Power Factor Correction with Current Controlled Buck Converter for BLDC Motor Drive

2017 ◽  
Vol 8 (2) ◽  
pp. 730 ◽  
Author(s):  
P. Sarala ◽  
S. F. Kodad ◽  
B. Sarvesh
Keyword(s):  
Power Factor ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Dc Motor ◽  
Current Control ◽  
Buck Converter ◽  
Brushless Dc Motor ◽  
Motor Drive ◽  
Source Power ◽  
Brushless Dc

Brushless DC motor is a synchronous machine that makes use of electronic commutation instead of mechanical commutator. Brushless DC motors makes use of inverter encompassing static switches for its operation. A simple bridge converter when used for BLDC drive as front end converter makes input source power factor to get reduced which is unacceptable in the power system. To avoid the distortions in the source voltage and source currents, Buck converter which was used as power factor correction (PFC) converter in this paper to improve the power factor. Presence of power electronic converters deteriorates system power factor effecting overall system performance. This paper presents buck converter for power factor correction in brushless DC motor drive system. Buck converter is operated with current control strategy rather to conventional voltage follower control. Simulation model was obtained using MATLAB/SIMULINK software and the brushless DC motor performance characteristics were shown for conditions with different DC link voltages and step variation in DC link voltage. Total harmonic distortion in source current was also presented.

scholarly journals Power Quality Improvement using Modified Cuk-Converter with Artificial Neural Network Controller Fed Brushless Dc Motor Drive

2019 ◽  
Vol 9 (2) ◽  
pp. 3871-3877
Keyword(s):  
Power Factor ◽  
Harmonic Distortion ◽  
Dc Motor ◽  
Pi Controller ◽  
Brushless Dc Motor ◽  
Motor Drive ◽  
Cuk Converter ◽  
Brushless Dc ◽  
Neural Network Controller ◽  
Network Controller

Power factor rectification converter (PFRC) hinged bridgeless modified CUK (MCUK) converter supplied to brushless DC engine drive utilizing an Artificial Neural Network controller. Presently, alteration for traditional CUK converter can be obtained through adding a voltage multiplier circuit, to decrease converter losses for wide variation of speed to accomplish most extreme Power Factor and to limit the Total Harmonic Distortion (THD). The designed bridgeless PFRC based converter was investigated hypothetically to obtain the circumstances, for example, Power factor (PF) and Total Harmonic Distortion (THD) are assessed and contrasted with traditional Diode Bridge Rectifier hinged CUK converter supplying to brushless DC motor drive and bridgeless altered CUK using PI controller driven brushless DC motor. Here, simulation results uncover that the ANN controllers are viable and productive contrasted with PI controller, as the steady state error when ANN control used is less and the stabilization of the system is better while using it. Additionally in ANN system, the time to perform calculation is less as there are no numerical models. The performance of the designed framework is simulated in MATLAB/Simulink environment.

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