Fan tower drum double-liquid vibration-damping liquid shaking cabin oriented to source network load storage cooperation

The wind turbine tower vibration reduction device, which uses a double-liquid stratification structure and adaptive rotation of the wind vane, solves the problem of unstable vibration reduction performance in existing technologies, and achieves stable vibration reduction and low-cost operation in complex wind field environments.

CN121497768AActive Publication Date: 2026-02-10POWER ECONOMIC RESEARCH INSTITUTE OF JILIN ELECTRIC POWER CO LTD +2
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Patent Information

Application Number
CN202610036769.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-13
Publication Date
2026-02-10
Estimated Expiration
2046-01-13

AI Technical Summary

Technical Problem

Existing wind turbine tower vibration reduction devices have unstable vibration reduction performance in complex wind field environments, and their damping performance degrades after long-term use, resulting in high maintenance costs and difficulty in adapting to multi-directional wind fields and turbulent environments.

Method used

By adopting an immiscible two-liquid layered structure, the damping parameters are controlled by adjusting the liquid ratio. Combined with the wind vane and liquid baffle, adaptive rotation is achieved, reducing energy dissipation and resonance effects, and enhancing vibration reduction.

Benefits of technology

Maintaining stable vibration reduction performance in complex wind farm environments reduces operating costs, extends the service life of wind turbine towers, reduces resonance effects, and improves vibration reduction efficiency.

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Abstract

A double-liquid vibration-damping liquid-shaking tank for a wind turbine tower drum oriented to source network load storage coordination belongs to the technical field of wind turbine vibration-damping equipment, is a liquid-shaking damping structure externally arranged on a wind turbine main body, and comprises a wind direction plate and a liquid-shaking tank structure consisting of an annular liquid-shaking tank, a liquid partition plate, upper-layer liquid and lower-layer liquid, and the turntable fixing structure consists of a rotor and a rotor flange plate. The annular liquid shaking cabin is provided with a central through hole, is sleeved on the tower drum, is internally provided with a liquid partition plate, and is filled with two-phase liquid which has density difference and is immiscible with each other; the wind direction plate is arranged on the outer side of the annular liquid shaking cabin; the liquid shaking damping structure is fixed to the wind turbine tower fixing section through the rotor flange plate. Single shaking liquid is replaced by stably layered immiscible double liquid, the vibration reduction effect of the shaking liquid damping structure is improved, and the shaking liquid damping structure is accurately adaptive to all working conditions; and through linkage of the wind direction plate and the liquid partition plate, the vibration reduction effect of the shaking liquid damping structure is improved, the resonance effect is restrained, and the stability of the vibration reduction effect of the shaking liquid damping structure is enhanced.
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