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Chemical Frustration in Dynamic Multilevel Systems
(Natural & Life Science, 2020-10)
Dynamic multilevel systems constructed with sequential-communicating reactions are a poorly studied type of thermodynamic systems. Recent work of our group showed that multilevel sequential systems are history-dependent ...
Automatic Fault Detection in a Cascaded Transformer Multilevel Inverter Using Pattern Recognition Techniques
(Lecture notes in Computer Science, 2020)
Asymmetrical Multilevel Inverter for Traction Drives Using Only One DC Supply
(2010)
The main advantage of asymmetrical multilevel inverters is the optimization of levels with a minimum number of power supplies. However, this optimized multilevel system still needs a large number of isolated and floating ...
Theorizing ICT and society in the Brazilian context: a multilevel, pluralistic and remixable framework
(ANPAD - Associação Nacional de Pós-Graduação e Pesquisa em Administração, 2012-09-01)
In this paper we present a multilevel and pluralistic conceptual framework that is particularly useful for Brazilian researchers investigating information and communication technology (ICT) based social changes from a ...
Dynamic DC-Link Voltage Control of Back to Back Modular Multilevel Converter for Drive Applications
(IEEE, 2019)
In this work a dynamic control of the dc-link voltage in a hybrid Back-to-Back (BtB) Modular Multilevel Converter for medium-voltage drive applications is presented. The proposed control scheme relates the speed of the ...
A multilevel approach for overlapping community detection
(Universidade de São Paulo - USPUniversidade Federal de São Carlos - UFSCarCentro de Robótica de São Carlos - CROBSociedade Brasileira de Computação - SBCSociedade Brasileira de Automática - SBASão Carlos, 2014-10)
Many real world complex networks have an a overlapping community structure, in which a vertex belongs to one or more communities. Numerous approaches for crisp overlapping community detection were proposed in the literature, ...
Vector control of a modular multilevel matrix converter operating over the full output-frequency range
(Institute of Electrical and Electronics Engineers Inc., 2019)
© 1982-2012 IEEE. The modular multilevel matrix converter (M 3 C) is an ac-to-ac converter topology suitable for the control of high-power variable-speed drives. The control of this converter is complex, particularly when ...
Control of the Modular Multilevel Matrix Converter for Wind Energy Conversion SystemsControl of the modular multilevel matrix converter for wind energy conversión systems
(2017)
The nominal power of single Wind Energy Conversion Systems (WECSs) has been steadily growing,
reaching power ratings close to 10 MW. In the power conversion stage, medium-voltage power
converters are replacing the ...
Balancing Energy and Low Frequency Operation of the Modular Multilevel Converter in Back to Back Configuration
(2015)
The modular multilevel topologies are the
next generation of power converters for applications where
high power-voltage is necessary, such as traction systems,
marine propulsion and Wind Energy Conversion Systems.
In this ...
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 ...