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Modeling Combined Cycle Power Plants for Power System Restoration Studies

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6 Author(s)
Barsali, Stefano ; Dept. of Energy & Syst. Eng., Univ. of Pisa, Pisa, Italy ; De Marco, A. ; Giannuzzi, G.M. ; Mazzoldi, F.
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This paper presents a dynamical model for simulating combined cycle power plants to be used for assessing the plant behavior during large transients and for restoration procedures. The 80th dynamic order model considers the complex structure of the heat recovery steam generator and calculates the main variables that are critical during these transients. The model has the double purpose of studying both the plant behavior under the usual control systems as well as innovative logics and control strategies for increasing its performances in terms of regulation and emergency services. The possible use of combined cycle power plants for supplying a restoration area is finally investigated adopting different control strategies that also involve the regulating capacity of the steam turbine.

Published in:

Energy Conversion, IEEE Transactions on  (Volume:27 ,  Issue: 2 )