1. Observers for Sensorless Synchronous Motor Drives: Framework for Design and Analysis.
- Author
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Hinkkanen, Marko, Saarakkala, Seppo E., Awan, Hafiz Asad Ali, Molsa, Eemeli, and Tuovinen, Toni
- Subjects
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RELUCTANCE motors , *SYNCHRONOUS electric motors , *GUIDELINES , *ELECTRIC inductors , *ELECTRIC potential - Abstract
This paper deals with the 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 back electromotive force-based observers is developed and the links between apparently different estimation methods are brought out. State observers equipped with a speed-adaptation law are shown to be mathematically equivalent to voltage-model-based flux observers equipped with a position-tracking loop. The error signal driving the adaptation law or the tracking loop is presented in a generalized form. Using the framework, a stabilizing gain design is reviewed and detailed design guidelines are given. Selected observer designs are experimentally evaluated using a 6.7-kW SyRM drive and a 2.2-kW IPM drive. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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