Power Curve Measurements of Locally Manufactured Small Wind Turbines - - PowerPoint PPT Presentation

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Power Curve Measurements of Locally Manufactured Small Wind Turbines - - PowerPoint PPT Presentation

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Department Of Mechanical Engineering. Power Curve Measurements of Locally Manufactured Small Wind Turbines 8 th PhD Seminar on Wind Energy in Europe Jon Sumanik-Leary & Hugh Piggott 12 th 14 th September 2012 Supervisors: Dr Rob

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Power Curve Measurements of Locally Manufactured Small Wind Turbines 8th PhD Seminar on Wind Energy in Europe

Jon Sumanik-Leary & Hugh Piggott 12th – 14th September 2012 Supervisors: Dr Rob Howell (Mechanical Engineering) Dr Aidan While (Town and Regional Planning)

Department Of Mechanical Engineering.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

  • Introduction to Scoraig, Hugh Piggott and

locally manufactured technology

  • Aims
  • Site conditions
  • Technical specifications
  • Results

Outline

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Scoraig

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Scoraig.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Hugh Piggott.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Hugh Piggott.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Getting by on Scoraig.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Local manufacture.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Local manufacture.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

  • Accurately measure performance

– 1.2-4m diameter

  • Characterise variation inherent in locally

manufactured technology

– Identify root causes of discrepancies in power performance

  • First data set:

– 1.8m Glasshouse turbine

Aims.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

  • Mean wind speed:

4.97m/s

Site wind conditions.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Wind power system.

Blades Number 3 Profile Based on Aquila Material Wood (Siberian Larch) Generator Generator topology Axial flux permanent magnet Permanent magnet material Neodymium-iron-boron (NdFeB) Nominal voltage 12V Rotor disc material Steel, polyester/fiberglass composite Stator material Polyester

  • No. coils

6

  • No. poles

8 Resistance 0.412Ω Tower Height 7.7m Type Tilt-up guyed Material Tubular steel Electrical System Battery type 4x450Ah Rolls S-600 6V Battery configuration 12V - 2 series pairs paralleled Charge controller Tristar 45 in diversion mode Inverter Studer Joker 800W

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Data logging system.

Variable Sensor Wind speed NRG Max40 Wind direction Davis Pro-D Temperature Zener diode Rotational speed AC frequency Current LEM-HT-200-SBD hall effect probe Voltage Data logger powered directly from Glasshouse battery bank

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

  • Existing wind power

system

  • Data logging

equipment

Wiring diagram.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

  • 18,835 samples reduced

to 13,438

Filtering the data.

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Final power curve.

50 100 150 200 250 300 350 2 4 6 8 10 12 14 16 18 20 Normalised Power (W) Wind Speed (m/s) 50 100 150 200 250 300 350 2 4 6 8 10 12 14 16 18 20 Normalised Power (W) Wind Speed (m/s)

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Annual energy production.

200 400 600 800 1000 1200 1400 2 4 6 8 10 12 Energy (kWh) Wind Speed (m/s) AEP AEPdesign

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Analysis.

100 200 300 400 500 600 700 800 900 1000 50 100 150 200 250 300 5 10 15 20 25

  • No. Data Points

Normalised Power (W) Wind Speed (m/s) Power Curve Hosman 2012

  • No. Data Points
  • Min. No. Data Points for IEC 61400-12-1
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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Power coefficient.

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 50 100 150 200 250 300 5 10 15 20 25 Cp Normalised Power (W) Wind Speed (m/s) Power Curve Cp Scatter Cp Hosman 2012 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 50 100 150 200 250 300 5 10 15 20 25 Cp Normalised Power (W) Wind Speed (m/s)

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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

Questions?

  • Thanks for listening!
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12th-14th September 2012 | 8th PhD Seminar on Wind Energy in Europe | Jon Sumanik-Leary | jon.leary@sheffield.ac.uk

  • 1. Piggott, H., A Wind Turbine Recipe Book

2009, Scoraig, Scotland: Scoraig Wind Electric.

  • 2. IEC, Wind Turbines, in Part 12-1: Power

Performance Measurements of Electricity Producing Wind Turbines 2005.

  • 3. Hosman, N., Performance Analysis and

Improvement of a Small Locally Produced Wind Turbine for Developing Countries, in Faculty of Aerospace Engineering 2012, TU Delft.

References.