UPFC and STATCOM Modeling and Simulation in MATLAB/Simulink

Modeling and simulation of UPFC (Unified Power Flow Controller) and STATCOM (Static Synchronous Compensator) in MATLAB/Simulink for power system applications. UPFC and STATCOM are key Flexible AC Transmission System (FACTS) devices widely used in modern power systems. UPFC provides comprehensive control capabilities by regulating voltage, reactive power, and active power flow simultaneously, while STATCOM primarily focuses on voltage stability and reactive power compensation. In MATLAB/Simulink, engineers can develop detailed models of these devices using Power Systems Toolbox components. The implementation typically involves: - Voltage Source Converters (VSCs) with PWM control techniques - Phase-Locked Loop (PLL) circuits for synchronization - Proportional-Integral (PI) controllers for voltage and power regulation - Measurement blocks for monitoring system parameters The simulation allows for comprehensive analysis of power system dynamics, including: - Transient stability studies during fault conditions - Voltage profile improvement under varying load conditions - Power flow control optimization - System damping enhancement for oscillations Key MATLAB functions employed include power_analyze for system performance evaluation and sim for running dynamic simulations. The models enable researchers to validate control strategies, assess device performance under different operating scenarios, and optimize power system operation through parameter tuning and controller design. This approach provides an effective platform for evaluating UPFC and STATCOM performance in power systems, facilitating better system planning and operation optimization.