High-Precision Harmonic Current Extraction for PMSM Based on Multiple Reference Frames Considering Speed Harmonics

Based on Multiple reference frames (MRF), this paper investigates high-precision harmonic current extraction for permanent magnet synchronous motor (PMSM), while taking the disturbance of speed harmonics into account. Firstly, the extraction error in MRF caused by speed harmonics is deduced and anal...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2023-10, Vol.70 (10), p.1-12
Main Authors: Yang, Jian, Zhou, Jingyang, Zhou, Hanbin, Yi, Feng, Song, Dongran, Dong, Mi
Format: Article
Language:English
Subjects:
Algorithms
Current harmonics extraction
Error analysis
Harmonics
multiple synchronous frames (MRF)
permanent magnet synchronous motor (PMSM)
Permanent magnets
Preprocessing
speed harmonics
Synchronous motors
variable forgetting factor recursive least squares method (VFF-RLS)
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:Based on Multiple reference frames (MRF), this paper investigates high-precision harmonic current extraction for permanent magnet synchronous motor (PMSM), while taking the disturbance of speed harmonics into account. Firstly, the extraction error in MRF caused by speed harmonics is deduced and analyzed, showing that the error is non-ignorable and detrimental. Secondly, a novel preprocessing of fundamental current reconstruction and elimination in MRF is proposed, which effectively suppresses the extraction error. Thirdly, a variable forgetting factor recursive least squares (VFF-RLS) algorithm is proposed for the fundamental current amplitude identification, which guarantees fast and accurate preprocessing. Furthermore, the above method parallelly resolves the conflict between rapid extracting and low steady-state fluctuation in MRF, which significantly enhances harmonic current extraction performance. The superiority and accuracy of the proposed algorithms are proved by experiments.  
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2022.3222661