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A Real-Time Fault-Tolerant Control Approach to Ensure the Resiliency of a Self-Healing Multilevel Converter.
- Source :
-
Energies (19961073) . Jul2022, Vol. 15 Issue 13, p4721-N.PAG. 16p. - Publication Year :
- 2022
-
Abstract
- Ensuring service continuity in safety critical applications is crucial. In some of these applications, multilevel converters play a vital role. In this regard, this research work presents a self-healing fault-tolerant control approach to ensure the resiliency of a neutral-point clamped converter when a semiconductor component encounters an open circuit fault. The defective semiconductor can be a power switch or a clamping diode. By applying the proposed real-time fault-tolerance control, the rated output voltage and output current are restored during post-fault operation. Furthermore, the total harmonic distortion value of the output voltage during application of the real time self-healing control does not increase when compared with that during healthy operation. Since the realization of the proposed control strategy does not require any bidirectional switch, a fast transition between the healthy and fault-tolerant operation is accomplished. Moreover, the proposed structure can ensure service continuity in case of a fault event in the anti-parallel diodes, something which has been overlooked in previously conducted research works. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FAULT-tolerant control systems
*REAL-time control
Subjects
Details
- Language :
- English
- ISSN :
- 19961073
- Volume :
- 15
- Issue :
- 13
- Database :
- Academic Search Index
- Journal :
- Energies (19961073)
- Publication Type :
- Academic Journal
- Accession number :
- 157997814
- Full Text :
- https://doi.org/10.3390/en15134721