A Robust Complex Vector PI Current Controller With Deadbeat Response for PMSM Drives

Junkai Wen

doi:10.1109/TIE.2024.3482013

A Robust Complex Vector PI Current Controller With Deadbeat Response for PMSM Drives

2024-01-01

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DOI：10.1109/TIE.2024.3482013

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Permanent magnet synchronous motors (PMSMs) require high performance digital current controllers to implement high-precision industrial applications. To improve overall performance, including transient, steady-state, robustness performance, this article proposes a robust complex vector proportional-integral (PI) current controller. The framework of the controller is designed in three directions: dynamic response, disturbance rejection, and stability. Moreover, aiming at further eliminating the impact of parameter mismatches on the performance of the controller, a complex vector current estimator is proposed. By adjusting the designed parameters, the controller can not only achieve a deadbeat response, but also possess strong disturbance rejection ability and stability. The accuracy of the current estimator and the effectiveness of the proposed PI controller are verified through experimental results.

Keyword:

Deadbeat response

internal model control (IMC)

PI current controller

permanent magnet synchronous motor (PMSM)

Deadbeat response

internal model control (IMC)

PI current controller

permanent magnet synchronous motor (PMSM)

A Robust Complex Vector PI Current Controller With Deadbeat Response for PMSM Drives

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