Development of double pitchstall controlmechanism for micro-wind turbine specialized in strong wind region

在本研究中，我们研发了在任何强风范围(风速15m/S-25m/S)下可操作的大风区域专用型风力发电系统的超速预防控制机制。在此，我们开发了一种防止水平轴风力机过转的“风力机双桨距控制机构”空气制动系统，并进行了样机(3kw)的运行试验。通过现场试验证实，通过诱导失速和恢复失速现象，可以防止风力机过度旋转，并对其气动机理进行了分析。进而，运用动力系统理论和叶片元件理论，对失速控制行为进行了分析，同时剔除了控制机制的不足，设计了一种新的控制方法，验证了数值仿真的有效性。

In this study, we research and develop of overspeed prevention control mechanism operable strong wind region specialized type wind power generation system at any strong wind range (wind speed 15m/s-25m/s). Here, we developed a "double pitch control mechanism of the wind turbine" air brake system for preventing over-rotation of the horizontal axis wind turbine, and subjected to running test were made that demonstrated machine (3kw). It was confirmed by field tests that by inducing a stall and recovering such a phenomenon, excessive rotation of the wind turbine can be prevented, and analyzed aerodynamic-kinetic mechanism. Furthermore, dynamic systems theory and blade element theory, analyzes the stall control behavior, while washing out the disadvantages of the control mechanism, and designed a new control method, we show the effectiveness of the numerical simulation.