Three-level NPC dual-buck inverter designed to safety-critical applications

Cordeiro, Armando; Fernao Pires, Vitor; Foito, Daniel

http://hdl.handle.net/10400.21/12221

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Authors

Cordeiro, Armando

Fernao Pires, Vitor

Foito, Daniel

Abstract(s)

This paper presents a three-phase three-level NPC (neutral point-clamped) Dual-Buck inverter topology suitable to increase fault-tolerant capability to safety-critical applications. Using the proposed topology, it is possible to achieve energy processing capability in case of several failure modes. The faulttolerant enhancements are a consequence of appropriate modifications in the control strategy and from redundancy of power devices to maintain the correct operation of the converter. The proposed control strategy adopted in the presented solution can also equalize the capacitor voltages automatically. Some simulation results are included in this study to confirm the validity of the theoretical study.

Keywords

Multilevel neutral-point-clamped Dual-buck inverter Reliability Redundancy Fault-tolerant Inverter failure

URI

http://hdl.handle.net/10400.21/12221

Citation

CORDEIRO, Armando; PIRES, Vítor Fernão; FOITO, Daniel – Three-level NPC dual-buck inverter designed to safety-critical applications. In 2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG). Setúbal, Portugal: IEEE, 2020. ISBN 978-1-7281-4218-0. Pp. 482-488