Control of systems with deadzones using PD controllers with fuzzy precompensation

Abstract

A fuzzy logic-based precompensation approach for controlling systems with deadzones is proposed. The control structure consists of a fuzzy logic-based precompensator followed by a conventional proportional derivative (PD) controller. The authors' proposed control scheme shows superior transient and steady-state performance compared to conventional PD and proportional integral derivative (PID) controllers. The scheme is robust to variations in deadzone nonlinearities, as well as the steady-state gain of the plant. The effectiveness of the scheme is illustrated using computer simulation examples.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>