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Fault Tolerant Sensorless Control Strategy With Multi-States Switching Method for In-Wheel Electric Vehicle
- Source :
- IEEE Access, Vol 9, Pp 61150-61158 (2021)
- Publication Year :
- 2021
- Publisher :
- IEEE, 2021.
-
Abstract
- The in-wheel electric vehicle with distributed drive units has better stability and flexibility than traditional centralized drives, but may encounter a higher failure rate due to additional actuators and sensors, especially that the faults of the wheel-side position sensor make motor torque out of control. To overcome this problem, a fault-tolerant control strategy with a multi-states switching method is proposed. The strategy judges the sensor failure by verifying redundant speed information, realizes sensorless control schemes by flux-observer based algorithm in high-speed range and I-F control algorithm in low-speed range with low acoustic noise, and applies adaptive transition process between different control schemes. To pursuit high stability, the signal-to-noise analysis for fault judgment due to sensorless estimation accuracy is discussed. Meanwhile, the principle of I-F resonant oscillations during the transition process is initially deduced in detail, and the conclusion of stability condition is obtained. Finally, the influence of system parameters on resonance performance is analyzed by simulation, and the effectiveness and reliability of the proposed strategy for the risk-controlling process are verified by experiments.
- Subjects :
- business.product_category
General Computer Science
Computer science
multi-states switching
02 engineering and technology
Fault (power engineering)
I-F resonant oscillations
Reliability (semiconductor)
0203 mechanical engineering
Control theory
Electric vehicle
0202 electrical engineering, electronic engineering, information engineering
Torque
General Materials Science
position sensor failure
020208 electrical & electronic engineering
General Engineering
Process (computing)
020302 automobile design & engineering
Failure rate
Fault tolerance
In-wheel permanent magnet synchronous motor
fault-tolerant control
TK1-9971
Electrical engineering. Electronics. Nuclear engineering
business
Position sensor
Subjects
Details
- Language :
- English
- ISSN :
- 21693536
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- IEEE Access
- Accession number :
- edsair.doi.dedup.....29a4541be111ef9cbbd1d1f6c0fd8718