Title :
Analysis of Hydro-Coupled Power Plants and Design of Robust Control to Damp Oscillatory Modes
Author :
Villegas Pico, Hugo N. ; Aliprantis, Dionysios C. ; McCalley, James D. ; Elia, Nicola ; Castrillon, Neby J.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
This paper presents an investigation of hydro power plants with pelton-type turbine-generator sets that are coupled hydraulically and electrically. In particular, the dynamic behavior and speed performance of this type of power plants at black-start is analyzed using singular value decomposition (SVD) and relative gain array (RGA). Following, robust control theory is used to design a hydro-stabilizer that improves the performance of coupled turbines while accounting for typical uncertainties in actuators.
Keywords :
hydroelectric power stations; power generation control; power system stability; robust control; RGA; SVD; damp oscillatory modes; hydro-coupled power plants; hydro-stabilizer; pelton-type turbine-generator sets; power plants; relative gain array; robust control design; robust control theory; singular value decomposition; Hydraulic turbines; Oscillators; Power system dynamics; Uncertainty; Vectors; Dynamics; frequency control; frequency stability; hydroelectric power generation;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2014.2333002
