基于塔架载荷灵敏度的风电场有功功率分配方法研究

Research on active power distribution method of wind farm based on tower load sensitivi-ty

为了提高风电机组及其关键部件的使用寿命,文章提出了一种基于塔架载荷灵敏度的风电场有功功率分配方法。以风电机组塔架疲劳载荷最小化为优化目标,跟踪风电场总功率目标为约束条件,基于塔架弯矩疲劳载荷灵敏度建立了有功功率控制优化模型。基于优化模型,应用二次规划算法计算出每台风电机组的功率参考值,通过分析风速波动对塔架载荷的影响,优化分配风电场有功功率。仿真结果表明,该有功功率分配方法能够完成风电场总功率的跟踪,同时降低了风电机组塔架疲劳载荷。

In order to improve the service life of wind turbine and its key components,a wind farm active power distribution method based on tower load sensitivity is proposed.Taking minimizing the fatigue load of wind turbine tower as the optimization objective and tracking the total power target of wind farm as the constraint condition,an active power control optimization model is established based on the fatigue load sensitivity of tower moment.Based on the optimization model,the power reference value of each typhoon generator unit is calculated by quadratic programming algorithm.By analyzing the influence of wind speed fluctuation on tower load,the active power of wind farm is optimized.The simulation results show that the proposed active power distribution method can track the total power of the wind farm and reduce the fatigue load of the wind turbine tower.