Observability analysis for speed sensorless induction motor drives with and without virtual voltage injection

Wei Sun; Dianguo Xu; Dong Jiang

doi:10.1109/TPEL.2018.2883589

Observability analysis for speed sensorless induction motor drives with and without virtual voltage injection

Wei Sun^*
, Dianguo Xu
, Dong Jiang

^*Corresponding author for this work

Huazhong University of Science and Technology
School of Electrical Engineering and Automation, Harbin Institute of Technology

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

32 Scopus citations

Abstract

For speed sensorless induction motor drives, the unobservable problem of rotor speed at low synchronous speed has not been solved yet. To obtain a unified observable condition, the local weak observability concept is used in this paper. Based on the result of analysis, virtual voltage injection method is proposed. With this method, the states of induction motor, including rotor speed, are locally weakly observable at zero synchronous. The stability of proposed method is proved by Lyapunov's stability theorem. Finally, the feasibility of proposed method is verified by experiments.

Original language	English
Article number	8546755
Pages (from-to)	9236-9246
Number of pages	11
Journal	IEEE Transactions on Power Electronics
Volume	34
Issue number	9
DOIs	https://doi.org/10.1109/TPEL.2018.2883589
State	Published - Sep 2019
Externally published	Yes

Keywords

Induction motor
robustness for motor parameter deviation
signal injection
speed sensorless drives

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10.1109/TPEL.2018.2883589

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title = "Observability analysis for speed sensorless induction motor drives with and without virtual voltage injection",

abstract = "For speed sensorless induction motor drives, the unobservable problem of rotor speed at low synchronous speed has not been solved yet. To obtain a unified observable condition, the local weak observability concept is used in this paper. Based on the result of analysis, virtual voltage injection method is proposed. With this method, the states of induction motor, including rotor speed, are locally weakly observable at zero synchronous. The stability of proposed method is proved by Lyapunov's stability theorem. Finally, the feasibility of proposed method is verified by experiments.",

keywords = "Induction motor, robustness for motor parameter deviation, signal injection, speed sensorless drives",

author = "Wei Sun and Dianguo Xu and Dong Jiang",

note = "Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

year = "2019",

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doi = "10.1109/TPEL.2018.2883589",

language = "英语",

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T1 - Observability analysis for speed sensorless induction motor drives with and without virtual voltage injection

AU - Sun, Wei

AU - Xu, Dianguo

AU - Jiang, Dong

PY - 2019/9

Y1 - 2019/9

N2 - For speed sensorless induction motor drives, the unobservable problem of rotor speed at low synchronous speed has not been solved yet. To obtain a unified observable condition, the local weak observability concept is used in this paper. Based on the result of analysis, virtual voltage injection method is proposed. With this method, the states of induction motor, including rotor speed, are locally weakly observable at zero synchronous. The stability of proposed method is proved by Lyapunov's stability theorem. Finally, the feasibility of proposed method is verified by experiments.

AB - For speed sensorless induction motor drives, the unobservable problem of rotor speed at low synchronous speed has not been solved yet. To obtain a unified observable condition, the local weak observability concept is used in this paper. Based on the result of analysis, virtual voltage injection method is proposed. With this method, the states of induction motor, including rotor speed, are locally weakly observable at zero synchronous. The stability of proposed method is proved by Lyapunov's stability theorem. Finally, the feasibility of proposed method is verified by experiments.

KW - Induction motor

KW - robustness for motor parameter deviation

KW - signal injection

KW - speed sensorless drives

UR - https://www.scopus.com/pages/publications/85057856559

U2 - 10.1109/TPEL.2018.2883589

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M3 - 文章

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JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 9

M1 - 8546755

ER -

Observability analysis for speed sensorless induction motor drives with and without virtual voltage injection

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Keywords

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