PATTERN RECOGNITION ADAPTIVE CONTROLLER

摘要

A pattern recognition adaptive controller (20) configured to dynamically adjust proportional gain and integral time control parameters to minimize integrated absolute errors between a setpoint and a monitored controlled variable. The pattern recognition adaptive controller (20) receives a sampled signal representative of the controlled variable, and determines a smoothed signal based on the sampled signal. The controller (20) characterizes a disturbance in the smoothed signal by a damping factor and a closed loop response time. When a significant load disturbance or setpoint change occurs, the controller (20) estimates an optimal gain based on the damping factor, and an optimal integral time based on the response time. The estimated optimal gain and estimated optimal integral time are used to determining a new gain and a new integral time values, to which the control parameters of the controller (20) are then set.