Interactive Software Tool for Design of Higher Derivative Degree PID Controllers

Abstract

A new class recently developed controllers extends the family of PID regulators by several new features. The aim of this contribution is to present an interactive software tool for computer support of these controllers among researchers, students and broader research community by providing them with a graphical interface enabling to interact with the controllers and choose their tuning that best fulfils specified requirements. The main advantage of the new controllers, which cover the gap between traditional and fractional-order PID controllers, is that the more consistent solution to the noise filtering problem makes possible work with higher order derivatives and achieving broader spectrum of performance specifications. The paper briefly summarizes in a general way the design of PID controllers with higher derivative degree, noise attenuation and compensation of time delays. Based on this summary and further references the developed software tool is being described that takes the form of a virtual laboratory. The back-end of the tool relies on Matlab simulations, when it provides data of setpoint and disturbance step responses in the chosen loop, where the controlled system is represented by the first order time-delayed system distorted by a noise. The output data of Matlab simulations are processed with the front-end part of the software tool that uses possibilities of JavaScript programming language to interact with the control system and graphically visualize the results in different views within the Web browser environment.