从传动链效率角度浅谈风电场收益

摘要

风电机组从传动链角度划分为直驱型、双馈型、混合传动型以及异步全功率型，不同的传动链型式对应不同的传动效率。如果叶轮吸收的风能相同，那么不同的传动链型式会输出不同的功率曲线，从而影响风电场的收益。本文通过对比分析不同传动链的效率，结合实际风电场的经济评估，定量分析风电机组传动链对风电场收益的影响。%Wind turbine could be divided into the following categories by diferent types of drive chain:direct drive, double-fed, hybrid drive and asynchronous generator with full power converter. Diferent types of drive chain have diferent transmission efciencies. Assuming the rotor absorbed the same wind energy, diferent types of wind turbines could output diferent power curves due to diferent drive chains, thus afecting the proft of wind farms.Te efciencies of diferent transmission chains were compared and analyzed in this article, quantitatively analyzed the impact of the drive chain on the wind farm proft, combined with the actual economic assessment of wind farms.