نتایج جستجو برای: bldc motor
تعداد نتایج: 159583 فیلتر نتایج به سال:
In this paper a new bridgeless isolated power factor correction (PFC)-based Cuk converter-fed brushless dc (BLDC) motor drive is introduced for power factor correction and reduction in total harmonic distortion of input current. Dc link voltage of the voltage source inverter (VSI) feeding the BLDC motor is varied for speed control. This allows the operation of VSI in fundamental frequency switc...
In high power high voltage application BLDC motor are widely used because of higher efficiency, simple in construction, lower cost, less in maintenance and higher torque or high output power per unit volume. For driving the BLDC motor an electrical commutator (inverter) is required. PWM inverter gives good performance. In two level inverter there are problems of harmonics distortions, low elect...
In a Universal DC motor, brushes control the commutation by physically connecting the coils at the correct moment. In BLDC motors the commutation is controlled by electronics. The electronics can either have position sensor inputs that provide information about when to commutate or use the Back Electromotive Force generated in the coils. Position sensors are most often used in applications wher...
1 ColdFire MCF523x and eTPU Advantages and Features ..............................................................2 2 Target Motor Theory ............................................4 3 System Concept ..................................................8 4 Software Design ................................................18 5 Implementation Notes .......................................36 6 Micropro...
A control actuation system has been used extensively in automotive, aerospace, and defense applications. The major challenges in modeling control actuation system are rise time, maximum peak to peak overshoot, and response to nonlinear system with percentage error. This paper addresses the challenges in modeling and real time implementation of control actuation system for missiles glider applic...
Due to the simple structure, high torque density, low maintenance, and high efficiency, brushless direct current (BLDC) motors are widely used in automation and industrial applications. A control strategy based on single current sensor is proposed for a four-switch three-phase BLDC motor system to lower cost and improve reliability. The whole working process of the BLDC motor is divided into si...
This paper presents the method of reducing torque ripple of brushless DC (BLDC) motor. The commutation torque ripple is reduced by control of the DC link voltage during the commutation time. The magnitude of voltage and commutation time is estimated by a neural network and optimized with an optimization method named particle swarm optimization (PSO) algorithm analysis. The goal of optimizati...
Penelitian ini berfokus pada desain penggerak sepeda motor listrik dimana yang digerakkan oleh bakar dikonversi menjadi digerakan dinamo BLDC (Brushless Direct Current) serta menghitung berapa torsi dan daya dihasilkan bldc. Langkah pertama adalah studi literatur pemilihan konsep tipe matic dengan di konversikan Mendesain rangka kedudukan menggunakan aplikasi desain, kemudian mendesain listrik,...
condition monitoring of bldc motors due to their important applications is gaining more and more significance. rotor eccentricity is one of the most important sources of faults in these motors. up to now, detection methods of this fault under nonstationary conditions are limited to complicated and time-consuming methods using wavelets and cohen class algorithms which are difficult to implement ...
In order to save resources and prevent global warming, there has been a present need in recent years to reduce the volume of CO2 emission and it improves the fuel consumption of automobiles. The trend in the automotive applications is to improve efficiency and to reduce volume and weight. Under these circumstances, the mechanical parts in the automobile industry are being replaced by electronic...
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