Improving The Power Quality Of A Marine Automated Digital Substation By Using An Active Filter

2021 ◽  
Author(s):  
A. V. Vyngra ◽  
B. A. Avdeev
Keyword(s):  
Power Quality ◽  
Active Filter ◽  
Digital Substation

scholarly journals ANFIS control of a shunt active filter based with a five-level NPC inverter to improve power quality

2021 ◽  
Vol 11 (3) ◽  
pp. 1886
Author(s):  
Mahmoud Mostefa Tounsi ◽  
Ahmed Allali ◽  
Houari Merabet Boulouiha ◽  
Mouloud Denaï
Keyword(s):  
Power Quality ◽  
Fuzzy Inference ◽  
Fuzzy Controller ◽  
Harmonic Distortion ◽  
Active Filter ◽  
Nonlinear Loads ◽  
Inference System ◽  
Shunt Active Filter ◽  
Neuro Fuzzy

This paper addresses the problem of power quality, and the degradation of the current waveform in the distribution network which results directly from the proliferation of the nonlinear loads. We propose to use a five-level neutral point clamped (NPC) inverter topology for the implementation of the shunt active filter (SAPF). The aim of the SAPF is to inject harmonic currents in phase opposition at the connection point. The identification of harmonics is based on the pq method. A neuro-fuzzy controller based on ANFIS (adaptive neuro fuzzy inference system) is designed for the SAPF. The simulation study is carried out using MATLAB/Simulink and the results show a significant improvement in the quality of energy and a reduction in total harmonic distortion (THD) in accordance with IEC standard, IEEE-519, IEC 61000, EN 50160.

Power Quality of PV Multilevel Inverters in Residential Environment

2020 ◽  
Vol 18 ◽  
pp. 419-424
Author(s):  
M. Buzdugan ◽  
◽  
C. Ciugudeanu ◽  
A. Campianu
Keyword(s):  
Power Quality ◽  
Residential Environment ◽  
Multilevel Inverters

Variable-Frequency Prony Method in the Analysis of Electrical Power Quality

2012 ◽  
Vol 19 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Jarosław Zygarlicki ◽  
Janusz Mroczka
Keyword(s):  
Least Squares ◽  
Power Quality ◽  
Electrical Power ◽  
Electric Energy ◽  
Variable Frequency ◽  
Prony Method ◽  
Analysis Window ◽  
Proposed Modification ◽  
Selection Of

Variable-Frequency Prony Method in the Analysis of Electrical Power QualityThe article presents a new modification of the the least squares Prony method. The so-called variable-frequency Prony method can be a useful tool for estimating parameters of sinusoidal components, which, in the analyzed signal, are characterized by time-dependent frequencies. The authors propose use of the presented method for testing the quality of electric energy. It allows observation of phenomena which, when using traditional methods, are averaged in the analysis window. The proposed modification of least squares Prony method is based on introduction and specific selection of a frequency matrix. This matrix represents frequencies of estimated components and their variability in time.

Electrical Power Quality of Iron and Steel Industry in Turkey

2007 ◽  
Author(s):  
O. Salor ◽  
B. Gultekin ◽  
S. Buhan ◽  
B. Boyrazoglu ◽  
T. Inan ◽  
...  
Keyword(s):  
Power Quality ◽  
Steel Industry ◽  
Electrical Power ◽  
Iron And Steel Industry ◽  
Iron And Steel
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