THESIS
2017
viii, 64 pages : illustrations ; 30 cm
Abstract
Inductance saliency is a rotor position self-sensing method that complements traditional
self-sensing methods and is believed to be able to deliver robust closed-loop control under
different conditions in low-speed to standstill situations. In this paper, a novel rotor position
self-sensing method that rivals other inductance saliency tracking position sensing method
is proposed. The method tracks inductance saliency through estimating the impedance
of the stator winding. Rotor angle information is then produced out of a phase-locked-loop. Detailed operation theory and detection performance on different motors are discussed.
Practical issues and non-linearities that will arise and possible compensation method are
also addressed for realization. The capability of the method on ove...[
Read more ]
Inductance saliency is a rotor position self-sensing method that complements traditional
self-sensing methods and is believed to be able to deliver robust closed-loop control under
different conditions in low-speed to standstill situations. In this paper, a novel rotor position
self-sensing method that rivals other inductance saliency tracking position sensing method
is proposed. The method tracks inductance saliency through estimating the impedance
of the stator winding. Rotor angle information is then produced out of a phase-locked-loop. Detailed operation theory and detection performance on different motors are discussed.
Practical issues and non-linearities that will arise and possible compensation method are
also addressed for realization. The capability of the method on overcoming specific inverter
practical issues that challenges conventional sensorless control is also demonstrated. Finally,
a brushless DC motor model is constructed and simulated. Results are cross-checked with
the experiment data and tracking results from the self-sensing controller under different
conditions are studied.
Post a Comment