Buscar
Itens para a visualização no momento 1-10 of 56
Conversor ANPC com porta CC bidirecional secundária para conexão de sistemas de armazenamento de energia
(Universidade Federal de Santa Maria, 2020-11-06)
This doctoral dissertation presents a new multilevel converter topology, derived from the ANPC inverter, which allows the connection of energy storage systems directly to the topology in a secondary DC port. In this way, ...
Análise da eficácia luminosa de sistemas de iluminação com comunicação agregada
(Universidade Federal de Santa Maria, 2020-10-09)
Visible light communication (VLC) currently receives attention in the consumer electronics
media mainly because of the potential to improve the data rate of Internet access in short
range mobile communications, yet several ...
Co-otimização de fluxo de potência ótimo dinâmico baseado em preço com agendamento de reparos
(Universidade Federal de Santa Maria, 2020-12-21)
The main objective of the electric distribution system operators is to supply energy to the
loads at the lowest generation cost over a given time horizon, anticipating sudden changes
in demand and generation, a problem ...
Matheurística dinâmica e pro-ativa integrada a inversores híbridos para o gerenciamento robusto de recursos energéticos distribuídos
(Universidade Federal de Santa Maria, 2020-12-18)
The growing adhesion of residential consumers to renewable sources of Distributed Generation (DG), through small generation systems, combined with the perspective of Energy Storage Systems (ESS) in integration with energy ...
Rede neural NARX aplicada ao amortecimento de oscilações de potência
(Universidade Federal de Santa Maria, 2020-10-29)
The dynamics of power systems with time-varying and non-linear elements is a
complex matter since it involves continuous adjustments among every part for a
suitable and efficient performance. Small disturbances in the ...
Gerenciamento da operação de usinas virtuais em sistemas elétricos com recursos energéticos distribuídos baseada em eventos
(Universidade Federal de Santa Maria, 2020-02-20)
This doctoral thesis proposes a stochastic planning method to build multiobjective optimization
models for planning and managing virtual plants (VPP) with distributed generation, simulating
a set of features based on ...
Análise da estabilidade de conversores conectados a redes elétricas com baixo SCR
(Universidade Federal de Santa Maria, 2021-07-22)
This Ph.D. thesis presents an analysis on the influence of the synchronism system
on three-phase converters connected to weak grid combining state space approaches
and matrix transfer functions. The generation system ...
Uma abordagem para atestar a suportabilidade dielétrica a formas de onda não padronizadas nos ensaios de equipamentos de alta tensão
(Universidade Federal de Santa Maria, 2021-08-31)
The non-standard waveforms caused by high frequency transients pose a challenge when it comes to their representation in testing high-voltage equipment. Such a challenge is worrisome for electric power utilities and ...
Um controlador adaptativo robusto por modelo de referência e Super-Twisting Sliding Mode aplicado na regulação de corrente de conversores conectados à rede com filtro LCL
(Universidade Federal de Santa Maria, 2021-12-03)
This thesis presents the development of an RMRAC-STSM control structure, composed
by a robust model reference adaptive controller (RMRAC) along with an adaptive Super-
Twisting Sliding Mode (STSM) controller. A continuous ...
Contribuições para a modelagem, analise, projeto e controle do conversor ressonante LLC driver de LED
(Universidade Federal de Santa Maria, 2021-06-11)
This work presents several contributions to the modeling, analysis, design, and control of the LLC
resonant LED driver. Initially, the LLC resonant LED driver dynamic model accuracy is improved by
taking into account ...