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Relevant bibliographies by topics / Loss minimization / Dissertations / Theses

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Dissertations / Theses on the topic 'Loss minimization'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Vaez, Sadegh. "Loss minimization control of interior permanent magnet motor drives." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq22499.pdf.

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2

Nguyen, Chi Dung [Verfasser]. "Loss minimization control of three-phase motors / Chi Dung Nguyen." Aachen : Shaker, 2017. http://d-nb.info/1149268948/34.

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3

Pedreira, Carlos Eduardo. "Theory of shape optimization with applications to heat loss minimization." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/47626.

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4

MELLO, L. H. S. "Evaluating loss minimization in multi-label classification via stochastic simulation using beta distribution." Universidade Federal do Espírito Santo, 2016. http://repositorio.ufes.br/handle/10/4309.

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Made available in DSpace on 2016-08-29T15:33:25Z (GMT). No. of bitstreams: 1 tese_9881_Ata de defesa.pdf: 679815 bytes, checksum: bd13283b6e7f400de68b79f04cf0b4a9 (MD5) Previous issue date: 2016-05-20<br>The objective of this work is to present the effectiveness and efficiency of algorithms for solving the loss minimization problem in Multi-Label Classification (MLC). We first prove that a specific case of loss minimization in MLC isNP-complete for the loss functions Coverage and Search Length, and therefore,no efficient algorithm for solving such problems exists unless P=NP. Furthermore, we

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5

Bouchard, Derrick Earl. "Towards loss minimization in power distribution systems using AI, the WatDist algorithm." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21333.pdf.

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6

NEVOLOSO, Claudio. "Enhanced mathematical modelling of interior permanent magnet synchronous machines for loss minimization control." Doctoral thesis, Università degli Studi di Palermo, 2020. http://hdl.handle.net/10447/395194.

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Energy management is a fundamental facility for humanity. At present, the awareness that renewable energy cannot satisfy the entire energy needs of the community and that traditional energy sources have a limited duration makes it imperative to address the problem of their careful and responsible use. Therefore, the need for an intelligent and functional use of energy has led the technical-scientific community to concentrate its efforts on the issues of sustainable development and energy savings. The electric drives industrial sector has suffered this influence in a visceral way. This sector p

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Lukman, Dedek Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Loss minimization in the modified algorithm of load flow analysis in industrial power system." Awarded by:University of New South Wales, 2002. http://handle.unsw.edu.au/1959.4/35453.

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The research looks at an alternative technique of loss minimization using B-loss formula in solving load flow analysis. A modeling of electrical system elements is first developed. A literature review on the history and development of load flow analysis and loss minimization especially on the use of B-loss formula are delivered. A report on load flow in practice and loss minimization measures based on a utility visit to EnergyAustralia is given. An analysis on three types of industrial power systems is also discussed. A substantial study on EDSA was made to adapt the commercial load flow progr

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8

Soroka, Pavlo. "Electric vehicle drivetrain based on permanent magnet synchronous motor with loss minimization control algorithm." Master's thesis, Igor Sikorsky Kyiv Polytechnic Institute, 2020. https://ela.kpi.ua/handle/123456789/39262.

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Дипломний проект містить: сторінок – 93, рисунків – 32, таблиць – 32 та графічну частину на 6 листах А1. Метою роботи є розробити алгоритм розрахунку параметрів електроприводу автомобіля на основі синхронного двигуна з постійними магнітами. В даній дисертації було розраховано параметри тягового двигуна, батареї та елементів кола керування електроприводом електромобіля. Синтезовано алгоритм керування синхронним двигуном з вбудованими постійними магнітами з мінімізацією втрат. Було досліджено динамічні характеристики електромеханічної системи методом математичного моделювання. Було пор

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9

McDermott, Thomas E. "A Heuristic Nonlinear Constructive Method for Electric Power Distribution System Reconfiguration." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30447.

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The electric power distribution system usually operates a radial configuration, with tie switches between circuits to provide alternate feeds. The losses would be minimized if all switches were closed, but this is not done because it complicates the system's protection against overcurrents. Whenever a component fails, some of the switches must be operated to restore power to as many customers as possible. As loads vary with time, switch operations may reduce losses in the system. Both of these are applications for reconfiguration. The problem is combinatorial, which precludes algorithms that

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10

Li, Jingchuan. "Adaptive sliding mode observer and loss minimization for sensorless field orientation control of induction machine." Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1132428071.

