Wind Energy

On the pathway towards finding a more sustainable energy supply that is free of fossil fuels, wind power is of critical importance. Indeed, wind farms are the biggest contributor to renewable energies. Onshore, near the coast or Offshore, they generate environmentally-friendly energy. When it comes to drive technology and system controls, many turbine manufacturers rely on KEB Automation. Our extensive product portfolio is available for equipping wind farms that generate up to 15 megawatts of electricity.

Strongly positioned in the core areas of pitch and yaw, KEB offers certified drive controllers that optimally adjust the rotor blades or nacelle to the direction of the wind. Motors in various performance classes and tailor-made spring-applied brakes, such as the COMBISTOP, round off the complete package.
 

  • Certified solutions for pitch and yaw
  • Onshore and offshore applications
  • Equipment for wind farms up to 15 MW

Solutions for Onshore and Offshore Wind Farms

Your Contact
Keb produktmanager brohl ludger windpower

Ludger Brohl

Product Manager Wind Energy

+49 5263 401-703
+49 160 7000576
ludger.brohl@keb.de

Pitch System Solutions

Space-saving pitch inverters such as the COMBIVERT P6 reliably adjust rotor blades and are universally applicable and robust. At the same time, the P6 is not just an inverter but an all-in-one-drive controller, which combines a charger for the backup system as well as a fully-fledged PLC. In addition, KEB offers corresponding motors and brakes, which are used in the world’s largest wind farms – both onshore and offshore. With countless options available for configuring and monitoring the system, KEB’s products and solutions always ensure the smooth, efficient and safe operation of wind turbines.

Technology

Functional safety in pitch applications

If faults occur in the wind turbine or in the electrical network, safety always comes first. If safety-critical conditions or errors occur within the pitch system, the pitch inverters carry out a safety run independently of the controls. During this process, the rotor blades are turned out of the wind safely and quickly. In this way, the COMBIVERT P6 pitch inverter protects the turbine from dangerous excess rotation speeds. As TÜV Rheinland confirms: the safety run achieves performance level (PL) d in accordance with EN ISO 13849-1.

More about functional safety

PITCH LIBRARY

Support during programming tasks, flexible components for customer-specific requirements and assistance when commissioning the COMBIVERT P6 – choose the right software package for your needs. Standard functions for the pitch inverter are integrated into the basic version of our pitch library. In addition, the “extended pitch library” contains predefined functional modules for typical tasks of a pitch system. So all you have to do is program the turbine-specific interfaces. KEB can also write a customer program tailored to your specific requirements.

The pitch library offers all this and more, and is currently available in two versions:

Pitch-Monitoring

Identify maintenance needs in good time: cutting-edge monitoring functions ensure that the necessary maintenance tasks can be carried out at an early stage on brakes, energy storage systems and fans. This minimises unwanted downtimes. However, if a failure should occur, a freely programmable data logger enables retrospective fault diagnosis via remote access. Countless field bus solutions ensure smooth, real-time connection of the pitch system to the turbine’s controls.

Holding brakes for pitch system solutions

In addition to climate resistance and corrosion protection, torque and temperature stability are constant requirements in the field of wind turbine rotors. Installation heights over 1,000 metres above sea level and vibration resistance are also important framework conditions for components in wind farms. KEB’s holding brakes are designed, adapted and produced specifically for the individual application. 

The technology behind holding brakes for pitch system

YAW System Solutions

With KEB’s yaw system solutions, the turbine is always aligned with the wind. The multiple-axis controller, which includes drive monitoring, ensures 360-degree yaw control. This means that nacelles can be adjusted flexibly with little wear, ensuring that the wind turbine is always facing the right direction.

KEB’s regulated drive controllers not only guarantee smooth starting and braking of the nacelle, but also ensure uniform torque distribution. This reduces mechanical loading not only on the drive train but also on the tower structure, thereby increasing the service life. The generation of defined holding torques at a standstill, and the reduction of torsional moment are further advantages of KEB’s yaw system solution.

Technology

Yaw functions

Our wide selection of drive functions ensures that you get the most out of your yaw system solution. For example, the yaw motion control enables joint operation of all drives in speed-controlled mode with uniform torque distribution. The one-off calibration of a reference position is all it takes to ensure continuous detection of the yaw angle. Countless field bus solutions allow for smooth, real-time connection of the yaw system to the turbine’s controls.

Yaw-Monitoring

Want to keep an eye on everything? This is possible thanks to the drive system’s monitoring functions and a specially developed yaw library. This clearly presents all relevant drive data and error messages. For example, you might detect a gear breakage with the help of the “Gearbox Monitoring” module. It is also possible to monitor the motor cable, e.g. to check for cable breakage, via a special module. If a fault does occur, the stored fault history and a freely programmable data logger help with the diagnostics – also via remote access.

DC INTERCONNECTION

Save energy while reducing the installation workload at the same time. DC interconnection makes sure of this and more, while paving the way for exchanging energy with other frequency inverters. Only one AC power supply is required for the DC coupling. KEB’s drives are freely scalable and designed for universal use. This gives the user maximum efficiency and flexibility in the actual application. An added advantage is that eliminating braking resistors reduces heat build-up and ensures less space is needed in the control cabinet.

Take advantage of DC interconnection

Holding brakes for Yaw system solutions

Minimal downtimes, maximum fail-safety, climate resistance and corrosion protection are not uncommon in the area of wind turbine nacelles. Thanks to KEB’s customized holding brakes, the high requirements of the customer’s specifications are met, and operating costs are reduced at the same time.

The technology behind holding brakes for yaw system solutions

Sales Documentation

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EU Declaration of Conformity P6
R0I
(pdf, 29.09.2023, 447 KB)
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UK Declaration of Conformity P6
R0A
(pdf, 17.10.2022, 454 KB)
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Programming manual P6 Firmware 2.5
v02
(pdf, 29.11.2017, 5 MB)
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Programming manual P6 Firmware 2.6
V01
(pdf, 03.05.2018, 5 MB)

What we offer in the area of wind energy

News
KEB offers robust drive and control technology for the pitch and yaw mechanisms in wind turbines. This technology must fulfil important criteria for offshore and onshore use.
Tim Schöllmann | 17.02.2021
Webseminars
High power fits us: wind turbines must work safely and stably and meet the highest quality standards.
Sebastian Eicke | 02.02.2021
Dirk Ehlert | 02.02.2021
News, Video
The trend is towards ever more powerful wind turbines. This is underlined by the new 23P6 pitch inverter from KEB especially for large wind turbines.
Dirk Ehlert | 16.12.2020