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Istvan Erlich
Researcher at University of Duisburg-Essen
Publications - 164
Citations - 6020
Istvan Erlich is an academic researcher from University of Duisburg-Essen. The author has contributed to research in topics: Electric power system & Wind power. The author has an hindex of 39, co-authored 164 publications receiving 5553 citations. Previous affiliations of Istvan Erlich include Imperial College London & University of Duisburg.
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Journal ArticleDOI
A Stochastic Model for the Optimal Operation of a Wind-Thermal Power System
TL;DR: In this paper, a stochastic cost model and a solution technique for optimal scheduling of the generators in a wind integrated power system considering the demand and wind generation uncertainties are presented for optimal day-ahead planning even with indeterminate information about the wind generation.
Journal ArticleDOI
Modeling of Wind Turbines Based on Doubly-Fed Induction Generators for Power System Stability Studies
TL;DR: In this paper, a reduced-order DFIG model is developed that restricts the calculation to the fundamental frequency component and allows the consideration of the alternating components of the rotor current as well, which is necessary for triggering the crowbar operation.
Journal ArticleDOI
Reactive Power Capability of Wind Turbines Based on Doubly Fed Induction Generators
TL;DR: In this article, the steady-state reactive power loading capability of DIF-based WTs with doubly fed induction generators (DFIGs) is discussed. And the active-reactive power diagram is systematically derived by considering the typical power-speed relationship and converter loading limits.
Proceedings ArticleDOI
Advanced grid requirements for the integration of wind turbines into the German transmission system
TL;DR: In this article, the main issues of the suggested requirements by highlighting major changes and extensions are discussed, including fault ride-through, grid voltage maintenance respective voltage control, system monitoring and protection as well as retrofitting of old units.
Proceedings ArticleDOI
Grid code requirements concerning connection and operation of wind turbines in Germany
Istvan Erlich,U. Bachmann +1 more
TL;DR: In this paper, the authors discuss issues of German grid codes relating to wind turbines and discuss the main requirements concern the fault ride-through capability of wind turbines, which is the main requirement of the grid codes.