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Static Var Compensator and Active Power Filter with Power Injection Capability, Using 27-level Inverters and Photovoltaic Cells
(IEEE, 2006)
An active power filter and static VAr compensator with active power generation capability, has been implemented using a 27-level inverter. Each phase of this inverter is composed of three "H" converters, all of them connected ...
Fault Interpretation Algorithm Using Frequency-Response Analysis of Power Transformers
(Institute of Electrical and Electronics Engineers, 2016-06)
Sweep frequency-response analysis (SFRA) is a powerful technique to detect mechanical damage in transformer windings, such as deformations and displacements, as well as other failures, helping to prevent severe damage. ...
Detection of Failures Within Transformers by FRA Using Multiresolution Decomposition
(Institute of Electrical and Electronics Engineers, 2014-02)
The detection of failures within power transformers is considered an important issue since these components are of critical importance for power system reliability; moreover, their replacement cost is extremely high. In ...
Análise de falhas e defeitos nos transformadores de potência e seus dispositivos
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrotécnica, 2014-07-25)
The purpose of this Completion of Course Work was study and analyzes the faults and defects of power transformers occurring in the electrical system of a certain electric energy company, aiming to contribute to improvements ...
High power machine drive, based on three-stage connection of "H" converters, and active front end rectifiers
(IEEE, 2003)
A three-stage inverter using "H" converters is being analyzed for high power machine drive applications. The great advantage of this kind of converter is the minimum harmonic distortion obtained at the machine side. The ...
High-Power Machine Drive, Using Nonredundant 27-Level Inverters and Active Front End Rectifiers
(2007)
A nonredundant 27-level inverter using ldquoHrdquo converters is being analyzed for high power machine drive applications. The main advantage of this kind of converter is the minimum harmonic distortion obtained at the ...