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On simplified handling of state events in time-domain simulation
Fabozzi, Davide; Chieh, Angela S.; Panciatici, Patrick et al.
2011In Proceedings of the 17th PSCC
Peer reviewed
 

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Keywords :
hybrid systems; differential-algebraic equations; stiff-decay methods; simplified simulation; long-term dynamics
Abstract :
[en] The power system models typically used in dynamic simulations involve discrete events in addition to the standard differential-algebraic equations. Those events cause the system to jump from one continuous behavior to another. Solvers have to handle those jumps. This paper focuses on simplified time simulation where large steps are used in conjunction with stiff-decay integration methods to obtain approximate solutions in short computing times. In the proposed simulation scheme, the simulation time steps are not synchronized with the system jumps, which are treated a posteriori in a corrective step. In this context, the paper analyzes several simple nonlinear models involving limiters, switches, minimum gates, etc. from which some precautions to be taken at the modelling and solving stages are stressed. The paper also reports on results obtained with a representative power system model.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Fabozzi, Davide ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Chieh, Angela S.
Panciatici, Patrick
Van Cutsem, Thierry  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
On simplified handling of state events in time-domain simulation
Publication date :
August 2011
Event name :
17th Power System Computation Conference
Event organizer :
KTH
Event place :
Stockholm, Sweden
Event date :
du 22 août 2011 au 26 août 2011
Audience :
International
Main work title :
Proceedings of the 17th PSCC
Peer reviewed :
Peer reviewed
European Projects :
FP7 - 211407 - PEGASE - Pan European Grid Advanced Simulation and state Estimation
Name of the research project :
PEGASE
Funders :
UE - Union Européenne [BE]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
CE - Commission Européenne [BE]
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since 25 May 2011

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