An augmented automatic choosing control of formal linearization filter type by ABC algorithm and its application to electric power systems

This paper is concerned with a single nonlinear feedback control for nonlinear systems with noisy measurement. A given nonlinear system is linearized piecewise so as to be able to design the linear optimal controllers, whose states are estimated by a formal linearization filter. By the automatic choosing function, these controllers are smoothly united into a single nonlinear feedback controller, which is called an augmented automatic choosing control of a formal linearization filter type. Since the formula of the proposed control is of a structure-specified type, the design parameters included in the controller and filter are appropriately determined using artificial bee colony algorithm. Simulation results show that the new controller enables to improve the stability of electric power systems well.