Modeling of voltage induction of a resonant electrostatic induction motor using 2-phase slider and a single coil

摘要

This paper describes a resonant electrostatic induction motor utilizing LC resonance between two-phase slider electrodes and a single coil. Resonant electrostatic motors have been studied in literature, which utilize three-phase sliders. As a three-phase slider requires three coils to realize LC resonance, the resulting motor system became large due to the relatively large volume of coils compared to the original electrostatic motors. The new resonant electrostatic motor described in this paper utilizes two-phase slider, which requires only one coil to realize resonance. This leads to reduction of the total volume of the motor system. The paper models the behavior of the resonant motor to obtain the induction voltage in such a configuration. The obtained theoretical voltage is compared with experimental results, which agree well at a low voltage region. At a high voltage, however, the experimental results show non-linearity and hysteresis, which does not appear in the theoretical model. The cause of the non-linearity and hysteresis is revealed through a numerical simulation, which indicates the gap variation in the prototype motor caused the non-linear behavior.