نتایج جستجو برای: brushless direct current bldc motor
تعداد نتایج: 1300054 فیلتر نتایج به سال:
Purpose Switching power converters for photovoltaic (PV) applications with high gain are rapidly expanding. To obtain better voltage gain, low switch stress, ripple and cost-effective converters, researchers developing several topologies. Design/methodology/approach It was decided to use the particle swarm optimization approach this system in order compute precise PI controller parameters under...
For many industrial applications that including electric motor, selecting of the appropriate motor type is keypoint for the application success and efficiency. This paper presents a comparative performance evaluation between direct torque controlled Brushless AC and Brushless DC motors which have been considered as traction motor on electric vehicles. Moreover, a short review to brushless AC an...
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 ...
Despite many advantages of BrushLess DC motor, torque pulsation is one of the most important disadvantages of it. At first, an optimum primary design of BLDC motor is done using PSO algorithm. Then, other parameters for reducing the torque pulsation are considered by finite element method. It is shown that fractional slot structure has many advantages than conventional one. Both cogging and rip...
Brushless direct current (BLDC) motors are mostly preferred for dynamic applications such as automotive industries, pumping and rolling industries. It is predicted that by 2030, BLDC will become mainstream of power transmission in industries replacing traditional induction motors. Though the gaining interest industrial commercial applications, future faces indispensable concerns open research c...
Mobil listrik adalah mobil yang digerakkan dengan motor BLDC menggunakan energi disimpan dalam baterai atau tempat penyimpanan energi. Mengingat performa DC maupun AC masih belum mampu memenuhi kebutuhan, maka dari itu penggunaan (Brushless Direct Current) menjadi pilihan sangat tepat. Motor memiliki beberapa kelebihan. Diantaranya yaitu, kebisingan rendah saat digunakan, karakteristik kecepata...
Brushless direct current (BLDC) motors are high efficiency synchronous that employed in a variety of applications due to prominent features such as long operational life, low maintenance requirements, and great dynamic response. BLDC driven by energizing the motor stator windings with an inverter circuit. To commute switches, trapezoidal (120°) method is generally used considering back electrom...
The development of high performance variable speed brushless dc motor drive is very important in all industrial applications. Generally, a high performance BLDC motor drive system must have good dynamic speed response, reference speed command tracking capability and load regulating response. Conventional controller such as PI, PID does not provide good dynamic response due to the problem of non...
This paper proposes pulse width modulation (PWM) methods for low inductance brushless DC (BLDC) motor drives that minimize the commutation torque ripples. An uneven current of non-commutation phase generates In BLDC drives, two types time delays in PWM also induce critical this paper, analyses and their effects are introduced. Then, proposed to eliminate region conduction region, respectively. ...
This paper presents an original study on the generated torque ripples of phase commutation in the Four-Switch, Three-Phase Inverter (FSTPI) Brushless DC (BLDC) motor drive which is suitable for low cost applications. Analytic values of torque ripple and commutation duration are obtained for different operation conditions. Moreover, limitation on the speed range operation caused from splitti...
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