A mono-hull type VLMOS for wind power plant

The National Institute for Environmental Studies Japan proposed a twin-hull type concept of floating wind power plant, which has no mooring system but moves with sails and thrusters. The mobility of the structure is a key of this concept and the maneuverability coefficient is an important factor. We estimate it by using the lifting line theory in which interaction effect among many struts is considered. The result suggests that the twin-hull type is not efficient for inducing the lift force because of the interaction effect. A mono-hull type VLMOS is thus proposed, and structural strength and the maneuverability of the mono-hull type are investigated. The results show that the mono-hull type VLMOS has enough structural strength and maneuverability. In addition, the power supply cost becomes 10% cheaper.