Vibration reduction device of offshore floating type wind turbine and connecting method

Abstract

The invention relates to a vibration reduction device of an offshore floating type wind turbine and a connecting method. The vibration reduction device comprises a damping system, a slidable flexibleplate system, an accessory structure, a wind turbine tower 3, a corrosion-resistant light high-strength floating type outer wall 10 and an elastic supporting system 14, wherein a damper is used for connecting the structures into a whole body through a multi-directional rotating support at the tail and the tip of a pressure bearing rod. When a wave load acts on the corrosion-resistant light high-strength floating type outer wall, a flexible bendable steel plate on the side wall of the wind turbine slides upwards along a rail, the corrosion-resistant light high-strength floating type outer wallhorizontally moves towards the direction of the wind turbine tower, and at the moment, the force is transmitted to the hydraulic homogeneous magnet damper through the corrosion-resistant light high-strength floating type outer wall, so that the damper is compressed to dissipate energy. Due to the complex environment on the sea, the structure can generate vibration which rises and falls along withthe wave, and at the moment, the elastic supporting system arranged at the bottom of the wind turbine tower can gradually dissipate the energy generated by the wind turbine due to the inertia force through a spring inside a sleeve.

Description

technical field [0001] The invention relates to the technical field of wind turbine structure vibration reduction control, in particular to the offshore floating wind turbine vibration reduction technology. Background technique [0002] Offshore wind power is usually close to the center of energy consumption and the wind resources are better than onshore wind power. The utilization and development of wind power is gradually shifting from land to sea, showing a trend of accelerated development. However, due to limited offshore space resources, the development of offshore wind power will inevitably be the same as in the past. Like the oil and gas industry, it is constantly moving from shallow and offshore waters to deep and deep seas. Correspondingly, the form of offshore wind turbine support structure also changes with water depth, evolving from a fixed support structure to a floating support structure. Although the floating support structure has become the mainstream in the...

AI Technical Summary

Problems solved by technology

When working at sea, due to the complex seawater conditions, the floating support structure will vibrate in multiple directions, causing the wind turbine on the support structure to shake. Due to the heavy weight of the wind turbine, the shaking will shift the center of gravity of the entire structure , which will lead to structural overturning and damage, resulting in serious economic losses

Images