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Sistema de emulação de rede com conversor multinível em cascata e controle preditivo por modelo para teste de recursos energéticos distribuídos
(Universidade Federal de Santa Maria, 2023-08-11)
This Doctoral Thesis proposes a grid emulation system for Distributed Energy Resources (DER) testing using a cascaded multilevel converter, with the aim of mitigating
problems related to two-level converters that exist ...
Biochar como suporte de fotocatalisadores a base de ferro para degradação de corantes via processo foto-fenton heterogêneo
(Universidade Federal de Santa Maria, 2023-07-17)
Rhodamine B, ponceau, methylene blue and tartrazine dyes are among the most commonly used
dyes in the textile and food industries. One of the main techniques studied to remove these
pollutants from wastewater are the ...
Processos adsortivos aplicados à desfluoretação de água subterrânea para abastecimento humano
(Universidade Federal de Santa Maria, 2019-04-26)
Fluoride (Fˉ) is an element that is commonly present in groundwater, and that in excessive
concentrations may make it unfit for consumption. Contamination of groundwater by fluoride
ions may occur through natural processes ...
Diretrizes para avaliação de ruído de tráfego rodoviário visando a elaboração de mapas de ruído
(Universidade Federal de Santa Maria, 2023-08-10)
The development of cities and the growth of motorized vehicles have increased urban
noise significantly. Given this, assessing noise levels in urban environments and implementing
appropriate noise control measures are ...
Contributions for compliance testing of inverterbased resources using hardware in-the-loop
(Universidade Federal de Santa Maria, 2023-08-07)
A geração renovável através de recursos baseados em inversores (RBI), como energia solar
fotovoltaica (FV) e energia eólica é a fonte de energia com crescimento mais rápido em todo o
mundo. Muitos parques fotovoltaicos ...
Desenvolvimento de nanofibras a partir de polímeros reciclados para remoção de metais pesados
(Universidade Federal de Santa Maria, 2023-08-17)
Contamination of water resources by heavy metals and the increasing generation of polymeric
waste are aggravating problems in modern society, capable of causing diverse and severe
impacts on the environment and human ...
Contaminação por glifosato e 2,4-D sob efeito de chuva intensa: reflexos no solo, água de escoamento superficial e planta
(Universidade Federal de Santa Maria, 2023-08-22)
The use of pesticides, throughout global agricultural development, has generated discussions
related to residual effects, mainly on water, soil and non-target plants. Among the pesticides
questioned in terms of product ...
Sintonia automática baseada em otimização por enxame de partículas aplicada a controladores de corrente de conversores conectados à rede
(Universidade Federal de Santa Maria, 2023-08-28)
This work presents procedures of automatic tuning of state feedback controllers
applied to grid-connected converters. The methodology employed here is comprised by
the following steps: i) modeling the converter and the ...
Desenvolvimento e aplicação de unidades de desfluoretação para tratamento de água
(Universidade Federal de Santa Maria, 2023-08-29)
Fluoride is an element present in groundwater and is associated with health benefits, however,
in concentrations, generally above 1.5 mg L-1, these benefits can become risks. So that water
with excess fluoride can be ...
Produção contínua de ésteres metílicos de ácidos graxos a partir do óleo de soja degomado com carbonato de dimetila em condições pressurizadas
(Universidade Federal de Santa Maria, 2023-08-29)
The continued growth in biodiesel production has encouraged the exploration of new
approaches. One of these approaches is the interesterification route, using dimethyl carbonate
(DMC) as a reagent, which can be obtained ...