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Permanent magnets are key, says Siemens wind power expert

发布日期：2017-02-10 来源：ElectronicsWeekly.com 浏览次数：865

Siemens Wind Power, chieftechnology officer, Henrik Stiesdal will use his seminar at CWIEME Berlin toexplain how permanent magnet generators can affordably be used to increase thedurability of wind turbines.

Turbine manufacturers such asSiemens Wind Power have been working to eliminate the most complicated and,therefore, sensitive element – the gearbox – by replacing it with a directdrive system.

Thesedirect drive systems, powered by a permanent magnet generator, could run foryears without maintenance.

Wind power breakdowns at aheight of more than a hundred meters and potentially several hundred kilometersout to sea are not easy to fix.

Accordingto Siemens, around half of the annual output of its wind turbines incorporatepermanent magnet generators.

Siemensis not have been the first company to enter this new era of wind power, CTOHenrik Stiesdal, who built his first small wind turbine in 1976 and designedone of the first commercial wind turbines, licensed to Vestas in 1979, believesthis can increase the company’s competitiveness.

“The Siemens claim to fame is that we havedeveloped a simple and easy-to-industrialize machine that could significantlybring down energy costs,” he says.

The technology behind thisachievement will be the focus of a seminar at CWIEME Berlin in June.

“Two rare earths are used in the magnet –one is difficult and costly to source, while the other is not,” says Stiesdal.“In my seminar I will explain how we have managed to decrease the share of thetruly ‘rare’ rare earth and will eventually eliminate it from the magnets wemake in a few years’ time.”

According to Chloe Theobald,content manager for CWIEME Berlin: “Stiesdal is the industry authority on windpower technology and has so many invaluable insights to share with our guestsat this year’s show.”

Stiesdalwill be presenting his seminar on ‘The gearless evolution of wind turbinegenerators’ at CWIEME Central on Thursday 26th June.