Novel Hierarchical Modular Control Methodology for Closed-Loop-Flow Control Applications

Distributed Mechanical Actuators for Design of a Closed-Loop Flow-Control System

“…An innovative modular hierarchical control architecture for implementing an active flow-control system onto aircraft flight control was recently reported by Patel et al 2 The control architecture is classified into two levels; 1) a local, minor loop feedback controller, composed of Intelligent Control Modules (ICMs) that control the amount of lift created by a discrete airfoil section, and 2) a coordinating, major feedback loop controller, composed of a Global Control System (GCS) that provides coordination of ICMs in order to modulate the net pitch and roll moments created by an entire airfoil. Each individual ICM is a distinct control unit with dynamic pressure sensors, one of more actuator pairs, and a controller to regulate the lift generation of the corresponding aerostructure section.…”