This thesis deals with the design of electrical control for a constant speed propeller. The objective of this paper is to demonstrate the propeller governor design process on a case example of a DMP-3 propeller paired with a Rotax 912 ULS, using knowledge of flight mechanics, electrical engineering and automation. The scope of this thesis addresses the problems of propeller pitch control using an electrically driven linear actuator. In conclusion, this paper compares the benefits of the DMP-3 constant speed propeller, considering its use in existing airplanes within the UL-2 and CS-LSA category. Furthermore, it evaluates the capabilities of the proposed electronic governor, and outlines possibility of further development in this field.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This work aims to analyze the dynamic performance of a synchronous generator and its controls in a distributed generation system, as well as evaluate the impacts of its operation when connected to the distribution grid, using for this task the ATPDraw interface/tool of software ATP. Within this context, it is firstly necessary to obtain suitable models to represent the synchronous machine control systems (voltage regulator, speed governor and stabilizer system) in ATPDraw. Furthermore, for stability analysis, it is developed a mathematical technique to calculate the machine power angle which is represented in ATPDraw by a device (icon). The adjustments of voltage and speed control system parameters are performed by some adopted procedures which are verified using two electric systems: the first one with a synchronous generator connected to the distribution grid; and the second with three distinct generators forming a multimachine system. In these systems some disturbances are applied such as load shedding and short-circuit to accomplish the studies. Finally, with the previous results, it is carried out some dynamic performance studies of a synchronous generator of an independent producer connected to a distribution grid so as to assess aspects of power quality (voltage magnitude), stability and to evaluate the influence of machine controls during the system response for a given load shedding. / Este trabalho tem como objetivo analisar o desempenho dinâmico de um gerador síncrono e seus controles, num sistema de geração distribuída, assim como avaliar os impactos causados por este quando da sua operação conectado às redes de distribuição, utilizando a interface ATPDraw do software ATP. Neste contexto, é primeiramente necessário obter modelos adequados para representar os sistemas de controle da máquina síncrona (regulador de tensão e regulador de velocidade e estabilizador do sistema) no ATPDraw. Além disso, para análise de estabilidade é desenvolvido uma técnica matemática para o cálculo do ângulo de potência da máquina a qual é representada no ATPDraw por um dispositivo (ícone). Para ajustar os parâmetros dos sistemas de controle de tensão e de velocidade são apresentados alguns procedimentos adotados, sendo estes verificados por meio de dois sistemas elétricos: o primeiro com um gerador síncrono conectado a uma rede de distribuição; e o segundo composto por três geradores distintos formando um sistema multimáquinas. Nesses sistemas são aplicados distúrbios do tipo rejeição de carga e curto-circuito para realização dos estudos. Finalmente, com os resultados obtidos anteriormente, são realizados estudos do desempenho dinâmico de um gerador síncrono de um produtor independente, conectado a rede de distribuição, para avaliar aspectos de qualidade de energia (magnitude de tensão), de estabilidade e verificar as influências dos controles da máquina durante a resposta do sistema para uma dada rejeição de carga. / Mestre em Ciências

O Aeroporto Internacional Governador André Franco Montoro (GRU), São Paulo, depende inteiramente da água subterrânea para suprir sua demanda. Entretanto, a prática de extração excessiva, que aumenta continuamente para atender à demanda de um número cada vez maior de passageiros e às dificuldades envolvidas com a recarga natural do aqüífero, levou a Empresa Brasileira de Infraestrutura Aeroportuária (Infraero) a procurar outras fontes de abastecimento. Embora a busca de solução para o problema da escassez da água, passe pela opção de recarga gerenciada do aqüífero, a falta da experiência nacional nessa área restringe a tomada da decisão na adoção dessa prática no país. Objetivando contribuir com estudos de viabilidade técnica da recarga gerenciada de aqüíferos