Energiewende in der Stromversorgung – Systemstabilität und Systemsicherheit
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Operational Behavior of the Virtual Synchronous Machine

Conference: Energiewende in der Stromversorgung – Systemstabilität und Systemsicherheit - 12. ETG/GMA-Tagung „Netzregelung und Systemführung“
09/26/2017 - 09/27/2017 at Berlin, Deutschland

Proceedings: Energiewende in der Stromversorgung – Systemstabilität und Systemsicherheit

Pages: 6Language: englishTyp: PDF

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Authors:
Duckwitz, Daniel; Welck, Friedrich; Glöckler, Christoph (Fraunhofer IWES, Kassel, Germany)

Abstract:
High shares of power electronic inverters reduce system inertia which threatens frequency stability. New control schemes for inverters are required. Virtual synchronous machines (VSM) replicate the inertia and inherent voltage support of synchronous machines. High short-circuit currents however increase hardware cost. An extended VSM model and a strategy to reduce short-circuit currents while maintaining stability is presented. System studies and experiments demonstrate that VSM ensure stability in the system split scenario.