Modular modelling of combined AC and DC systems in dynamic simulations

Abstract

A formulation is proposed in which an AC-DC system is modeled as a combination of AC grids, DC grids, injectors, AC two-ports and AC/DC converters, respectively. This modular modelling facilitates the dynamic simulation of future complex AC/DC systems. Furthermore, it can be exploited by the solver, which performs less operations on components with lower dynamic activity, and offers parallel processing of the time simulation. This approach is illustrated on a test system in which a multi-terminal DC grid connects two asynchronous AC systems, allows frequency support between them, and acts as emergency control against AC voltage instability.

Metadata

Authors/Creators:	Aristidou, P https://orcid.org/0000-0003-4429-0225 Papangelis, L Guillaud, X Van Cutsem, T
Copyright, Publisher and Additional Information:	(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Keywords:	Time simulation; phasor approximation; AC/DC systems; multi-terminal DC system; domain decomposition methods; Schur complement; parallel processing
Dates:	Published: 31 August 2015
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	12 Jul 2018 12:03
Last Modified:	13 Jul 2018 19:17
Status:	Published
Publisher:	IEEE
Identification Number:	https://doi.org/10.1109/PTC.2015.7232324
Related URLs:	Author

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Modular modelling of combined AC and DC systems in dynamic simulations

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