scholarly journals New Power Quality Indices for the Assessment of Waveform Distortions from 0 to 150 kHz in Power Systems with Renewable Generation and Modern Non-Linear Loads

Energies ◽  
2017 ◽  
Vol 10 (10) ◽  
pp. 1633 ◽  
Author(s):  
Luisa Alfieri ◽  
Antonio Bracale ◽  
Anders Larsson
Keyword(s):  
Power Systems ◽  
Power Quality ◽  
Renewable Generation ◽  
Quality Indices ◽  
Non Linear ◽  
Waveform Distortions

scholarly journals Simulation and Analysis of a Three-phase Shunt Active Power Filter

2020 ◽  
pp. 162-166
Keyword(s):  
Power Systems ◽  
Power Quality ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Three Phase ◽  
Non Linear ◽  
The Impact

This paper presents the simulation-based study and results of a three-phase shunt active power filter (SAPF) for power quality improvement. The power quality of the power systems is degraded because of the presence of non-linear loads at the consumer end. The SAPF can reduce the impact of harmonics caused by the non-linear loads. The analyzed SAPF system is modeled and simulated using MATLAB-Simulink workspace. The ultimate goal of this study is to improve the total harmonic distortion of the system as per the standards defined by IEEE-519.

scholarly journals Design of Power Quality Virtual Lab Toolbox using LabVIEW/Multisim

2021 ◽  
Vol 19 ◽  
pp. 143-148
Author(s):  
S. Haidar ◽  
◽  
E. Moussa ◽  
M. El Hassan ◽  
M. Badawi El Najjar
Keyword(s):  
Power Systems ◽  
Power Quality ◽  
Power Factor ◽  
Influence Factor ◽  
Harmonic Distortion ◽  
Current Transformer ◽  
Quality Indices ◽  
Voltage Transformer ◽  
Virtual Lab ◽  
Electrical Engineers

This paper presents a Power Quality (PQ) virtual lab that can be used by electrical engineers (EE) to enhance their knowledge and awareness on power quality disturbances in accordance to power quality standards. It will offer the EE the facility to become more aware about the problems tackling power systems and nonlinear devices, and their effects on the power quality indices. This work is built using NI LabVIEW/Multisim and is composed out of many simulations and experiments each with its learning objectives. The established measured power quality indices are mainly the root mean square (RMS), the total harmonic distortion (THD), the distortion index (DIN), the telephone influence factor (TIF), the crest factor (CF), the voltage transformer product (VT), the current transformer product (IT), the displacement power factor (DPF), the true power factor (TPF) and the unbalance factor (UF). Each of these indices is measured and analyzed in order to check how they are affected by the PQ issues.

scholarly journals A methodical approach and computer programs to determine the power of active harmonic filters

2021 ◽  
Vol 289 ◽  
pp. 01001
Author(s):  
Bui Ngoc Hung ◽  
Lidiia I. Kovernikova
Keyword(s):  
Power Systems ◽  
Computer Program ◽  
Power Quality ◽  
Electrical Power ◽  
Computer Programs ◽  
Electrical Network ◽  
Quality Indices ◽  
The Poor ◽  
Methodical Approach ◽  
Harmonic Filter

Poor power quality creates big problems. With the poor power quality, the service life of the equipment is reduced. In connection with the creation and development of intelligent electrical power systems and the digital economy, the requirements for the power quality are increasing. Active harmonic filters began to used to solve problem with the poor power quality. The paper presents a methodical approach and computer programs for determining the power of the active harmonic filter. The power supply system of the Vietnamese coal sorting plant is considered to develop the methodical approach. The results of measurements of the power quality indices and the results of calculating the parameters of the modes of the electrical network of the plant at the fundamental frequency were used. To process a large amount of measured information, the special computer program was developed. On the basis of the methodical approach, the results of measurements of the power quality indices and the computer complex “Stationary permissible optimal mode”, the algorithm and the computer program have been developed to calculate the power of the active harmonic filter. The power of the active harmonic filter for the coal sorting plant was determined with the help of this program.

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