Buscar
Mostrando ítems 1-10 de 250
Fault Current of PV Inverters Under Grid-Connected Operation: A Review
(Springer, 2021-05-08)
As well as many benefits, many conflicts arise with the large-scale connection of distributed generation (DG) in distribution networks. Leading the protection devices to malfunction and increasing the complexity of fault ...
Automatic Fault Detection in a Cascaded Transformer Multilevel Inverter Using Pattern Recognition Techniques
(Lecture notes in Computer Science, 2020)
Fault diagnosis in grid-connected PV NPC inverters by a model-based and data processing combined approach
(IET, 2019-10)
This paper presents a fault detection and isolation (FDI) method for open-circuit faults (OCF) in the switching devices of a grid-connected neutral-point-clamped (NPC) inverter for photovoltaic (PV) applications. The ...
Fault-Tolerant Reconfiguration System for Asymmetric Multilevel Converters Using Bidirectional Power Switches
(IEEE, 2009)
Asymmetric multilevel converters can optimize the number of levels by using H-bridges scaled in the power of three. The shortcoming of this topology is that the H-bridges are not interchangeable, and then, under certain ...
Fault-Tolerant inverter for Power Flow Control in Variable-Speed Four-Wire Permanent-Magnet Generators
(Institute of Electrical and Electronics Engineers, 2015-11)
A strategy for fault detection and tolerance on the inverter that controls power flow in variable-speed permanent-magnet generators is proposed in this paper. The performance of the proposed strategy is analyzed in two ...
Tectonic styles and crustal shortening of the Central Andes “Pampean” flat-slab segment in northern Chile (27–29°S)
(Elsevier, 2016)
The Andean orogenic belt, located in the Central Andes "Pampean flat-slab" segment in northern Chile (27-29 degrees S), is composed of two major tectonic regions: the Coastal Cordillera and the Frontal Cordillera. To ...
Tectonic inversion and magmatism in the Lautaro Basin, northern Chile, Central Andes: A comparative approach from field data and analog models
(Elsevier, 2016-03)
We present the results of a series of analog models addressing the relationships between tectonic inversion and magmatism, taking the Lautaro Basin in northern Chile (27-28 degrees S), Central Andes as a natural case. The ...
Contribuições para a detecção e identificação de faltas em inversores Multiníveis
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia ElétricaAutomação e Sistemas; Engenharia de Computação; Telecomunicações, 2008-11-19)
This work presents contributions in the detection and identication of faults in multilevel inverters through the study of the converters behavior under these operation conditions. Basically, the approached fault consists ...
Survey on fault operation on multilevel inverters
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2010)
Estudo comparativo de ferramentas estatísticas em falhas de máquinas elétricas
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia ElétricaUTFPR, 2019-06-26)
This work presents a comparison between methodologies used to detect and classify faults in tree-phase induction motors driven by frequency inverters. The applied method was the analysis of the current signals with stator, ...