Speed Control of Separately Excited D.C. Motor using Self-Tuned Parameters of PID Controller

Abstract

This paper presents a simulation and hardware implementation of a closed loop
control of a separately excited D.C. motor using a self-tuning PID controller. The PID
controller design is based on using the Field Programmable Analog Array (FPAA)
technology. Parameters tuning of the PID controller is achieved by using the genetic
algorithm (GA). The FPAA controller based technology gives the advantage of low
power, no quantization noise, high bandwidth and high speed response. The practical
results show that a self-tuning controller can outperform a hand-tuned solution and
demonstrate adaptability to plant drift; also it gives very acceptable results in the
reduction of overshoot, stability time and the steady-state transient response of the
controlled plant.