Implementation of an (ACE)over-bar1 decomposition method

Having established feasibility and developed a method to decompose control area's (ACE(1)) over bar into components attributable to load changes in subareas within the control area, this paper addresses some of the practical issues with an on-line implementation of the (ACE(1)) over bar model and the decomposition method. Issues examined here include time-varying system conditions, nonlinearities in the governors' dead bands and AGC loop, and the impact of load disturbance external to the control area. An on-line recursive parameter estimation technique with adjustable forgetting factor to update the (ACE(1)) over bar model parameters is proposed.