Development of an Adaptive Control System with PID for Testing High Voltage Systems

Abstract

In this work, we present an approach for voltage control in systems used for testing high voltage electrical equipments. This approach consists of tuning a Proportional-Integral-Derivative (PID) controller using the reference model adaptive control (MRAC) method. The PID controller is tuned by a mechanism that optimizes the system output to converge to the reference model during the test. The tuning mechanism is a gradient-based method for real-time adaptation of PID controller parameters. This approach is necessary since each tested equipment presents a different dynamic characteristic. The results presented show that the proposed approach is applicable for real-time tuning of the PID controller when applied to high voltage electrical equipment testing devices.