Observer-based techniques in ripple correlation control applied to power electronic systems

Ripple correlation control is a general optimization method for use with power electronic interfaced systems. The method relies on gradient information extracted from the ripple associated with these systems. The variable to be optimized and the variable that the optimization is being performed with respect to, must both be available to the controller. This paper discusses ways of dealing with the difficulties that arise when these signals cannot be measured due to dynamics within the system.