We need open platforms driven by specialists, in which queries can be created and collected for long periods and the diagnosis made, based on a rigorous clinical follow-up. In this work, we developed a multi-language robot interface helping to evaluate the mental health of seniors by interacting through questions. The specialist can propose questions, as well as to receive users' answers, in text form. The robot can automatically interact with the user using the appropriate language. It can process the answers and under the guidance of a specialist, questions and answers can be oriented towards the desired therapy direction. The prototype, was implemented on an embedded device meant for edge computing, thus it is able to filter environmental noise and can be placed anywhere at home. The experience is now available for specialists to create queries and answers through a Webbased interface.

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This paper presents the modeling and simulation of a variable speed wind turbine with a doubly fed induction generator and speed control to maximize the generated power. The electronic converter of the generator is vector controlled and the speed control is done indirectly. It was possible to observe the satisfactory functioning of the adopted speed control techinique and the consequent increase in the energy generation of the variable speed wind turbine compared to a fixed speed one. Resumo: Este trabalho apresenta a modelagem e simulação de um aerogerador de velocidade variável com gerador de indução duplamente alimentado e controle de velocidade para maximizar a potência gerada. O conversor eletrônico do gerador é controlado vetorialmente e o controle da velocidade é feito indiretamente. Foi possível observar o funcionamento satisfatório da técnica de controle de velocidade adotada e o consequente aumento na geração energética do aerogerador de velocidade variável em comparação ao de velocidade fixa.

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