Wind power plants with an oscillating working movements
Wind power plants with self-oscillatory (reciprocating or rotary-oscillatory) working motion of aerodynamic surfaces are considered. A scheme is proposed of a unified module of power plant with self-oscillatory working motion. Modular installations are considered, which are built (assembled) in the form of an even number of unified modules with neighboring modules having opposite oscillation phases. A scheme of a modular mast-type power plant with self-oscillatory working motion is presented, consisting of two unified blocks and a guyed mast. At low flow rates, it is advantageous to use a substantially non-linear operating mode of the power plant with self-oscillatory working motion, which, by analogy with other self-oscillating systems, can be called pulse-width. The power of the considered power plant in the pulse-width mode is shown to be twice as high as the power of the same power plant in the linear mode in almost the entire wide range of speeds. The combined mode of operation of the power plant is considered and the advantages of its application are described.