Cable guiding in wind turbine towers

A method for guiding a power cable in a wind turbine, comprising:

• connecting the power cable to an electrical power component in a nacelle of the wind turbine;
• arranging the power cable through a central area of a bottom of the nacelle such that the power cable extends substantially vertically downwards from the nacelle to a first height along a central area of a tower;
• directing the power cable from the central area of the tower through a platform and to an inside wall of the tower proximate the first height;
• attaching the power cable to the inside wall of the tower above and below the platform such that a substantially vertical loop is formed in the power cable.

A method for guiding a power cable in a wind turbine, comprising:

• connecting the power cable to an electrical power component in a nacelle of the wind turbine;
• arranging the power cable through a central area of a bottom of the nacelle such that the power cable extends substantially vertically downwards from the nacelle to a first height along a central area of a tower;
• directing the power cable from the central area of the tower to an inside wall of the tower proximate the first height;
• attaching the power cable to an inside of a wall of the tower forming a substantially vertical loop;
• arranging auxiliary cables substantially in parallel with the power cable along the central area of the tower, and guiding the power cable and the auxiliary cables in a cable guiding assembly;
• and
• wherein proximate the first height, the auxiliary cables include an auxiliary cables loop, wherein the auxiliary cables loop is arranged separately from the power cable loop.

A wind turbine comprising:

• a wind turbine rotor including a plurality of rotor blades;
• a generator operatively coupled to the wind turbine rotor for generating electrical power;
• a power electronic converter configured to convert the electrical power generated by the generator to a converted AC power of predetermined frequency and voltage;
• a main wind turbine transformer having a low voltage side and a high voltage side for transforming the converted AC power to a higher voltage;
• a nacelle housing the generator, the power electronic converter, and the main transformer therein;
• a tower, the nacelle rotatably supported on the tower;
• a power cable electrically connecting the high voltage side of the main wind turbine transformer to an electrical connection point proximate a bottom section of the tower;
• a platform at a fixed height within the tower;
• wherein the power cable is arranged from the nacelle downwards along a central area of the tower through the platform, and wherein the power cable comprises a vertical power cable loop at the fixed height of the platform;
• the power cable loop comprising a movable cable part, and a fixed cable part;
• and
• the fixed cable part attached to an inner wall surface of the tower above and below the platform so as to extend along the inner wall surface of the tower.