A novel direct field‐oriented control strategy for fault‐tolerant control of induction machine drives based on EKF
| Autor: | Rahemeh Tabasian, Mohammad Jannati, Mahmood Ghanbari, Abdolreza Esmaeli |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Stator Computer science Applications of electric power 020208 electrical & electronic engineering Control (management) Fault tolerance 02 engineering and technology Fault (power engineering) 01 natural sciences law.invention TK4001-4102 Induction machine Extended Kalman filter Control theory law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Torque Electrical and Electronic Engineering |
| Zdroj: | IET Electric Power Applications, Vol 15, Iss 8, Pp 979-997 (2021) |
| ISSN: | 1751-8679 1751-8660 |
| Popis: | This article presents a novel Direct Field‐Oriented Control (DFOC) strategy for Fault‐Tolerant Control (FTC) of wye‐connected 3‐Phase Induction Machine (3‐PIM) drives under the stator winding open‐phase failure. In the proposed control strategy, instead of flux measurement, an Extended Kalman Filter (EKF) for flux estimation is used. The introduced controller with minor modifications can be used during normal and stator winding open‐phase failure conditions. With the proposed DFOC system, the speed and torque pulsations that normally happen during the open‐phase failure can be reduced. The performances of the proposed EKF‐based DFOC strategy and the conventional control strategy for a faulted machine using simulations and experiments under different operation conditions are compared. Simulation and experimental results demonstrated an important improvement in speed and torque pulsations through this type of fault. Results also confirmed the superiority of the proposed EKF‐based DFOC scheme over the conventional control scheme to balance the faulted machine phase currents. |
| Databáze: | OpenAIRE |
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