Dynamical Behavior Comparison Between Variable Speed and Synchronous Machines With PSS

The dynamic performances of variable speed and fixed speed units are compared in the case of 2 × 320 MW pumped storage power plant. The case study of the pumped storage power plant with standard synchronous machine with PSS is presented and, then, the corresponding variable speed system is designed...

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Bibliographic Details
Published in:IEEE transactions on power systems 2010-08, Vol.25 (3), p.1555-1565
Main Authors: Padoan, Antonio C, Kawkabani, Basile, Schwery, Alexander, Ramirez, Carlos, Nicolet, Christophe, Simond, Jean-Jacques, Avellan, François
Format: Article
Language:English
Subjects:
Cavitation vortex rope
Chemical technology
Damping
Dynamical systems
Dynamics
Electric power generation
Electric power plants
Energy exchange
Frequency
hydroelectric power station
Oscillations
Power generation
Power system dynamics
Power system stability
power system stabilizer
pumped-storage
Pumps
Synchronous machines
Torque
Variable speed
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Description
Summary:The dynamic performances of variable speed and fixed speed units are compared in the case of 2 × 320 MW pumped storage power plant. The case study of the pumped storage power plant with standard synchronous machine with PSS is presented and, then, the corresponding variable speed system is designed for this case. Unsteady numerical simulations of both architectures enable to demonstrate that the variable speed architecture improves the power system stability characteristics for both the local and the inter-area modes of oscillation. Moreover, the damping of active power oscillations originated by the part load operation of the pump-turbine in generating mode is investigated as well.
ISSN:0885-8950
1558-0679
DOI:10.1109/TPWRS.2009.2039586