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Authors: Zhida Deng 1 ; Grazia Todeschini 1 ; Kah Leong Koo 2 and Maxwell Mulimakwenda 2

Affiliations: 1 Faculty of Science and Engineering, Swansea University, Swansea, U.K. ; 2 Power Quality and Modelling Department, National Grid, Warwick, U.K.

Keyword(s): Harmonics, Power Quality, Power Systems Modelling, Renewable Energy Sources, Total Harmonic Distortion, Voltage Unbalance.

Abstract: With the increasing number of Renewable Energy Sources connected to the power grid, the impact on system operation is becoming more evident. To assess this impact, accurate computer models are required for both the power system and the devices connected to it. Various types of system integration studies need to be performed in order to study both steady-state and abnormal operation. Among the steady-state analyses, power quality studies assess the impact of Renewable Energy Sources on parameters such as voltage levels and harmonic content. Harmonic studies are gaining more attention because of the nature of renewable energy sources which are mainly connected to the power grid through electronic power converters, thus producing undesirable harmonics. This paper analyses various settings, solvers and harmonic source models in a commercial software – DIgSILENT PowerFactory – to ensure accurate calculation and correct interpretation of harmonic assessment. A simple model comprising seven harmonic devices is used for the analysis of various case studies. Their results are then compared with the standard IEC model and recommendations are proposed on how to appropriately model the RESs depending on the specific application considered. (More)

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Paper citation in several formats:
Deng, Z.; Todeschini, G.; Koo, K. and Mulimakwenda, M. (2021). Modelling Renewable Energy Sources for Harmonic Assessments in DIgSILENT PowerFactory: Comparison of Different Approaches. In Proceedings of the 11th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH; ISBN 978-989-758-528-9; ISSN 2184-2841, SciTePress, pages 130-140. DOI: 10.5220/0010580101300140

@conference{simultech21,
author={Zhida Deng. and Grazia Todeschini. and Kah Leong Koo. and Maxwell Mulimakwenda.},
title={Modelling Renewable Energy Sources for Harmonic Assessments in DIgSILENT PowerFactory: Comparison of Different Approaches},
booktitle={Proceedings of the 11th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH},
year={2021},
pages={130-140},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010580101300140},
isbn={978-989-758-528-9},
issn={2184-2841},
}

TY - CONF

JO - Proceedings of the 11th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH
TI - Modelling Renewable Energy Sources for Harmonic Assessments in DIgSILENT PowerFactory: Comparison of Different Approaches
SN - 978-989-758-528-9
IS - 2184-2841
AU - Deng, Z.
AU - Todeschini, G.
AU - Koo, K.
AU - Mulimakwenda, M.
PY - 2021
SP - 130
EP - 140
DO - 10.5220/0010580101300140
PB - SciTePress