Abstract

A novel decentralized dynamic output feedback controller is presented to deal with the transient stability of a class of multimachine power systems. The proposed decentralized control strategy employs local sliding mode observers to estimate the states of each machine, and the feedback gain matrix of each local controller is obtained by solving two linear matrix inequalities. In addition, local sliding mode observers are capable of reconstructing unknown interconnections between machines. The effectiveness of the proposed control strategy is illustrated by simulation of a three-machine power system.

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