Improved INFORM method by minimizing the inverter nonlinear voltage error effects

Xie, G.; Lu, K.; Dwivedi, Sanjeet Kumar; Rosholm, J.

doi:10.1109/WEMDCD.2015.7194528

Access Status

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Authors

Xie, G.

Lu, K.

Dwivedi, Sanjeet Kumar

Rosholm, J.

Date

2015

Type

Conference Paper

Metadata

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Citation

Xie, G. and Lu, K. and Dwivedi, S.K. and Rosholm, J. 2015. Improved INFORM method by minimizing the inverter nonlinear voltage error effects, pp. 188-194.

Source Title

Proceedings - 2015 IEEE Workshop on Electrical Machines Design, Control and Diagnosis, WEMDCD 2015

DOI

10.1109/WEMDCD.2015.7194528

ISBN

9781479989003

School

School of Electrical Engineering and Computing

URI

http://hdl.handle.net/20.500.11937/52772

Collection

Curtin Research Publications

Abstract

© 2015 IEEE.The INFORM (Indirect Flux detection by Online Reactance Measurements) method is regularly used for estimating the rotor position in PMSM sensorless drive systems at low speed and standstill. However, the estimation accuracy of the rotor position highly depends on how accurately the desired injection voltage vector may be produced. In this paper, a new method for generating the desired injection voltage vector is proposed. The nonlinear voltage error will be limited to one phase only, allowing an easy compensation. The performance of the INFORM method with the proposed voltage injection method is demonstrated experimentally. Comparison to the traditional voltage vector generation method is given as well.