Weighting-Factorless Predictive Torque Control Scheme for Dual Inverter fed Open-End-Winding PMSM With Single DC Source

The conventional predictive torque control (PTC) of open-end-winding permanent magnet synchronous motor drive with single dc source deals with the problems of complex weighting factor tuning, higher ripples in zero sequence current (ZSC) and increased flux and torque ripples. To mitigate the above d...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2021-11, Vol.36 (11), p.12968-12978
Main Authors: Eshwar, Kusuma, Thippiripati, Vinay Kumar
Format: Article
Language:English
Subjects:
Cost function
D C motors
Electric potential
Flux
Inverters
Mathematical model
Permanent magnet synchronous motor drive (PMSM)
Permanent magnets
Predictive control
predictive torque control (PTC)
Ripples
Switches
Synchronous motors
three level voltage sources
Torque
Tuning
Voltage
Voltage control
Weighting
weighting factors (WF)
Winding
Zero sequence current
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The conventional predictive torque control (PTC) of open-end-winding permanent magnet synchronous motor drive with single dc source deals with the problems of complex weighting factor tuning, higher ripples in zero sequence current (ZSC) and increased flux and torque ripples. To mitigate the above drawbacks, an effective weighting-factorless PTC scheme is proposed. Initially, the ZSC objective of cost function is evaluated with three types of zero sequence voltages (ZSV) of the system that are available. The magnitude of ZSV corresponding to the minimized ZSC error is selected. Six or seven candidate voltage vectors are arranged in accordance with optimized ZSV. As the ZSC imposes high impact on torque and current performance, the selected candidate voltage vectors can be used to meet the torque and flux objective. To further eliminate the flux weighting-factor, an improved incremental merit-based scheme is proposed in this article. The weighting-factors tuning is avoided in the proposed PTC method which results in reduced ZSC and improved current performance in addition to the reduced ripples in flux and torque as well as lower computational burden. The effectiveness of the proposed PTC method is experimentally verified and compared with the existing PTC methods.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2021.3077665