Position estimation for synchronous motor drives: unified framework for design and analysis
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A4 Artikkeli konferenssijulkaisussa
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Date
2017-09-18
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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
Abstract
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.Description
Keywords
observer, stability conditions, speed sensorless
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Citation
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