Energy-harvesting power generation apparatus based on vibration of inhaul cable of cable-stayed bridge

Abstract

The invention provides an energy-harvesting power generation apparatus based on vibration of an inhaul cable of a cable-stayed bridge. The energy-harvesting power generation apparatus comprises a rope-shaped energy-harvesting power supply apparatus, wherein the rope-shaped energy-harvesting power supply apparatus is spirally wound around the inhaul cable of the cable-stayed bridge, and can vibrate along with the inhaul cable. The electric energy generated by the power generation apparatus can fully supply enough power to a monitoring system, a damping system, an illumination apparatus, traffic signs and the like on the bridge structure; the energy-harvesting power generation apparatus is also equipped with an electric energy storage apparatus; when surplus electric energy is generated, the surplus electric energy can be stored in time so as to ensure the continuous power supply of the system; and therefore, a brand new environment-friendly and green energy is supplied to the common cable-stayed bridge structure in highways and urban bridges.

Description

technical field

[0001] The present invention relates to an energy-captured power generation device for cables of a cable-stayed bridge. Background technique

[0002] The cable frequency of the long-span cable-stayed bridge is relatively close to the low-order vibration frequency of the structure. Under the action of environmental loads such as wind and rain, the coupled vibration of the cable bridge is prone to occur, resulting in local vibration of the cable. As the span of the cable-stayed bridge increases, the span of the cable also increases. At the same time, due to the low natural vibration frequency, it is easy to generate large-amplitude vibration. As a flexible structure under the influence of environmental dynamic loads throughout the operation period, This vibration is inevitable. Most of the existing research work on the local vibration of cables in cable-stayed bridges focuses on the threat of cable vibration to the safety and durability of the structure. If t...

Examples

Embodiment Construction

[0023] Refer to attached drawings.

[0024] The cable-stayed bridge cable-captured power generation device of the present invention includes a rope-shaped energy-captured power generation device 13 installed on the cable-stayed bridge cable 1 . The rope-shaped energy-captured power generation device 13 includes a plurality of piezoelectric units 6 . The distance between the two is about 8cm. The number of piezoelectric units is determined by the power required by the electrical equipment. The more piezoelectric units, the greater the amount of power that can be provided.

[0025] A plurality of piezoelectric units 6 are connected in series through wires 7 to form a power supply circuit, and the wires 7 serve to connect the piezoelectric units, voltage stabilizer rectifiers, electrical energy accumulators, transformer devices, circuit output ports for connecting electrical equipment and transmission. effect of current.

[0026] The power supply circuit also includes a voltage ...

technical field

[0001] The present invention relates to an energy-captured power generation device for cables of a cable-stayed bridge. Background technique

[0002] The cable frequency of the long-span cable-stayed bridge is relatively close to the low-order vibration frequency of the structure. Under the action of environmental loads such as wind and rain, the coupled vibration of the cable bridge is prone to occur, resulting in local vibration of the cable. As the span of the cable-stayed bridge increases, the span of the cable also increases. At the same time, due to the low natural vibration frequency, it is easy to generate large-amplitude vibration. As a flexible structure under the influence of environmental dynamic loads throughout the operation period, This vibration is inevitable. Most of the existing research work on the local vibration of cables in cable-stayed bridges focuses on the threat of cable vibration to the safety and durability of the structure. If t...

Examples

Embodiment Construction

[0023] Refer to attached drawings.

[0024] The cable-stayed bridge cable-captured power generation device of the present invention includes a rope-shaped energy-captured power generation device 13 installed on the cable-stayed bridge cable 1 . The rope-shaped energy-captured power generation device 13 includes a plurality of piezoelectric units 6 . The distance between the two is about 8cm. The number of piezoelectric units is determined by the power required by the electrical equipment. The more piezoelectric units, the greater the amount of power that can be provided.

[0025] A plurality of piezoelectric units 6 are connected in series through wires 7 to form a power supply circuit, and the wires 7 serve to connect the piezoelectric units, voltage stabilizer rectifiers, electrical energy accumulators, transformer devices, circuit output ports for connecting electrical equipment and transmission. effect of current.

[0026] The power supply circuit also includes a voltage ...

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