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Journals / Turkish Journal of Electrical Engineering and Computer Science / 2013 / Cilt: 21 - Sayı: 5

Antiwindup design for the speed loop PI controller of a PMSM servo system

Ming YANG
Li NIU
Dianguo XU
Pages
1318–1327
Publication Date
2013-05-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It reduces the difficulty of the parameter tuning for the PI controller.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:A novel antiwindup (AW) strategy for a proportional-integral (PI) regulator based on the back-calculation method is presented.
📊
Key Findings & Data:The proposed method will calculate the gain of the back-calculation based on the input and output status of the PI regulator without the requirement of motor parameters, such as the inertial and torque-current coefficient, and the back-calculation gain will vary with the speed command in order to obtain the optimal dynamic performance.
💡
Conclusion & Impact:It reduces the difficulty of the parameter tuning for the PI controller.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:PMSM · antiwindup · integration saturation

Abstract

A novel antiwindup (AW) strategy for a proportional-integral (PI) regulator based on the back-calculation method is presented. The proposed method will calculate the gain of the back-calculation based on the input and output status of the PI regulator without the requirement of motor parameters, such as the inertial and torque-current coefficient, and the back-calculation gain will vary with the speed command in order to obtain the optimal dynamic performance. The proposed method avoids the problem caused by the fixed back-calculation gain in the classical AW strategy, and prevents the system from untimely saturation withdrawing or an unexpected overshoot due to the inappropriate back-calculation gain, respectively. The proposed AW strategy is compared with the classical AW design by simulation and experiment on an application platform of a permanent magnet synchronous motor servo system. A PI controller with the proposed AW design will decrease the overshoot with a small settling time of the system's step-response, which can be observed obviously in wide dynamic variation. It reduces the difficulty of the parameter tuning for the PI controller.

Özet

A novel antiwindup (AW) strategy for a proportional-integral (PI) regulator based on the back-calculation method is presented. The proposed method will calculate the gain of the back-calculation based on the input and output status of the PI regulator without the requirement of motor parameters, such as the inertial and torque-current coefficient, and the back-calculation gain will vary with the speed command in order to obtain the optimal dynamic performance. The proposed method avoids the problem caused by the fixed back-calculation gain in the classical AW strategy, and prevents the system from untimely saturation withdrawing or an unexpected overshoot due to the inappropriate back-calculation gain, respectively. The proposed AW strategy is compared with the classical AW design by simulation and experiment on an application platform of a permanent magnet synchronous motor servo system. A PI controller with the proposed AW design will decrease the overshoot with a small settling time of the system's step-response, which can be observed obviously in wide dynamic variation. It reduces the difficulty of the parameter tuning for the PI controller.

🔖

Cite This Article

YANG, M., NIU, L., XU, D. (2013). Antiwindup design for the speed loop PI controller of a PMSM servo system. Turkish Journal of Electrical Engineering and Computer Science, Cilt: 21 - Sayı: 5, 1318–1327. https://ajindex.com/articles/188489

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