Results 141 to 150 of about 1,770 (185)
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Undriven vibrations in brushless DC motors
2000 Asia-Pacific Magnetic Recording Conference. Digests of APMRC2000 on Mechanical and Manufacturing Aspects of HDD (Cat. No.00EX395), 2001This paper investigates motor vibrations due to reluctance forces. Forcing frequencies caused by motor design, part geometries, and errors in assembly are tabulated for several popular pole/slot ratios. Motor torque and translational force fluctuations are found to exhibit a rich set of shapes and frequencies, especially when multiple defects occur ...
A. Hartman, W. Lorimer
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Sensorless PM brushless DC motor drives
IEEE Transactions on Industrial Electronics, 1996To control PM brushless DC motors, position and speed sensors are indispensable because the current should be controlled depending on the rotor position. However, these sensors are undesirable from standpoints of size, cost, maintenance, and reliability. There are different ways of approaching this problem, depending on the flux distribution. The paper
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The design of brushless DC motor controller
2010 International Conference on Intelligent Control and Information Processing, 2010An integrated drive circuits design of brushless DC motor based on A3936 was presented. The A3936 is grid drive integrated circuit of DMOS. It can make circuit design simple. The stabilization of system was enhanced for the use of Dual closed loops. Also protect circuits against low battery voltage, over current were include.
Chengang Zhao, Yaochun Wu
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PWM control of brushless DC motor
2021This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Russian Electrical Engineering, 2009
The possibility of creating and constructing a brushless dc motor with a stator asynchronous motor is examined.
V. V. Kochergin, B. V. Zakrevskaya
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The possibility of creating and constructing a brushless dc motor with a stator asynchronous motor is examined.
V. V. Kochergin, B. V. Zakrevskaya
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An investigation on brushless DC motor CAD
Proceedings of the 3rd World Congress on Intelligent Control and Automation (Cat. No.00EX393), 2002BLDC motors are widely used in industrial applications in the world, the design of the motor and its control circuits are related to each other, and it implies the complexity of BLDCM. A BLDC motor is a permanent magnet motor, the design methods are much different from that of traditional motors.
null Wang Qunjing +4 more
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Performance calculation of brushless DC motor
2005 International Conference on Electrical Machines and Systems, 2005In this paper the performances of a tangentially magnetized brushless DC motor are calculated and tested. For the calculation, both circuit method and finite-element method (FEM) provided by commercial software Ansoft are used. With the circuit method, motor design and performance calculation can be performed.
null Ping Zheng +5 more
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Pole optimization of brushless DC motor
Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting., 2004For the tangentially magnetized brushless DC motor used for air compressor, the pole embrace and eccentricity are optimized with 2D FEM (finite element method) to decrease the torque ripple. For the pole embrace optimization, seven different pole arc angles are compared, and 60 /spl deg/ is considered as the best one.
null Ping Zheng +3 more
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2009
This chapter contains sections titled: Introduction Voltage-Source Inverter Drives Equivalence of VSI Schemes to Idealized Source Average-Value Analysis of VSI Drives Steady-State Performance of VSI Drives Transient and Dynamic Performance of VSI Drives Consideration of Steady-State Harmonics Case Study ...
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This chapter contains sections titled: Introduction Voltage-Source Inverter Drives Equivalence of VSI Schemes to Idealized Source Average-Value Analysis of VSI Drives Steady-State Performance of VSI Drives Transient and Dynamic Performance of VSI Drives Consideration of Steady-State Harmonics Case Study ...
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