Automated Model-Free Commutation for Coarse Pointing Actuators in Free-Space Optical Communication

M. van Meer, Kjell A.R. van Schie, Gert Witvoet, Tom A.E. Oomen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

Switched Reluctance Motors (SRMs) are widely used for their simplicity and cost-effectiveness, for example, in coarse laser pointing for free-space optical (FSO) communication, with torque ripple being a challenge in their implementation. This paper introduces an automated, model-free approach to minimize torque ripple in SRMs despite manufacturing variations. Using an extremum-seeking approach, the commutation parameters are adapted online to mitigate the position-dependent velocity ripple through gradient descent. Simulations show that the method's effectiveness is consistent across different SRMs, rendering it applicable to mass production, and experimental results verify that torque ripple is almost entirely eliminated in several hours. The developed approach enables accurate SRM control with minimal expert knowledge, functioning as a crucial step toward their deployment in constellation projects for FSO communication.
Original languageEnglish
Title of host publication2024 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)
Number of pages6
Publication statusAccepted/In press - 2024
Event2024 IEEE/ASME International Conference on Advanced Intelligent Mechatronics AIM 2024 - Boston, United States
Duration: 15 Jul 202418 Jul 2024

Conference

Conference2024 IEEE/ASME International Conference on Advanced Intelligent Mechatronics AIM 2024
Abbreviated titleAIM 2024
Country/TerritoryUnited States
CityBoston
Period15/07/2418/07/24

Keywords

  • Switched Reluctance Motor
  • commutation
  • Extremum seeking control
  • optimization

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