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11

Cabezas, Ana María García. "Novas formulações para o problema de reconfiguração de redes de distribuição de energia elétrica." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-07012008-162228/.

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A reconfiguração de sistemas de distribuição de energia elétrica consiste em alterar a topologia das redes através da abertura ou fechamento das chaves de interconexão existentes nos alimentadores de distribuição primários, de forma a otimizar uma determinada função objetivo. Normalmente os objetivos são a minimização de perdas ativas, o isolamento de faltas, o balanceamento de cargas entre alimentadores e/ou a melhoria dos níveis de tensão. Neste trabalho considera-se a minimização da perda ativa total. As dificuldades do problema de reconfiguração de redes de distribuição resultam do tamanho

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12

Mosher, Mark Eugene. "Remedy for summer sickness, minimization of brightness loss of unbleached TMP pulp produced from summer cut wood at Irving Paper." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0005/MQ46270.pdf.

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13

Costabeber, Alessandro. "Advanced Control of Power Converters for Efficient Use of Distributed Energy Resources in Future Smart Microgrids." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3425810.

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This work proposes a vision on the growing scenario of Smart Grids, where a pervasive introduction of distributed generators and innovative power management schemes forces a deep review of the power distribution network establishment. Despite a potentially general value of the proposed approach, the analysis is focused on low voltage microgrids as the most flexible and open architectures to demonstrate the feasibility of the network renewal. In recent years, distribution network has experienced a massive introduction of Distributed Generators (DGs). So far, this has been done based on a

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14

Garg, Aditie. "Designing Reactive Power Control Rules for Smart Inverters using Machine Learning." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83558.

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Due to increasing penetration of solar power generation, distribution grids are facing a number of challenges. Frequent reverse active power flows can result in rapid fluctuations in voltage magnitudes. However, with the revised IEEE 1547 standard, smart inverters can actively control their reactive power injection to minimize voltage deviations and power losses in the grid. Reactive power control and globally optimal inverter coordination in real-time is computationally and communication-wise demanding, whereas the local Volt-VAR or Watt-VAR control rules are subpar for enhanced grid service

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15

Hanzlíček, Martin. "Simulace řízení asynchronního motoru s ohledem na vysokou účinnost." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442789.

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The diploma thesis deals with the simulation of induction motor control with respect to high efficiency. The theory of an induction motor is described here, with emphasis on its losses. Scalar and vector control are also described here. Vector control is optimized for higher efficiency. Subsequently, the creation of a model in the program đť‘€đť´đť‘‡ đťżđť´đťµâ’đť‘†đť‘–đť‘šđť‘˘đť‘™đť‘–đť‘›đť‘ is described here, for the comparison of scalar and vector control with optimization.

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16

Neirac, Lucie. "Learning with a linear loss function : excess risk and estimation bounds for ERM and minimax MOM estimators, with applications." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAG012.

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La détection de communautés sur des graphes, la récupération de phase, le clustering signé, la synchronisation angulaire, le problème de la coupe maximale, la sparse PCA, ou encore le single index model, sont des problèmes classiques dans le domaine de l'apprentissage statistique. Au premier abord, ces problèmes semblent très dissemblables, impliquant différents types de données et poursuivant des objectifs distincts. Cependant, la littérature récente révèle qu'ils partagent un point commun : ils peuvent tous être formulés sous la forme de problèmes d'optimisation semi-définie positive (SDP).

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17

Lindblad, Simon. "Labeling Clinical Reports with Active Learning and Topic Modeling." Thesis, Linköpings universitet, Interaktiva och kognitiva system, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148463.

