نتایج جستجو برای: brushless dc motors
تعداد نتایج: 68557 فیلتر نتایج به سال:
The brushless DC motor used in ISAD of Electric and Hybrid Electric Vehicles is introduced in this paper. Magnet field distribution and static characteristic of permanent magnet brushless DC motor are calculated by finite element methods.
Conventionally, BLDC motors are commutated in six-step pattern with commutation controlled by position sensors. To reduce cost and complexity of the drive system, sensorless drive is preferred. The existing sensorless control scheme with the conventional back EMF sensing based on motor neutral voltage for BLDC has certain drawbacks, which limit its applications. This paper presents the dynamic ...
This paper reports an investigation of pulse width modulation (PWM) techniques fo r two-phase brushless DC (BLDC) motors fed by a two-phase eight-switch inverter in a fan a pplication. The three-phase BLDC motor is widely applied in industry; however, a lower-cost t wo-phase BLDC motor and drive circuit has been greatly in demand in recent years. In this p aper, we introduce a mathematical mode...
A modified pulse width modulation technique for Z-source inverter based BLDC motor is proposed and analyzed in this project.The Z-source inverter can be used as Buck/Boost converter with lower cost and high efficiency. BLDC motors are used in electric vehicles where portability and efficiency are required. This drive system provides advantages of both BLDC motors and Z-source inverter, and can ...
Switched reluctance (SR) motors have high power density, high efficiency, high reliability, high fault tolerance, and low manufacturing cost. Thus, these motors have a high potential than other machines such as permanent magnet brushless motor, high-temperature super conductor motor, etc.; hence, it is well-suited for electric marine propulsion. This paper presents a new power converter and ana...
This paper focuses on motor parameters of the Brushless DC motor. main goal this work is to demonstrate that BLDC motors are best electric for vehicles. Due their increased efficiency and reduced maintenance requirements, brushless used. The proposes a framework analyze characteristics using Code Composer Studio software InstaSpin GUI. framework's features, experimental results, potential benef...
This Paper presents a particle swarm optimization (PSO) method for determining the optimal proportional-integralderivative (PID) controller parameters, for speed control of a linear brushless DC motor. The proposed approach has superior features, including easy implementation, stable convergence characteristic and good computational efficiency. The brushless DC motor is modelled in Simulink and...
Electric vehicle (EV) is one of the effective solutions to control emission of greenhouses gases in the world. It is of interest for future transportation due to its sustainability and efficiency by automotive manufacturers. Various electrical motors have been used for propulsion system of electric vehicles in last decades. In this paper brushed DC motor, Induction motor (IM), switched reluctan...
This paper proposes an approach to improve the cost-effectiveness of the control of variable speed drives in the robotics field. This could be achieved by the association of brushless DC motors (BLDCM)with a reduced structure DC/AC converter that is the three-switch inverter (TSI) equipping a robot arm. In a first step, we devoted the analysis, modelisation and control of a three-switch inverte...
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