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A New Approach for Electric Modeling of Vertical Axis Wind Turbine Rotors in View to the Construction of a Global Electric Model for the Wind Energy Conversion System = = Nouvelle approche de modelisation electrique des rotors d'eoliennes a axe vertical en vue de la construction d'un modele electrique global de la chaine de conversion eolienne.

Record Type:	Electronic resources : Monograph/item
Title/Author:	A New Approach for Electric Modeling of Vertical Axis Wind Turbine Rotors in View to the Construction of a Global Electric Model for the Wind Energy Conversion System =/
Reminder of title:	Nouvelle approche de modelisation electrique des rotors d'eoliennes a axe vertical en vue de la construction d'un modele electrique global de la chaine de conversion eolienne.
Author:	Tchakoua Takoutsing, Pierre.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	189 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Contained By:	Dissertations Abstracts International81-04B.
Subject:	Electrical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13901709
ISBN:	9781085677622

A New Approach for Electric Modeling of Vertical Axis Wind Turbine Rotors in View to the Construction of a Global Electric Model for the Wind Energy Conversion System = = Nouvelle approche de modelisation electrique des rotors d'eoliennes a axe vertical en vue de la construction d'un modele electrique global de la chaine de conversion eolienne.
Tchakoua Takoutsing, Pierre.

A New Approach for Electric Modeling of Vertical Axis Wind Turbine Rotors in View to the Construction of a Global Electric Model for the Wind Energy Conversion System =Nouvelle approche de modelisation electrique des rotors d'eoliennes a axe vertical en vue de la construction d'un modele electrique global de la chaine de conversion eolienne. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 189 p.

Source: Dissertations Abstracts International, Volume: 81-04, Section: B.

Thesis (Ph.D.)--Universite du Quebec a Chicoutimi (Canada), 2019.

This item must not be sold to any third party vendors.

The combine effects of climate changes, the continue and considerable increase of energy demand in the world, the instability of fossil fuel prices as well as the energetic dependence of some countries who are not fuel producers leads to important development of renewable energies. More again, the energy bill in its dizzying rise causes the prices increase for raw materials, goods and even basic necessities. It is therefore imperative to go in for diversification of energy sources on the one hand and means to produce energy at a relatively low cost on the other hand. This thesis proposes a novel approach for aerodynamic modelling of Darrieus type vertical axes wind turbines (VAWTs). Indeed, it is a contribution to the build-up of a global electric model for vertical axis wind turbine conversion system with a view to improve monitoring, diagnosis and maintenance. The goal of this research work is double: firstly, to propose an innovative approach for aerodynamic modelling of VAWTs and secondly, based on this approach, to build a new equivalent electric model for the study, analysis and aerodynamic optimisation of Darrieus type VAWTs. More broadly, this work aims to contribute to the development of new tools, techniques and methods to improve the design, optimization, diagnosis, prognosis and monitoring of Darrieus VAWTs to better ensure their maintenance. The purpose is to provide the scientific community and the wind turbine industry with new tools that can ameliorate the reliability and thus increase performance and efficiency of Darrieus type VAWTs. An equivalent electric circuit model for three-blade DT-VAWT rotors was builded. The new model that we named the Tchakoua model is based on a recently developed approach for modelling DT-VAWT rotors using the equivalent electrical circuit analogy. The proposed model was built from the mechanical description given by the Paraschivoiu double-multiple streamtube model and was based on an analogy between mechanical and electrical circuits. Thus, the rotating blades and the blades' mechanical coupling to the shaft are modelled using the mechanical-electrical analogy, and the wind flow is modelled as a source of electric current. Model simulations were conducted using MATLAB for a three-bladed rotor architecture, characterized by a NACA0012 profile, an average Reynolds number of 40,000 for the blade and a tip speed ratio of 5. The results obtained show strong agreement with findings from both aerodynamic and computational fluid dynamics (CFD) models in the literature.

ISBN: 9781085677622Subjects--Topical Terms:

