Vector control of unbalanced 3-phase im using forward and backward components
In some industries, continuous operation of 3-phase induction motors (IMs) even under faults until the scheduled maintenance time is essential. Conventional control techniques such as field-oriented control (FOC) cannot be used to control faulty IMs since this will result in significant oscillations...
Saved in:
Main Authors: | , |
---|---|
Format: | Article |
Published: |
Turkiye Klinikleri Journal of Medical Sciences
2017
|
Subjects: | |
Online Access: | http://eprints.utm.my/id/eprint/75554/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85017364794&doi=10.3906%2felk-1404-545&partnerID=40&md5=0d7b7cc4a7d1f29d13b738712cf73aee |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | In some industries, continuous operation of 3-phase induction motors (IMs) even under faults until the scheduled maintenance time is essential. Conventional control techniques such as field-oriented control (FOC) cannot be used to control faulty IMs since this will result in significant oscillations in the speed and torque. Consequently, a new control approach must be developed for improving IM performance during fault conditions. This paper presents a method for vector control of 3-phase IMs under open-phase faults. The main advantage of this control scheme is its ability to handle not only one phase but also two phases of open-phase fault conditions. When applying this control technique to a faulty machine, only minor changes to the parameters used in the equations are needed and the conventional FOC algorithm used for healthy 3-phase IMs can still be used. In this paper, simulation and experimental results are presented to study the effectiveness of the proposed technique to control both healthy and faulty 3-phase IMs. The results show that the proposed technique reduces electromagnetic torque pulsations during open-phase fault conditions. |
---|