PID Control System Simulation with Complete Source Code and Model

This article presents a fully-documented PID control system simulation program with complete source code and model files for educational and research purposes. Beyond providing the core implementation, I will elaborate on the program's usage methodology, functional components, and underlying control principles. The simulation architecture employs standard PID algorithms with configurable proportional (Kp), integral (Ki), and derivative (Kd) gains, implemented through discrete-time difference equations for real-time performance. Key functions include parameter tuning interfaces, system response visualization, and stability analysis tools. Through this simulation environment, users can deepen their understanding of PID control mechanisms while customizing the codebase for specific applications. The modular design facilitates extensions such as anti-windup implementations, cascade control, or digital filter integrations. This resource aims to support both learning and advanced research in control systems engineering.