Abstract
The purpose of this research is to design a controller of a continuously variable planetary transmission(CVP). The controller can adjust the gear ratio based on wind speeds and the rotational speed of a flywheel. With this controller, the flywheel can rapidly reach the rotational speed which is suitable for compressing the air into a tank. Also, a wind turbine can be operated at the best efficiency point with this controller. Therefore, the efficiency of transforming wind energy into compressed air improves. Structure of pneumatic storage system with the turbine as well as the flywheel and how each part functions will be introduced. How the wind energy transforms into the compressed air in the system will also be illustrated. The process of designing the controller is followed in the research. A mechanical controller is a priority to design, and the efficiency and the availability are analyzed after the design of mechanical controller. If the result is not as good as estimated, the design of an electronic one will be adopted. After the design of the controller is finished, an efficiency comparison will be proceeded as a reference to improve. The two systems compared are one which punches the air directly driven by the turbine and another, we design, which punches the air by the energy stored in the flywheel.