Vertical axis wind turbine system

A vertical axis wind turbine system comprising:

• an upper connection plate, a lower connection plate, a support rod, at least two vertical axis wind supply units, two transmission sets and a generator set;
• wherein the support rod is arranged between a center of the upper connection plate and a center of the lower connection plate;
• the vertical axis wind supply units that receive force in one direction are respectively arranged between two sides of the upper connection plate and the lower connection plate;
• the vertical axis wind supply unit includes three blades disposed equally around a rotor shaft and each blade includes a blade body and a plurality of valves;
• the blade body is a curved and helical plate having a plurality of crossed barriers and a plurality of insertion holes among the crossed barriers;
• cross section of each barrier is wing-shaped;
• each valve is fixed on an upwind surface of the blade body by an upper side thereof connected to the blade body and is corresponding to at least one insertion hole;
• each of the rotor shaft is connected to the generator set by the transmission set.