A method to reduce DC-link voltage fluctuation of PMSM drive system with reduced DC-link capacitor

DOI

10.2991/aest-16.2016.122How to use a DOI?

Keywords

DC-link capacitor; permanent magnet synchronous motor (PMSM); power injection; voltage fluctuation; voltage source inverter (VSI).

Abstract

The reduction of the dc-link capacitance in the motor drive makes it possible to improve the system power density and lower the system cost. However, this can lead to relatively high dc-link voltage fluctuation, especially the sixth harmonic component. To serve the purpose of enhancing the dc-link voltage quality, a parameter-insensitive control method was proposed in this paper. The proposed method shapes the sixth harmonic component of the dc-link current in phase with that of the inductor current by the HF power injection technology. Since this practice can reduce the difference between these two sixth harmonic components, the sixth harmonic component of the dc-link voltage can be reduced as well. The simulation results show that the proposed method not only improves the ripple characteristic of dc-link voltage, but also achieves the aim of PMSM speed regulation.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ke Li
AU  - Yi Wang
AU  - Hong Wang
AU  - Danyang Bao
PY  - 2016/11
DA  - 2016/11
TI  - A method to reduce DC-link voltage fluctuation of PMSM drive system with reduced DC-link capacitor
BT  - Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
PB  - Atlantis Press
SP  - 918
EP  - 926
SN  - 1951-6851
UR  - https://doi.org/10.2991/aest-16.2016.122
DO  - 10.2991/aest-16.2016.122
ID  - Li2016/11
ER  -