Optimal dynamic current control for externally excited synchronous machines

Reinhard J, Löhe K, Graichen K (2024)

Publication Type: Conference contribution

Publication year: 2024

Book Volume: 7

Pages Range: 146-152

Event location: Newcastle upon Tyne, UK

DOI: 10.1109/CCTA60707.2024.10666513

Abstract

Control of externally excited synchronous machine involves specifying current setpoints with respect to system limits such as maximum phase and excitation currents as well as the inverter voltages, while also achieving the desired torque in an energy-efficient manner. However, this is often only achievable in stationary operation. To attain the desired torque in dynamic scenarios, a nonlinear input-output linearization method paired with an asymptotic tracking controller for current control is utilized. Additionally, the tracking controller is extended to accommodate for voltage constraints. Optimal dynamic current setpoints are determined by solving a nonlinear optimization problem in a combinatorial manner in order to allow for a real-time execution of the algorithm. Simulations and comparisons with a standard FOC approach demonstrate the algorithm’s effectiveness in achieving the desired torque, minimizing losses, complying with system constraints, and maintaining a low computational load.


Authors with CRIS profile

Johannes Reinhard Chair of Automatic Control (LRT/AC) Knut Graichen Chair of Automatic Control (LRT/AC)

Related research project(s)

Regelung des Antriebsstrangs beim Kaltwalzen July 1, 2020 - Aug. 31, 2023

Involved external institutions

Primetals Technologies Germany GmbH DE Germany (DE)

How to cite

APA:

Reinhard, J., Löhe, K., & Graichen, K. (2024). Optimal dynamic current control for externally excited synchronous machines. In Proceedings of the 2024 IEEE Conference on Control Technology and Applications (CCTA) (pp. 146-152). Newcastle upon Tyne, UK.

MLA:

Reinhard, Johannes, Klaus Löhe, and Knut Graichen. "Optimal dynamic current control for externally excited synchronous machines." Proceedings of the 2024 IEEE Conference on Control Technology and Applications (CCTA), Newcastle upon Tyne, UK 2024. 146-152.

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