风电机组叶片加装涡流发生器提升发电能力试验研究

The experimental research on improving power generation capacity of wind turbine blade with vortex generator

涡流发生器是风电机组中控制流动分离的一种有效方式。以目标风场的具体空气密度、风况等作为主要输入,对拟加装的涡流发生器的形状和安装位置进行模拟仿真,获得理论最优解,仿真计算发电量可提升1%。涡流发生器在风电场进行现场安装试验,对运行整1年的运行数据进行分析,分别对加装涡流发生器的机组和相邻对照组从实际发电量、实际功率曲线估算应发电量等方面评估发电量增益情况。结果表明:在年平均风速为5.06 m/s时,通过加装涡流发生器,发电量提升约为1%,与前期仿真计算值相符合;此外,由于湍流、偏航误差等的存在,加装涡流发生器后,功率值提升的风速范围较理论值有所拓宽。

Vortex generator of the wind turbine is an effective way to control the flow separating. Taking the specific air density and wind condition of the target wind field as the main input, the shape and the installation position of vortex generator simulation to be installed were simulated, the theoretical optimal solution is obtained,and the power generation can be increased by 1% by simulation calculation. By field testing, operation data of each unit for one year was analyzed, assess the power generation increase comparing VG units with adjacent units from the aspects of actual generation capacity, estimation of generating capacity based on actual power curve. The results show that while the average annual wind speed is 5.06 m/s, the increase rate of power generation is about 1.00% by adding VG, which is consistent with the previous simulation calculation. In addition, due to the existence of turbulence and yaw errors, the range of wind speed which the power increased by adding VG is wider than the theory.