Flow-induced vibration power generation device using active flow control

Abstract

The present invention discloses a flow-induced vibration power generation device using active flow control. The flow-induced vibration power generation device comprises a main cylinder and a generator system; an upper platform and a lower platform which are connected with each other through elastic connecting plates are arranged under the cylinder; the elastic connecting plates are fixedly connected with two sides of the upper platform and lower platform so as to form a deformable through type supporting seat; the flow-induced vibration power generation device is also provided with additional cylinders and an electromechanical control system; the electromechanical control system includes programmable stepping motors, bearings and a connecting cable, wherein the connecting cable is connected with the programmable stepping motors; the upper end and lower end of the main cylinder are provided with clamping rings; the clamping ring of the upper end of the main cylinder is connected with the bearings; the clamping ring of the lower end of the main cylinder is connected with the housings of the programmable stepping motors; and one end of each additional cylinder is connected with the rotor of the corresponding programmable stepping motor; and the other ends of the additional cylinders are sleeved with the bearings. According to the flow-induced vibration power generation device of the invention, the rotation of the additional cylinders can be automatically adjusted in real time, so that the flow state of the periphery of the main cylinder can be controlled, and therefore, the overall ocean current utilization efficiency and economic applicability of the flow-induced vibration power generation device can be improved.

Description

technical field [0001] The invention relates to the field of new energy power generation equipment and fluid mechanics, in particular to a flow-induced vibration power generation device that improves energy utilization efficiency by adopting active flow control. Background technique [0002] With the rapid development of the global economy, fossil fuel resources are increasingly depleted, and the environmental pollution caused by them is becoming more and more serious. The development and utilization of clean and renewable energy has become a strategic choice for various countries in the world today. Among the many clean energy sources, ocean current energy has attracted more and more attention from the scientific and engineering circles for its efficient development and utilization due to its large scale, stable flow, and wide distribution. According to statistics, the world's available ocean current energy is as high as 5 million megawatts. China is also rich in ocean cur...

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Problems solved by technology

However, the surface roughness control technology belongs to passive flow control, which cannot adjust the roughness and distribution parameters of the surface roughness in real time according to the hydrodynamic environment in which the ocean current energy utilization device is located, so that the ocean current energy utilization device cannot be in the optimal state at all times

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