DocumentCode :
87068
Title :
Modeling and Analysis of a Linear Resonant Electrostatic Induction Motor Considering Capacitance Imbalance
Author :
Hosobata, Takuya ; Yamamoto, Akiyasu ; Higuchi, Tatsuro
Author_Institution :
Dept. of Precision Eng., Univ. of Tokyo, Tokyo, Japan
Volume :
61
Issue :
7
fYear :
2014
fDate :
Jul-14
Firstpage :
3439
Lastpage :
3447
Abstract :
This paper reports the modeling and analysis of a linear resonant electrostatic induction motor, with an imbalance in capacitance taken into consideration. The motor is an asynchronous motor consisting of film-type stator and slider with three-phase electrodes, driven by three-phase voltage applied to the stator. The slider electrodes are connected to three coils, which enable the slider voltage to rise high at resonance, producing large thrust force. The motor is highly sensitive to an imbalance of capacitance, particularly at resonance. A model is developed to relate each capacitance formed among the electrodes to symmetrical components of the slider voltage and to the thrust force of the motor. The model indicated that the capacitance imbalance leads to an unbalanced slider voltage with two frequency components and causes thrust force ripple. These nonideal effects were confirmed by experiments, using a motor with geometric asymmetry in its electrode design.
Keywords :
electrodes; electrostatic motors; induction motors; linear motors; stators; asynchronous motor; capacitance imbalance; electrode design; film-type stator; geometric asymmetry; linear resonant electrostatic induction motor; slider electrodes; three-phase electrodes; thrust force ripple; Capacitance; Coils; Electrodes; Force; Induction motors; Rotors; Stators; Actuators; electrostatic actuators; electrostatic induction; resonance;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/TIE.2013.2278962
Filename :
6582547
Link To Document :
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