Onsite wind power unit
The article is devoted to the development of a low and medium power wind power unit intended for installation in rural areas in the immediate vicinity of electric power receivers. This will partially relieve the rather long and often overloaded rural electrical networks and, as a result, reduce the loss of electrical energy. The conditions for the placement and operation of such wind turbines require that the wind turbine has a simple design and, as a result, high reliability, low cost, and ease of maintenance. This is achieved by placing the asynchronous generator directly in the support of the wind turbine coaxially with the axis of rotation of the head, and the connection of the generator shaft to the shaft of the wind turbine is carried out through a bevel gearbox and an overrunning clutch. To orient and limit the power of the wind turbine, a mechanical system based on an impeller with a vertical axis of rotation and a curtain driven by a side shovel that receives wind pressure is used. As a result, it was possible to get rid of the flexible cable prone to twisting, to simplify the control system of the wind turbine at wind speeds, both lower and higher than the design speed.