A Vector Control Strategy for Dual Stator-Winding Induction Generator with Feedforward Current Compensation

In the fields of wind power generation, ship shaft power generation, pipeline residual pressure power generation and flywheel energy storage, generators are needed to realize the conversion of mechanical energy to electrical energy. The difference between the dual stator-winding induction generator (DWIG) in this paper and the traditional induction generator studied is that the stator side is composed of two sets of windings, the power winding and the control winding, and the magnetic field of the motor rotor can be adjusted by the control winding. The dynamic performance of DWIG with the conventional control strategies is poor under speed and load disturbance. This paper presents a vector control of power winding flux orientation with feedforward compensation. Comparative experiments are carried out by using the traditional control strategy and the control strategy proposed in this paper, and the results verify the dynamic performance of the proposed control strategy is better under the speed or load disturbance.