Damping device for fan tower, fan tower and working method of damping device

Abstract

The invention belongs to the technical field of wind power generation, and discloses a damping device for a fan tower. The damping device comprises a steel rope, a guide mechanism, a two-way hydraulic cylinder, a hydraulic cylinder, a hydraulic pump and a generator which are arranged in the fan tower, wherein the two-way hydraulic cylinder is arranged at the bottom of the fan tower and comprises a cylinder body and piston rods arranged at two sides of the cylinder body; the two piston rods are separately connected with one steel rope, and the other end of the steel rope is connected to the top of the fan tower after passing through the guide mechanism; oil inlets and oil outlets are formed in two cavities of the two-way hydraulic cylinder, the oil inlets are connected with an oil return pool, and the oil outlets communicate with an oil inlet of the hydraulic cylinder; and an oil outlet of the hydraulic cylinder communicates with the generator through the hydraulic pump. The invention further discloses a working method of the damping device, vibration energy is converted into electric energy under the condition that vibration of the tower is reduced, and full utilization of the energy is achieved. The device not only can solve the problem of vibration of the fan tower, but also can recycle the vibration energy of the fan tower for power generation.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a shock absorbing device for a fan tower, a fan tower and a working method thereof. Background technique [0002] Among the current green power technologies, wind power generation is one of the most important technologies. With the rapid development of the wind power industry, large capacity, large impellers, and high towers have become the main direction for the development of wind turbines. Along with the development of wind power, there is also the accident of wind turbine tower collapse. This has caused major economic losses to wind power operators, wind turbine manufacturers and related parties, and even serious personal injury accidents, seriously affecting the healthy development of the industry. The analysis shows that the seismic intensity of the tower tube is one of the important reasons for the collapse of the tower. At present, most of the...

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Problems solved by technology

At present, most of the wind turbine towers are not equipped with tower shock absorbers, and some wind tower shock absorbers mainly dissipate the vibration energy and do not utilize the vibration energy

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