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Supervised machine learning models require a labeled data set of high quality in order to perform well. Available text data often exists in abundance, but it is usually not labeled. Labeling text data is a time consuming process, especially in the case where multiple labels can be assigned to a single text document. The purpose of this thesis was to make the labeling process of clinical reports as effective and effortless as possible by evaluating different multi-label active learning strategies. The goal of the strategies was to reduce the number of labeled documents a model needs, and increa

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18

Coelho, Francisco Carlos Rodrigues. "Alocação de geração distribuída em sistemas de distribuição de energia elétrica via otimização bioinspirada na ecolocalização de morcegos." Universidade Federal de Juiz de Fora, 2013. https://repositorio.ufjf.br/jspui/handle/ufjf/1203.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-04-06T18:38:52Z No. of bitstreams: 1 franciscocarlosrodriguescoelho.pdf: 4497321 bytes, checksum: 84c61f06bc2ac3aae79f57fc04d6cb0f (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-04-24T03:52:25Z (GMT) No. of bitstreams: 1 franciscocarlosrodriguescoelho.pdf: 4497321 bytes, checksum: 84c61f06bc2ac3aae79f57fc04d6cb0f (MD5)<br>Made available in DSpace on 2016-04-24T03:52:25Z (GMT). No. of bitstreams: 1 franciscocarlosrodriguescoelho.pdf: 4497321 bytes, checksum: 84c61f06bc2ac3aae79f57f

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Spatti, Karla Barbosa de Freitas. "Modelos matemáticos e heurísticas baseadas em técnicas de programação matemática para o problema de minimização de perdas e reconfiguração de redes elétricas." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-17102018-085628/.

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A reconfiguração de redes de distribuição de energia elétrica consiste em alterar sua topologia por meio de manobras de chaves nos circuitos primários. Trata-se de um problema de otimização combinatória, onde normalmente os objetivos são a minimização de perdas ativas e/ou número de manobras realizadas, atendendo as restrições como isolamento de faltas, balanceamento de cargas entre os alimentadores e melhoria dos níveis de tensão. As dificuldades na modelagem e na resolução exata de problemas envolvendo a reconfiguração de redes de distribuição advém do tamanho dos sistemas reais, representad

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20

Resener, Mariana. "Modelo linearizado para problemas de planejamento da expansão de sistemas de distribuição." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/156487.

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Este trabalho apresenta um modelo linearizado para ser utilizado em problemas de planejamento da expansão de sistemas de distribuição de energia elétrica (SDEE) com geração distribuída (GD), em um horizonte de curto prazo. O ponto de operação em regime permanente é calculado através de um modelo linearizado da rede, sendo as cargas e geradores representados por injeções constantes de corrente, o que torna possível calcular as correntes nos ramos e as tensões nas barras através de expressões lineares. As alternativas de expansão consideradas são: (i) alocação de bancos de capacitores; (ii) aloc

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21

Rosseti, Gustavo José Santiago. "Reconfiguração e alocação ótima de geração distribuída em sistemas de energia elétrica." Universidade Federal de Juiz de Fora (UFJF), 2011. https://repositorio.ufjf.br/jspui/handle/ufjf/2461.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-09-12T12:17:41Z No. of bitstreams: 1 gustavojosesantiagorosseti.pdf: 1406328 bytes, checksum: e250ced1df20ff9c96f2e06c95c77543 (MD5)<br>Approved for entry into archive by Diamantino Mayra (mayra.diamantino@ufjf.edu.br) on 2016-09-13T13:22:34Z (GMT) No. of bitstreams: 1 gustavojosesantiagorosseti.pdf: 1406328 bytes, checksum: e250ced1df20ff9c96f2e06c95c77543 (MD5)<br>Made available in DSpace on 2016-09-13T13:22:34Z (GMT). No. of bitstreams: 1 gustavojosesantiagorosseti.pdf: 1406328 bytes, checksum: e250ced1df20ff9c96f2e06c95c77543 (M

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Duque, Felipe Gomes. "Alocação de capacitores em sistemas de distribuição de energia elétrica utilizando técnica de otimização bio-inspirada." Universidade Federal de Juiz de Fora, 2016. https://repositorio.ufjf.br/jspui/handle/ufjf/962.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-03-04T19:04:18Z No. of bitstreams: 1 felipegomesduque.pdf: 1280593 bytes, checksum: 1f3d9c0ec3a41fa23d8f1844be3efc5c (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-04-24T01:56:12Z (GMT) No. of bitstreams: 1 felipegomesduque.pdf: 1280593 bytes, checksum: 1f3d9c0ec3a41fa23d8f1844be3efc5c (MD5)<br>Made available in DSpace on 2016-04-24T01:56:12Z (GMT). No. of bitstreams: 1 felipegomesduque.pdf: 1280593 bytes, checksum: 1f3d9c0ec3a41fa23d8f1844be3efc5c (MD5) Previous issue date: 20

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Pereira, Fernando Silva. "Reconfiguração ótima de sistemas de distribuição de energia elétrica baseado no comportamento de colônias de formigas." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-28042010-151514/.

