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Position estimation for synchronous motor drives: unified framework for design and analysis
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A4 Artikkeli konferenssijulkaisussa
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en
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Proceedings of the 8th IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2017, pp. 25-30, IEEE International Symposium on Sensorless Control for Electrical Drives
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This paper deals with the model-based speed and position estimation for synchronous reluctance motors (SyRMs) and interior permanent-magnet synchronous motors (IPMs). A unified design and analysis framework for a class of observers is developed and the links between apparently different observer structures are brought out. Adaptive state observers equipped with a speed-adaptation law are shown to equal voltage-model-based flux observers equipped with a position-tracking phase-locked loop (PLL). The error signal driving the adaptation law or the PLL is presented in a generalized form. The developed framework enables revealing potential instability issues of existing observer designs and exploiting already existing stability results. A stabilizing gain design is reviewed and design guidelines are given. The observer design is experimentally evaluated using a 6.7-kW SyRM drive.
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Hinkkanen, M, Saarakkala, S E, Awan, H A A, Mölsä, E & Tuovinen, T 2017, Position estimation for synchronous motor drives: unified framework for design and analysis. in Proceedings of the 8th IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2017., 8078425, IEEE International Symposium on Sensorless Control for Electrical Drives, IEEE, pp. 25-30, IEEE International Symposium on Sensorless Control for Electrical Drives, Catania, Italy, 18/09/2017. https://doi.org/10.1109/SLED.2017.8078425