MATLAB Simulation of STATCOM Using Hysteresis Control Technique

This document presents the MATLAB simulation of a Static Synchronous Compensator (STATCOM) utilizing Hysteresis Control Technique. STATCOM is a power-electronic device used in power systems to provide reactive power compensation and improve power quality. The Hysteresis Control Technique implements a feedback control strategy with predefined upper and lower tolerance bands, enabling fast and accurate regulation of reactive power output through switch-state adjustments. In this simulation, the hysteresis controller is programmed using MATLAB's Simulink environment with logical comparators and switching logic blocks to maintain current references within specified bounds. The implementation includes voltage source converter modeling, phase-locked loop (PLL) synchronization, and DC-link voltage control components. Performance evaluation under different load conditions demonstrates dynamic response characteristics and harmonic suppression capabilities. Simulation results provide insights for optimizing STATCOM design parameters, including hysteresis band width selection and switching frequency management for real-power system applications.