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Wind energy.
Renewable energy production is becoming increasingly important, especially wind turbines. With a hub height of 60 meters and 1.5 megawatts of power, wind turbines that were originally considered to be enormous are now standard and built worldwide using German technology. In order for the turbines to work perfectly as well as cost-effectively, the optimum balance between torque and speed must be found. For this, it is necessary to be able to adjust the rotor blades. It’s not enough to turn the head of the turbine into or out of the wind. In case of high wind speeds, rotor blade adjustment is an additional way to apply the brakes effectively and an important safety aspect.
All three rotor blades must always be aligned synchronously, because excessive forces can otherwise act on a single blade. This means the rotor blade adjustment must have a central control system that is also guaranteed to function even in case of power failure. To make the task even more difficult, the hub is only accessible from the outside. On the shaft of the rotor, only a few contacts are available on the slip ring for establishing a connection. A control system via the hub and accommodation of rotor blade technology in the nacelle are therefore not possible. On-site installation in the hub is not practical and economical due to the height and difficult accessibility.
The entire rotor blade adjustment system is supplied with electrical power just through the slip rings, so only a few contacts of the slip ring are necessary. A central control box coordinates the rotor blade positions, which are each adjusted by their own drive control. This includes a battery pack to maintain control capability in case of power failure. Everything is modular and ready to plug in. All connections are pre-tested on a specially designed test station with contact force monitoring, eliminating errors and ensuring fast commissioning.
The central control module connects the individual drive controls with a single connector kit in each case. These align the rotor blade with a servomotor. The pre-fabricated installation can be quickly incorporated into the hub on the ground. Supply, signals and bus are consolidated in a single robust plug connector. The rotor blade is completely installed electrically in no time.
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SPS Fair 12th – 14th November 2024
At the SPS 2024 (12-14 November, Nuremberg), the HELUKABEL Group is exhibiting electrical connection technology for all industrial automation sectors. The portfolio includes cables and wires, complete system solutions for energy transmission, and intelligent lighting systems. Visitors can experience the new HELULIGHT Smart Process addressable LED lights at our booth in hall 2, stand 230/231. With these lights, any number of individual machine and system processes can be visualised clearly.
The HELULIGHT Smart Process LEDs being exhibited by the HELUKABEL Group at the SPS are part of an intelligent lighting and signalling system ideal for a wide range of industrial applications. These are individually addressable, RGB LEDs make it possible for different operational parameters such as progress, fill levels, or temperature to be easily monitored visually by machine and systems operators. Thanks to its analogue controls, the HELULIGHT Smart Process is compatible with all common controllers and can be used with virtually all machines, both outside on the housing and inside the machine. This system functions as a standardised and easy-to-implement solution for the visualisation of processes.
Awaiting visitors to the HELUKABEL booth is an extensive assortment of electrical connection technology products. This includes cables, wires, accessories, custom plastic, steel, and stainless-steel drag chains, and pre-assembled and ready-to-use system solutions. The flexible applications of industrial automation and mechanical and plant engineering are in the spotlight.
The HELUKABEL portfolio includes the HELUCHAIN range of drag chain cables, which are specially designed for use in drag chains. A number of variations of these cables are now available with a TPE outer sheath. This plastic material is especially robust and abrasion-resistant, which makes it ideal for extreme mechanical loads and weather conditions. Users have the choice between the HELUCHAIN MULTISPEED 522-TPE control and connection cable, and the HELUCHAIN MULTISPEED 600 single-core cable, all available in both screened and unscreened models. The complete product family is UL certified and is therefore suitable for international use. For all applications not subjected to extreme operating conditions, HELUKABEL has expanded its portfolio to include a number of affordable solutions. With these, we are able to offer our customers better value for their money.
For industrial automation, the HELUKABEL portfolio also includes ROBOFLEX series data and control cables. These cables are designed for use on highly dynamic industrial robots that work in three dimensions. They are able to reliably withstand tension, compression, bending, and torsion equally well. The ROBOFLEX-recycle is also exceptionally resistant to oils and welding beads.
A wide array of data, network, and bus cables are also available, such as HELUKAT copper cables or HELUCOM fibre optic cables, which have proven to exhibit exceptional transmission properties, even in the most demanding of applications. As a competent partner of the drive technology sector, HELUKABEL delivers with motor, encoder, and hybrid cables, as well as accessories, for servo drives. The TOPSERV Hybrid line of PVC and PUR single-cable solutions supports all common digital interfaces such as DSL, EnDat, or EtherCAT.
Planning on visiting us? You can find us at the SPS 2024 in hall 2 at stand 230/231. We look forward to seeing you there!
