基于额定风速以下的风力发电机扭矩控制

Wind Turbine Torque Control Based on Below Rated Wind Speed

对风力发电机组控制方法进行了阐述,基于PI控制理论,建立PI扭矩控制器,并基于该控制方法展开研究。对扭矩控制策略进行了分析,研究了扭矩控制的过程,并且在控制策略里考虑了传动链、塔架和滤波器等因素,计算了PI增益随风速变化而变化的数值。对有无加控制策略的载荷进行了对比,结果表明:PI控制方法降低了关键零部件的载荷,满足控制策略设计的要求。

The method of the wind turbine control was expounded, and based on the PI control theory, the PI torque controller was established, and some research was done based on the control method. The torque control strategy was analyzed, and the process of the torque control was researched. Moreover in considering the element such as transmission chain, tower and filter, and etc., the val- ues of the change of PI gain was calculated along with wind speed changing. Compared the load whether the control strategy was exer- ted, the results show that the PI control method reduces the load of the key components, which meets the requirements of the control strategy design.