Download or read book A Parameter Optimization Approach to Controller Partitioning for Integrated Flight Propulsion Control Application written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-10-21 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A parameter optimization framework is presented to solve the problem of partitioning a centralized controller into a decentralized hierarchical structure suitable for integrated flight/propulsion control implementation. The controller partitioning problem is briefly discussed and a cost function to be minimized is formulated, such that the resulting 'optimal' partitioned subsystem controllers will closely match the performance (including robustness) properties of the closed-loop system with the centralized controller while maintaining the desired controller partitioning structure. The cost function is written in terms of parameters in a state-space representation of the partitioned sub-controllers. Analytical expressions are obtained for the gradient of this cost function with respect to parameters, and an optimization algorithm is developed using modern computer-aided control design and analysis software. The capabilities of the algorithm are demonstrated by application to partitioned integrated flight/propulsion control design for a modern fighter aircraft in the short approach to landing task. The partitioning optimization is shown to lead to reduced-order subcontrollers that match the closed-loop command tracking and decoupling performance achieved by a high-order centralized controller. Schmidt, Phillip and Garg, Sanjay and Holowecky, Brian Glenn Research Center RTOP 505-62-50...
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