Dept. Electrical and Computer Systems Engineering |
Power Electronics Group |
Specifications |
8 pole permanent magnet generator. |
Generator |
Cp = power coefficient of the blades TSR = blade tip speed ratio |
Power Coefficient vs Tip Speed Ratio |
Dept. Electrical and Computer Systems Engineering |
Power Electronics Group |
Temperature rise of generator with no moving air with phase current of 6.5±0.2 Arms. Ambient temperature =20.9C |
Temperature Rise of Generator |
Organigrow vertical axis turbine |
Blade Power at 9m/s Wind Speed |
Summary of Minimum Converter Specifications |
Design Item |
Minimum Target Requirement |
1. Manufacturing cost |
Parts cost of less than US$20 at high-volume production (approximately 100000 units/year) |
2. Complete package size |
A convenient shape with volume less than 2 dm3 (2 liters). |
3. Complete package weight |
Mass less than 3 kg. |
4. Output power capability |
Must be able to deliver 300W of energy into a 12V battery continuously. Must be able to deliver 900W of energy into a 12V battery for 60 seconds. |
5. Peak power rating |
600 W peak |
6. Improved overall efficiency curves
|
Efficiency higher than 90% for power level varying from 5% to 100%. |
7. Stand-by (tare) losses |
When the wind turbine is not producing power, the converter should shut down controllably. |