作　　者： ; ;

机构地区： 汕头大学工学院能源研究所

出　　处： 《太阳能学报》 2003年第3期371-375,共5页

摘　　要： 讨论了水平轴风力机系统在状态空间模型条件下的参数辨识。首先 ,根据风力机机理并基于一定的假设条件 ,推导出风力机的机理模型 ,通过线性化得到系统在某一工况点附近的状态方程。其次 ,利用辨识实验测试系统的输入输出数据 ,采用预报误差法 ,得到系统多输入多输出的随机模型。最后 ,对所得到的随机模型进行了分析与检验 ,讨论了辨识模型与机理模型的优缺点 。 The parameter identification of a horizontal wind turbine system was presented. The theoretical models of the WECS were introduced in two different situations at the beginning. A state equation was built up with linearization around the operation point with some additional assumptions. Then, the parameters in the experimental models were obtained on the sampled data with an input and output. The prediction error method (PEM) was used as an identification algorithm. A MIMO identification technique was also adopted on the state equation. The advantage of this model is that the parameters have exact physical meaning. Above mentioned all of the models with advantages and disadvantages were discussed in detail.

关 键 词： 水平轴风力机 参数辨识 预报误差法 状态空间模型

领　　域： [动力工程及工程热物理]