Many participants in wind power technology

Wind power suppliers: There is a large community of manufacturers and developers whose scope of supply ranges from complete wind turbine systems to hardware and software components and to numerous auxiliary subsystems that make up a wind farm. See list, photos, links.

08/10/2011


Power generating potential of Alstom 6-MW prototype DD wind turbine is indicated by its 150-m (492 ft) rotor diameter and 73.5-m blade length. Rotor speed range of 4-11.5 rpm is notably low. Courtesy: AlstomElectric power generation from wind energy is a relatively young but growing industry. In some parts of the world it has shown remarkable growth. Looking ahead, realities of market economics and political issues may not support the same continued growth—at least in some parts of the world.

Siemens 3 MW direct-drive turbine has nacelle dimensions of 6.8 m length x 4.2 m diameter (22.3 ft L x 13.8 ft dia.), enabling transport by standard vehicles. The outer- rotor generator design helps reduce nacelle weight. Courtesy: SiemensThis article updates the original one posted on CE’s Web site in August 2009. (Link to that and many related wind turbine articles below, including videos.)

The focus here is on direct-drive (DD) wind turbine technology that eliminates the gearbox from the drivetrain (see August 2011 CE article on DD wind turbines linked below).

The following is a selected listing of supplier companies to the multimegawatt (MW) wind turbine market. Only DD turbine offerings are listed, but all companies in the first table also make geared turbines, with the exception of Enercon GmbH. The list is not comprehensive—and does not include turbine erection or maintenance services.

 Suppliers of Large Wind Turbines (>1 MW)

Company

 

 

HQ Location

 

Direct-Drive (Gearless)

Turbine Offering

 

Acciona Energy

www.acciona-na.com

 

Spain

 

 

 

Alstom www.alstom.com/power/renewables

 

Switzerland

 

New generation offshore 6 MW

Prototype 2011

Serial production 2014

 

Clipper Windpower

www.clipperwind.com

 

USA

 

 

 

DeWind *

www.dewindco.com

 

Germany

 

 

 

Enercon

www.enercon.de

 

Germany

 

Gearless turbines only

5 models in 2-3 MW range

E-126 rated 7.5 MW

 

Gamesa www.gamesacorp.com/en

 

Spain

 

 

 

GE Energy www.ge.com/energy

 

USA

 

GE (4.1-113)            4.1 MW     offshore optimized

 

Mitsubishi Power Systems

www.mpshq.com

 

Japan

 

 

 

Nordex

www.nordex-online.com

 

Germany

 

N150/6000                6 MW

Prototype 2012-13

Serial production 2014

 

Northern Power Systems

www.northernpower.com

 

USA

 

NPS 2.3                  2.3 MW

 

Siemens Energy www.siemens.com/wind

 

Germany

 

SWT-2.3-113          2.3 MW

SWT-3.0-101             3 MW 

SWT-6.0-120             6 MW

Prototype 2011-13

Serial production 2014 for 6 MW

 

STX Windpower

www.stxwind.com

 

 

Netherlands

 

 

STX 82        1.5 MW, 2 MW

STX 93                      2 MW

 

Suzlon Energy www.suzlon.com

 

India

 

 

 

Vestas        www.vestas.com

 

Denmark

 

 

 

Windtec **

www.amsc-windtec.com

 

USA

 

 

 

*   part of Daewoo Shipbuilding and Marine Engineering Co. Ltd.

** subsidiary of American Superconductor Corp.

Suppliers of Subsystems/Components for Large Wind Turbines

Company

 

Technology/Products Offered

 

URL

 

ABB

 

Variable-frequency drives (VFDs); converters; induction and PM synchronous generators; transformers; switchgear

 

www.abb.us/drives

 

American Superconductor

 

Power converters;

control systems

 

 

www.amsc.com

 

 

Bachmann electronic GmbH

 

Controllers; condition monitoring systems; grid measurement and monitoring modules

 

www.bachmann.info

 

Beckhoff Automation

 

PC-based controls;

I/O terminals; wind farm networking

 

www.beckhoffautomation.com

 

Bosch Rexroth

 

Pitch and yaw drives (electromechanical and hydraulic); yaw and drivetrain brake systems

 

www.boschrexroth-us.com 

 

Cooper Power Systems

 

Software for power trans-mission/distribution analysis; transformers; distribution switchgear

 

www.cooperpower.com

 

Dataforth Corp.

 

Signal conditioners for a variety of sensors; fiber-optic communication modules

 

www.dataforth.com

 

Eaton Corp.

 

Hydraulic pitch control systems; hydraulic rotor brake control; remote condition monitoring

 

www.eaton.com/hydraulics

 

Moog Inc.

 

Electric and hydraulic blade-pitch control; brush slip rings; fiber-optic remote rotor monitoring

 

www.moog.com

 

 

National Instruments

 

Hardware/software for pitch/yaw control; turbine condition monitoring (blade, generator)

 

www.ni.com

 

 

Parker Hannifin Corp.

 

Rotor brake components; pitch systems; power control/inverter modules

 

www.parker.com

 

The Switch Controls & Converters

 

PM synchronous and other generators;

full-power converters

 

www.theswitch.com

 

 

Frank J. Bartos, PE, is a Control Engineering contributing content specialist. Reach him at braunbart(at)sbcglobal.net



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