Seilmeier M, Ebersberger S, Piepenbreier B (2013)
Publication Status: Published
Publication Type: Conference contribution
Publication year: 2013
Recently published papers show that also a saliency in the high frequency (HF) resistances can be used for sensorless control. Those papers assume a diagonal HF resistance matrix. The aim of this paper is to show, based on experimental results, that a phenomenon like cross-saturation for the inductances is also existent for the HF resistances. The voltage drops caused by the HF resistances are typically very small and thus their identification is challenging. Therefore a high precision 3-phase current measurement is used and the dead-time and voltage drop errors caused by the inverter are compensated for. A high frequency test current control allowing zero steady-state control error is needed to overcome the limitations of voltage injection based methods.
Seilmeier, M., Ebersberger, S., & Piepenbreier, B. (2013). Identification of high frequency resistances and inductances for sensorless control of PMSM.
Seilmeier, Markus, Sebastian Ebersberger, and Bernhard Piepenbreier. "Identification of high frequency resistances and inductances for sensorless control of PMSM." 2013.