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Estudo, controle e modelagem do conversor dual active bridge (dab) para conexão no sistema elétrico de potência
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2022-02-18)
This work proposes to design, analyze and develop a bidirectional DC-DC converter
to perform the interface between a renewable source (wind or solar for example) and a
battery bank so that the power flow through this ...
Energy Balancing Improvement of Modular Multilevel Converters under Unbalanced Grid Conditions
(Institute of Electrical and Electronics Engineers, 2017-08)
This paper presents a feedback/feed-forward control strategy to improve the voltage balancing of modular multilevel converters (MMCs) under unbalanced grid conditions. The inclusion of a feed-forward compensation improves ...
Modelagem e controle do conversor DAB para interface entre banco de baterias e sistema elétrico de potência
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2017-08-07)
This Master's Dissertation presents the development of a Dual Active Bridge (DAB) converter for charging a battery bank, which is connected to a DC bus, which is connected to the electric power system by means of an inverter. ...
Otimização do rendimento do conversor DAB aplicado ao transformador eletrônico
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2015-08-27)
This work developed a deep investigation about different three level three level
modulation patterns that the DAB converter can operate, and the impact of these different
patterns over the converter power flow and ...
A WTS Power Conversion Stage With Multilevel Converters Operating in the Medium Voltage Range
(Pergamon-Elsevier Science Ltd, 2012-07)
A high power medium voltage converter for wind turbine system is presented in this paper. The proposal mitigates classic design tradeoffs around low voltage, high current link between the generator and the utility grid on ...
Digital control of a voltage-mode synchronous buck converter
(Institute of Electrical and Electronics Engineers, 2006-01-03)
A digital control algorithm capable of separately specifying the desired output voltage and transient response for a synchronous buck converter operating in voltage mode was developed. This algorithm is based on superimposing ...
IDA-PBC control of a DC–AC converter for sinusoidal three-phase voltage generation
(Taylor & Francis Ltd, 2017-01)
An interconnection and damping assignment (IDA) controller is proposed for regulating the output voltage and frequency of a three-phase DC–AC converter, independently of the supplied load. A modified IDA strategy is used ...
Trapezoidal Current Mode for Bidirectional High Step Ratio Modular Multilevel dc-dc Converter
(IEEE, 2019)
High voltage direct current (HVDC) transmission systems and low voltage direct current (LVDC) networks are becoming popular due to their advantages and present feasibility, mainly pushed by the advance in power electronics. ...
UPQC implemented with Cascade Asymmetric Multilevel Converters
(Elsevier Science Sa, 2015-07)
The power quality (PQ) in distribution systems is affected by the pollution introduced by the customers. The Unified Power Quality Controller (UPQC) custom power device is the most integral actuator to improve the quality ...
Adaptive Control Strategy for VSC-Based Systems under Unbalanced Network Conditions
(Institute of Electrical and Electronics Engineers, 2010-12)
A new adaptive control strategy, intended to improve the ride-through capability of HVDC systems under unbalanced network conditions and parameter uncertainties, is introduced. The proposed strategy resorts to a model ...