### Abstract

The paper discusses the problem of estimating the rotor time constant of the induction motor. Estimation is done considering that the stationary frame fluxes are available. The fluxes are obtained using a voltage model observer - the paper assumes that the stator resistance and the magnetizing inductance of the motor are known, therefore, the fluxes are accurate. The inverse of the rotor time constant is estimated with a MRAS-type sliding mode observer that uses the incoming fluxes to construct the feedback terms; it also uses a speed signal at the input. Since the speed may be inaccurate, this affects the estimation process. The paper shows that the error in the estimated rotor time constant can be reduced by operating the induction motor with a low ratio of i_{d} to i_{q}. The estimation method involves only simple mathematics and is not computationally intensive. The theoretical claims of the paper are supported with simulations and experiments.

Original language | English (US) |
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Title of host publication | Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society |

Publisher | IEEE Computer Society |

Pages | 2748-2753 |

Number of pages | 6 |

ISBN (Electronic) | 9781509034741 |

DOIs | |

State | Published - Dec 21 2016 |

Event | 42nd Conference of the Industrial Electronics Society, IECON 2016 - Florence, Italy Duration: Oct 24 2016 → Oct 27 2016 |

### Publication series

Name | IECON Proceedings (Industrial Electronics Conference) |
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### Other

Other | 42nd Conference of the Industrial Electronics Society, IECON 2016 |
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Country | Italy |

City | Florence |

Period | 10/24/16 → 10/27/16 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Control and Systems Engineering
- Electrical and Electronic Engineering

### Cite this

*Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society*(pp. 2748-2753). [7793350] (IECON Proceedings (Industrial Electronics Conference)). IEEE Computer Society. https://doi.org/10.1109/IECON.2016.7793350

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*Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society.*, 7793350, IECON Proceedings (Industrial Electronics Conference), IEEE Computer Society, pp. 2748-2753, 42nd Conference of the Industrial Electronics Society, IECON 2016, Florence, Italy, 10/24/16. https://doi.org/10.1109/IECON.2016.7793350

**Design of a MRAS-type sliding mode observer for estimation of the rotor time constant of the induction motor.** / Comanescu, Mihai.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Design of a MRAS-type sliding mode observer for estimation of the rotor time constant of the induction motor

AU - Comanescu, Mihai

PY - 2016/12/21

Y1 - 2016/12/21

N2 - The paper discusses the problem of estimating the rotor time constant of the induction motor. Estimation is done considering that the stationary frame fluxes are available. The fluxes are obtained using a voltage model observer - the paper assumes that the stator resistance and the magnetizing inductance of the motor are known, therefore, the fluxes are accurate. The inverse of the rotor time constant is estimated with a MRAS-type sliding mode observer that uses the incoming fluxes to construct the feedback terms; it also uses a speed signal at the input. Since the speed may be inaccurate, this affects the estimation process. The paper shows that the error in the estimated rotor time constant can be reduced by operating the induction motor with a low ratio of id to iq. The estimation method involves only simple mathematics and is not computationally intensive. The theoretical claims of the paper are supported with simulations and experiments.

AB - The paper discusses the problem of estimating the rotor time constant of the induction motor. Estimation is done considering that the stationary frame fluxes are available. The fluxes are obtained using a voltage model observer - the paper assumes that the stator resistance and the magnetizing inductance of the motor are known, therefore, the fluxes are accurate. The inverse of the rotor time constant is estimated with a MRAS-type sliding mode observer that uses the incoming fluxes to construct the feedback terms; it also uses a speed signal at the input. Since the speed may be inaccurate, this affects the estimation process. The paper shows that the error in the estimated rotor time constant can be reduced by operating the induction motor with a low ratio of id to iq. The estimation method involves only simple mathematics and is not computationally intensive. The theoretical claims of the paper are supported with simulations and experiments.

UR - http://www.scopus.com/inward/record.url?scp=85010028203&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85010028203&partnerID=8YFLogxK

U2 - 10.1109/IECON.2016.7793350

DO - 10.1109/IECON.2016.7793350

M3 - Conference contribution

AN - SCOPUS:85010028203

T3 - IECON Proceedings (Industrial Electronics Conference)

SP - 2748

EP - 2753

BT - Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society

PB - IEEE Computer Society

ER -