Development of a national 5kW aerogenerator

• Grant number: 02/08008-6
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: September 01, 2003
• End date: April 30, 2009
• Field of knowledge: Engineering - Aerospace Engineering - Aerodynamics
• Principal Investigator: Cassiano Nucci Paes Cruz
• Grantee: Cassiano Nucci Paes Cruz
• Company: Eletrovento Ltda. - ME

Abstract

The objective of this project is to develop a 5 kilowatt aerogenerator, the market potential for which is estimated at 70 thousand units in the country. The initial phase of the project will involve the technological development and prototype tests (proof of technical viability) of the two essential parts of the aerogenerator: the design for the propeller and the electricity generator. The second phase envisages the production of the best-in-class model for which the other parts of the wind generator will be designed, based on technology being developed by Eletrovento. In the area of aerodynamics, using WingAnalysis Plus software, all the surfaces of the blades will be designed in CAD. A prototype on a reduced scale will be built in fast-prototyping machines, since in real size it should measure around 6 meters in diameter. This prototype will be tried in the field for the collection of data on rotation curves and torque in relation to wind velocity. In the area of electric machines, a generator will be designed with permanent magnets with several poles (probably 18) so as to be efficient at low rotations (300 to 1000 rotations per minute), atypical for electric machines. A prototype will be built to be tested on a bench that has a variable speed motor which simulates the propeller action. Since the application of the generator is aimed mainly at charging batteries, an electronic power rectifier circuit and a tension regulator will also be designed and tested. (AU)