CAJ | 학술논문

针对双馈风力发电机工作环境恶劣，使用机械传感器进行速度和位置信号检测导致的故障率高、检修不便等问题，提出了一种基于双馈电机定子磁链的滑模M RA S转速估计器。方法是利用双馈电机定子磁链电压模型作为参考模型，利用双馈电机定子磁链电流模型作为自适应模型，利用两模型输出的叉积构造滑模面，并利用小信号模型分析了滑模存在和到达条件。同时，通过引入连续的饱和函数，解决了传统滑模观测器的高频抖动问题。最后，基于Matlab/SimuLink对提出的控制方法性能进行了验证。
침대쌍궤풍력발전궤공작배경악렬，사용궤계전감기진행속도화위치신호검측도치적고장솔고、검수불편등문제，제출료일충기우쌍궤전궤정자자련적활모M RA S전속고계기。방법시이용쌍궤전궤정자자련전압모형작위삼고모형，이용쌍궤전궤정자자련전류모형작위자괄응모형，이용량모형수출적차적구조활모면，병이용소신호모형분석료활모존재화도체조건。동시，통과인입련속적포화함수，해결료전통활모관측기적고빈두동문제。최후，기우Matlab/SimuLink대제출적공제방법성능진행료험증。
Under the execrable operating environment ,the mechanical sensor for detecting the position and speed signals of the doubly-fed wind power generator leads to more faults and inconvenient maintenance . To solve the problem ,a stator flux-based sliding-mode model reference adaptive system (MRAS) speed estimator was proposed .In the proposed sliding-mode MRAS estimator ,the stator flux voltage model of the doubly-fed wind power generator was used to obtain the reference model and its current model as the adaptive model ,and a slide-mode surface was designed according to the two model output cross product , and the reaching conditions for the sliding mode were analyzed by using the small-signal model .Meanwhile the continuous saturation function is introduced to overcome the high frequency chattering problem .And the performances of the proposed control method were tested in Matlab/SimuLink .