Sail Generator Feasibility Study

In this paper, the authors propose a new small size vertical axis wind power generation system for operating in standalone mode at low speed under weak wind conditions. The proposed system consists of a sail turbine and an outer zipper rotor generator. The sail turbine is designed so that it can catch energy from weak wind and also can protect itself from damage under strong wind. The generator is designed for standalone operation without brush and gear. The feasibility study of the proposed generation system is conducted using Fourier expansion. Analytical results show that the target output can be achieved.