Energy harvesting and wireless data transmission system for rotor instrumentation for electrical machines

Danilo LIano, Salman Abdi Jalebi, Mark Tatlow, Ehsan Abdi, Richard McMahon

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


It is desirable to measure rotor quantities such as currents and temperatures in an electrical machine for design verification and condition monitoring purposes. A Bluetooth module which sends data from the rotor was previously reported in literature, but this module was battery powered, and therefore the duration of the tests was limited. This study presents a solution to this problem by developing a rotor-mounted power supply system which can harvest energy from the magnetic field inside the machine, by fixing an external loop to the rotor and making use of the induced voltage in the loop. A full-bridge rectifier, boost converter and battery charging module were developed to supply sufficient power to a bespoke Bluetooth transmission system and associated sensor circuitry.
Original languageEnglish
Pages (from-to)1259-1267
Number of pages9
JournalIET Power Electronics
Issue number11
Early online date5 Jun 2017
Publication statusPublished - 9 Sep 2017

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