Mississippi State University

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Northeast MS Residential Wind Turbine
Installations

• Mississippi State University
• Alternative Power Systems
• Graduate Students
• Derrick Cherry
• Huang-De Lin
• Midterm Report
• February 17, 2005

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Outline

• Determine Size of Wind Turbine
• Identify System Components
• Future Work

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Average Wind Speed
Class 1
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MS Average Wind Speed
 
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Important Parameters

• Power Cp ½ ? A V3
• Cp Power coefficient (theoretical max .59)
• ? Air density
• A Rotor swept area
• V Wind speed (mph)

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Measure of Wind Turbine Performance

• Annual Energy Output .01328 D2 V3
• D Rotor diameter (ft.)
• V Annual average wind speed (mph)
• Note Typical Household Energy Consumption 9000
  kWh/ year

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Evaluating Potential Wind Energy

• Annual Energy Output .01328 D2 V3
• Precise measurements of wind speed in proposed
  area (Anemometer )
• Kilo-watt hour usage of resident

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Evaluating Wind Energy

• Cut-in Speed
• Minimum wind speed necessary for the wind machine
  to operate. (Typically 8 to 12 MPH)
• Startup Wind Speed
• Minimum wind speed necessary for the wind machine
  to produce useable power. (Typically gt 11 MPH)

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Major Components of Small Wind Turbine System

• Inverter
• AC Disconnect
• Inverter Load Electric Panel

• Wind Turbine
• Battery
• DC Charge Controller
• DC Disconnect

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Typical Wind Turbine Components
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Typical Wind Turbine Components
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Small Wind Turbine Manufactures

• Southwest Wind Power Co.
• Synergy Power Corp. (Hong Kong)
• Toko Asia Enterprises Group of USA
• Turbex
• Wind Turbine Industries Corp.
• Wintec, LLC

• Bergey Windpower Co.
• Fuhrlaender Wind Turbine Co.
• Innovative Technologies Group
• Northern Power Systems
• Point Power Systems
• Solar Wind Works

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Examples Low Wind Performance Turbines
Start-up Wind Speed  3 m/s (6.7 mph)Cut-in Wind
Speed    2.5 m/s (5.6 mph)Rated Wind
Speed   11 m/s (24.6 mph)Rated
Power                 1000 Watts Maximum
Power       1,600 Watts
Rated Output 4500 Watt _at_ 11,6 m/s Cut in wind
speed 2.1 m/s (4.7 mph) Voltages available 24V,
36V, 48V
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Future Work

• Investigate Components of the System
• Analyze System in MATLAB SIMULINK
• Detail Evaluation of Standards Economics
• Contact Wind Turbine Consultants

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Questions
?