Working with Time-Delay Systems in MATLAB®

This paper presents the functionality of Control System Toolbox in MATLAB regarding systems with time-delays. The toolbox allows the user to define their systems in different system representations and to make complex system interconnections. The user can analyze the overall system in time and frequency domains with different tools and design PID controllers satisfying design requirements. Various visualization tools are available for analysis and design verification. This paper aims to introduce these functionalities to researchers and engineers and to discuss the open directions in computer algorithms for control system design.