Measurement and Its Evaluations of Cogging Torque for Lundell Alternator
نویسندگان
چکیده
منابع مشابه
A Reduction Method of Cogging Torque for Magnetic Gears
Nowadays, magnetic gears (MGs) have become an alternative choice for mechanical gears because of their low maintenance, improved durability, indirect contact between inner and outer rotors, no lubrication, and high efficiency. Generally, although these advantages, MGs suffer from inherent issues, mainly the cogging torque. Therefore, cogging torque mitigation has become an active research area....
متن کاملWeC2-1 : Foil Field Lundell Alternator with Rotating Power Electronics
The power requirements of automotive alternators are increasing significantly due to the introduction of new vehicle electrical loads. We aim to improve alternator power density with the use of a foil field winding in the Lundell or claw-pole alternator. Foil field windings are shown to provide higher conductor packing factors than conventional wire wound fields (e.g. 73% as opposed to 64% for ...
متن کاملCogging Torque Control in Brushless Dc Motors
During the past five years, cogging torque in HDD spindle motors has decreased drastically as designers and manufacturers have developed a better understanding of the cogging phenomenon. This paper examines various methodologies of cogging torque reduction. Timing techniques such as dead zones and tooth notching, smoothing techniques such as sinusoidal magnetization, and geometric techniques su...
متن کاملAnalytical prediction of the cogging torque and torque constant of a hybrid stepping motor
We present an analytic method to efficiently calculate the torque constant and cogging torque of a hybrid stepping motor. The feature of the proposed method is its computational efficiency in that it is a useful tool for the motor design which is aimed at reducing the level of cogging torque or increasing the torque constant. This method is verified by comparing with the 3D finite element metho...
متن کاملCogging Torque Ripple Minimization via Position Based Characterization
Smooth motion is critical to some robotic applications such as haptics or those requiring high precision force control. These systems are often direct-drive, so any torque ripple in the motor output must be minimal. Unfortunately, low inherent torque ripple motors are expensive. Low cost brushless DC motors are becoming more prevalent, especially from the hobby RC community. These motors often ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the Institute of Systems, Control and Information Engineers
سال: 1995
ISSN: 1342-5668,2185-811X
DOI: 10.5687/iscie.8.277