Modern wind power generation systems consist of three main components: the wind turbine, transmission system (gearbox), and generator along with its energy distribution mechanisms. All three components are equally important and must meet design requirements to build a high-performance wind power generation system. However, many people mistakenly believe that the key point of this system is solely focused on the huge windmills, which is not the case. This article aims to elucidate the functions and design considerations associated with these three key components, providing valuable insights for the development of wind power generation systems, particularly within the context of Kid-Wind competition.