em geral e, em particular, do Aeroporto Internacional Governador André Franco Montoro, este trabalho tem o objetivo de verificar, em escala piloto, a capacidade do solo-aqüífero do aeroporto em tratar adequadamente o esgoto gerado localmente. Para atingir esse objetivo, uma área adequada foi selecionada entre as diversas avaliadas, para a construção de uma unidade piloto de recarga de aqüífero. No local selecionado, amostras indeformadas da camada não saturada foram coletadas, caracterizadas e, posteriormente, montadas em colunas experimentais especiais, pelas quais o esgoto foi infiltrado de maneira controlada. Como os resultados desta primeira fase experimental não foram adequadamente atendidos, foi decidido efetuar coletas de amostras indeformadas em uma segunda área do aeroporto, que indicou a existência de uma camada vadosa mais profunda, mas perfil de solo semelhante ao perfil anterior. Os ensaios de colunas foram efetuados com amostras de ambas as áreas, indicando que o solo superficial do aeroporto deverá ser eliminado, ou substituído por uma camada de areia grossa para permitir uma recarga gerenciada que permita a produção de águas com qualidade adequada para os usos preconizados. Os diferentes cenários utilizados nesta pesquisa envolveram a infiltração nas colunas de recarga com esgotos secundários produzidos no aeroporto, após passagem por duas lagoas de retenção, a infiltração do mesmo efluente tratado por um processo físico-químico de coagulação/floculação/sedimentação e pelo mesmo efluente das lagoas de retenção após tratamento por um sistema de membranas de ultrafiltração. Os resultados obtidos são considerados como resultados parciais, uma vez que toda a profundidade do aqüífero não foi utilizada e pelo fato de que, face às restrições acadêmicas vigentes o tempo disponível para a realização da pesquisa foi extremamente restringido. Entretanto, considera-se este trabalho como pioneiro, pelo fato dele se constituir na primeira pesquisa sobre recarga gerenciada no Brasil e, ainda, por fornecer subsídios teóricos e práticos para suportar outros estudos semelhantes que se farão necessários para compreender e promover a prática de recarga gerenciada de aqüíferos no Brasil. / The Governor André Franco Montoro International Airport, São Paulo, entirely depends on groundwater to meet its demand. However, excessive extraction practice which increase continuously in order to attend the demand of increasing number of passengers and the difficulty involved with natural recharge of its aquifer led the Federal Airport Administration Agency (Infraero) to search for other sources of water supply. Although the search for solution for water scarcity problem goes through managed aquifer recharge, lack of national experience in this area restricts decision making in adopting this practice in the country. Contributing to the technical feasibility studies of managed aquifer recharge in general and the Governor André Franco Montoro International Airport in particular, this research has the objective of verifying at the pilot scale level, the capacity of airport soil-aquifer in adequately treating wastewater generated locally. In order to reach this objective, an adequate location was selected within the alternatives evaluated for the construction of a pilot unit for aquifer recharge. Undeformed samples were collected from the unsaturated layer of the selected place, characterized and afterwards, recharged through special experimental columns with wastewater which was filtered in a controlled form. As the results of the first experimental phase were not adequately met, a decision was made to collect undeformed samples from a second location in the airport. The collection indicated the existence of deep unsaturated layer with the soil profile being similar to the profile of the soil layer from which the first samples were collected. The soil column tests were carried out with samples from both areas, indicating that superficial part of airport soil will be eliminated or substituted with a coarse sandy layer in order to permit a managed aquifer recharge which allows production of water that meets the quality of its required uses. Of the different scenarios verified in this research was infiltration of secondary wastewater produced at the airport through soil columns. Another was infiltration of wastewater after its pre-treatment by physicalchemical processes of coagulation/flocculation/sedimentation and still a third scenario, through pre-treatment of secondary effluent by ultrafiltration membrane. The results obtained are considered partial since the total aquifer depth was not used and the fact that academic restrictions limited excessively the time period of the research. However, considering this as a pioneer work, and the fact that it constitutes the first research about managed aquifer recharge in Brazil, and with it, bringing theoretical and practical contributions to support other similar studies which would be necessary in understanding and promoting managed aquifer recharge practice in Brazil.