A vertical axis floating tidal current power generation device

Abstract

The invention aims to provide a vertical shaft floating type tide generating device which comprises a floating carrier, a water turbine, a truss, a rotating track and a power generating and blade controlling mechanism, wherein the floating carrier is used for carrying the water turbine, the truss, the rotating track and the power generating and blade controlling mechanism, the water turbine is used for converting the kinetic energy of the tide into mechanical energy to drive the truss to rotate, and is a vertical shaft water turbine, the truss is used for carrying the water turbine, and realizing self rotating through the rotation of the water turbine, and the power generating and blade controlling mechanism is used for converting the mechanical energy generated by the rotation of the truss into power energy output by the motor and controlling the change of the blade angle of attack, so as to improve the energy conversion efficiency of the power generating device. The device provided by the invention is strong in environmental load capacity, high in energy conversion efficiency, good in starting performance, stable in the marine environment, and suitable for being developed towards large scale, and can be arranged in rich tide sea area to provide production and life electricity for coastal and island residents.

Description

technical field [0001] The invention relates to a power generating device, in particular to a hydraulic power generating device. Background technique [0002] The effectiveness of using tidal current energy to alleviate energy shortage and reduce environmental pollution has been widely recognized, and the key lies in the development of tidal current energy power generation devices with superior comprehensive performance. At present, there are two main classifications of tidal current energy generation devices based on hydraulic turbines. One is divided according to the structural form of the hydraulic turbine, mainly divided into horizontal axis type and vertical axis type, and the other is divided according to the carrier form, which is mainly divided into Pedestal, Stake and Floating. For the floating tidal current energy generation device based on the vertical axis turbine, it combines the characteristics of the vertical axis turbine and the floating carrier. The advant...

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Problems solved by technology

Although the floating flow energy power generation device based on the vertical axis turbine has the above advantages, there are still some key problems that need to be solved urgently, such as the structural strength and service life of the device, the self-starting problem of the turbine, the optimization of the hydrodynamic performance of the device, and the elimination of water turbines. Rotation side force problem etc.

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