A New Dead-time Compensation Method Based on LMS Algorithm for PMSM

This paper presents a new dead-time compensation method for permanent-magnet synchronous motor (PMSM) at low speed. Based on least-mean-square (LMS) algorithm and combined with the traditional average voltage compensation method, the proposed method can determine the current polarity through extract...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1754; no. 1; pp. 12203 - 12208
Main Authors Zhu, Hongguan, Chen, Ying, Lei, Hongdan, Chen, Dongdong, Li, Zongwei
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2021
Subjects
Algorithms
Compensation
Electric potential
Low speed
Parameter robustness
Permanent magnets
Physics
Synchronous motors
Voltage
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ISSN1742-6588
1742-6596
1742-6596
DOI10.1088/1742-6596/1754/1/012203

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Summary:This paper presents a new dead-time compensation method for permanent-magnet synchronous motor (PMSM) at low speed. Based on least-mean-square (LMS) algorithm and combined with the traditional average voltage compensation method, the proposed method can determine the current polarity through extracting the fundamental current. Compared with traditional compensation methods, the proposed method can detect current polarity more accurately at low speed due to the narrower notch bandwidth. Moreover, this method is robust to motor parameters and easy to implement. The proposed method is simulated in a voltage-source inverter PMSM drive controlled by I/F and the results show that it meets the requirement of dead-time compensation and eliminates the influence of dead-time effect.
Bibliography:ObjectType-Conference Proceeding-1
SourceType-Scholarly Journals-1
content type line 14
ISSN:1742-6588
1742-6596
1742-6596
DOI:10.1088/1742-6596/1754/1/012203