis proposes an optimal dispatch model by considering fuel consumption and environmental factors including CO2 and NOx emissions from a natural gas power plant. At first, a mathematical model considering the cost of fuel, CO2 and NOx emission was constructed by compiling the informa

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Wang, Jia-ching, and 王嘉慶. "Multi-Objective Optimal Active/Reactive Power Dispatch with Considering Load and Wind Generation Uncertainties." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/50319574254348538928.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>102<br>There are two parts of problem discussed in this thesis. The first part is multi-objective optimal reactive power dispatch problem. In this problem, the optimal solution is found under the condition which the active power of power generators of PV buses are assumed to be known and fixed. By controlling the load tap changer of transformers, reactive power output of capacitors, and voltage of slack bus and PV buses, the loss of transmission lines and the voltage deviation of load buses can be reduced. To make less cost of power generation, the second part tha

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Wu, Hung-chen, and 吳鴻辰. "Optimal Power Dispatch and CCHP Assessment of Microgrid System Using Improved Bee Swarm Optimization." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/56261925753739047305.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>103<br>Under the guidance of international energy event occurred and international agreements, so Energy Saving and Carbon Reduction have already become an important issue in every county. However, the advances in green power not only provided alternative programs, but also reduced environmental pollution when using traditional way to produce energy. As increasing those unstable supply of green power. It must do some impact on traditional power grid. Such as power quality, system reliability, cost of power, etc. Therefore a microgrid which can quick react and dispa

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Jr, Melanio Pech, and 米蘭諾. "Optimal Dispatch with Minimal Power Transmission Loss Using a Novel Neighbor-Influenced Particle Swarm." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/73936340876016011109.

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碩士<br>國立清華大學<br>資訊系統與應用研究所<br>100<br>As a swarm intelligent technique, particle swam optimization (PSO) is inherently an evolutionary algorithm that simulates the animal collective behaviors. Since each individual has a different experience based on its position, each particle produces its own movement based on these experiences. The original PSO lacks deeper interaction between individuals at a local level. This implementation of PSO will explore the influence that individuals in its neighborhood have on its search and how it can improve on the capabilities of PSO. Therefore, in this study, a

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Soroush, Milad. "Accuracies of Optimal Transmission Switching Heuristics Based on Exact and Approximate Power Flow Equations." Thesis, 2013. http://hdl.handle.net/10012/7584.

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Optimal transmission switching (OTS) enables us to remove selected transmission lines from service as a cost reduction method. A mixed integer programming (MIP) model has been proposed to solve the OTS problem based on the direct current optimal power flow (DCOPF) approximation. Previous studies indicated computational issues regarding the OTS problem and the need for a more accurate model. In order to resolve computational issues, especially in large real systems, the MIP model has been followed by some heuristics to find good, near optimal, solutions in a reasonable time. The line removal re

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Li, Xiaoguang. "Estimating Wind Forecast Errors and Quantifying Its Impact on System Operations Subject to Optimal Dispatch." Thesis, 2011. http://hdl.handle.net/1807/31312.

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Wind power is being added to the supply mix of numerous jurisdictions, and an increasing level of uncertainties will be the new reality for many system operators. Accurately estimating these uncertainties and properly analyzing their effects will be very important to the reliable operation of the grid. A method is proposed to use historical wind speed, power, and forecast data to estimate the potential future forecast errors. The method uses the weather conditions and ramp events to improve the accuracy of the estimation. A bilevel programming technique is proposed to quantify the effects

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Caballero, Renzo. "Stochastic Optimal Control of Renewable Energy." Thesis, 2019. http://hdl.handle.net/10754/655846.

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Uruguay is a pioneer in the use of renewable sources of energy and can usually satisfy its total demand from renewable sources. Control and optimization of the system is complicated by half of the installed power - wind and solar sources - be- ing non-controllable with high uncertainty and variability. In this work we present a novel optimization technique for efficient use of the production facilities. The dy- namical system is stochastic, and we deal with its non-Markovian dynamics through a Lagrangian relaxation. Continuous-time optimal control and value function are found from the solution

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Farhat, Ibrahim A. "Economic and Economic-Emission Operation of All-Thermal and Hydro-Thermal Power Generation Systems Using Bacterial Foraging Optimization." 2012. http://hdl.handle.net/10222/14865.

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Electric power is a basic requirement for present day life and its various economic sectors. To satisfy the ever-increasing needs for electricity, the number of generating units, transmission lines and distribution systems is rising steadily. In addition, electric power systems are among the most complex industrial systems of the modern age. Beside complexity, the generation of electric power is a main source of gaseous emissions and pollutants. The planning and operation of electric power systems must be done in a way that the load demand is met reliably, cost-effectively and in an environme

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