A parameter optimization approach to controller partitioning for integrated flight/propulsion control application

The controller partitioning problem with the desired partitioning structure is stated. A criterion for matching the performance of the centralized controller by partitioned subcontrollers while meeting the constraints on the partitioning structure is described, and a cost function is related to this criterion. Analytical expressions for the derivatives of the cost function with respect to the state-space parameters of the partitioned subcontrollers are developed. A parameter optimization algorithm using these analytic gradients to minimize the cost is described. Application of the algorithm to integrated flight propulsion control system design using controller partitioning is discussed for a short take-off and landing aircraft in the short approach to landing task