DocumentCode
2400808
Title
Efficiency issues in variable-capacitance micromotor drives
Author
Chapman, Patrick L.
Author_Institution
Grainger Center for Electr. Machines & Electromechanics, Illinois Univ., Urbana, IL
fYear
2005
fDate
15-15 May 2005
Firstpage
1122
Lastpage
1129
Abstract
Efficiency issues of variable-capacitance micromotors are discussed in context of combined drive and motor interaction. It is shown that variable-capacitance motors ideally have nearly perfect energy conversion efficiency and constant torque if constant voltage is applied. However, the drive system consisting of both the motor and electronics is not ideal when considering different methods for charging capacitive devices. Constant-voltage vs. constant-current charging is explored. Simulation is used to clarify the theoretical concepts discussed
Keywords
capacitance; direct energy conversion; micromotors; motor drives; constant torque; constant voltage charging; constant-current charging; energy conversion efficiency; variable-capacitance micromotor drives; Drives; Electric breakdown; Electrostatic actuators; Induction motors; Magnetic flux; Magnetic separation; Micromotors; Power electronics; Reluctance motors; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electric Machines and Drives, 2005 IEEE International Conference on
Conference_Location
San Antonio, TX
Print_ISBN
0-7803-8987-5
Electronic_ISBN
0-7803-8988-3
Type
conf
DOI
10.1109/IEMDC.2005.195862
Filename
1531480
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