ADAPTIVE ANTI-WINDUP PROTECTION OF CASCADED INNER AND OUTER CONTROL LOOPS

摘要

A method of adaptive anti-windup protection for a control system (100) with cascaded inner and outer control loops (120, 140). The method includes receiving an inner loop feedback signal (126) indicative of the response of a control device (122) controlled by the inner control loop (120) and calculating an inner control loop request (124) such that, it would cause saturation of the control device (122) controlled by the inner control loop (120). The method also includes converting the calculated inner loop request (124) to outer loop anti-windup request limits using kinematic relationships and transmitting the outer loop anti-windup request limits to a controller (152) of the outer control loop (140). The method may also include applying the outer loop anti-windup request limits to the controller (152) of the outer control loop (140) to limit an inner loop request (124) generated thereby, and executing an outer control loop control law and an inner control loop control law subject to the anti-windup request limits.