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-03-21T17:50:55Z No. of bitstreams: 1 thiagoresendedealmeida.pdf: 4974622 bytes, checksum: 0f8c86117d7625e1546498cd6c17f367 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-04-24T02:16:26Z (GMT) No. of bitstreams: 1 thiagoresendedealmeida.pdf: 4974622 bytes, checksum: 0f8c86117d7625e1546498cd6c17f367 (MD5) / Made available in DSpace on 2016-04-24T02:16:26Z (GMT). No. of bitstreams: 1 thiagoresendedealmeida.pdf: 4974622 bytes, checksum: 0f8c86117d7625e1546498cd6c17f367 (MD5) Previous issue date: 2013-10-30 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O principal objetivo deste trabalho é avaliar a influência da variação dos parâmetros da rede elétrica em função da frequência do sistema em estudos relacionados à avaliação da segurança de tensão de Sistemas Elétricos de Potência (SEP). Neste sentido, é proposta uma alteração na formulação denominada Fluxo de Potência com Regulação Primária. Tal formulação representa uma modelagem alternativa do problema de Fluxo de Potência, onde a frequência do sistema pode ser estimada com precisão satisfatória. É importante destacar que a metodologia proposta neste trabalho mantém a formulação full Newton do problema. A partir deste contexto são consideradas as variações dos parâmetros da rede, tais como shunts de barra, shunts de linha e o modelo de Linhas de Transmissão e Transformadores, tornando estes parâmetros dependentes com os desvios de frequência do sistema. É também realizada uma avaliação das cargas tipo motor de indução. Assim como os parâmetros da rede, os parâmetros do motor de indução são modificados de acordo com os desvios de frequência do sistema. Em seguida são desenvolvidos estudos de avaliação da segurança de tensão a partir do desenvolvimento e implementação de um Fluxo de Potência Continuado modificado e de uma formulação alternativa do problema de Fluxo de Potência Ótimo (FPO). A partir dessas ferramentas é possível avaliar a variação da frequência do sistema em função do aumento do seu carregamento. Também são feitas análises a partir dos autovalores da matriz Jacobiana do método proposto. Finalmente são utilizados cinco sistemas de pequeno e médio portes para a validação da metodologia proposta. Além de dois sistemas tutoriais de pequeno porte, é utilizado o sistema 16 Barras, que é um sistema criado a partir de dados reais e condições operativas encontradas no Sistema Interligado Nacional (SIN), os sistemas New England e IEEE-118 Barras, que são sistemas testes normalmente utilizados na literatura. O programa ANATEM, desenvolvido pelo CEPEL, é utilizado de forma a validar os desenvolvimentos realizados neste trabalho. / The main objective of this work is to evaluate the influence of varying the network parameters depending on the system frequency in studies related to the voltage security assessment of Electric Power Systems. In this sense, it is proposed a modification in the formulation of the called Governor Power Flow. Such formulation represents an alternative modeling of the power flow problem, where the system frequency can be estimated with satisfactory accuracy. It is important to highlight that in this work the proposed methodology retains full Newton formulation of the problem. From this context it is considered variations of the network parameters, such as shunt devices (capacitors and reactors) and equivalent models of transmission lines and transformers, making them dependent parameters with frequency system. It is also studied the induction motor modeling. As the network parameters, the parameters of the induction motor are modified according to the deviation of system frequency. Then voltage security assessment studies are carried out through the development and implementation of a Modified Continuation Power Flow and an Optimal Power Flow. Using these tools it is possible to evaluate the system frequency variation due to the increase of the system loading. Analyzes are also made using the eigenvalues of the Jacobian matrix associated with the proposed methodology. Finally six systems of small and medium scale are used in validation process of the proposed methodology. In addition to two tutorials small systems are used a 16 buses test system, which is created from real data and operating conditions found in the Interconnected Brazilian System, the well know New England system and the IEEE-118 buses test systems, which are systems commonly used in the literature. The ANATEM program, developed by CEPEL, is used to validate the developments made in this work.