In 2014, Germany's Das and other media published a ranking of the world's top 10 wind turbine manufacturers.
The annual sales volume, from largest to smallest, is:< /p>
Vestas (Denmark)
Taima Technology (China)
Sinovel (China)
Goldwind Technology (China)
< p>Enacon (Germany) )GE Wind Power (United States)
Suslan (India)
Guodian United Power (China)
Siemens (Germany)
< p>Mingyang Wind Power (China).Bladeless wind turbines should be the newest type.
The principle behind Vortex wind power generation is the Karman vortex effect in fluid dynamics, which refers to the fact that when a constant incoming flow bypasses certain objects under certain conditions, the two sides of the object fall periodically. Double linear vortices with opposite directions of rotation and regular arrangement are produced after nonlinear action, a streetKarman vortex forms. For example, water flowing through the pillars of a bridge and wind blowing through towers, chimneys, cables, etc. will form Karman vortices. Once the vortices are large enough, they can cause the structure to oscillate. Vortex takes advantage of this aerodynamic instability to maximize oscillation and capture mechanical energy, then use this mechanical energy to generate electricity. Of course, the design of this device is completely different from that of a classic turbine. It mainly consists of a fixed mast, a generator and a hollow, lightweight, semi-rigid fiberglass cylinder on top. Vortex automatically changes stiffness and “synchronizes” with wind speed to maintain resonance without any mechanical or human intervention. Using the vortex spill effect for wind power generation is a quantum leap forwardtechnology in the field of wind energy which will produce energy more efficiently, cheaper and more environmentally friendly. The technology has attracted interest from Harvard University as well as SunEdison's TerraForm renewable energy division, Power, Inc. and Dat Venture.