<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The paper presents the sensorless five-phase induction motor drive implementation with an inverter output filter with third harmonic injection. For the sensorless operation, the required observers are presented for the first and third harmonics with consideration of the inverter output filter. Moreover, the interaction of the observers and the control system is capable to handle a deactivation of one or two phases, which improves the reliability of the complete drive system. A new idea of online open-phase fault detection is presented based on the frequency analysis of the estimated observer variables. The test setup, fault operation capabilities and an experimental verification of the proposed fault detection method are presented in the paper.</p></abstract>

The paper presents the sensorless five-phase induction motor drive implementation with an inverter output filter with third harmonic injection. For the sensorless operation, the required observers are presented for the first and third harmonics with consideration of the inverter output filter. Moreover, the interaction of the observers and the control system is capable to handle a deactivation of one or two phases, which improves the reliability of the complete drive system. A new idea of online open-phase fault detection is presented based on the frequency analysis of the estimated observer variables. The test setup, fault operation capabilities and an experimental verification of the proposed fault detection method are presented in the paper.

Open-Phase Fault Detection Method for Sensorless Five-Phase Induction Motor Drives with an Inverter Output Filter

Faculty of Electrical and Control Engineering

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The paper presents the sensorless five-phase induction motor drive implementation with an inverter output filter with third harmonic injection. For the...

Open-Phase Fault Detection Method for Sensorless Five-Phase Induction Motor Drives with an Inverter Output Filter

Published Online: Nov 26, 2019

Page range: 191 - 202

Received: Jul 31, 2018

Accepted: Jan 18, 2019

DOI: https://doi.org/10.2478/pead-2019-0004

Keywords
Five-phase induction motor, Inverter output filter, Open-phase fault detection

© 2019 Patryk Strankowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Open-Phase Fault Detection Method for Sensorless Five-Phase Induction Motor Drives with an Inverter Output Filter

Published Online: Nov 26, 2019

Page range: 191 - 202

Received: Jul 31, 2018

Accepted: Jan 18, 2019

DOI: https://doi.org/10.2478/pead-2019-0004

KeywordsFive-phase induction motor, Inverter output filter, Open-phase fault detection

© 2019 Patryk Strankowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Five-phase induction motor, Inverter output filter, Open-phase fault detection