Sensorless control over entire speed range for single inverter dual parallel interior permanent magnet synchronous motor drives

Hyung-Woo Lee; Byeong-Soo Kang; Kyo-Beum Lee; Jeongeon Oh

Sensorless control over entire speed range for single inverter dual parallel interior permanent magnet synchronous motor drives

Vol. 26, No. 4, pp. 806-817, Apr. 2026

10.1007/s43236-025-01269-x

SIDP IPMSM

Active damping controller

Extended back-EMF-Based sensorless control

I-F control

flux

Weakening control

Abstract

This paper proposes sensorless control of the entire speed region for a single inverter dual parallel (SIDP) interior permanent magnet synchronous motor (IPMSM) drive system. An active damping control method that adjusts the secondary motor torque to maintain synchronization with the main motor is adopted to address the instability of the SIDP IPMSM drive system. A sensorless control method using the extended back-electromotive force (EMF) is utilized for the SIDP IPMSM drive system in the middle- and high-speed regions. An I-F control method is employed to enhance stability during low-speed operation. Additionally, a flux-weakening control strategy is implemented to extend the operating speed range into the high-speed region. The effectiveness of the proposed sensorless and flux-weakening control methods for the SIDP IPMSM drive system are validated through experimental results.

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Cite this article

[IEEE Style]

H. Lee, B. Kang, K. Lee, J. Oh, "Sensorless control over entire speed range for single inverter dual parallel interior permanent magnet synchronous motor drives," Journal of Power Electronics, vol. 26, no. 4, pp. 806-817, 2026. DOI: 10.1007/s43236-025-01269-x.

[ACM Style]

Hyung-Woo Lee, Byeong-Soo Kang, Kyo-Beum Lee, and Jeongeon Oh. 2026. Sensorless control over entire speed range for single inverter dual parallel interior permanent magnet synchronous motor drives. Journal of Power Electronics, 26, 4, (2026), 806-817. DOI: 10.1007/s43236-025-01269-x.