Controller-Inverter for Sensorless Permanent Magnet Synchronous Motors: Application in Onboard Electric Powertrain for Uphill Propulsion in Downhill Mountain Biking
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
This thesis demonstrates a practical implementation of a sensorless permanent magnet synchronousmotor (PMSM) drive for vehicle propulsion. The main design parameters and overall properties of themotor drive are derived for the case of an on-board electric powertrain as a substitute to the lift shuttle indownhill (DH) mountain biking.The theory behind field oriented control (FOC) for sensorless PMSMs is analyzed in some detail.Controller-inverter hardware and software are designed and prototyped in accordance with the deriveddesign parameters. Initial tuning and testing in a test bench environment is described. The powertrain isfinally installed on a test bike and tested on an incline. It is found that the performance of the controllerinvertercomplies with the target design parameters.
Place, publisher, year, edition, pages
2012. , 55 p.
EES Examensarbete / Master Thesis
field oriented control, permanent magnet synchronous motor, sensorless control, electric vehicle
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-105483OAI: oai:DiVA.org:kth-105483DiVA: diva2:571104
Master of Science - Electric Power Engineering
Nee, Hans-Peter, Professor