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O objetivo deste trabalho é apresentar uma nova abordagem para obtenção de configurações para sistemas de distribuição de energia elétrica com o intuito de minimizar o valor de perdas ativas sem violar as restrições operacionais. Para isso, considera-se que os sistemas de distribuição estão operando em regime permanente e que suas fases estão equilibradas e simétricas, podendo o sistema ser representado por um diagrama unifilar. A reconfiguração é feita de forma a redistribuir os fluxos de corrente nas linhas, transferindo cargas entre os alimentadores e melhorando o perfil de tensão ao longo

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Casagrande, Cristiano Gomes. "Alocação de capacitores e ajuste de tapes para minimização de perdas em sistemas de distribuição de energia elétrica." Universidade Federal de Juiz de Fora (UFJF), 2010. https://repositorio.ufjf.br/jspui/handle/ufjf/2548.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-09-21T17:53:15Z No. of bitstreams: 1 cristianogomescasagrande.pdf: 637689 bytes, checksum: 8110c0aa199d98fa3f68855ccb257b82 (MD5)<br>Approved for entry into archive by Diamantino Mayra (mayra.diamantino@ufjf.edu.br) on 2016-09-26T20:27:35Z (GMT) No. of bitstreams: 1 cristianogomescasagrande.pdf: 637689 bytes, checksum: 8110c0aa199d98fa3f68855ccb257b82 (MD5)<br>Made available in DSpace on 2016-09-26T20:27:35Z (GMT). No. of bitstreams: 1 cristianogomescasagrande.pdf: 637689 bytes, checksum: 8110c0aa199d98fa3f68855ccb257b82 (MD5) Pr

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Coelho, Francisco Carlos Rodrigues. "Alocação de geração distribuída em sistemas de distribuição de energia elétrica via metaheurística empírica discreta." Universidade Federal de Juiz de Fora (UFJF), 2018. https://repositorio.ufjf.br/jspui/handle/ufjf/6506.

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Submitted by Geandra Rodrigues (geandrar@gmail.com) on 2018-03-27T14:05:45Z No. of bitstreams: 1 franciscocarlosrodriguescoelho.pdf: 4772391 bytes, checksum: e11633134429c05832808dad96be9940 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2018-03-27T14:28:31Z (GMT) No. of bitstreams: 1 franciscocarlosrodriguescoelho.pdf: 4772391 bytes, checksum: e11633134429c05832808dad96be9940 (MD5)<br>Made available in DSpace on 2018-03-27T14:28:31Z (GMT). No. of bitstreams: 1 franciscocarlosrodriguescoelho.pdf: 4772391 bytes, checksum: e11633134429c05832808dad9

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Vach, Tomáš. "Návrh a výpočet sušicího zařízení pro dřevozpracující průmysl." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228021.

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The thesis considers a stabilization of temperature of a wood fiber during production of medium close fibre boards MDF in a wood-processing industry. The original purpose to solve energetic optimalization of a kiln dryer has become a serious problem. It turned out that production suffers with a big heat loss which results in big heat loss gained during a kiln drying. Primary aim of this thesis is an examination of a cooling effect of environment on chosen parts of a production line and suggestion of acceptable proceeding to minimize heat loss and to rise temperature of the wood fiber to requir

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27

Yildirim, Egemen. "Development Of Multi-layered Circuit Analog Radar Absorbing Structures." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614314/index.pdf.

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A fast and efficient method for the design of multi-layered circuit analog absorbing structures is developed. The method is based on optimization of specular reflection coefficient of a multi-layered absorbing structure comprising of lossy FSS layers by using Genetic Algorithm and circuit equivalent models of FSS layers. With the introduced method, two illustrative absorbing structures are designed with -15 dB reflectivity for normal incidence case in the frequency bands of 10-31 GHz and 5-46 GHz, respectively. To the author&rsquo<br>s knowledge, designed absorbers are superior in terms of fre

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Bendjoua, Jamel. "Contribution à l'étude de l'alimentation des machines électriques de fortes puissances : minimisation des ondulations de couple lors de l'alimentation par cycloconvertisseur." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL119N.

