A survey on statistical indexes applied on frequency response analysis of electric machinery and a trend based approach for more reliable results

2016 ◽  
Vol 137 ◽  
pp. 26-33 ◽  
Author(s):  
Wilson Cesar Sant’Ana ◽  
Camila Paes Salomon ◽  
Germano Lambert-Torres ◽  
Luiz Eduardo Borges da Silva ◽  
Erik Leandro Bonaldi ◽  
...  
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Electric Machinery

scholarly journals FPGA Prototyping Using the STEMlab Board With Application on Frequency Response Analysis of Electric Machinery

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 26822-26838
Author(s):  
Bruno R. Gama ◽  
Wilson C. Sant'ana ◽  
Germano Lambert-Torres ◽  
Camila P. Salomon ◽  
Erik L. Bonaldi ◽  
...  
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Electric Machinery

scholarly journals Online Frequency Response Analysis of Electric Machinery through an Active Coupling System Based on Power Electronics

Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 8057
Author(s):  
Wilson Cesar Sant’Ana ◽  
Germano Lambert-Torres ◽  
Erik Leandro Bonaldi ◽  
Bruno Reno Gama ◽  
Tiago Goncalves Zacarias ◽  
...  
Keyword(s):  
Frequency Response ◽  
Power Electronics ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Online Application ◽  
Grid Voltage ◽  
Coupling System ◽  
Electric Machinery ◽  
Online Measurements ◽  
Basic Concepts

This paper presents an innovative concept for the online application of Frequency Response Analysis (FRA). FRA is a well known technique that is applied to detect damage in electric machinery. As an offline technique, the machine under testing has to be removed from service—which may cause loss of production. Experimental adaptations of FRA to online operation are usually based on the use of passive high pass coupling—which, ideally, should provide attenuation to the grid voltage, and at the same time, allow the high frequency FRA signals to be injected at the machine. In practice, however, the passive coupling results in a trade-off between the required attenuation and the useful area obtained at the FRA spectra. This paper proposes the use of an active coupling system, based on power electronics, in order to cancel the grid voltage at the terminals of FRA equipment and allow its safe connection to an energized machine. The paper presents the basic concepts of FRA and the issue of online measurements. It also presents basic concepts about power electronics converters and the operating principles of the Modular Multilevel Converter, which enables the generation of an output voltage with low THD, which is important for tracking the grid voltage with minimum error.

On the use of hypothesis tests as statistical indexes for frequency response analysis of electric machinery

2017 ◽  
Vol 147 ◽  
pp. 245-253
Author(s):  
Wilson Cesar Sant’Ana ◽  
Camila Paes Salomon ◽  
Germano Lambert-Torres ◽  
Luiz Eduardo Borges da Silva ◽  
Erik Leandro Bonaldi ◽  
...  
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Hypothesis Tests ◽  
Electric Machinery

Estimation and Reduction of Motor Input Surge Voltage using Frequency Response Analysis

2012 ◽  
Vol 132 (8) ◽  
pp. 630-637
Author(s):  
Toru Wakimoto ◽  
Yoshimitsu Takahashi ◽  
Norihito Kimura ◽  
Yukitoshi Narumi ◽  
Naoki Hayakawa
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis

Identification of Trouble of Transformer by Frequency Response Analysis

2009 ◽  
Vol 129 (4) ◽  
pp. 517-525 ◽  
Author(s):  
Satoru Miyazaki ◽  
Yoshinobu Mizutani ◽  
Hiroshi Suzuki ◽  
Michiharu Ichikawa
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis

Diagnosis Criterion of Abnormality of Transformer Winding by Frequency Response Analysis (FRA)

2016 ◽  
Vol 136 (7) ◽  
pp. 654-662
Author(s):  
Satoru Miyazaki ◽  
Yoshinobu Mizutani ◽  
Akira Taguchi ◽  
Junichi Murakami ◽  
Naokazu Tsuji ◽  
...  
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Transformer Winding ◽  
Diagnosis Criterion

MODAL FREQUENCY RESPONSE ANALYSIS OF HUMAN SUBJECT USING FEM

2018 ◽  
Vol 11 (5) ◽  
Author(s):  
Sahil Savara ◽  
Ishbir Singh ◽  
Sachin Kalsi
Keyword(s):  
Frequency Response ◽  
Human Subject ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Modal Frequency
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