CAJ | 학술논문

提出一种基于定子电流定向的永磁同步风力发电机复合矢量控制策略.该策略在发电机切入速度与转折速度间采用最大转矩电流比控制方式,以提高系统的发电功率:在转折速度与极限速度间采用最大功率输出的弱磁控制方式,提高系统的稳定性.根据兆瓦级PMSG需采用无速度传感器的技术特点,在模型参考自适应方法基础上,提出一种基于定子电压锁相、定子电流位置定向调节的无速度传感器方法,并将其应用到所提控制策略中.最后通过实验样机验证了该方案的正确性和可行性.
제출일충기우정자전류정향적영자동보풍력발전궤복합시량공제책략.해책략재발전궤절입속도여전절속도간채용최대전구전류비공제방식,이제고계통적발전공솔:재전절속도여겁한속도간채용최대공솔수출적약자공제방식,제고계통적은정성.근거조와급PMSG수채용무속도전감기적기술특점,재모형삼고자괄응방법기출상,제출일충기우정자전압쇄상、정자전류위치정향조절적무속도전감기방법,병장기응용도소제공제책략중.최후통과실험양궤험증료해방안적정학성화가행성.
According to the characteristics of permanent magnet synchronous generator(PMSG),a complex vector control scheme is proposed by using the maximum ratio of torque & current control and reducing flux control.Based on mode roference adaptive system(MARS)and phase-locked,a sensorless control method is also proposed by using the dynamics stator current position controller.With the method,the complex vector control rotating cording system is established.Simulation results indicate the feasibility of the method.Experiments on a lab prototype platform also validate the correction of the complex vector scheme and the sensorless method.