Dernière édition Attention: Le pdf pèse environ 17 - BFH-TI - Berner ...

BIBEBUVABSc en Électricité et systèmes de communicationSolar Ship MPPTMechatronik / Thesis advisor: Prof. Dr. Andrea VezziniExpert: Peter BaumannProject partner: Solar Ship (www.solarship.com), Canada, TorontoSolar Ship, a Canadian company, is developing a new system that could revolutionize the concept of airtransport: flying with the energy of the sun! Nowadays it is no longer an utopia, the idea of traveling onlywith solar energy. We want to contribute to this work by designing and constructing a part of this airplane.The Solar Ship MPPT project is what best brings together all the knowledge acquired during our training atthe BFH. Technology, efficiency and ecology. These are three words which we recently heard very oftenand which are the basis of our bachelor thesis.Simone Baragiolabaragiolas@gmail.comNabil Elbadryn.elbadry@hotmail.comSolarship conceptThe solar ship is an eco-friendly andcompact means of transport. Currentlythere are many aircrafts thathave a good capacity of transportbut not all aircrafts are able to accessremote areas and land in smallspaces. Solar Ship instead is!Its wing-ship design allows for shorttake-off and landing (STOL), for exampleon a soccer field. This creativedesign also provides a largesurface area for solar panels, allowinglong and self-sufficient range.The main utility of the Solar Ship isthe transport of aid supplies, due toits ability to land in areas affectedby natural disasters and in underdevelopedregions. Other secondaryactivities are the monitoring ofprotected natural areas or, for example,tourist travels and advertisingof products.BackgroundThe sun does not reach the earth’ssurface constantly. For this reason,the energy received by solar panelsis constantly changing. The poweroutput has a peak, which is preciselycalled MPP, Maximum PowerPoint. The purpose of this project isto build a MPPT, a tracker that alwaysworks to this point. The resultwe want to achieve is an optimalbattery charge and a maximum efficiencyof electric motors. The initialconditions are the output powerof 2kW, the output voltage from160V to 200V and the input voltagevarying between 80V and 130V. Theresulting circuit is a DC/DC converterthat must be able to raise thevoltage adapting the current. Oneimportant factor is the electrical efficiency.To improve the flight conditions,we must create a circuit withvery low power losses. In order toachieve this, we need the best componentson the market, a properdesign of the power circuit and alow energy consumption of the controllogic.RealizationThe heart of the DC / DC converteris formed by multiple Boost Converters.In total we included twodual interleaved Boost Converters,which are handled separately. Inthis way we can implement a favorableenergy consumption and agood redundancy in case of damages.The control circuit is carriedout with two 32-bit microcontrollers.These processors manage thepower blocs and the communicationvia CAN. The production processconsisted of the followingsteps. After an initial planning, weperformed multiple simulations inMatlab/Simulink and PLECS. Thenwe moved on to the practical implementationof hardware and software.Finally we commissioned aprototype.MPPT prototypeSolar Ship100 ti.bfh.ch