The Moog Pitch Servo Drive, a component of Moog’s Pitch System responsible for guaranteeing the safe operation of wind turbines, obtained a TÜV certification for compliance with the guideline issued by Germanischer Lloyd. This validates that Moog designs achieve Performance Level D for the wind turbine feathering safety function. The safety of wind turbines is
Encoder interface outputs to Siemens Drive CLiQ
In an effort to increase encoder compatibility with Seimens controls, Heidenhain has developed the EIB 2391S interface box. Ideal for applications with Sinamics drive components, the EIB 2391S enhances the serial interface offering for many of Heidenhain’s absolute encoders. With IP 65 and its compact size, the EIB 2391S is suitable for any industrial environment.
Facility to test 7.5 and 15-MW drivetrains
A $98 million facility capable of accelerated testing of turbine drivetrains of up to 15 MW will soon open its doors on what used to be a U.S. Navy shipyard in North Charleston, S.C. The first test bay, and the first to open will be capable of handling drivetrains up to 7.5 MW. Located on
How simulation improves gears for wind turbines
This article comes from engineering software developer Dassault Systèmes Control over the position of a turbine’s nacelle and blades is essential for the most efficient conversion of the wind’s kinetic energy into electrical energy. Yaw and pitch drives adjust the physical orientation of those components in response to fluctuations in the speed and direction of
Company says $34 billion saved with its installed electric drives
A power and automation technology group has released its annual estimate of the savings achieved by its installed base of drives. ABB says about 310 million MWh of electric power was saved by ABB drives in 2011, an increase of 19% over the previous year. Electric drives regulate the speed and power consumption of electric
2012: Trends in motors and drives
With larger, more powerful turbines coming online, requirements for pitch control are increasing. Experts say the wind-power industry is also beginning to adopt aerospace test technology, the same kind used to vet airplane designs, to simulate loads on wind turbine blades before installation. Pitch control is a key safety system in turbines. Ray Opie, senior
Web-based software sizes linear motion equipment
The latest version of a company’s web-based linear motion-system sizing and selection software, Linear Motioneering 2.0, lets OEM and factory automation users optimize machine design and operation by walking them through an intuitive process that delivers the data necessary to make a logical system selection in minutes. The software includes Thomson products along with enhanced
Motors & Drives 101
Large electric motors in the nacelle power hydraulic pumps, power the blowers for cooling, turn the nacelle, and pitch the blades. Pitch drives can be electric or hydraulic, although hydraulic units seem prevalent on utility-sized wind turbines. Smaller fractional-hp motors are found on a variety of other tasks. Hydraulic pitch controls would use servovalves along
Electrical & Electronic Components 101
Motors and drives Nacelles on utility-scale turbines are filled with motors, drives, and controls. The latter devices are part of the turbine controls that tell motors what to do. In just a few tasks, electric motors pitch the blades on turbines to capture the most power from the available wind. Motors on yaw drives keep the
Pitch system for 3-MW wind turbine
Guodian United Power Technology Co. Ltd. (GUP) has successfully completed the grid connection for its first 3MW wind turbine, which uses Moog’s AC servo motion-controlled pitch system. This expands the partnership between Moog Industrial Group, a division of Moog Inc. and GUP, and promotes the growth of China’s wind power industry. This is the first









