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

A Novel Method of Detecting Measurement Uncertainty of Voltage Deviation

2013 ◽  
Vol 805-806 ◽  
pp. 688-692
Author(s):  
Xin Fang ◽  
Xue Liang Huang ◽  
Yan Zhu
Keyword(s):  
Measurement Uncertainty ◽  
Power Quality ◽  
National Standards ◽  
Measurement Time ◽  
Time Interval ◽  
Basic Measurement ◽  
Voltage Deviation ◽  
Novel Method ◽  
Simulation Results

Nowadays, there are various devices to detect the power quality of AC grid, where uncertainty of voltage deviation is an important parameter to investigate the power quality. National standards specify several sinusoidal waveforms to detect it, usually implemented into the detecting devices. But these waveforms are not enough and a novel method of detecting measurement uncertainty of voltage deviation is proposed in this paper. A series of detection waveforms are designed using this method. The simulation results verify that the method is available to measure uncertainty of voltage deviation more accurately. Moreover, it can be used to justify whether the basic measurement time interval of voltage deviation meets IEC standard requirements.

A New PWM Scheme to Improve the Input Power Quality of 18-Pulse Rectifier Fed 3-level NPC Inverter Based Induction Motor Drive

2021 ◽  
Author(s):  
Sharmin Shila ◽  
Shuvra Prokash Biswas ◽  
Md. Rabiul Islam ◽  
Md Moktadir Rahman ◽  
GM Shafiullah ◽  
...  
Keyword(s):  
Induction Motor ◽  
Power Quality ◽  
Input Power ◽  
Motor Drive ◽  
Induction Motor Drive

A PERSPECTIVE OF ENERGY AND POWER QUALITY OF DATA CENTER ON THE GRID

2021 ◽  
Author(s):  
J. Sutaria ◽  
S. Hajizadeh ◽  
S. Rönnberg ◽  
A. Krook-Riekkola
Keyword(s):  
Power Quality ◽  
Data Center ◽  
Quality Of Data
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