Simulation of Vector Modulation Method for Doubly-Fed Induction Machines

This simulation implements the vector modulation method for doubly-fed induction machines (DFIM) using MATLAB software. The simulation was developed by writing custom MATLAB scripts that model the vector control algorithm, which typically includes coordinate transformation modules, PWM signal generation, and rotor-side converter control logic. The simulation employs Clarke and Park transformations to convert three-phase quantities into dq-reference frame components, enabling decoupled control of active and reactive power. The core algorithm implements vector modulation techniques such as space vector PWM (SVPWM) to generate appropriate switching signals for the power converters. Through parameter tuning capabilities in the code, users can adjust key variables like switching frequency, DC link voltage, and machine parameters to observe different operational characteristics. The simulation includes performance evaluation modules that calculate metrics such as torque ripple, current harmonic distortion, and dynamic response under varying load conditions. This simulation framework provides valuable insights into DFIM vector modulation principles and their practical implementation effects. The results contribute to further research and improvement of DFIM control strategies, ultimately enhancing machine efficiency and performance in renewable energy applications like wind power generation systems.