scholarly journals Design of A high efficiency and minimum torque ripple three phase BLDC motor drive.

2017 ◽  
Vol 4 (8) ◽  
pp. 48-53
Keyword(s):  
High Efficiency ◽  
Torque Ripple ◽  
Motor Drive ◽  
Bldc Motor ◽  
Three Phase ◽  
Minimum Torque

scholarly journals An Interleaved Boost Converter Based PFC Control Strategy for BLDC motor

2015 ◽  
Vol 5 (5) ◽  
pp. 957
Author(s):  
V. Ramesh ◽  
Y. Kusuma Latha
Keyword(s):  
Control Strategy ◽  
High Efficiency ◽  
Torque Ripple ◽  
Boost Converter ◽  
Motor Drive ◽  
Bldc Motor ◽  
Switching Losses ◽  
Voltage Doubler ◽  
Interleaved Boost Converter ◽  
Conventional Counterpart

<p>In this paper, interleaved power factor correction (PFC) boost converter based control strategy for BLDC motor has been Proposed. The converter exhibits the characteristics of voltage doublers for duty greater than 0.5. The switching losses and losses during reverse recovery operation are considerably reduced in this proposed topology. This is due reduction in switching voltages due to voltage doubler mode. The proposed topology has high efficiency compared to conventional counterpart due to slight increase in conduction losses. In this paper, the proposed PFC control Strategy has been applied to a six switch and four switch VSI fed BLDC Motor drive for effective torque ripple minimization. A comparison is also made between the six switch and Four Switch VSI fed PMBLDC Motor drive.</p><br />

scholarly journals Optimized Sliding Mode Control of Three-Phase Four-Switch Inverter BLDC Motor Drive Using LFD Algorithm

2021 ◽  
Vol 17 (2) ◽  
pp. 129-139
Author(s):  
Quasy Kadhim ◽  
Abbas Abbas ◽  
Mohammed Ezzaldean
Keyword(s):  
Control Strategy ◽  
High Efficiency ◽  
Sliding Mode ◽  
Fitness Function ◽  
Sudden Change ◽  
Drive System ◽  
Motor Drive ◽  
Bldc Motor ◽  
Fast Tracking ◽  
Three Phase

This paper presents a low-cost Brushless DC (BLDC) motor drive system with fewer switches. BLDC motors are widely utilized in variable speed drives and industrial applications due to their high efficiency, high power factor, high torque, low maintenance, and ease of control. The proposed control strategy for robust speed control is dependent on two feedback signals which are speed sensor loop which is regulated by Sliding Mode Controller (SMC) and current sensor loop which is regulated by Proportional-Integral (PI) for boosting the drive system adaptability. In this work, the BLDC motor is driven by a four-switch three-phase inverter emulating a three-phase six switch inverter, to reduce switching losses with a low complex control strategy. In order to reach a robust performance of the proposed control strategy, the Lévy Flight Distribution (LFD) technique is used to tune the gains of PI and SMC parameters. The Integral Time Absolute Error (ITAE) is used as a fitness function. The simulation results show the SMC with LFD technique has superiority over conventional SMC and optimization PI controller in terms of fast-tracking to the desired value, reduction speed error to the zero value, and low overshoot under sudden change conditions.

Resonant BLDC Motor Drive System for Medical Applications

2019 ◽  
Vol 14 ◽  
Author(s):  
C. Vidhya ◽  
V. Ravikumar ◽  
S. Muralidha
Keyword(s):  
High Frequency ◽  
Pulse Width Modulation ◽  
Power Converter ◽  
Low Power Consumption ◽  
Motor Drive ◽  
Medical Applications ◽  
Bldc Motor ◽  
Three Phase ◽  
High Frequency Ac ◽  
Motor Drive System

: The objective of this paper is to implement an ac link universal power converter controlled BLDC motor for medical applications. The ac link universal power converter is a soft switched high frequency ac link converter, created using the parallel combination of an inductor and a capacitor. The parallel ac link converter handle the ac voltages and currents with low reactive ratings at the link and offers improved power factor, low power consumption, more efficiency and less weight on comparison with the traditional dc link converter. Because of the high throughput, BLDC motors are preferred widely medical applications. A modulation technique called Space Vector Pulse Width Modulation (SVPWM) is used to generate the three phase power for the BLDC motors from the input DC supply. To validate the proposed system, simulations are performed in MATLAB – Simulink and an experimental prototype is constructed to supplement the simulation results.

scholarly journals Variation of Speed and Torque Response of Closed-Loop Classical Controlled Different Rated BLDC Motor

2020 ◽  
Vol 8 (6) ◽  
pp. 230-235
Keyword(s):  
Electromotive Force ◽  
Motor Performance ◽  
Closed Loop ◽  
Motor Drive ◽  
Bldc Motor ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Torque Response ◽  
Three Phase ◽  
Comparative Examination

This manuscript proposes a comparative analysis of BLDC motor performance at various ratings. The BLDC motor may act as a replacement for conventional engines such as the Brushed DC motor, the induction motor, the switched reluctance motors, etc. Because of the BLDC motor's overweight merits, modeling is performed to improve system performance. The torque feature of BLDC motor plays an extremely significant aspect in the fabrication of the BLDC motor drive device, so it is crucial to approximation the exact torque value that is calculated by the simulation of the model proposed in MATLAB software. In the MATLAB / Simulink setting, different ratings of BLDC motor are simulated after the creation of the straightforward analytical model of the three-phase BLDC motor with counter electromotive force trapezoidal waveforms. Based on the review, a comparative examination of each valued engine outcome is displayed in the MATLAB environment's Graphical User Interface.

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