Development of converter configuration and corresponding control strategy for wind turbines using permanent magnet synchronous generator: A Case study

Authors : Van Dai LE

Pages : 484-502

Doi:10.30521/jes.1025810

View : 9 | Download : 9

Publication Date : 2022-12-31

Article Type : Research Paper

Abstract :This study aims to investigate a feasible converter architecture and corresponding control method for Wind Turbine insert ignore into journalissuearticles values(WT); systems using permanent magnet synchronous generators insert ignore into journalissuearticles values(PMSG);. The converter configuration is designed based on the AC/DC/AC converter, including the Diode Bridge Rectifier insert ignore into journalissuearticles values(DBR); and Pulse Width Modulated Current Source Inverter insert ignore into journalissuearticles values(PWM-CSI);, Buck-Boost Converter insert ignore into journalissuearticles values(BBC);, and Bypass Chopper insert ignore into journalissuearticles values(BC);. The control strategy for the proposed converter is developed to enhance the operating performance of WT-PMSG, which must satisfy four requisitions. Firstly, it proposes the control approach for the pitch angle to control the output power of the WT when the wind speed is over the rated value. The selected control variables are the generator speed and active power. Secondly, the Maximum Power Point Tracking insert ignore into journalissuearticles values(MPPT); is archived to the satisfaction of the full-range operation through the control strategy for the BBC. The control strategy is applied by the Proportional Integral insert ignore into journalissuearticles values(PI); controller. The control variables are the generator speed and the diode rectifier\`s output DC current. Thirdly, the control strategy for PWM-CSI controls the voltage at the connection point and the frequency of the inverter. Fourthly, the DC-link voltage is controlled to the constant value at various operating conditions. Simulation of a 3MW and 0.69 kV WT-PMSG was carried on in PSCAD software to verify under considering the variable wind speed and the three-phase fault. The obtained results prove the feasibility of the proposed WT-PMSG system that serves as an alternative for a high-power wind energy conversion system.
Keywords : AC DC AC converter, Electric generator, Permanent magnet synchronous generator, Wind energy conversion system, Wind turbine