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Dissertations / Theses on the topic 'Method of Backward-Forward Sweep'

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1

Carvalho, Marcus Rodrigo. "Estudo de técnicas eficientes para a resolução do problema de fluxo de potência para sistemas de distribuição radial." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-27072006-164213/.

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Este trabalho descreve uma abordagem do método primal-dual barreira logarítmica (MPDBL) associado ao método de Newton modificado para a resolução do problema de fluxo de potência para sistemas de distribuição radial. Também foi realizado um estudo comparativo com duas técnicas clássicas de solução do problema de fluxo potência para redes de distribuição radial. São os métodos: Backward/Forward Sweep e o método proposto por M. Baran e F. Wu, que é baseado na técnica de Newton-Raphson. Este método utiliza uma matriz Jacobiana modificada que atende a característica radial dos sistemas de distribu
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2

Beharrysingh, Shiva. "Phase unbalance on low-voltage electricity networks and its mitigation using static balancers." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16252.

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Existing low-voltage networks may not accommodate high penetrations of low-carbon technologies. The topic of this thesis is unbalance, which if minimised can delay or avoid the constraining of these technologies or the replacing of still-useful network assets. Most of the discussion on unbalance, as seen in the standards and the literature, centres on the effects of voltage unbalance on consumer equipment. Its effects on the network are not equally reported. This thesis recognises fundamental differences between the consumer and network perspectives. It can inform distribution network operator
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3

Häggblom, Johan, and Jonathan Jerner. "Photovoltaic Power Production and Energy Storage Systems in Low-Voltage Power Grids." Thesis, Linköpings universitet, Fordonssystem, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-156875.

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In recent years, photovoltaic (PV) power production have seen an increase and the PV power systems are often located in the distribution grids close to the consumers. Since the distributions grids rarely are designed for power production, investigation of its effects is needed. It is seen in this thesis that PV power production will cause voltages to rise, potentially to levels exceeding the limits that grid owners have to abide by. A model of a distribution grid is developed in MathWorks MATLAB. The model contains a transformer, cables, households, energy storage systems (ESS:s) and photovolt
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4

Pantuzi, André Valdir [UNESP]. "Desempenho de um algoritmo backward-forward sweep de cálculo de fluxo de potência." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/87260.

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Made available in DSpace on 2014-06-11T19:22:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-04-26Bitstream added on 2014-06-13T19:48:59Z : No. of bitstreams: 1 pantuzi_av_me_ilha.pdf: 1781418 bytes, checksum: 8c96b8f3bf6cc971c43ea4aa045c10fb (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Neste trabalho investigou-se o desempenho de um algoritmo de cálculo de fluxo de potência trifásico baseado em um método de varredura chamado backward forward sweep. O estudo desenvolveu-se para sistemas de distribuição de energia elétrica radiais e/ou radiais frac
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5

Pantuzi, André Valdir. "Desempenho de um algoritmo backward-forward sweep de cálculo de fluxo de potência /." Ilha Solteira : [s.n], 2006. http://hdl.handle.net/11449/87260.

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Orientador: Antonio Padilha Feltrin<br>Banca: Sergio Azevedo de Oliveira<br>Banca: José Aquiles Baesso Grimoni<br>Resumo: Neste trabalho investigou-se o desempenho de um algoritmo de cálculo de fluxo de potência trifásico baseado em um método de varredura chamado backward forward sweep. O estudo desenvolveu-se para sistemas de distribuição de energia elétrica radiais e/ou radiais fracamente malhados, sendo que o foco principal foi a avaliação do processo de convergência e exatidão do método de fluxo de potência. Para tal finalidade investigou-se variadas situações de redes, tais como: barras c
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6

Zhao, Shuang. "FORWARD AND BACKWARD EXTENDED PRONY (FBEP) METHOD WITH APPLICATIONS TO POWER SYSTEM SMALL-SIGNAL STABILITY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1480948469362031.

