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RAEL Testing Small Wind Turbine Generators Design of a Driving Dynamometer en Pepe :: UC Berkeley :: Renewable and Appropriate Energy Lab :: Wind Group :: 16 May RAEL Wind Group

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RAEL. Testing Small Wind Turbine Generators Design of a Driving Dynamometer Stephen Pepe :: UC Berkeley :: Renewable and Appropriate Energy Lab :: Wind Group :: 16 May 2007. RAEL Wind Group. rotor efficiency. rotor. wind power. electrical power. mechanical power. mechanical power. - PowerPoint PPT Presentation

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RAEL

Testing Small Wind Turbine GeneratorsDesign of a Driving Dynamometer

Stephen Pepe :: UC Berkeley :: Renewable and Appropriate Energy Lab :: Wind Group :: 16 May 2007

RAELWindGroup

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepero

tor

effic

ienc

tip speed ratio

torq

speed

load

mechanicalpower = xtorque speed

windpower

rotormechanical

power

mechanicalpower

electricalpower

generator

(Permanent Magnetic Synchronized Wind-Power Generate Electricity Machine)

(Feng Hua Electronics Limited of Shen - Yeng)

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

Vary LoadResistance

Vary Speed

Measure Current& Voltage

how tomeasuretorque?

how todrive

generatorat variable

speed?

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

a b c

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

QuickTime™ and aH.264 decompressor

are needed to see this picture.

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

QuickTime™ and aH.264 decompressor

are needed to see this picture.

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

Dynamometer ModelingEstimate torque output from experimentally measured quantities

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

Generator ModelingPredict generator behavior given speed and load resistance

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

Property RatedModele

DiffUnits

Voltage Constant

0.193 0.184 4.7% VRMS/rpm

Power @ 300 rpm, 48 V

1000 1384 38% W

Voltage @ 300 rpm, 1000 W

48 58 21% VDC

Renewable and Appropriate Energy Lab :: Wind Group Stephen Pepe

To DoDesign driving dynamometer

Build driving dynamometer

Run preliminary tests

Obtain Masters degree

Improve chain drive

Retest CE&P machine to check model predictions

Expand testing: blueEnergy, EWB/AIDG

RAEL

Testing Small Wind Turbine GeneratorsDesign of a Driving Dynamometer

Stephen Pepe :: UC Berkeley :: Renewable and Appropriate Energy Lab :: Wind Group :: 16 May 2007

RAELWindGroup

Molte Grazie

Professor Dan Kammen

Professor Dennis Lieu

Tom Graly - California Energy and Power

Dan, Christian, and Pete - RAEL Wind Group

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