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.

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

Application of Dynamic Voltage Restorer for Power Quality Improvement in Low Voltage Electrical Power Distribution Network: An Overview

2017 ◽  
Vol 28 ◽  
pp. 142-156 ◽  
Author(s):  
Patrick Taiwo Ogunboyo ◽  
Remy Tiako ◽  
Innocent E. Davidson
Keyword(s):  
Power Quality ◽  
Power Distribution ◽  
Low Voltage ◽  
Electrical Power ◽  
Distribution Network ◽  
Power Distribution Network ◽  
Dynamic Voltage Restorer ◽  
Voltage Restorer ◽  
Power Quality Improvement ◽  
Dynamic Voltage

Dynamic Voltage Restorer (DVR) is a series connected power electronics based custom power device that is used to improve voltage disturbances in low voltage electrical power distribution network. Power quality requirement is one of the most important concerns for power system. The parts of the DVR is made up of voltage source inverter, injection/booster transformer, a harmonic filter, an energy storage device and a bypass switch. The DVR is used to inject three phase voltage in series and in synchronism with the network voltages in order to compensate voltage disturbances with a benefit of active /reactive power control. This paper presents a review of the researches on the dynamic voltage restorer application for power quality improvement in low voltage electrical power distribution networks. It describes power quality issues, principle of operation of DVR, basic components of DVR, DVRs control topologies in distribution network, DVR control strategies and compensation techniques.

Modelling of a housing estate with micro-combined heat and power for power flow studies

2008 ◽  
Vol 222 (7) ◽  
pp. 721-729 ◽  
Author(s):  
T Sulka ◽  
N Jenkins
Keyword(s):  
Power Flow ◽  
Network Flows ◽  
Low Voltage ◽  
Electrical Power ◽  
Weather Conditions ◽  
Combined Heat And Power ◽  
Electrical Network ◽  
Housing Estate ◽  
High Concentration ◽  
Different Seasons

A high concentration of micro-combined heat and power (mCHP) units leads to difficulties in predicting power flows in low-voltage electrical feeders. A simple model of a house with mCHP generation, which is combined with an estate model, is used to predict electrical network flows. The model of the estate includes representation of the residents’ behaviour and ambient weather conditions. Results for an individual house, as well as electrical power flows for the estate feeder, are shown for three different seasons of a year.

scholarly journals INVESTIGATIONS OF ELECTRIC POWER QUALITY IN AUTONOMOUS LOW POWER PLANT

2017 ◽  
Vol 3 ◽  
pp. 136
Author(s):  
Andrei Khitrov ◽  
Alexander Khitrov ◽  
Evgeny Veselkov ◽  
Vyacheslav Tikhonov
Keyword(s):  
Power Plant ◽  
Low Power ◽  
Electric Power ◽  
Power Quality ◽  
Power Plants ◽  
Low Voltage ◽  
Energy Sources ◽  
Variable Speed ◽  
Electric Power Plants ◽  
Electric Power Quality

Autonomous low power electric power plants working with variable speed energy sources or electric subsystems of cogeneration plants of some type need to increase the low speed or the low voltage of the system. In this paper the investigations and the results of the experiments conducted using different structures are given.

scholarly journals Integration Monitoring of On-grid Photovoltaic System: Case Study

2019 ◽  
Vol 63 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Michał Jasiński ◽  
Jacek Rezmer ◽  
Tomasz Sikorski ◽  
Jarosław Szymańda
Keyword(s):  
Power Quality ◽  
Electrical Power ◽  
Weather Condition ◽  
Weather Conditions ◽  
Photovoltaic System ◽  
Monitoring Systems ◽  
Electrical Power System ◽  
Pv System ◽  
Power And Energy

The aim of the paper is to present possible using of monitoring systems associated with photovoltaic systems (PV) in point of its integration with electrical power system (EPS). Presented investigations is a case study of 15 kW Scientific Photovoltaic System. The paper contains a description of applied control and monitoring systems including monitoring of PV panels parameters, weather condition, PV DC/AC inverters as well as special monitoring systems dedicated to power quality (PQ) and shape of voltage and current. The aim of the paper is to exhibit a possibility to combine different monitoring systems of the PV in order to improve evaluation of integration of PV with EPS. Presented example contains selected elements of power quality assessment, power and energy production, weather conditions for selected period of PV system working time.

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