Application of unscented transform in frequency control of a complex power system using noisy PMU data

This paper presents a novel unscented transform (UT)-based quasi-decentralized load frequency control scheme for power systems. The designed load frequency controllers are decoupled from each other, and can cope with noisy and discrete phasor measurement unit data. The proposed UT-based scheme is applied to a complex nonlinear power system. Furthermore, the design and analysis of the proposed controllers are based on considering the entire network topology. © 2005-2012 IEEE.