CAJ | 학술논문

随着风电机组装机容量的迅速增加,电网对风电机组的电能品质提出了更高的要求,而功率波动是影响风电机组电能品质的一个重要问题。考虑到风电机组变桨控制中的桨距角和机组功率的非线性关系和外界扰动问题,为了减小风电机组功率波动,基于无模型自适应（MFA）控制理论设计了风电机组变桨无模型控制器,不依赖于风电机组精确的数学模型。为了验证无模型变桨控制器的性能,以3MW双馈风电机组为控制对象在Sinmulink中对该算法进行了仿真并和广泛应用的PID变桨控制器进行了对比。仿真结果表明无模型变桨控制器较好地解决了风电机组变桨控制中的非线性和外界扰动问题,风电机组输出的功率波动明显小于PID控制器。
수착풍전궤조장궤용량적신속증가,전망대풍전궤조적전능품질제출료경고적요구,이공솔파동시영향풍전궤조전능품질적일개중요문제。고필도풍전궤조변장공제중적장거각화궤조공솔적비선성관계화외계우동문제,위료감소풍전궤조공솔파동,기우무모형자괄응（MFA）공제이론설계료풍전궤조변장무모형공제기,불의뢰우풍전궤조정학적수학모형。위료험증무모형변장공제기적성능,이3MW쌍궤풍전궤조위공제대상재Sinmulink중대해산법진행료방진병화엄범응용적PID변장공제기진행료대비。방진결과표명무모형변장공제기교호지해결료풍전궤조변장공제중적비선성화외계우동문제,풍전궤조수출적공솔파동명현소우PID공제기。
With the rapid increasing of installed wind turbine capacity, higher requirements for wind turbine power quality were put forward by grid companies. Power fluctuation is an important issue for wind turbine power quality. In order to reduce the power fluctuations of the wind turbine, a kind of model-free pitch controller was designed considering nonlinear factor and disturbances in the wind turbine blade pitch control. The model-free controller was based on adaptive control theory and didn't depend on the precise mathematical model of the wind turbine. In order to validate the model pitch controller performance, the algorithm simulation was made in Sinmulink for the 3MW doubly-fed wind turbine control and compared with the PID pitch controller. The results verified the effectivity and priority of the MFA control.