Dublin Core
Title
INFLUENCE OF THE DISTRIBUTED GENERATION ON THE POWER QUALITY IN DISTRIBUTION NETWORK
Abstract
The aim of this paper is to present and discuss the influence of distributed generation on
power quality. Nowadays, interest in power quality has increased since it has become a very
important issue in power system delivery. One of the major problems of ensuring a certain level of
power quality are harmonics. The aim of this project is to investigate an impact of photovoltaic
(PV) on harmonic voltage distortion (HD) in real MV distribution network. Different scenarios will
be implemented where solar power plant is going to be modelled with high variability of load and
generation to see their effects on the systems power quality (PQ). Those scenarios are when PV is
disconnected from the grid and PVs are connected with 2 different powers. Results presented below
showed that PV improves power quality of the system, because their inverters are source of
harmonics and they increase HD. However, that impact is not very significant and harmonic limits
are not violated. A load flow analysis is done for the model of test system 110/35/10kV in which a
distributed generator is added, that is on-grid or off-grid. The network modelling and simulation is
done in DIgSILENT PowerFactory software.
power quality. Nowadays, interest in power quality has increased since it has become a very
important issue in power system delivery. One of the major problems of ensuring a certain level of
power quality are harmonics. The aim of this project is to investigate an impact of photovoltaic
(PV) on harmonic voltage distortion (HD) in real MV distribution network. Different scenarios will
be implemented where solar power plant is going to be modelled with high variability of load and
generation to see their effects on the systems power quality (PQ). Those scenarios are when PV is
disconnected from the grid and PVs are connected with 2 different powers. Results presented below
showed that PV improves power quality of the system, because their inverters are source of
harmonics and they increase HD. However, that impact is not very significant and harmonic limits
are not violated. A load flow analysis is done for the model of test system 110/35/10kV in which a
distributed generator is added, that is on-grid or off-grid. The network modelling and simulation is
done in DIgSILENT PowerFactory software.
Keywords
DIgSILENT, power system harmonics, PVs, power quality, harmonic
distortion.
distortion.
Identifier
2637-2835
DOI
10.14706/JONSAE2021322