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7

Oravcová, Lenka. "Determinanty cien automobilov." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-205901.

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The aim of the thesis Determinants of car prices is to create econometric model for price predictions of new and used cars. The prediction is based on the data provided by website of Slovak retailer of new and used cars. The model should detect statistically significant variables and determine their impact on final price. In the first part of this study, there is theoretical description of automobile industry and factors influencing price of car. The second part is devoted on developing the predictive model, suitable transformation of explanatory variables, interpretation of results and the ca
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8

Amaral, Filho Nélio Alves do. "Contribuições em modelos e na análise do método BFS." Universidade Federal de Juiz de Fora (UFJF), 2017. https://repositorio.ufjf.br/jspui/handle/ufjf/6130.

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Submitted by Geandra Rodrigues (geandrar@gmail.com) on 2017-12-22T14:07:13Z No. of bitstreams: 1 nelioalvesdoamaralfilho.pdf: 3229871 bytes, checksum: c82c698f342f6b908377149e4abe130a (MD5)<br>Rejected by Adriana Oliveira (adriana.oliveira@ufjf.edu.br), reason: Favor corrigir autor: Autor(es): Filho, Nélio Alves do Amaral Favor verificar no Lattes se Araúno tem ou não acento Primeiro Orientador: Araujo, Débora Rosana Ribeiro Penido Co-orientador: Araujo, Leandro Ramos de on 2018-01-22T18:24:16Z (GMT)<br>Submitted by Geandra Rodrigues (geandrar@gmail.com) on 2018-01-22T18:28:56Z No. of
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9

Abbas, Boushra. "Méthode de Newton régularisée pour les inclusions monotones structurées : étude des dynamiques et algorithmes associés." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS250/document.

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Cette thèse est consacrée à la recherche des zéros d'un opérateur maximal monotone structuré, à l'aide de systèmes dynamiques dissipatifs continus et discrets. Les solutions sont obtenues comme limites des trajectoires lorsque le temps t tend vers l'infini. On s'intéressera principalement aux dynamiques obtenues par régularisation de type Levenberg-Marquardt de la méthode de Newton. On décrira aussi les approches basées sur des dynamiques voisines.Dans un cadre Hilbertien, on s'intéresse à la recherche des zéros de l'opérateur maximal monotone structuré M = A + B, où A est un opérateur maximal
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10

Vargas, Peralta Rommel Gregorio. "Reconfiguração de sistemas de distribuição através do algoritmo genético de chaves aleatórias viciadas." Ilha Solteira, 2018. http://hdl.handle.net/11449/154501.

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Orientador: John Fredy Franco Baquero<br>Resumo: Nesta dissertação é proposta a aplicação do algoritmo genético de chaves aleatórias viciadas para a solução do problema de reconfiguração de sistemas de distribuição. Esse problema de otimização consiste em encontrar a configuração radial que apresenta perdas mínimas, satisfazendo as restrições topológicas e as restrições operacionais, sendo modelado como um problema de Programação Não Linear Inteira Mista. O método proposto utiliza o algoritmo de Prim na geração de configurações radiais e emprega um algoritmo de fluxo de carga de varredura para
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11

Nečasová, Gabriela. "Paralelní numerické řešení parciálních diferenciálních rovnic." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2014. http://www.nusl.cz/ntk/nusl-236119.

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This thesis deals with the topic of partial differential equations parallel solutions. First, it focuses on ordinary differential equations (ODE) and their solution methods using Taylor polynomial. Another part is devoted to partial differential equations (PDE). There are several types of PDE, there are parabolic, hyperbolic and eliptic PDE. There is also explained how to use TKSL system for PDE computing. Another part focuses on solution methods of PDE, these methods are forward, backward and combined methods. There was explained, how to solve these methods in TKSL and Matlab systems. Computi
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12

Millán, Reinier Díaz. "Vários algoritmos para os problemas de desigualdade variacional e inclusão." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/4562.

