Publisher DOI: 10.1016/j.egyr.2022.12.135
Title: Semi-explicit multilinear modeling of a PQ open-loop controlled PV inverter in αβ-frame
Language: English
Authors: Kaufmann, Christoph 
Pangalos, Georg 
Lichtenberg, Gerwald  
Gomis-Bellmunt, Oriol 
Editor: Malik, Om P. 
Keywords: Differential–algebraic equations; Multilinear modeling; Power systems simulation
Issue Date: 1-May-2023
Publisher: Elsevier
Journal or Series Name: Energy reports 
Volume: 9
Issue: Supplement 3, 2022 The 3rd International Conference on Power, Energy and Electrical Engineering
Startpage: 354
Endpage: 360
Conference: International Conference on Power, Energy and Electrical Engineering 2022 
Abstract: 
This paper introduces semi-explicit multilinear modeling to ac power systems, including voltage source converters. Firstly, the novel semi-explicit multilinear modeling class is explained. Then this class is applied to a small example of PV inverter connected to an infinite bus. Some part of the nonlinear current reference calculation is expressed as a multilinear algebraic constraint. The formulation of this multilinear algebraic constraint allowed modeling the whole nonlinear inverter as a semi-explicit multilinear model. The novel modeling approach is compared with common nonlinear time-based simulation in Simulink. The results show a good approximation of the nonlinear model by its semi-explicit multilinear model where the relative error is below 10−3%. This low error motivates the further usage of the semi-explicit multilinear modeling class for power system analysis.
URI: http://hdl.handle.net/20.500.12738/13904
ISSN: 2352-4847
Review status: This version was peer reviewed (peer review)
Institute: Fakultät Life Sciences 
Department Medizintechnik 
Type: Article
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