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-07-01T14:29:29Z No. of bitstreams: 1 paulaoliveiralagatta.pdf: 1917786 bytes, checksum: 627585584595873c205fcbcf5c79980f (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-07-13T16:01:23Z (GMT) No. of bitstreams: 1 paulaoliveiralagatta.pdf: 1917786 bytes, checksum: 627585584595873c205fcbcf5c79980f (MD5) / Made available in DSpace on 2016-07-13T16:01:23Z (GMT). No. of bitstreams: 1 paulaoliveiralagatta.pdf: 1917786 bytes, checksum: 627585584595873c205fcbcf5c79980f (MD5) Previous issue date: 2012-03-05 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Neste trabalho são propostas duas formulações de importantes ferramentas para análise de redes em regime permanente, onde são consideradas equações que descrevem o comportamento do controle primário e secundário de frequência em sistemas elétricos de potência. A primeira proposta é baseada em uma formulação do problema de fluxo de potência convencional e a segunda uma formulação do fluxo de potência ótimo. A formulação de fluxo de potência proposta é desenvolvida a partir de uma metodologia genérica de representação de dispositivos de controle. Esta metodologia consiste em incorporar as equações que modelam dispositivos de controle ao problema básico de fluxo de potência em coordenadas polares, formando um sistema de equações de ordem (2nb+nc). O fluxo de potência desenvolvido é capaz de estimar os desvios de frequência do sistema devido a uma perturbação da carga. Por outro lado, o fluxo de potência ótimo proposto é capaz de identificar montantes e locais de corte carga, de forma a manter a frequência do sistema em uma faixa aceitável de operação. A formulação proposta de FPO consiste em incluir no problema equações de igualdade e desigualdade associadas com o controle primário de frequência e geração de potência ativa. Os desenvolvimentos propostos para o fluxo de potência convencional foram implementados no ambiente MatLab®. Para solução do fluxo de potência ótimo utilizou-se um pacote comercial de otimização, denominado LINGO®. A avaliação do fluxo de potência e fluxo de potência ótimo propostos é feita através do estudo de sistemas tutoriais e do sistema New England. A validação da análise de desvios de frequência é feita através da utilização do programa ANATEM, desenvolvido pelo CEPEL. Os resultados obtidos mostram as vantagens da utilização das formulações propostas. / This work proposes a new formulation for both the conventional power flow and the optimal power flow formulation, in which the steady-state equations describing the primary and secondary frequency control in electrical power systems are included. The proposed power flow formulation is based on a flexible methodology for the representation of control devices. Such methodology incorporates equations that model control devices into the basic power flow formulation in polar coordinates, generating an augmented system of equations having order (2nb + nc). The developed power flow is able to estimate the system frequency deviation due to a load disturbance. On other hand, the proposed optimum power flow formulation is able to identify the minimum load shedding necessary to maintain the system frequency in an acceptable range of operation. The proposed OPF formulation includes additional equality and inequality constraints to represent the steady state primary frequency control as a function of the active power generation. The proposed development for the conventional power flow was made using the MATLAB® environment. The optimal power flow solution used a commercial optimization package called LINGO®. The evaluation of the proposed power flow and optimal power flow formulations were made through the study of small test systems and the New England test system. Validations of the frequency deviation analysis were made using the program ANATEM, developed by CEPEL. The results obtained show the advantages of using the proposed formulations.

