Siemens Wind Power: Technical Developments
Siemens Wind Power: Technical Developments
Siemens Wind Power: Technical Developments
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Technology Evolution<br />
Stall Technology:<br />
• 600 kW and smaller<br />
• Single Speed Shaft, Fixed Blade Design<br />
CombiStall Technology:<br />
• 1 MW to 2.3 MW<br />
• Single Speed Shaft, Variable Pitch<br />
• Limited, low-speed blade pitch adjustment to control output<br />
• Limited ancillary service capability (frequency regulation, etc.)<br />
Grid<br />
Transformer<br />
Main<br />
circuit<br />
breaker<br />
Frequency converter<br />
M<br />
asynchronious<br />
machine<br />
Gear<br />
box<br />
Rotor<br />
Variable Speed/Pitch Technology:<br />
• 2.3 MW and higher (current offering)<br />
• Full Converter – Rapid Response<br />
• Variable Speed Shaft (but gearbox), Variable Pitch<br />
• Large Range of Possible Capabilities and Ancillary Services.<br />
• Prospective capabilities include Low Voltage Ride Through, Ramp<br />
Rate Control, Frequency Regulation, etc.<br />
Next Step?<br />
• Possibly Direct Drive (eliminate gearbox) – under review and<br />
evaluation.<br />
© <strong>Siemens</strong> AG 2008 All rights reserved.<br />
Page 22 2008/11/05 Energy R WP
Change language