Assessment of power quality parameters and indicators at the point of common coupling in a low voltage power grid with photovoltaic generation emulated

2022 ◽  
Vol 203 ◽  
pp. 107679
Author(s):  
Oscar Pinzón-Quintero ◽  
Daniel Gaviria-Ospina ◽  
Alejandro Parrado-Duque ◽  
Rusber Rodríguez-Velásquez ◽  
German Osma-Pinto
Keyword(s):  
Power Quality ◽  
Low Voltage ◽  
Power Grid ◽  
Quality Parameters ◽  
Photovoltaic Generation ◽  
Point Of Common Coupling ◽  
Common Coupling

scholarly journals Experimental data on power quality assessment at point of common coupling of a steel mill to an electric power grid

Data in Brief ◽  
2021 ◽  
Vol 39 ◽  
pp. 107681
Author(s):  
Emenike Ugwuagbo ◽  
Adeola Balogun ◽  
Ayobami Olajube ◽  
Osita Omeje ◽  
Ayokunle Awelewa ◽  
...  
Keyword(s):  
Experimental Data ◽  
Quality Assessment ◽  
Electric Power ◽  
Power Quality ◽  
Power Grid ◽  
Steel Mill ◽  
Electric Power Grid ◽  
Point Of Common Coupling ◽  
Common Coupling

Power Quality Assessment and Enhancement in a Grid Connected Renewable Energy System Using Dynamic Voltage Restorer

2014 ◽  
Vol 573 ◽  
pp. 716-721
Author(s):  
S. Rajeshbabu ◽  
B.V. Manikandan
Keyword(s):  
Neural Network ◽  
Renewable Energy ◽  
Power Quality ◽  
Energy System ◽  
Dynamic Voltage Restorer ◽  
Renewable Energy System ◽  
Voltage Restorer ◽  
Point Of Common Coupling ◽  
Dynamic Voltage ◽  
Common Coupling

Renewable energy sources provide the additional/satisfy the power to the consumer through power electronics interfaces and integrated with the grid. In grid integration power quality is one of the important parameter that need to be paying more attention. This proposed work focuses on power quality issues in a grid connected renewable energy system. Power quality issues will arises due to many factors here with the by introducing a fault condition in a grid connected renewable energy system the measurements were made at the point of common coupling and the mitigation is done with the help of a dynamic voltage restorer. The dynamic voltage restorer is a device which offers series compensation activated by neural network based controller. The sag improvement and the total harmonic assessment were made at the point of common coupling. Keywords: Neural network, Point of common coupling, Renewable energy source, Power quality, Dynamic voltage restorer ,electric grid.

scholarly journals Problems of the Estimation of the Consumer’s Contribution to the Power Quality Distortion in the Point of Common Coupling

2017 ◽  
pp. 12-19 ◽  
Author(s):  
Dmitrii V. DVORKIN ◽  
◽  
Maxim A. SILAYEV ◽  
Vladimir N. TUL’SKII ◽  
Stefan PALIS ◽  
...  
Keyword(s):  
Power Quality ◽  
Point Of Common Coupling ◽  
Common Coupling

scholarly journals Influence of Measurement Aggregation Algorithms on Power Quality Assessment and Correlation Analysis in Electrical Power Network with PV Power Plant

Energies ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3547 ◽  
Author(s):  
Jasiński ◽  
Sikorski ◽  
Kostyła ◽  
Kaczorowska ◽  
Leonowicz ◽  
...  
Keyword(s):  
Power Plant ◽  
Correlation Analysis ◽  
Quality Assessment ◽  
Power Quality ◽  
Low Voltage ◽  
Electrical Power ◽  
Weather Conditions ◽  
Comparative Investigation ◽  
Quality Parameters ◽  
Voltage Variation

Recently a number of changes were introduced in amendment to standard EN 50160 related to power quality (PQ) including 1 min aggregation intervals and the obligation to consider 100% of measured data taken for the assessment of voltage variation in a low voltage (LV) supply terminal. Classical power quality assessment can be extended using a correlation analysis so that relations between power quality parameters and external indices such as weather conditions or power demand can be revealed. This paper presents the results of a comparative investigation of the application of 1 and 10 min aggregation times in power quality assessment as well as in the correlation analysis of power quality parameters and weather conditions and the energy production of a 100 kW photovoltaic (PV) power plant connected to a LV network. The influence of the 1 min aggregation time on the result of the PQ assessment as well as the correlation matrix in comparison with the 10 min aggregation algorithm is presented and discussed.

Determining Harmonic Contributions Based on Reweighted Complex Least Squares Method

2013 ◽  
Vol 448-453 ◽  
pp. 2660-2666
Author(s):  
Hui Chun Hua ◽  
Xiu Fang Jia ◽  
Hai Qing An ◽  
Shao Guang Zhang
Keyword(s):  
Quality Management ◽  
Least Squares ◽  
Power Quality ◽  
Least Squares Method ◽  
Test System ◽  
Important Task ◽  
Reasonable Result ◽  
Point Of Common Coupling ◽  
Common Coupling

Determining harmonic contribution quantitatively at the point of common coupling is an important task for power quality management. Outliers and influential points could have strong influences on regressors. This paper puts forward a method named reweighted complex least squares to eliminate or reduce the influences to ensure the robustness of the regression. The method can improve precision of the equivalent harmonic impedance and it can get a more reasonable result in harmonic contribution determination than previous methods. A case study based on the IEEE 14-bus test system was conducted, which shows the validity of the proposed method.

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