Doubly-Fed Induction Generator Simulink Model Based on DQ-Axis Synchronous Rotating Reference Frame Mathematical Model

This paper presents a comprehensive Simulink model of a doubly-fed induction generator (DFIG) developed using the DQ-axis synchronous rotating reference frame mathematical framework. The implementation includes Park/Clarke transformations for coordinate conversion between three-phase stationary and synchronous rotating reference frames. Key subsystem blocks model stator/rotor circuit dynamics, mechanical torque inputs, and grid synchronization logic through phase-locked loop (PLL) algorithms. This model serves as a fundamental tool for power system generator control applications, enabling detailed analysis of DFIG operational principles and performance characteristics under varying grid conditions. Through parametric simulations and dynamic response testing, users can investigate voltage regulation capabilities, active/reactive power control mechanisms, and fault ride-through behaviors. The modular structure incorporates customizable PI controllers for rotor-side and grid-side converters, allowing tuning of control parameters for optimal performance. Simulation results facilitate deeper understanding of generator regulation mechanics in power systems, providing substantial theoretical foundations and experimental validation for future DFIG control optimization. The model architecture supports real-time parameter monitoring through scope blocks and data export capabilities for further offline analysis using MATLAB scripting.