The labor regulation is carried out in different areas with different effects. Regulating the work of a state civil servant is a complex theoretical problem. However, in the practice of regulating the activities of state civil servants, there is an urgent need for its regulation. The purpose of the thesis: to study modern approaches and directions of development of regulation of civil servants timetable in the Russian Federation. In the theoretical part of the work there is an analysis of existing approaches and directions to this problem, it is presented in detail and thoroughly, the assessment and certain conclusions are made. The legal bases of regulation of labor regulation in the civil service are characterized. In the practical part of the work, an attempt was made to normalize the activities of the state civil servants of the Department for working with citizens of the Governor of the Sverdlovsk region and the Government of the Sverdlovsk region. The work is structured and worked out in detail. The information is presented clearly with the use of appropriate theoretical concepts. Graphic methods of presentation are used. / Нормирование труда осуществляется в различных сферах с различным эффектом. Нормирование труда государственного служащего является сложной теоретической проблемой. Однако в практике регулирования деятельности государственных служащих имеется настоятельная потребность в ее нормировании. Цель работы: исследовать современные подходы и направления развития нормирования труда государственных служащих в Российской Федерации. В теоретической части работы подробно и основательно представлен анализ существующих в РФ подходов и направлений к данной проблеме, сделана оценка и определенные выводы. Охарактеризованы правовые основы регулирования нормирования труда на государственной гражданской службе. В практической части работы предпринята попытка осуществить нормирование деятельности государственных гражданских служащих Управления по работе с обращениями граждан Губернатора Свердловской области и Правительства Свердловской области. Работа структурирована, детально проработана. Информация изложена понятно с применением соответствующих теоретических понятий. Используются графические методы изложения.

本論文運用史學、統計與GIS繪圖法，自表至裏，自應用至體制，再至緣由，論述1895～1945年50年間臺灣預防接種史之開展、歷程與引發原因。論證臺灣人用疫苗發展歷史超過百年；日治時期臺灣住民已廣泛接種多量疫苗；臺灣諸免疫界變革不可忽視日本人事體制。 全文首先以法定之傳染病為例，論證疫苗在臺灣民間應用之普遍。首先論述最早在臺灣實施，作為全民接種開始，且採皮上切種之天花種痘，其官方制度演變、於民間推展方法、技術變革與臺日差距（少），以及從統計面所見之臺灣高接種率（社會高免疫力）、低天花感染率和死亡率，和1900年代一遇疫情風聲，即立刻實行臨時接種或擴大定期接種之防疫定制。其次論述血清型疾病預防注射。如1900年鼠疫接種，是臺灣最早由官方執行較大規模針式＼侵入性皮下預防注射之始。但1904年後因花費金額高、人體副作用大而少在臺灣實施。再如霍亂，1902年臺灣已應用霍亂血清，1916年較大規模實施＼實驗，1919～1920年國際霍亂大流行更極力推廣，兩年間，每年各有百餘萬人接種，是各地臺灣人普遍認識和接種預防注射針之始。1918～1920年流行性感冒，確切菌種和傳染原因等等均未知；但當第二波疫情較集中且嚴重時，官方已鼓勵配合副致死病因如肺炎球菌等，實施預防注射，與今日流感疫苗類似。其後，對霍亂或流感使用預防接種之防疫法，終日治結束均為常例。又如流行性腦脊髓膜炎，自1917年臺灣出現購買疫苗案例後，該疫苗自1920年代起即大量應用，1930年代後之接種人數更屢以十萬或百萬為單位。而臺灣1935年前所謂流行性腦炎或腦炎，常是指流行性腦脊髓膜炎；流行性腦炎或腦炎預防接種，實際指流行性腦脊髓膜炎接種。以上各種疫苗大量應用，至約1920年代已形成官方一遇疫情即立刻接種地積極、強力防疫定制，亦影響臺灣該等傳染病感染率和患者死亡率，以及官民對上述傳染病恐懼態度轉變。 繼應用面，本文次論人事、體制之制度面發展。首先，臺灣在1902～1905年，先後出現在臺灣設置血清藥院聲音、鼓勵細菌血清學研究、設置牛疫血清作業所、起議在臺實施全新生兒種痘和創設中央科學研究所。1916年開始製販血清疫苗，擇製本島常見菌種、強調「賣捌」非「販賣」，此後製品種類陸續增加。臺製疫苗亦供應沖繩和中國等等臺灣以外地區。1922年起，臺灣不再製造牛疫血清，改由朝鮮提供防疫之常備用品；1939年士林廠房完工，臺灣開始製造乾燥和精緻血清疫苗。另就中央衛生部人事和業績比較，細菌血清類研究和專任人力常多居各研究單位之首，1920年代達高峰；1930年代研究比重雖看似降低，然其負責人員數量、製劑內容和販賣數量，卻更深刻且快速進展，故臺灣中央一直重視免疫醫學或細菌學研究。而使臺灣於各階段發生細菌學興起、開始製販血清疫苗、研製機構體制和製品製程改變原因，首先，使細菌學、免疫學和血清研製機構在臺展開，首須歸因後藤新平和高木友枝等臺灣首長個人意識，以及其背後穩固之內務省衛生局（行政）、傳染病研究所（技術）和眾議會（審議）等人事資源和總體意向，並因人際網絡使臺灣得參酌美國作法。1916年臺灣開始製販血清疫苗，源自1914年傳研移管；擇製某類型製劑且限定專賣，則為前期人事派系延續和檢定制度便宜之計。傳承人事脈絡與社會局勢，再配合新發地政治社會需求，使1920年代後期起中央研究所人事漸變化，來自地方者再回歸地方，中央日益學術、大學化。最極致表現是1936～1939年中央研究所成為臺北帝大附屬和東大傳研化。此外，臺灣與海外各血清疫苗單位有連絡互通；臺灣是日本諸外地中最早大量製販各種血清疫苗者；也是日本國境內，極少數可以帝大附屬研究所之姿製販血清疫苗者。 / The dissertation aims to use historical data a long with GIS methods to explore the vaccination prevention to certain infectious diseases in colonial Taiwan (1895 – 1945). The smallpox vaccination was the earliest vaccination has been practiced in Taiwan. The change of polices and influstructure in cowpox manufacture revealed how the vaccination adminstration transformed and shaped local society. With the cowpox vaccine popularized, the immunity was gained as well as the low infection and mortality rate after 1910s implied its effectiveness. Secondly, the plague vaccination in 1900~1904 was the first big-scale preventive injection by the Taiwan official, but rarely injected after 1904 due to the high cost and side effects. following that, the cholera serum was often used in scale in 1916 which 3 million people received injecttion during 1919~1920, a period of cholera pandemic. One effective that cholera imunizationleft was that Taiwanese strated to accept needle injection a way of vaccinated prevention. The pandemic influenza invaded Taiwan in 1918~1921but the etiology was unknown currently. As the second wave of the epidemic occurred, the authorities began to pay attention and encouraged people to take injection from indirect causes of death such as pneumococcal. This injection strategy was applied in the whole Japanese ruled era. The epidemic cerebrospinal meningitis, since its vaccination reported in 1917, was larger implemented in the 1920s, then greatly practiced after the 1930s. Furthermore, the epidemic encephalitis or encephalitis named after Taiwan before 1935 usually referred to the epidemic cerebrospinal meningitis. Therefore, the epidemic encephalitis or encephalitis vaccination actually meant the meningococcal meningitis vaccination. In general, most implementation of vaccination appeared around 1916 progressed in 1920s and prevalently practiced after the 1930s. The police of vaccination brought down the infection and mortality rate in Taiwan a long withthe attitude of acceptance to immunization injection among people. Furthermore, Taiwan set up a professional animal serum factory and established the Central Science Institute of Taiwan Governor in 1903. In 1916, Taiwan started to make and sell serums and vaccines to the public which indicated the vaccination were already prevalent among Taiwanese. The govenemnt monopolized the sale of vaccines and the products could however offer to China and other places. In 1939, Taiwan went a step further to manufacture the dried vaccine, toxoid, and anatoxin. The phenomenon above implied various meanings. First, the promotion of bacteriology, immunology and serum in Taiwan were based on personal commitment by Gotou Shinpei (1857-1929) and Takagi Tomoe (1858-1943). With their connection to the Bureau of Sanitation of the Ministry of Interior, the Institute of Infectious Diseases (Kitazato Shibasaburou, 1853-1931), and House of Representatives, their works might link to the Rockefeller Institute which brought strong trust to the developing of bacteriology. In 1916 the attempt to produce and sell vaccine was a side-effect deriving from the domentic friction of the Institute of Infectious Diseases in 1914. It caused by the struggle of the administrative and resources, the dispute of practical and academic, and maturates of the bacteriology; lead to the essentially open to the serums and vaccines market in Japan and its foreign lands, included Taiwan. Taiwan closed to the faction of Kitazato. Soon after, the great spread of infectious diseases in 1918-1921 bright the emergency to apply and manufacture of biologics in 1920s in Japan and all of its territories. Taken the impact, the Central Research Institute of Taiwan Governor changed its infrastructure and products in the 1930s. It is worth noting that the Central Research Institute of Taiwan Governor and the Taiwan Medical Specialized School became branches of the (Taipei and Tokyo) Imperial University in 1936-1939, for the necessity of dried vaccine, toxoid, and anatoxin.

