Dispatching; Optimal Power Flow; Redispatching; Single-Machine Equivalent; Transient Stability
Abstract :
[en] This paper provides a methodology to restore transient stability. It relies on a well-behaved optimal power flow model with embedded transient stability constraints. The proposed methodology can be used for both dispatching and redispatching. In addition to power flow constraints and limits, the resulting optimal power flow model includes discrete time equations describing the time evolution of all machines in the system. Transient stability constraints are formulated by reducing the initial multi-machine model to a one-machine infinite-bus equivalent. This equivalent allows imposing angle bounds that ensure transient stability. The proposed optimal power flow model is tested and analyzed using an illustrative 9-bus system, the well-known New England 39-bus, 10-machine system and a real-world 1228-bus system with 292 synchronous machines.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Zarate-Minano, Rafael
Van Cutsem, Thierry ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Milano, Federico
Conejo, Antonio
Language :
English
Title :
Securing Transient Stability using Time-Domain Simulations within an Optimal Power Flow
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