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Performance of df/dt-based Inertia Control during Emergency Islanding

 
: Duckwitz, Daniel

:
Fulltext urn:nbn:de:0011-n-4213170 (664 KByte PDF)
MD5 Fingerprint: d8e9972ef5b92d32b718b2c893e3cdf7
Created on: 16.11.2016


Betancourt, U. ; Energynautics GmbH, Darmstadt:
15th Wind Integration Workshop 2016 : International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants; 15-17 November 2016, Vienna, Austria; Proceedings
Darmstadt: Energynautics GmbH, 2016
ISBN: 978-3-9816549-4-3
5 pp.
Wind Integration Workshop (WIW) <15, 2016, Vienna>
International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants <15, 2016, Vienna>
Bundesministerium für Wirtschaft und Technologie BMWi
Stromnetze Initiative; 0325796A; Transstabil-EE
Bundesministerium für Wirtschaft und Technologie BMWi
0325585A; DEA-Stabil
English
Conference Paper, Electronic Publication
Fraunhofer IWES ()
inertia emulation; virtual inertia; frequency derivative; df/dt; emergency operation; frequency stability; voltage control

Abstract
In power systems with high penetration rates of inverter-based generation, the system inertia constant decreases. This causes an increased rate of change of frequency (ROCOF), e.g. after plant outages or fault-induced system splits, and may lead to frequency instability. Synthetic inertia schemes have been proposed to provide inertia with power electronic converters, especially in wind turbines due to the available energy storage. This paper focuses on the system split scenario, i.e. where a grid area is suddenly isolated from the bulk power system. This scenario is investigated for three cases: i.) a conventional synchronous generation mix, ii.) a high share of power converters without synthetic inertia, and iii.) a high share of power converters with df/dt inertia emulation. Potential violations of frequency and voltage limits are identified for each scenario, and the robustness is compared among the generation configurations. Load shedding and asynchronous motor loads influence the system behavior significantly and are therefore modeled explicitly.

: http://publica.fraunhofer.de/documents/N-421317.html