Descendant d’esclaves, Félix Éboué est né dans le milieu de la petite bourgeoisie de Cayenne (Guyane) en 1884. Il termine ses études secondaires à Bordeaux puis ses études supérieures à Paris : il sort diplômé de l’École coloniale en 1908. A sa demande, il est affecté en Oubangui-Chari (colonie de l’AEF). Il reste en brousse vingt deux ans avant de devenir administrateur en chef (1931). Il est ensuite nommé à différents postes : secrétaire général de la Martinique (1932-1934), secrétaire général du Soudan français (1934-1936), gouverneur de la Guadeloupe (1936-1938), gouverneur du Tchad (1938-1940). A l’été 1940, il choisit le camp de la Résistance avec de Gaulle. Le ralliement du Tchad donne au chef de la France libre un territoire français en Afrique, d’une importance stratégique capitale. En novembre 1940, de Gaulle le nomme gouverneur général de l’AEF à Brazzaville et Compagnon de la Libération. Jusqu’à février 1944, grâce à sa maîtrise de l’administration coloniale, il gère les hommes et les ressources de l’AEF pour le plus grand profit de la France libre et des Alliés. Épuisé et malade, il décède au Caire en mai 1944.La mémoire d’État s’empare de sa mémoire pour en faire rapidement une icône : il entre au Panthéon en mai 1949. Mais, Félix Éboué ne se réduit pas à son mythe : s’il est un personnage emblématique de la IIIe République, il est un homme ancré dans son époque par son appartenance à des réseaux de pouvoirs et par ses idées. Sa spécificité est d’avoir espéré réformer le système colonial et d’avoir cru qu’il était possible de lutter contre le préjugé de couleur, contre le racisme au nom des valeurs de la République. S’il fut un pionnier, c’est par le domaine du sport qui était pour lui un outil par excellence de l’intégration et d’épanouissement de l’individu. / Descendant of slaves, Felix Eboue was born in the middle of the lower middle class of Cayenne (Guiana) in 1884. He finished high school in Bordeaux and his graduate studies in Paris: he graduated from the “Ecole coloniale” in 1908. At his request, he was assigned in Oubangui-Chari (AEF colony). It remains in the bush twenty two years before becoming Chief (1931). He was appointed to various positions: Secretary General of Martinique (1932-1934), Secretary General of the French Sudan (1934-1936), governor of Guadeloupe (1936-1938), governor of Chad (1938-1940). In the summer of 1940, he chose the side of the Resistance with de Gaulle. The rallying Chad gives the leader of Free France, a French territory in Africa, a strategic importance. In November 1940, de Gaulle appointed Governor General of the AEF in Brazzaville and Companion of the Liberation. Until February 1944, thanks to his mastery of the colonial administration, he manages people and resources of the AEF for the benefit of Free France and the Allies. Exhausted and ill, he died in Cairo in May 1944. The memory State seizes his memory to make an icon rapidly enters the Pantheon in May 1949. But Felix Eboue is not limited to the myth: it is an iconic character of the Third Republic, he is a man rooted in his time by his membership in networks of power and ideas. Its specificity is to be hoped reform the colonial system and have believed it was possible to fight against the prejudice of color against racism on behalf of the values of the Republic. If he was a pioneer, this is the sport that was for him an ideal tool for the integration and development of the individual.

