Wind Turbine Cable Deflection Mechanism for Nacelle Rotation
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Solution Overview
Problem
Wind generator set cables entangle due to excessive twisting, leading to reduced heat dissipation and potential damage during the rotation of the nacelle, which affects the operational efficiency and lifespan of the cables.
Innovation Solution
A cable protection device comprising a fixing ring with attaching surfaces and a deflectable clamping member that allows cables to pass through penetration holes, maintaining a preset distance and angle to prevent entanglement while ensuring heat dissipation, comprising a clamping member that is deflectable about a vertical axis to manage twisting forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the nacelle rotates to change wind direction, then the wind generator set can capture wind from different directions, but the power cables become excessively twisted and entangled
Solution Approach 1:
The cable management system is segmented into multiple cable guides distributed around the tower perimeter, each independently guiding cables from different positions. This segmentation allows the cables to be organized in discrete sections rather than as a single twisted mass, maintaining their relative positions during nacelle rotation.
Solution Approach 2:
The cable guides are positioned at different angular positions around the tower (different spatial dimensions), creating a distributed cable routing system. This dimensional distribution prevents cables from twisting around each other by providing separate pathways in the radial direction from the tower center.
2Ease of operation
If the cables are allowed to twist freely during nacelle rotation, then the nacelle can rotate without restriction, but the cables become entangled and heat dissipation deteriorates
Solution Approach 1:
Cable guides are introduced as intermediary components between the rotating nacelle and the stationary tower. These guides mediate the cable routing by providing a fixed reference framework that moves with the nacelle rotation, allowing free rotation while preventing cable entanglement through structured guidance paths.
3Volume of moving object
If multiple cables are bundled together, then space is saved in the tower, but the cables entangle more easily during rotation
Solution Approach 1:
Instead of bundling all cables together as a single unit, the cable guide system segments the cables and distributes them around the tower perimeter. Each cable or small group of cables has its own guidance path, preventing the entanglement that would occur in a tight bundle while still conserving tower space through compact radial arrangement.
Data Source
AI summary
The disclosure provides a cable protection device and a wind generator set. The cable protection device comprises: a fixing ring, which has a through hole extending along a first direction, wherein the fixing ring includes an inner side surface and an outer side surface that are opposite along a radial direction of the fixing ring, the outer side surface comprises two or more attaching surfaces, and a vertical axis is defined in the attaching surface; and a clamping member, which is disposed on the attaching surface, wherein the clamping member is deflectable at least about the vertical axis, the clamping member has at least one penetration hole penetrating along the first direction, and a cable is clamped within the penetration hole and is deflected about the vertical axis relative to the fixing ring within a preset range.