A nonlinear extended state observer for sensorless IPMSM drives with optimized gains

Tianru Zhang; Zhuang Xu; Chris Gerada

doi:10.1109/TIA.2019.2959537

A nonlinear extended state observer for sensorless IPMSM drives with optimized gains

Tianru Zhang, Zhuang Xu^*, Chris Gerada

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

A nonlinear third-order extended state observer (TESO) is proposed for the rotor position and speed estimation for sensorless interior permanent magnet synchronous motor drives. The disturbance observation bandwidth of the proposed observer is expanded by deploying a gain optimization method. The measurement noise excited in the control loop is suppressed effectively by substituting the previous high gain configuration. Experimentally, both the steady-state and transient performance of the TESO are verified on testing rigs. In comparison with the performance of a conventional linear extended state observer, the TESO has a better capability of disturbance observation and noise suppression in a wide operating range.

Original language	English
Article number	8932537
Pages (from-to)	1485-1494
Number of pages	10
Journal	IEEE Transactions on Industry Applications
Volume	56
Issue number	2
DOIs	https://doi.org/10.1109/TIA.2019.2959537
Publication status	Published - 1 Mar 2020
Externally published	Yes

Keywords

Bandwidth expansion
extended state observer (ESO)
gain optimization
noise suppression
sensorless interior permanent magnet synchronous motor (IPMSM) drives

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10.1109/TIA.2019.2959537

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title = "A nonlinear extended state observer for sensorless IPMSM drives with optimized gains",

abstract = "A nonlinear third-order extended state observer (TESO) is proposed for the rotor position and speed estimation for sensorless interior permanent magnet synchronous motor drives. The disturbance observation bandwidth of the proposed observer is expanded by deploying a gain optimization method. The measurement noise excited in the control loop is suppressed effectively by substituting the previous high gain configuration. Experimentally, both the steady-state and transient performance of the TESO are verified on testing rigs. In comparison with the performance of a conventional linear extended state observer, the TESO has a better capability of disturbance observation and noise suppression in a wide operating range.",

keywords = "Bandwidth expansion, extended state observer (ESO), gain optimization, noise suppression, sensorless interior permanent magnet synchronous motor (IPMSM) drives",

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N2 - A nonlinear third-order extended state observer (TESO) is proposed for the rotor position and speed estimation for sensorless interior permanent magnet synchronous motor drives. The disturbance observation bandwidth of the proposed observer is expanded by deploying a gain optimization method. The measurement noise excited in the control loop is suppressed effectively by substituting the previous high gain configuration. Experimentally, both the steady-state and transient performance of the TESO are verified on testing rigs. In comparison with the performance of a conventional linear extended state observer, the TESO has a better capability of disturbance observation and noise suppression in a wide operating range.

AB - A nonlinear third-order extended state observer (TESO) is proposed for the rotor position and speed estimation for sensorless interior permanent magnet synchronous motor drives. The disturbance observation bandwidth of the proposed observer is expanded by deploying a gain optimization method. The measurement noise excited in the control loop is suppressed effectively by substituting the previous high gain configuration. Experimentally, both the steady-state and transient performance of the TESO are verified on testing rigs. In comparison with the performance of a conventional linear extended state observer, the TESO has a better capability of disturbance observation and noise suppression in a wide operating range.

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KW - extended state observer (ESO)

KW - gain optimization

KW - noise suppression

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A nonlinear extended state observer for sensorless IPMSM drives with optimized gains

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Keywords

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