Defesa de Dissertação de Mestrado – Felippe Schmoeller da Roza – 11/06/2018
11/06/2018 17:20
| Defesa de Dissertação de Mestrado | ||
| Aluno | Felippe Schmoeller da Roza | |
| Orientador
Coorientador |
Prof. Alexandre Trofino Neto, Dr. – DAS/UFSC
Prof. Ivo Barbi, Dr. – PPGEAS/UFSC |
|
| Data | 11/06/2018 (segunda-feira) – 14h00
Sala PPGEAS II (piso inferior) |
|
| Banca | Prof. Alexandre Trofino Neto, Dr. – Presidente – DAS/UFSC;
Prof. Carlos Illa Font, Dr. – UTFPR; Prof. Daniel Juan Pagano, Dr. – DAS/UFSC; Prof. Marcelo de Lellis Costa de Oliveira, Dr. – DAS/UFSC. |
|
| Título | A Small Wind Turbine Design for Supplying Energy to the On-Board Control Unit of an Awe System | |
| Abstract: This master thesis deals with the design of a wind power system devel- oped to provide energy to the control pod of a pumping kite system, one of the most popular AWE (Airborne Wind Energy) configurations so far. The control pod is the unit responsible for manipulating the airfoil steer tethers in order to control its flight. Having a system to charge the batteries embedded into the control pod is still one of the challenges that withstands against this technology to become a com- mercially viable product. Such charging system would allow to build a pumping kite prototype that can operate continuously and perform long term experiments to attest its robustness. This work presents the design of all elements used to build the developed wind turbine, begin- ning with the rotor, the element that converts the wind kinetic energy into mechanical energy, the generator, responsible for converting the mechanical energy into electric power, the rectifier and the DC-DC converter, respectively responsible to rectify the generator three-phase sinusoidal output voltage into DC voltage and control the rectified volt- age, a battery storage system and the sensors needed to operate the system. Besides that, three maximum power point tracking (MPPT) methods are shown: optimal tip-speed ratio control (OTSR), power signal feedback (PSF) and perturb and observe (P&O). This work also deals with the design of further elements necessary to the experimen- tal tests realization, such as an acquisition board used to measure the most important quantities and implement the converter control. To al- low the realization of simulation tests a method that uses experimental data and the least squares algorithm to model the rotor is proposed. Methods to model the other system components are also discussed. OTSR and PSF MPPT methods were evaluated by using simulation models. Experiments with the built prototype were conducted in a wind tunnel and experimental results obtained with the P&O MPPT method are presented. | ||
