Open AccessValidation of an open source high voltage grid model for AC load flow calculations in a delimited region
Author(s) -
Peters Dorothee,
Heitkoetter Wilko,
Völker Rasmus,
Möller Axel,
Gross Thorsten,
Petters Benjamin,
Schuldt Frank,
Maydell Karsten von
Publication year - 2020
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2020.0107
Subject(s) - unavailability , grid , computer science , renewable energy , usability , distributed computing , grid connection , topology (electrical circuits) , simulation , reliability engineering , electrical engineering , mathematics , engineering , geometry , human–computer interaction
Large shares of renewable energy production in the electricity grid make grid expansion and new technologies necessary. The unavailability of grid models to address upcoming research questions led to the development of open source grid models. Our work contributes to establish the open_eGo model for grid simulations by validating its assumptions and results for a rural region with high share of wind energy. In particular, assumptions on electrical parameters and the graph structure of the model are compared to the grid owner's model along with a validation of AC load flow results at the model boundaries. It was found that the graph structure deviates in the degree of nodes and connection characteristic. These deviations are less exterior nodes and a lower maximum degree of nodes as well as a higher number of parallel lines in the open_eGo model. The AC load flow results differ slightly in active power and significantly in reactive power, but are more reliable than an aggregation of loads and generation to the extra high voltage (EHV) nodes. Concluding, the open_eGo model has a limited usability for simulating, understanding and optimising DSO grid operation but can enhance EHV‐only analysis in large area contexts.