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Submitted by Erika Demachki (erikademachki@gmail.com) on 2015-05-21T19:19:51Z No. of bitstreams: 2 Tese - Reinier Díaz Millán - 2015.pdf: 3568052 bytes, checksum: b4c892f77911a368e1b8f629afb5e66e (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2015-05-21T19:21:31Z (GMT) No. of bitstreams: 2 Tese - Reinier Díaz Millán - 2015.pdf: 3568052 bytes, checksum: b4c892f77911a368e1b8f629afb5e66e (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Made availab
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13

Sarmiento, Jonattan Emanuel. "Modelagem de inversores em fluxo de potência considerando suporte de potência reativa como serviço ancilar na distribuição." Universidade Estadual do Oeste do Paraná, 2016. http://tede.unioeste.br:8080/tede/handle/tede/1034.

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Made available in DSpace on 2017-07-10T16:41:34Z (GMT). No. of bitstreams: 1 Dissert Jonattan Emanuel Sarmiento2.pdf: 1326992 bytes, checksum: eeb1918a0e5e9c45ad54043cd1ea9c5e (MD5) Previous issue date: 2016-06-23<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In recent years there has been a great increase in the use of distributed generators. This occurred not only by advances in production technologies of small generators and frequency inverters, but also by the benefits that brings to the distribution systems and the incentive policies. In the analysis of these sy
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14

Wu, Yue. "Pathwise anticipating random periodic solutions of SDEs and SPDEs with linear multiplicative noise." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/15991.

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In this thesis, we study the existence of pathwise random periodic solutions to both the semilinear stochastic differential equations with linear multiplicative noise and the semilinear stochastic partial differential equations with linear multiplicative noise in a Hilbert space. We identify them as the solutions of coupled forward-backward infinite horizon stochastic integral equations in general cases, and then perform the argument of the relative compactness of Wiener-Sobolev spaces in C([0, T],L2Ω,Rd)) or C([0, T],L2(Ω x O)) and Schauder's fixed point theorem to show the existence of a sol
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15

Nassif, Roula. "Estimation distribuée adaptative sur les réseaux multitâches." Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4118/document.

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L’apprentissage adaptatif distribué sur les réseaux permet à un ensemble d’agents de résoudre des problèmes d’estimation de paramètres en ligne en se basant sur des calculs locaux et sur des échanges locaux avec les voisins immédiats. La littérature sur l’estimation distribuée considère essentiellement les problèmes à simple tâche, où les agents disposant de fonctions objectives séparables doivent converger vers un vecteur de paramètres commun. Cependant, dans de nombreuses applications nécessitant des modèles plus complexes et des algorithmes plus flexibles, les agents ont besoin d’estimer et
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16

Chu, Shou-Yung, and 朱守勇. "A Modified Forward and Backward Sweep Method for Radial Distribution Load Flow Analysis." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/44501508379022743394.

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博士<br>國立中正大學<br>電機工程所<br>96<br>Load flow analysis is the most fundamental work for power system operation and planning. In transmission systems, the network is always treated as balanced. Then, the load flow problem for transmission system can be dealt by single-phase method. However, the distribution power system is unbalanced inherently because of unsymmetrical network and unbalanced loads. In such situation, the conventional load flow methods for transmission systems are not suitable for distribution systems. In addition, high R/X ratio and radial structure are also to restrict the use of s
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17

Cho, Donghyurn. "Successive Backward Sweep Methods for Optimal Control of Nonlinear Systems with Constraints." Thesis, 2013. http://hdl.handle.net/1969.1/150960.

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Continuous and discrete-time Successive Backward Sweep (SBS) methods for solving nonlinear optimal control problems involving terminal and control constraints are proposed in this dissertation. They closely resemble the Neighboring Extremals and Differential Dynamic Programming algorithms, which are based on the successive solutions to a series of linear control problems with quadratic performance indices. The SBS methods are relatively insensitive to the initial guesses of the state and control histories, which are not required to satisfy the system dynamics. Hessian modifications are utilize
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