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| Content Provider | IET Digital Library |
|---|---|
| Author | Trejo, Diego Rivelino Espinoza Delgado, Daniel Ulises Campos Bossio, Guillermo Bárcenas, Ernesto Díez, José Enrique Hernández Cordero, Luis Felipe Lugo |
| Abstract | In this study, a new model-based fault detection and isolation (FDI) strategy is proposed for field-oriented control (FOC) induction motor (IM) drives. Actuator faults are addressed, and specifically, single open-circuit faults are considered in this study. The residual signals are synthesised by taking the resulting closed-loop dynamics when a FOC strategy is applied, that is, the residuals are referenced to the synchronous reference frame (dqe -coordinates), which are generated by using a bank of variable structure observers to obtain a robust FDI scheme. Thus, subsystems sensitive to a specific fault, but decoupled from other faults are obtained in a natural way, where only two stator currents and the mechanical position are required for fault isolation purposes. Residual evaluation is carried out in the stator reference frame (dq-coordinates) for the IM model, where the residual direction (angle) is employed to isolate a fault in each one of the six power switches in a voltage source inverter. In addition, the observer FDI scheme can be combined with a fault re-configuration strategy in order to improve the reliability of the motor drive. Experimental results are illustrated for a three-phase 3/4 HP IM drive at different reference frequencies and load torques with single open-circuit faults that verify the ideas presented in this work. |
| Starting Page | 869 |
| Ending Page | 877 |
| Page Count | 9 |
| ISSN | 17554535 |
| Volume Number | 6 |
| e-ISSN | 17554543 |
| Issue Number | Issue 5, May (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/6/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2012.0256 |
| Journal | IET Power Electronics |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Actuator Fault Asynchronous Machine Closed Loop System Closed-loop Dynamics Control of Electric Power System Dq-coordinates Drive Fault Diagnosis Fault Diagnosis Scheme Fault Reconfiguration Strategy FDI Strategy Field-oriented Control Induction Motor Drive FOC-IM Drive Induction Motor Drive Invertors Load Torques Machine Vector Control Mechanical Position Model-based Fault Detection And Isolation Strategy Modelling And Identification Multivariable Control System Observers Open-circuit Fault Power 3 Hp Power 4 Hp Power Converter Power Supplies to Apparatus Power Switch Reliability Residual Signal Robust Observer FDI Scheme Simulation Stator Current Stator Reference Frame Three-phase IM Drive Variable Structure Observers Variable Structure System Voltage Source Inverter |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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