Control of induction motor drives equipped with small DC-link capacitance

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
Conference article in proceedings
This publication is imported from Aalto University research portal.
View publication in the Research portal
View/Open full text file from the Research portal
Date
2007-09-02
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
10
Series
12th European Conference on Power Electronics and Applications (EPE2007), European Conference on Power Electronics and Applications
Abstract
The paper deals with control of induction motor drives equipped with a diode rectifier and a small DC-link capacitance. Neither an AC choke nor a DC choke is used. It is necessary to use DC-link stabilization control if the mains inductance is not very low. Conventional DC-link stabilization controllers rely on the current controller. If no input choke is used, however, the natural frequency of the DC link is higher than the current-control bandwidth, and the conventional stabilization methods cannot be used. This paper proposes a control algorithm based on direct manipulation of the stator voltage reference. Furthermore, a recently proposed field-weakening controller is modified to better suit the oscillating DC-link voltage. Design recommendations for the proposed scheme are presented. Simulation results of a 110-kW drive show that the proposed scheme stabilizes the DC link and the dynamic performance is comparable with that of the conventional drive.
Description
Keywords
control of drive, converter control, induction motor
Other note
Citation
Hinkkanen , M , Harnefors , L & Luomi , J 2007 , Control of induction motor drives equipped with small DC-link capacitance . in 12th European Conference on Power Electronics and Applications (EPE2007) . European Conference on Power Electronics and Applications , European Conference on Power Electronics and Applications , Aalborg , Denmark , 02/09/2007 . https://doi.org/10.1109/EPE.2007.4417763