A Simple Three-Degree-of-Freedom Digital Current Controller with Dead Beat Response for AC Machines

Xin Yuan; Christopher H.T. Lee

doi:10.1109/TIE.2021.3109540

A Simple Three-Degree-of-Freedom Digital Current Controller with Dead Beat Response for AC Machines

Xin Yuan, Christopher H.T. Lee

Research output: Journal article publication › Journal article › Academic research › peer-review

11 Citations (Scopus)

Abstract

Since current controllers are implemented digitally, digital current controllers need to be established for pursuing high performance alternating current (ac) machine drives. Considering to enhance the dynamic response, disturbance rejection and stability both, this article proposes a simple three-degree-of-freedom (3DOF) digital current controller. In the proposed structure, three needed coefficients have been theoretically designed, which stand for the dynamic response ability, disturbance rejection, and rejection of the instability caused by machine parameters mismatch, respectively. In addition, the proposed 3DOF current controller can own dead beat response characteristic with one-step delay compensation. Experimental results validate the effectiveness of the proposed 3DOF digital current controller in a ac machine drive test rig.

Original language	English
Pages (from-to)	7848-7858
Number of pages	11
Journal	IEEE Transactions on Industrial Electronics
Volume	69
Issue number	8
DOIs	https://doi.org/10.1109/TIE.2021.3109540
Publication status	Published - 1 Aug 2022

Keywords

Alternating current (AC) machine
dead beat response
digital current controller
three -degree-of-freedom (3DOF)

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

More information

10.1109/TIE.2021.3109540

Cite this

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abstract = "Since current controllers are implemented digitally, digital current controllers need to be established for pursuing high performance alternating current (ac) machine drives. Considering to enhance the dynamic response, disturbance rejection and stability both, this article proposes a simple three-degree-of-freedom (3DOF) digital current controller. In the proposed structure, three needed coefficients have been theoretically designed, which stand for the dynamic response ability, disturbance rejection, and rejection of the instability caused by machine parameters mismatch, respectively. In addition, the proposed 3DOF current controller can own dead beat response characteristic with one-step delay compensation. Experimental results validate the effectiveness of the proposed 3DOF digital current controller in a ac machine drive test rig.",

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AB - Since current controllers are implemented digitally, digital current controllers need to be established for pursuing high performance alternating current (ac) machine drives. Considering to enhance the dynamic response, disturbance rejection and stability both, this article proposes a simple three-degree-of-freedom (3DOF) digital current controller. In the proposed structure, three needed coefficients have been theoretically designed, which stand for the dynamic response ability, disturbance rejection, and rejection of the instability caused by machine parameters mismatch, respectively. In addition, the proposed 3DOF current controller can own dead beat response characteristic with one-step delay compensation. Experimental results validate the effectiveness of the proposed 3DOF digital current controller in a ac machine drive test rig.

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A Simple Three-Degree-of-Freedom Digital Current Controller with Dead Beat Response for AC Machines

Abstract

Keywords

ASJC Scopus subject areas

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