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Ce travail porte sur la modélisation, la simulation, la commande du système cycloconvertisseur-machine synchrone et asynchrone et de la comparaison de leurs performances en terme d'ondulation de couple électromagnétique. On montre que la machine synchrone permet, en statique, d'avoir un couple moins ondulé. Par contre, la machine asynchrone présente un meilleur comportement dynamique lors du démarrage. Afin de limiter les harmoniques provoqués par le temps mort de sécurité, une deuxième horloge permettant d'imposer la durée du palier nul à une valeur fixe est proposée. Enfin, dans le but de ré

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Campi, Luciano. "Marchés financiers avec une infinité d'actifs, couverture quadratique et délits d'initiés." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2003. http://tel.archives-ouvertes.fr/tel-00004331.

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Cette thèse consiste en une série d'applications du calcul stochastique aux mathématiques financières. Elle est composée de quatre chapitres. Dans le premier on étudie le rapport entre la complétude du marché et l'extrémalité des mesures martingales equivalentes dans le cas d'une infinité d'actifs. Dans le deuxième on trouve des conditions équivalentes à l'existence et unicité d'une mesure martingale equivalente sous la quelle le processus des prix suit des lois n-dimensionnelles données à n fixe. Dans le troisième on étend à un marché admettant une infinité dénombrable d'actifs une charactéri

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Wang, Xiang Yan, and 王祥延. "Loss minimization of distribution system." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/89274948184659999555.

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Gomes, Christian Anjos. "Loss minimization in a multihoming vehicular network." Master's thesis, 2018. http://hdl.handle.net/10773/25605.

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The growing interest in Vehicular Ad-hoc NETworks (VANETs) is encouraging its deployment in new environments, allowing the development of safety and entertainment applications. Vehicles can connect to other vehicles or to the infrastructure, providing an Internet connection. The communication equipment placed inside the vehicles may have multiple network interfaces of diverse technologies, such as IEEE 802.11p/WAVE, IEEE 802.11a/g/n (Wi- Fi) and cellular. This diversity enables the exploration of Multihoming (MH) and Network Coding (NC) mechanisms which can be used to provide higher ba

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"Quantifying Losses in Power Systems Using Different Types of FACTS Controllers." Thesis, 2013. http://hdl.handle.net/10388/ETD-2013-09-1183.

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This thesis discusses the placement of conventional power flow controllers (namely the Fixed series capacitor (FSC), Phase Angle Regulating Transformer (PAR)) and Flexible AC Transmission System (FACTS) devices (namely the Thyristor Controlled Series Capacitor (TCSC), the Static Synchronous Series Compensator (SSSC), the Unified Power Flow Controllers (UPFC) and the Sen Transformer (ST)) in bulk power systems to minimize transmission losses in the entire system. This firstly resolves line overloading and improves the overall voltage profile of the entire system. Secondly the transmission losse

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李永晃. "Minimization of Quality Loss Costs by Process Tolerances Design." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/48590768915602814788.

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碩士<br>中華大學<br>工業工程與管理研究所<br>86<br>The competitive advantage of domestic manufacturers was degraded due to the fluctuation of Taiwan currency, the shortage of workers, the escalation of labor wages, the emphasis of environmental pollution and the deficiency of the government. In the customer-oriented market, the manufacturers must insure the product quality and conformance rate in order to reduce the costs of production. 　　The objective of this research is to minimize the defective products and the rework costs through the proper design of the tolerance. Based on the required blueprint tolera

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Chen, Meng-Tien, and 陳孟田. "On-chip Optical Channel Routing for Signal Loss Minimization." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/89802131428172446402.

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碩士<br>中華大學<br>資訊工程學系<br>104<br>To satisfy the performance requirement in modern VLSI designs, on-chip optical integration is a potential and developing technology in delay and power consideration. According to the placement result of the necessary optical devices on an optical layer, an optical routing plane can be divided into a set of horizontal or vertical optical channels. Based on the exploration of different optical routing geometries in planar routing, optical signal loss including length loss, bend loss and crossing loss can be treated as penalty of a routing result in planar routing.

