Identification of Flux Maps at Constant Speed for Synchronous Motors
Loading...
URL
Journal Title
Journal ISSN
Volume Title
Sähkötekniikan korkeakoulu |
Master's thesis
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Authors
Date
2017-05-22
Department
Major/Subject
Electrical Drives
Mcode
S3016
Degree programme
AEE - Master’s Programme in Automation and Electrical Engineering (TS2013)
Language
en
Pages
6+45
Series
Abstract
The accurate identification of flux linkages and inductances play a vital role in developing high-performance control methods for synchronous motors (SMs). In this thesis, the identification of flux maps of SMs at constant speed is done. The aim of this thesis is to achieve look-up tables of flux linkages as a function of machine currents. Simulation are performed on a 6.7-kW synchronous reluctance motor (SyRM). The current controlled SyRM, operating at constant speed, is fed with current sequences and the corresponding voltages are calculated. By using these calculated voltages, the motor flux linkages are identified and stored in the form of look-up tables. The iron losses and stator resistance variation are compensated during the identification process. Theses linkage look-up tables can be used as a benchmark for testing different saturation models of synchronous motors. From these look-up tables, the information about motor inductances can be obtained which can be used to fully exploit the motor torque and speed range by determining various control strategies such as the maximum torque per ampere (MTPA) and maximum torque per volt (MTPV).Description
Supervisor
Hinkkanen, MarkoThesis advisor
Awan, Hafiz Asad AliKeywords
flux maps, saturation, look-up tables, identification, synchronous reluctance motors, constant speed