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Large-disturbance voltage stability of SG applying FGW TR4-models in distribution grids

: Salman, A.; Dallmer-Zerbe, K.; Singer, R.; Strasser, K.; Rogalla, S.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE International Energy Conference, ENERGYCON 2016 : 4-8 April 2016, Leuven
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-4673-8464-3 (Print)
ISBN: 978-1-4673-8463-6 (Online)
7 S.
International Energy Conference (ENERGYCON) <2016, Leuven>
Fraunhofer ISE ()
Leistungselektronik; Netze und Intelligente Systeme; Wechselrichter in Netzen

Increasing installation of renewable energy generators and increasing amount of small grid-connected generators, such as Combined Heat and Power (CHP) units influences large-disturbance voltage stability in distribution grids [1]. Due to this reason grid codes demand standardized simulation models. In Germany TR4-models are obligatory [2]. This publication focuses on the behavior of a synchronous generator (SG) during short-circuits. All presented TR4-models are validated according to low voltage ride through (LVRT) measurements in a laboratory environment. An improved model is presented that shows less deviation in comparison to standard model implementation. The improved model is applied within an exemplary distribution grid simulation.