Power Generation and Energy Storage Integrated System based on OW-PMSG

Aiming at solving the problems that the wind power generation system can hardly generate power at low speed and the power generation is volatile and intermittent, an integrated topology of power generation and energy storage based on open-winding permanent magnet synchronous generator (OW-PMSG) is proposed. Firstly, the control principle is introduced. According to the structural characteristics of the double-ended power supply of the open-end winding motor, the flow direction of the energy in the control system can be flexibly controlled by an efficient control strategy. Under the support of the energy storage, the stable operation of the system can still be ensured under the condition of low wind speed, and the combination of the power outer loop and voltage inner loop can guarantee stable power transmitted to the grid. The effectiveness of the proposed scheme is verified through simulation.