La pile à combustible (PàC) est un dispositif qui produit de l'électricité à partir d'une réaction chimique entre l'hydrogène et l'oxygène. Le système à PàC nécessite un certain nombre d'auxiliaires pour fonctionner. Pour cela, un système de commande est indispensable pour optimiser la performance de la PàC.Dans ce travail de thèse, nous nous sommes intéressés à trois types de problématiques de commande de la PàC. La première est celle de l'optimisation de la puissance délivrée par la PàC en contrôlant le rapport d'excès d'oxygène via le débit d'air du compresseur ; en prenant en compte les variations paramétriques, les incertitudes et les perturbations externes. Ce problème est résolu en utilisant la commande non-linéaire par mode glissant d'ordre 2. Deux types d'algorithme sont synthétisés, l'algorithme du mode glissant d'ordre 2 sous-optimal et l'algorithme du Super Twisting adaptatif. Les performances de ces lois de commande ont été validées grâce à un simulateur Hardware In Loop. La deuxième concerne la maximisation de la puissance nette fournie par la pile, tout en maintenant le fonctionnement du compresseur centrifuge dans sa zone nominale et tout en évitant le manque d'oxygène à la cathode, lors des variations rapides de charge. La solution proposée pour résoudre ce problème est un gestionnaire de charge qui consiste en un filtre à coefficient de filtrage ajustable. Deux approches d'ajustement de ce coefficient basées sur la technique de l'Extremum Seeking sont appliquées, comparées et validées expérimentalement. La troisième problématique abordée dans cette thèse est celle de la régulation de la différence de pression entre l'anode et la cathode, lors de variations de charge en présence de variations paramétriques et d'incertitudes. Une solution basée sur un contrôleur multi-variable par mode glissant d'ordre 2 associé à une étude de robustesse est proposée. / The PEM fuel cell is a device which generates electricity from a chemical reaction between hydrogen and oxygen. The PEM fuel cell requires many ancillaries to operate the system. A control system is needed to optimize the performance of the PEMFC. This thesis is focused upon three specific control problems related to PEM fuel cell systems. The first problem is the control of the air (oxygen source) entering in the cathode side of fuel cell. The objective is to regulate the oxygen excess ratio in order to maintain the optimum net power output. This problem has been addressed using nonlinear second order sliding mode controllers, which are robust against parametric uncertainty and external disturbance. The SOSM controllers are based on two algorithms: sub-optimal and adaptive Super Twisting. Their performance is validated through Hardware In Loop simulation. The second problem is to maintain the centrifugal compressor in its operating zone, while avoiding the oxygen starvation in the cathode side during rapid load variations. The proposed solution to this problem is a load governor, which is similar to a variable bandwidth first order linear filter. Two adjustment algorithms have been applied for the bandwidth coefficient, based on the Extremum Seeking technique. Their performance has been validated experimentally. The third problem addressed in this thesis is the regulation of the pressure difference between the anode and the cathode during load variations. The control objective is achieved using second order sliding mode MIMO controller, which has been shown to be robust against parametric uncertainty and external disturbance.

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