Small-Signal Stability Modelling and Optimization of Microgrids

Simon Eberlein

Band 32: Schriftenreihe des Instituts für Energieübertragung und Hochspannungstechnik

Industrie & Technik

Paperback

248 Seiten

ISBN-13: 9783754338674

Verlag: Books on Demand

Erscheinungsdatum: 31.08.2021

Sprache: Englisch

Schlagworte: stability, Power systems, Microgrids, modeling, Converter

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The stability of power systems and microgrids is compromised by the increasing penetration with power electronic devices, such as wind turbines, photovoltaics and batteries. A simulation and optimization environment for such low-inertia systems is created. It is investigated how accurate the models need to be to capture the prevailing modes. An evolutionary algorithm tailored to optimization problems with computationally intensive fitness evaluation is proposed in order to optimized the controller parameters of grid-forming and grid-supporting distributed generators. It becomes apparent that microgrids dominated by grid-forming inverters are very stable systems when well-designed and optimized controllers are used. Model simplifications, such as the neglect of inner control loops of inverters, must be examined carefully, as they can lead to an inaccurate stability assessment.

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BoD • Books on Demand GmbH, In de Tarpen 42, 22848 Norderstedt, bod@bod.de

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