Performance Analysis of Vector Control of Brushless Doubly-Fed Machine in Double Synchronous Reference Frame

Brushless doubly-fed machine (BDFM) has been widely concerned due to its obvious cost advantage. Firstly, the mathematical model of BDFM in the double synchronous coordinate system is presented. Based on the model, the vector control strategy proposed in this paper is derived. Then, according to the static equation of the BDFM in the double synchronous coordinate system, the load characteristic expression is derived. Finally, the correctness of the theoretical analysis and the effectiveness of the control strategy are verified by simulation.