Model reduction of converters for the analysis of 100% power electronics transmission systems
TypeCommunications avec actes
Because of the fast development of wind and solar photovoltaic power plants, as well as the multiplication of high voltage direct current links, the analysis and simulation of large transmission systems with a high penetration of power electronic converters have become necessary. In this situation, reduced models of converters are needed to make the simulation faster and the stability analysis more straightforward. These reduced models need to be accurate enough, depending on the needed accuracy, and they have to keep the physical structure of the converter full model to be easily implemented on classical analysis software. A structure-preserving method to reduce the state order of a grid forming converter model is presented here. It is based on a modal analysis to remove the fastest poles of the system while keeping the slowest almost unchanged.
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A priori error estimation of the structure-preserving modal model reduction by state residualization of a grid forming converter for use in 100% power electronics transmission systems COSSART, Quentin; COLAS, Frédéric; KESTELYN, Xavier (2019)This article deals with the model order reduction by state residualization of power electronic converters. It presents a method to a priori estimate the error induced by this reduction. This method helps choosing the most ...
Simplified converters models for the analysis and simulation of large transmission systems using 100% power electronics COSSART, Quentin; COLAS, Frédéric; KESTELYN, Xavier (2018)In this paper, a model order reduction method is proposed, to simplify power electronics converters and allow simulating large transmission systems using 100% power electronics. Unlike existing methods it keeps the system's ...
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