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Chang, Kang. "Loss Minimization Control of Permanent Magnet Synchronous Machine for Electric Vehicle Applications." Thesis, 2013. http://spectrum.library.concordia.ca/977765/1/Kang_MSc_F2013.pdf.

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With the limits of power source taken into consideration, the efficiency of the traction drive is of particular importance in the engineering of electric vehicle and plug-in hybrid electric vehicle (EV/PHEV). Thanks to its high power density, high efficiency and high torque to weight ratio, Permanent Magnet Synchronous Machine (PMSM) distinguishes itself from other traction system candidates in the EV/PHEV application market. This research sets out to explore how the control strategy of PMSM can be optimized so as to achieve a better efficiency performance of EV/PHEV. Prior research has put

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Hung, Cheng-Yu, and 洪政猷. "Data Loss Minimization for File System Crash Recovery using Persistent Main Memory." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/61147206341127209069.

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碩士<br>國立交通大學<br>資訊科學與工程研究所<br>102<br>System failure always happens due to power outage, there would lost many data if power outage occurs. Even there have some methods like UPS to prevent data loss, but it costs too high. We proposed a technique based on battery-backed memory to protect file systems from losing data across power failures and guaranteed file system integrity. The idea is simple: when power restores after a power outage, our method salvages modified but unwritten data by scanning and parsing the contents in memory. We have implement our method on Ext3 file system and improve rec

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Pritam, Giri *. "Power Loss Minimization for Drag Reduction and Self-Propulsion using Surface Mass Transpiration." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2835.

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The remarkable efficacy with which normal surface mass transpiration (blowing and suction) alters a given base flow to achieve a desired predefined objective has motivated several investigations on drag reduction, self-propulsion and suppression of separation and wake unsteadiness in bluff body flows. However, the energetic efficiency, a critical parameter that determines the true efficacy and in particular practical feasibility of this control strategy, has received significantly less attention. In this work, we determine the optimal zero net mass transpiration blowing and suction profiles th

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Pritam, Giri *. "Power Loss Minimization for Drag Reduction and Self-Propulsion using Surface Mass Transpiration." Thesis, 2016. http://hdl.handle.net/2005/2835.

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The remarkable efficacy with which normal surface mass transpiration (blowing and suction) alters a given base flow to achieve a desired predefined objective has motivated several investigations on drag reduction, self-propulsion and suppression of separation and wake unsteadiness in bluff body flows. However, the energetic efficiency, a critical parameter that determines the true efficacy and in particular practical feasibility of this control strategy, has received significantly less attention. In this work, we determine the optimal zero net mass transpiration blowing and suction profiles th

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HUANG, SHENG-HAN, and 黃聖涵. "The Application of Immune Genetic Algorithm to Load Balancing and Loss Minimization in Distribution Systems." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/25965951845769234055.

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碩士<br>國立高雄應用科技大學<br>電機工程系博碩士班<br>101<br>Because issues of energy saving and global warming are highly concerned, more and more renewable energy is developed and operated in distribution systems which will experienced more complex operating characteristics. In this thesis, an immune genetic algorithm is proposed to reconfigure distribution systems to effectively improve load balancing and reduce operation losses. By using the similar features of B cells and T cells in lymphocytes, the characteristics of specificity, adaptiveness, and memory, an immune genetic algorithm is proposed to improve ma

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Chen, Bo-An, and 陳柏安. "Analytical Approach to Maximum Power Tracking and Loss Minimization of a Doubly-Fed Induction Generator." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/83713072520990795884.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>99<br>Maximum power tracking and loss minimization of a doubly-fed induction generator (DFIG) are studied in this thesis to yield maximum output power. Analytical solutions for rotor currents are derived for steady-state equivalent circuits with and without core loss. Stator resistance is considered in all the derivations. Stator-flux orientated control is first introduced to achieve decoupled real and reactive power control. Then the way to achieve maximum power tracking under different wind speeds is described. Finally, analytical solutions for rotor currents to

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Kagima, David Kariuki. "Training programs in sustainable agriculture for postharvest loss minimization and storage : a case sudy in Ethiopia /." 2005.

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Yeh, Fang-Chun, and 葉芳俊. "Study on Switching Operation for Loss Minimization of Distribution Systems by Using Colored Petri Net Model." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/57965471009695983882.

