Decentralized load frequency control in a deregulated environment using disturbance accommodation control theory

In this paper, a decentralized controller is proposed for the load frequency control problem in a deregulated environment. The deregulation scenario considered here assumes that generating units in each area supply regulated power according to their energy contracts. Disturbance accommodating controllers (DAC) are designed which are decentralized controllers using frequency and tie-line power measurements only. Two examples are given to illustrate the proposed approach.