FPGA-in-the-Loop Implementation of Direct Power Control Based on PI Controller for Doubly-Fed Induction Generators

This new paper presents an implemented control to regulate the active and reactive power of a Doubly Fed Induction Generator (DFIG) used for wind energy power. The suggested method is based on Direct Power Control (DPC) with Proportional-Integral (PI) controllers. Compared to older DPC techniques, this approach solves many issues. Classical DPC methods often suffer from unstable switching frequency, large current and power fluctuations, and the need for extra parts like hysteresis comparators. The proposed method replaces these with PI controllers and adds Pulse Width Modulation (PWM), which keeps switching steady and improves power quality. To test the method, the system was first modeled in MATLAB/Simulink under different wind conditions. Then, the control was converted into code and implemented on an FPGA board. This board is affordable and supports real-time operation. Final tests confirmed that the controller performs well. It tracks power commands fast, with low delay and small overshoot. These results show that the method is reliable and ready for use in real wind farms. It meets industry standards and helps reduce system costs.