نتایج جستجو برای: permanent magnet brushless dc machines

تعداد نتایج: 187511  

2011
Jun-Hyuk Choi Joon Sung Park

A brushless DC motor with integrated drive circuit for air management system is presented. Using magnetic equivalent circuit model a basic design of the motor is determined, and specific configurations are inspected thanks to finite element analysis. In order to reduce an unbalanced magnetic force in an axial direction, induced forces between a stator core and a permanent magnet are calculated ...

Journal: :Trends in Sciences 2021

The main objective of this work is to optimize the power density axial flux permanent magnet brushless dc (PMBLDC) motor based on genetic algorithm (GA) technique for performance improvement electric 2-wheeler. Power one important parameter as it significantly influences overall Firstly, rating determined according application requirements and vehicular dynamics. Axial PMBLDC 250 W, 150 rpm des...

2015
Sergiu Ivanov Virginia Ivanov Daniel Cismaru Florin Ravigan Dan Selisteanu Dorin Sendrescu

Light urban electric vehicles are an important target, both for the researchers and manufacturers. Concerning the motor’s choice, more ways are investigated, but the most important is that as compact as possible solutions have to be used. In the top of the preferences, the permanent magnet synchronous motors (PMSM) and brushless DC motors (BLDC) are situated. These are preferred thanks to their...

2015
D. Sivaraj Govind Raju

Brushless DC motor has a rotor with permanent magnet and has no mechanical commutator which leads to many advantages like less maintenance, long life, high reliability, low inertia, low friction and low noise. Since the brush system/commutator assembly is replaced by an electronic controller which can be easily integrated into other required electronics, thereby improving the effective power to...

2013
Pooja Agarwal Arpita Bose

This paper demonstrates the detailed analysis of Proportional-Integral (PI) controller and Fuzzy Logic controller for speed control of a Permanent Magnet Brushless DC (PMBLDC) motor for different speed commands and varying load torque conditions. Implementation of PI controller in closed loop conditions is done. Analysis of classical tuning methods to obtain best PI parameters for speed control...

2007
Y. Li

The accuracy of rotor position estimation in the (several kHz), and its amplitude cannot be changed as it is conventional signal injection based sensorless control of determined by the DC-link voltage and the PWM duty cycle, permanent magnet brushless AC drives depends on the load the amplitude of high frequency current will be too small for current. This paper proposes an improved method, whic...

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