This talk is partially based on the IEEE Proc.  paper, Nov 2005
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Possible ways of adapting   primary controllers
•More adaptive decentralized controllers (various nonlinear high-gain controllers—sliding mode control; feedback-linearizing control (FBLC); observation decoupled state space combined with FBLC logic)
•A combination of coordinating signals and change of logic (coordinating signals identifying when the system response is qualitatively different and it requires change in control logic in order to stabilize dynamics)
•NONE OF THE CURRENTLY IMPLEMENTED CONTROLLERS ARE CURRENTLY AFDAPTIVE except the multi-modal Hydro-Quebec  PSS)
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