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碩士<br>國立高雄應用科技大學<br>電機工程系碩士班<br>92<br>Heuristic rules with a colored Petri net (CPN) algorithm is developed for loss reduction of distribution systems. The CPN models of distribution components such as four-way line switches are proposed to derive the proper switching operations. In this way, the loss of distribution system will be reduced. Heuristic rules based on the standard load transfer operation procedures of Taipower distribution system are included in the best first search of the CPN to obtain the desired switching operations for loss reduction in this thesis. The database o

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Lai, Zih Shan, and 賴資憲. "Design of Micro Converters to Power Loss Minimization for a Series PV Array Subject to Partial Shading." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/jgrp4s.

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Samajpati, Dipanjan. "Distributed Generation Allocation For Power Loss Minimization And Voltage Improvement Of Radial Distribution Systems Using Genetic Algorithm." Thesis, 2014. http://ethesis.nitrkl.ac.in/6184/1/212EE4253-7.pdf.

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Numerous advantages attained by integrating Distributed Generation (DG) in distribution systems. These advantages include decreasing power losses and improving voltage profiles. Such benefits can be achieved and enhanced if DGs are optimally sized and located in the systems. This theses presents a distribution generation (DG) allocation strategy to improve node voltage and power loss of radial distribution systems using genetic algorithm (GA). The objective is to minimize active power losses while keep the voltage profiles in the network within specified limit. This approach finds optimal DG a

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Гуназа, Анна Ігорівна. "Підвищення ефективності теплових мереж шляхом впровадження предізольованих труб". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/2167.

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Гуназа А. І. Підвищення ефективності теплових мереж шляхом впровадження предізольованих труб : кваліфікаційна робота магістра спеціальності 144 "Теплоенергетика" / наук. керівник Ю. М. Каюков. Запоріжжя : ЗНУ, 2020. 90 с.<br>UA : Робота викладена на 90 сторінках друкованого тексту, містить 10 таблиць, 20 рисунків. Перелік посилань включає 76 джерел з них на іноземній мові 0. В магістерській роботі проведено дослідження теплових мереж; різних варіантів теплової ізоляції та їх характеристик. Виконано аналіз літературних джерел з питання ефективності теплової ізоляції та теплових мереж. На осно

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Falahi, Milad. "Dynamic Reactive Power Control of Isolated Power Systems." Thesis, 2012. http://hdl.handle.net/1969.1/148126.

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This dissertation presents dynamic reactive power control of isolated power systems. Isolated systems include MicroGrids in islanded mode, shipboard power systems operating offshore, or any other power system operating in islanded mode intentionally or due to a fault. Isolated power systems experience fast transients due to lack of an infinite bus capable of dictating the voltage and frequency reference. This dissertation only focuses on reactive control of islanded MicroGrids and AC/DC shipboard power systems. The problem is tackled using a Model Predictive Control (MPC) method, which uses a

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Λαμπρόπουλος, Λάμπρος. "Έλεγχος κινητήρα εναλλασσόμενου ρεύματος για εξοικονόμηση ενέργειας : εφαρμογή στα ηλεκτροκίνητα οχήματα". Thesis, 2010. http://nemertes.lis.upatras.gr/jspui/handle/10889/4505.

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Η παρούσα διπλωματική εργασία πραγματεύεται τη διερεύνηση μεθόδου εξοικονόμησης ενέργειας σε ηλεκτροκίνητο όχημα, μέσω ελέγχου του κινηητήρα για την ελαχιστοποίηση των απωλειών του ηλεκτροκινητήριου συστήματος. Στη συγκεκριμένη περίπτωση, το ηλεκτροκινητήριο σύστημα αποτελείται από ασύγχρονο τριφασικό κινητήρα οδηγούμενο. από αντιστροφέα τάσης, ο οποίος τροφοδοτείται από συσσωρευτές. Η εργασία αυτή εκπονήθηκε στο Εργαστήριο Ηλεκτρομηχανικής Μετατροπής Ενέργειας του Τμήματος Ηλεκτρολόγων Μηχανικών της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών. Σκοπός της διπλωματικής αυτής εργασίας είναι η

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Lee, Hsin-Yi, and 李欣憶. "Power Delivery Scheduling for Fuel Cost Minimization in a Lossy Network." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/22776889908446476485.

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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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