Wind€Energy€Facts Technology · WIND€TECHNOLOGY€HAS€A€UNIQUE€IDENTITY STALL€...

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Wind Energy Facts - Technology P Jamieson, Garrad Hassan, March 2009

Transcript of Wind€Energy€Facts Technology · WIND€TECHNOLOGY€HAS€A€UNIQUE€IDENTITY STALL€...

Page 1: Wind€Energy€Facts Technology · WIND€TECHNOLOGY€HAS€A€UNIQUE€IDENTITY STALL€ disaster€for€an€aircraft€–often€useful€in€a€wind€turbine FATIGUE€–motor€car,€lifetime€operation€=€4€months€continuous€–loving€care

Wind Energy Facts ­ TechnologyP Jamieson, Garrad Hassan, March 2009

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WIND TECHNOLOGY HAS COME  A LONG WAY!

1980 QUESTIONS

•Will wind ever be sufficiently economic?•Can it contribute significantly to national electricity demands?•Can wind turbines survive 20 year lives in a challenging

environment?•Can electricity networks accommodate large amounts of wind

capacity?

2009 ANSWER YES!

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WIND TECHNOLOGY HAS A UNIQUE IDENTITY

STALL  ­ disaster for an aircraft –often useful in a wind turbine

FATIGUE –motor car, lifetime operation = 4 months continuous –loving carewind turbine, 13 years or more of continuous operation –lonely life,six monthly visits

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DESIGN OPTIONS –Blade number?

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DESIGN OPTIONS –Horizontal or vertical axis?

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WIND TURBINE –WHAT’S INSIDE?

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WIND TURBINE –WHAT’S INSIDE?

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WIND TURBINE –E 126 ­ Largest in the world

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0

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1970 1980 1990 2000 2010

time [year]

GROWTH CURVES

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1930 1950 1970 1990

yearm

ax ta

ke o

ff w

eigh

t [t]

LARGEST WIND TURBINES LARGEST AIRCRAFT

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WINDTURBINES

How bigwill they

get?

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ROTOR SAFETY –VITAL!

DOUBLE THE WIND SPEED –EIGHT TIMES THE WIND POWER

PITCH CONTROL  ­ VARIABLE SPEED

STALL REGULATION –FIXED/TWO SPEED

PITCH CONTROL

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TESTING

Essential forsound products

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OFFSHORE WIND –DRIVING THE TECHNOLOGY

Boat Landing

IntermediatePlatform

Tower

Work Platform

External Jtubes

Foundation

Substructure

Transition

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THE FUTURE –Floating in the sea or up in the air?

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WIND TECHNOLOGY HAS COME  A LONG WAY!

•Increasingly significant contributions to national electricity supplies

•Advanced design tools, testing facilities and certification procedures

•Striving to establish the technology offshore and access moreresource

•Much active innovation continues driven by the challenges of offshoreand cost  reduction