Feedback Linearization Direct Power Control of Brushless Doubly‐Fed Induction Generator Based on LESO

This paper presents a feedback‐linearized direct power control strategy based on the Linear Extended State Observer (LESO) to address the issues of strong coupling and complexity of the Brushless Doubly‐Fed Induction Generator (BDFIG) model. Initially, a direct power control model based on the d‐q rotating coordinate system is developed by analyzing the relationship between the voltage on the stator control winding side and the active and reactive power on the stator power winding side. Feedback linearization is then applied to decouple the strong coupling terms, resulting in a linearized model. Due to the potential impact of unmodeled system components and uncertainties on the control performance, the LESO is employed to estimate these factors and adjust the control inputs accordingly. The accuracy of the derived model and the effectiveness of the proposed control strategy are validated through simulation and hardware‐in‐the‐loop (HIL) experiments.