International Federation of Automatic Control
3rd IFAC SYMPOSIUM on SYSTEM, STRUCTURE and CONTROL

Foz do Iguassu, Brazil October 17th - 19th, 2007


Wednesday Evening

Session WE3: Control Applications on Electrical Systems


Chair: Romeu Reginatto - Brazil
Co-chair: Alvaro Giusto - Uruguay
Room: Santiago
2007-10-17
From 16:00 to 18:00
Nested Integral Sliding Mode Control of Multimachine Power Systems
H. Huerta-Avila; A. G. Loukianov; J. M. Cañedo
Contact: Héctor Huerta-Avila - Mexico
16:40-17:00
Abstract:
A sliding mode decentralized excitation controller for multimachine power system is designed to stabilize the speed and regulate the terminal generators voltages. First, the block control approach is used to derive a nonlinear sliding manifold, on which the mechanical dynamics are linearized. Then, a combination of the integral and nested sliding mode techniques is applied to reject both the matched and unmatched perturbations. To implement the controller, the only local state information is required. The designed controller was tested through simulation of WSCC under small and large perturbations. The presented simulations confirm effectiveness of the proposed control-ler. Copyright © 2007 IFAC.