IPMSM torque control method considering DC-link voltage variation and friction torque for EV/HEV applications

This paper proposes a PMSM torque control method considering DC-link voltage variations and friction torque. For EV/HEV applications, a two-dimensional look-up table (2D-LUT) is used for a current reference generation due to its stable and robust torque control performance. Conventionally, this 2D-L...

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Bibliographic Details
Published in2012 IEEE Vehicle Power and Propulsion Conference pp. 1063 - 1069
Main Authors Jung-Hyo Lee, Chung-Yuen Won, Byoung-Kuk Lee, Hyun-Bae Kim, Jei-Hoon Baek, Kyu-Bum Han, U-In Chung
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2012
Subjects
Integrated circuits
Inverters
Robustness
Table lookup
Torque
Torque control
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Summary:This paper proposes a PMSM torque control method considering DC-link voltage variations and friction torque. For EV/HEV applications, a two-dimensional look-up table (2D-LUT) is used for a current reference generation due to its stable and robust torque control performance. Conventionally, this 2D-LUT is established by a flux-torque table to overcome DC-link voltage variations. However, the flux table establishment is more complex than the speed table establishment. Moreover, one flux data reflects several speed conditions in variable DC-link voltage, friction torque cannot be considered by using the flux table. In this paper, a speed-torque 2D-LUT is used for a current reference generation. With this table, PMSM torque control is well achieved regardless of DC-link voltage variations by the proposed control method. Also, friction torque is compensated by a novel compensation block described on this paper.
ISBN:1467309532
9781467309530
ISSN:1938-8756
DOI:10.1109/VPPC.2012.6422502