High‐frequency electric‐motor modelling for conducted CM current prediction in adjustable speed drive system. Issue 7 (3rd May 2018)

• Record Type: Journal Article
• Authors: Bi, Chuang; Jia, Kelin; Wu, Yingzhe; Dong, Liang; Li, Hui; Yao, Weizheng; Liu, Gang; Zhang, Hailong
• Is Part Of: IET power electronics. Volume 11:Issue 7(2018)
• Page Start: 1257
• Page End: 1265
• Publication Date: 2018-05-03
• Subjects: variable speed drives -- machine control -- PWM invertors -- frequency‐domain analysis -- permanent magnet motors -- invertors -- synchronous motors; high‐frequency electric‐motor modelling -- conducted CM current prediction -- adjustable speed drive system -- novel high‐frequency three‐phase -- permanent magnet synchronous motor model -- common‐mode current -- CM voltage -- pulse‐width modulation inverter‐fed adjustable speed drive systems -- measured CM impedance -- vector fitting method -- experimental impedance -- 3 kW PMSM -- star‐winding connection -- frequency range -- 100 Hz–10 MHz -- frequency‐domain analysis -- circuit model -- frequency 100.0 Hz to 10.0 MHz -- power 3.0 kW; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2017.0648
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : This study presents a novel high‐frequency three‐phase permanent magnet synchronous motor (PMSM) model to predict the common‐mode (CM) current and CM voltage in a pulse‐width modulation inverter‐fed adjustable speed drive systems. Parameters of the model are calculated based on the measured CM impedance, applying vector fitting method. The model‐calculated CM impedance is compared with the experimental impedance measured on a 3 kW PMSM with the star‐winding connection, which has shown considerable accuracy at a frequency range of 100 Hz–10 MHz. The frequency‐domain analysis of CM voltage and CM current is then predicted by using the proposed circuit model in MATLAB/Simulink, which gives good agreement between calculated and the measured results.