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Estudo do controlador LQG/LTR aplicado a inversores monofásicos
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de ElétricaEngenharia ElétricaUTFPR, 2017-11-17)
Distributed generation allows the Brazilian consumer to generate its own electricity and inject surplus into the grid, these systems in their entirety use inverters to connect to the grid. In order for the connection to ...
Nonlinear Control of a Buck Converter Which Feeds a Constant Power Load
(Institute Of Electrical And Electronics Engineers, 2015-12)
In this paper a non-linear control strategy for controlling a dc/dc Buck converter feeding a constant power load is proposed. The main objective of the proposed controller is to improve the transient performance when in ...
Control of a DC-DC Dual Active Bridge Converter in DC Microgrids Applications
(Institute of Electrical and Electronics Engineers, 2021-08)
In this paper, a control strategy for an isolated DCDC dual active bridge converter to adapt different voltage levels in a DC microgrid is proposed. The control strategy allows regulating the output voltage while maintaining ...
Novel zero-current-switching PWM converters
(Institute of Electrical and Electronics Engineers (IEEE), 1997-06-01)
This paper presents a new family of pulsewidth-modulated (PWM) converters, featuring soft commutation of the semiconductors at zero current (ZC) in the transistors and zero voltage (ZV) in the rectifiers, Besides operating ...
Novel zero-current-switching PWM converters
(Institute of Electrical and Electronics Engineers (IEEE), 1997-06-01)
This paper presents a new family of pulsewidth-modulated (PWM) converters, featuring soft commutation of the semiconductors at zero current (ZC) in the transistors and zero voltage (ZV) in the rectifiers, Besides operating ...
Desenvolvimento de um retificador monofásico com alto fator de potência conectado a um inversor de frequência trifásico
(Universidade Tecnológica Federal do ParanáGuarapuavaBrasilEngenharia MecânicaUTFPR, 2016-11-29)
The problems related with the electric energy standards and the demand cause many coupling disorders on the country side, mainly because fields associated to agribusiness activities require uncommon devices. The objective ...
Carregador de baterias microprocessado para aplicação em sistema fotovoltaico
(Universidade Tecnológica Federal do ParanáPato Branco, 2012-12-18)
The use of renewable energy has been the subject of research especially in recent decades, the probable scarcity of fossil fuels and the environmental impacts. In this context solar energy is gaining focus of several studies ...
A novel single-phase ZCS-PWM high power factor boost rectifier
(Institute of Electrical and Electronics Engineers (IEEE), 1997-01-01)
This paper presents a novel single-phase high power factor PWM boost rectifier, featuring soft commutation of the active switches at zero-current (ZCS). It incorporates the most desirable properties of the conventional PWM ...
Conversor CC-CA utilizando célula ZVT
(Universidade Tecnológica Federal do ParanáPato BrancoPrograma de Pós-Graduação em Engenharia Elétrica, 2014-04-26)
This paper discusses above the application of soft-switching techniques to static power conver-ters. The technique discussed in particular consists in provide zero voltage switching (ZVS) to controlled switches. Among the ...
Implementation of a DC-DC converter with variable structure control of switched systems
(2011-09-14)
This paper presents a control method for a class of continuous-time switched systems, using state feedback variable structure controllers. The method is applied to the control of a two-cell dc-dc buck converter and a control ...