Device of Floating Wind Turbine Capable of Counterbalancing Torques Therein

A device of floating wind turbine capable of counterbalancing torques therein, comprising a floating foundation, two wind turbines provided on said floating foundation, and a seabed anchor attached to said floating station and said wind turbine by tethers so that said floating foundation can drift on the sea along wind direction to have blades of said wind turbine aligned with wind direction, the device characterized in that:

• said floating foundation are symmetrically provided with two wind turbines, wherein the two wind turbines has an approximately equal speed and output power;
• the two wind turbines respectively exert an upward force and a downward force at a central portion of said floating foundation between the two wind turbines, whereby the upward force can be counterbalanced by the downward force, so that said wind turbines and said floating foundation can be maintained at a balanced condition.