Results 221 to 230 of about 33,301 (265)
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Torque controller for brushless DC motors
IEEE Transactions on Industrial Electronics, 1999A high-performance torque controller is proposed for three-phase brushless DC motor drives. The strategy is based on variable-structure control and a new synchronous reference frame is utilized. Advantages over conventional strategies include improved dynamic performance, reduced acoustic noise, improved drive efficiency and enhanced inverter ...
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Torque maximization for permanent magnet synchronous motors
1997 European Control Conference (ECC), 1997The paper discusses the problem of maximizing the torque of permanent magnet synchronous motors in the presence of voltage and current constraints. Formulas are given that are suitable to operation with voltage and current source inverters and to real-time computation.
Alexander Verl, Marc Bodson
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Soft Starting of Induction Motor with Torque Control
2008 IEEE Industry Applications Society Annual Meeting, 2008This paper presents a simple technique based on stator flux estimation to control the electromagnetic torque of the induction motor during soft starting. The inherent problems related to pure integration of the back electromagnetic force to estimate the stator flux are minimized using the low pass filter approach.
Ademir Nied +4 more
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Synchronous Torques in Split Phase Induction Motors
2008 IEEE Industry Applications Society Annual Meeting, 2008This paper addresses the causes of synchronous torques in split-phase induction motors. First, an analytical model is outlined to describe the processes involved in producing synchronous torques. This involves the consideration of the motor MMFs interacting with the slot permeances. The results from the implementation of the model are given for several
Peter Scavenius Andersen +3 more
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Torque control of electric motors without using torque sensor
2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2007Accurate torque control of a brushless motor requires the motor's torque characteristics, which can be captured by a periodic function in motor angle. This paper presents a direct adaptive controller for torque control of brushless motors, which estimates the Fourier coefficients of the periodic function based on the measurements of motor phase voltage
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A computer-controlled torque motor
Measurement Science and Technology, 1990The authors describe an inexpensive intelligent controller for laboratory torque motors, or any other analogue positioning device. The instrument is based on a single-board microcomputer, and is programmed in the high-level language FORTH. It may be interfaced to a general purpose computer via one of two serial ports, and may also function as a stand ...
A Walmsley, J L Bahr
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Structural basis of assembly and torque transmission of the bacterial flagellar motor
Cell, 2021Yan Zhou, Shenghai Chang, Haichun Gao
exaly
Measurement of torque ripples for small torque motors
Optics and Precision Engineering, 2016王向军 WANG Xiang-jun +1 more
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Torque Motor, Constant-Torque Spring Motors
American Journal of Physics, 1962openaire +1 more source
TORQUE AND FLUX TRACKING OF INDUCTION MOTORS
International Journal of Robust and Nonlinear Control, 1997Espinosa-Pérez, Gerardo +2 more
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