Open‑fault diagnosis and tolerant control of a dual inverter fed open‑end winding interior permanent magnet synchronous motor

Hyung-Woo Lee; Kyo-Beum Lee

Open‑fault diagnosis and tolerant control of a dual inverter fed open‑end winding interior permanent magnet synchronous motor

Hyung-Woo Lee

Kyo-Beum Lee

Vol. 24, No. 7, pp. 1071-1080, Jul. 2024

10.1007/s43236-024-00854-w

Abstract

This paper proposes a diagnostic and fault-tolerant method for an open-fault condition in dual inverters with open-end winding interior permanent magnet synchronous motors (OEW-IPMSMs). Certain switch pairs show similar behavior in the output current in an open-fault condition due to the structural characteristics of the two-level dual inverter. This work presents a method for detecting open-fault conditions and ensuring a fault-tolerant operation. The proposed method is applied in dual inverters with isolated voltage sources for driving OEW-IPMSM. In the event of an open-fault condition, a pair of switches containing the faulty switch is identified based on the stator current. Subsequently, the switch with the open-fault condition is determined, and fault-tolerant control for a faulty switch is immediately performed through a single-mode operation using zero-voltage vectors. The effectiveness of the proposed detection and tolerant control method is confirmed through simulation and experimental results.

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Cite this article

[IEEE Style]

H. Lee and K. Lee, "Open‑fault diagnosis and tolerant control of a dual inverter fed open‑end winding interior permanent magnet synchronous motor," Journal of Power Electronics, vol. 24, no. 7, pp. 1071-1080, 2024. DOI: 10.1007/s43236-024-00854-w.

[ACM Style]

Hyung-Woo Lee and Kyo-Beum Lee. 2024. Open‑fault diagnosis and tolerant control of a dual inverter fed open‑end winding interior permanent magnet synchronous motor. Journal of Power Electronics, 24, 7, (2024), 1071-1080. DOI: 10.1007/s43236-024-00854-w.