TR2022-165

Sensorless Control of Synchronous Machines with DC-Link Voltage Immunity and Adaptation

    •  Anantaram, V., Wang, Y., "Sensorless Control of Synchronous Machines with DC-Link Voltage Immunity and Adaptation", IEEE Power Electronics, Drives and Energy Systems, DOI: 10.1109/​PEDES56012.2022.10080212, December 2022.
      BibTeX TR2022-165 PDF
      • @inproceedings{Anantaram2022dec,
      • author = {Anantaram, Varatharajan and Wang, Yebin},
      • title = {{Sensorless Control of Synchronous Machines with DC-Link Voltage Immunity and Adaptation}},
      • booktitle = {IEEE Power Electronics, Drives and Energy Systems},
      • year = 2022,
      • month = dec,
      • doi = {10.1109/PEDES56012.2022.10080212},
      • url = {https://www.merl.com/publications/TR2022-165}
      • }
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  • Research Areas:

    Control, Electric Systems

Abstract:

Position sensorless techniques have implicit dependence on the DC-link voltage sensor which acts as a single point of failure. This work presents a novel position estimation technique that is immune and resilient to the errors in the DC-link voltage measurement. The proposed sensorless scheme is developed within the projection vector framework from the linearized dynamics of the hybrid flux observer. In addition, a DC-link voltage estimation that is independent and decoupled from the position estimation is developed for a potential DC-link voltage sensorless and position sensorless operation capability. The proposed scheme is validated in simulations on a 5.5 kW permanent magnet assisted synchronous reluctance (PM-SyR) machine.