Abstract
Abstract:
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.
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 language | English |
|---|---|
| Pages (from-to) | 1259-1267 |
| Journal | IET Power Electronics |
| Volume | 10 |
| Issue number | 11 |
| Early online date | 5 Jun 2017 |
| DOIs | |
| Publication status | Published - 9 Sept 2017 |
| Externally published | Yes |
Keywords
- Bluetooth
- condition monitoring
- electric machines
- energy harvesting
- instrumentation
- magnetic fields
- power supplies to apparatus
- rectifiers