649834
Electrical engineering.
Subjects--Index Terms:

Aerodynamic characteristics

A New Approach for Electric Modeling of Vertical Axis Wind Turbine Rotors in View to the Construction of a Global Electric Model for the Wind Energy Conversion System = = Nouvelle approche de modelisation electrique des rotors d'eoliennes a axe vertical en vue de la construction d'un modele electrique global de la chaine de conversion eolienne.
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100 1 $a Tchakoua Takoutsing, Pierre. $3 3547800
245 1 0 $a A New Approach for Electric Modeling of Vertical Axis Wind Turbine Rotors in View to the Construction of a Global Electric Model for the Wind Energy Conversion System = $b Nouvelle approche de modelisation electrique des rotors d'eoliennes a axe vertical en vue de la construction d'un modele electrique global de la chaine de conversion eolienne.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 189 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
500 $a Advisor: Slaoui Hasnaoui, Fouad;Ouhrouche, Mohand.
502 $a Thesis (Ph.D.)--Universite du Quebec a Chicoutimi (Canada), 2019.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a The combine effects of climate changes, the continue and considerable increase of energy demand in the world, the instability of fossil fuel prices as well as the energetic dependence of some countries who are not fuel producers leads to important development of renewable energies. More again, the energy bill in its dizzying rise causes the prices increase for raw materials, goods and even basic necessities. It is therefore imperative to go in for diversification of energy sources on the one hand and means to produce energy at a relatively low cost on the other hand. This thesis proposes a novel approach for aerodynamic modelling of Darrieus type vertical axes wind turbines (VAWTs). Indeed, it is a contribution to the build-up of a global electric model for vertical axis wind turbine conversion system with a view to improve monitoring, diagnosis and maintenance. The goal of this research work is double: firstly, to propose an innovative approach for aerodynamic modelling of VAWTs and secondly, based on this approach, to build a new equivalent electric model for the study, analysis and aerodynamic optimisation of Darrieus type VAWTs. More broadly, this work aims to contribute to the development of new tools, techniques and methods to improve the design, optimization, diagnosis, prognosis and monitoring of Darrieus VAWTs to better ensure their maintenance. The purpose is to provide the scientific community and the wind turbine industry with new tools that can ameliorate the reliability and thus increase performance and efficiency of Darrieus type VAWTs. An equivalent electric circuit model for three-blade DT-VAWT rotors was builded. The new model that we named the Tchakoua model is based on a recently developed approach for modelling DT-VAWT rotors using the equivalent electrical circuit analogy. The proposed model was built from the mechanical description given by the Paraschivoiu double-multiple streamtube model and was based on an analogy between mechanical and electrical circuits. Thus, the rotating blades and the blades' mechanical coupling to the shaft are modelled using the mechanical-electrical analogy, and the wind flow is modelled as a source of electric current. Model simulations were conducted using MATLAB for a three-bladed rotor architecture, characterized by a NACA0012 profile, an average Reynolds number of 40,000 for the blade and a tip speed ratio of 5. The results obtained show strong agreement with findings from both aerodynamic and computational fluid dynamics (CFD) models in the literature.
520 $a Les effets conjugues du rechauffement climatique, l'augmentation considerable et continue de la demande energetique mondiale, la volatilite des prix des energies fossiles, la dependance energetique de certains pays non producteurs de petrole, font que les energies renouvelables beneficient actuellement d'un essor tres important. De plus, la facture energetique dans sa hausse vertigineuse entraine les matieres premieres, les biens de consommation et meme les produits de premiere necessite. Il est donc imperatif de reflechir a la diversification des sources d'energie d'une part et aux moyens de produire de l'energie a un coup relativement bas d'autre part. Cette these propose un modele electrique equivalent pour les rotors d'eoliennes a axes vertical. Elle constitue une contribution a la construction d'un modele electrique global de la chaine de conversion eolienne. L'objectif de cette recherche est d'une part de proposer une nouvelle approche de modelisation des eoliennes a axe vertical; et d'autre part d'elaborer, sur la base de cette approche, un nouveau modele pour l'etude, l'analyse et l'optimisation aerodynamique des eoliennes a axe vertical de type Darrieus. De facon plus large, ce travail vise a contribuer au developpement de nouveaux outils, techniques et methodes devant permettre d'ameliorer la conception, l'optimisation, le diagnostic, le pronostic et la surveillance des eoliennes a axe vertical de type Darrieus afin de mieux assurer leur maintenance. La finalite etant de mettre a la disposition de la communaute scientifique et de l'industrie de l'eolienne de nouveaux outils pouvant permettre d'accroitre la performance aerodynamique ainsi que le rendement energetique des eoliennes a axe vertical de type Darrieus. Un modele electrique equivaut pour rotor d'eolienne de type Darrius tri-pales a ete developpe. Ce nouveau modele que nous avons nomme le 'Tchakoua model' est base sur une nouvelle approche de modelisation des rotors d'eoliennes a axe vertical utilisant des circuits electriques equivalents. Le modele a ete construit sur la base de description a double disque actuateur a multiple tubes de vent faite par Paraschivoiu et est base sur l'analogie circuits mecaniques et circuits electriques appliquee a l'aerodynamique. Ainsi, les pales et le couplage mecanique a l'arbre lent sont modelisees en utilisant l'analogie mecanique electrique tandis que l'ecoulement de vent est modelise comme source de courant. Les simulations ont ete effectuees avec le logiciel MATLAB pour un rotor tripal caracterise par un profil NACA0012, un nombre de Reynold moyen de 40000 et une vitesse specifique de 5. Une validation croisee de ces resultats avec les donnees issues des modeles aerodynamiques ou meme des modeles numeriques de dynamique des fluides montre de bonnes concordances.
590 $a School code: 0862.
650 4 $a Electrical engineering. $3 649834
650 4 $a Engineering. $3 586835
650 4 $a Mechanical engineering. $3 649730
650 4 $a Alternative energy. $3 3436775
653 $a Aerodynamic characteristics
653 $a Condition monitoring
653 $a Darrieus wind turbine
653 $a Electric circuit model
653 $a Performance analysis
653 $a Wind energy
690 $a 0544
690 $a 0537
690 $a 0548
690 $a 0363
710 2 $a Universite du Quebec a Chicoutimi (Canada). $b Sciences appliquees. $3 3348137
773 0 $t Dissertations Abstracts International $g 81-04B.
790 $a 0862
791 $a Ph.D.
792 $a 2019
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13901709