The electrical group develop and build all the devices that form the “conversion system”, starting from the generator and finishing with a Li battery pack. In particular we build the inverter unit, a device that manage the conversion between the three-fase output of the generator and the DC voltage of the battery pack. The electronic engineers of the team write the firmware for the MCU that controls the power flow through the boar.
The battery pack is made up of 120 lithium cells, each one capable to manage 2.5 Amps and have a nominal voltage of 3.7V, starting with a total capacity of 40 Ah. The energy engineers of our division, thanks to Matlab simulation, talk with mechanical division to make sure that the case of the battery pack ensure the properly ventilation, avoiding overheating phenomenon between single cells.
One of our most important project is to build ourselves the generator of the rotor that will be in PCB technology, in order to reduce its weight and the general encumbrance. Another important task of the division is to develop and build all the conditioning circuit for sensors and communication unit, that take place in the weather station of our wind turbine. In conclusion the electrical division take care of all the step of the generation process, to ensure the minimal loss through the conversion chain.
