Stator flux oriented sensorless DTFC for IPMSMs using pseudo‑random HF signal injection

Junlei Chen; Xiang Wu

Stator flux oriented sensorless DTFC for IPMSMs using pseudo‑random HF signal injection

Junlei Chen

Xiang Wu

Vol. 23, No. 12, pp. 1846-1855, Dec. 2023

10.1007/s43236-023-00685-1

Interior permanent magnet synchronous motor ∙

Stator flux orientated control

High-frequency noise reduction

Sensorless control

Abstract

In this article, a stator flux oriented sensorless control method is proposed for interior permanent magnet synchronous motor (IPMSM) drives based on the direct torque and flux control (DTFC) and pseudo-random high-frequency signal injection (PR-HFSI) in the zero-low speed range. The DTFC for IPMSMs is introduced briefly and the conventional high-frequency signal injection (HFSI) method, which requires an additional transformation, is also introduced. Then the stator flux oriented PR-HFSI is proposed comprising injection mode and rotor observation, with the aim of noise reduction and easy implementation. Furthermore, the high-frequency noise in HFSI and the mechanisms of noise suppression in PR-HFSI are analyzed based on current spectrums. Meanwhile, the optimal noise reduction frequency combination of n kinds frequency injections is also analyzed. Finally, the performance of the proposed stator flux oriented PR-HFSI method is confirmed with experiments on a 60 kW IPMSM test bench.

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Cite this article

[IEEE Style]

J. Chen and X. Wu, "Stator flux oriented sensorless DTFC for IPMSMs using pseudo‑random HF signal injection," Journal of Power Electronics, vol. 23, no. 12, pp. 1846-1855, 2023. DOI: 10.1007/s43236-023-00685-1.

[ACM Style]

Junlei Chen and Xiang Wu. 2023. Stator flux oriented sensorless DTFC for IPMSMs using pseudo‑random HF signal injection. Journal of Power Electronics, 23, 12, (2023), 1846-1855. DOI: 10.1007/s43236-023-00685-1.