Analysis of a Transverse Flux Machine with Regard to Operation of Energy Harvesting

Abstract:

Electric machines are replacing increasingly combustion engines as traction machine in modern vehicles. To monitor the behavior of the electric machines， sensors are needed. A major challenge is the electrical powering of the sensors on rotating parts of the machine. By using an energy harvester， parasitic energy from the electric machine， such as electromagnetic and kinetic， can be collected. The collected energy gets transformed into electric energy and used to power sensors. Additionally， a storage device can be integrated. To realize an energy harvester， a transverse flux machine has been investigated， focusing on the rotor of the machine. The goal for the energy harvester is to collect enough energy to power a temperature sensor with contactless data transfers via Bluetooth Low Energy. Therefore， the amount of energy that can be expected to be collected during operation and production when positioning the energy harvester on the rotor of the transverse flux machine is calculated.