H/sub /spl infin// controller design for power system load frequency control

In this paper, an H/sub /spl infin// controller, based on the standard H/sub /spl infin// control design approach, is proposed for power system load-frequency control with system parametric uncertainties. The variation bounds of power system parameters are obtained by changing parameters by 30% to 50% simultaneously from their typical values. The proposed H/sub /spl infin// controller is effective and can ensure that the overall system is asymptotically stable for all admissible uncertainties. The simulation results show that for the example system the proposed H/sub /spl infin// load-frequency controller can achieve good performance even in the presence of generation rate constraint.<>