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Efficient Supply Current Control Strategies for Bridgeless Interleaved AC-DC Converter

R. Sasikala1,*, R. Seyezhai2

1 Department of Electrical and Electronics Engineering, Sathyabama Institute of Science and Technology (Deemed to be University), Chennai, Tamil Nadu, 600119, India
2 Department of Electrical and Electronics Engineering, SSN College of Engineering, Chennai, Tamil Nadu, 603110, India

* Corresponding Author: R. Sasikala. Email: email

Computer Systems Science and Engineering 2022, 43(1), 175-191.


This paper presents an efficient supply current wave shaping technique for bridgeless interleaved Single Ended Primary Inductor Converter (SEPIC). The SEPIC converter converts an Alternating Current (AC) to Direct Current (DC) with the boost converter. Power Factor Correction (PFC) is progressively significant to achieve high energy efficiency. The overall system efficiency can be increased as the bridgeless topology has less conduction losses from rectifying bridges. Also, the bridgeless and interleaved techniques are incorporated in this study to achieve better performance. The performance of the system is analyzed on both current control and sensor-less techniques. Different controllers such as Proportional Integral (PI) control, peak current control, Non-Linear Carrier (NLC) control, and sensor-less current control are integrated. All the above controllers are implemented using MATrix LABoratory (MATLAB)/SIMULINK. The performance parameter, namely Power Factor (PF), Total Harmonic Distortion (THD), is computed for both open loop and closed loop condition. The sensor-less current control method is implemented using the DsPIC30F2010 controller. The circuit performance is also verified from the simulation and hardware results. The proposed controller has inbuilt Analog-to-Digital Converter (ADC), Digital-to-Analog Converter (DAC), Pulse Width Modulation (PWM) generator, and provides fast responses.


Cite This Article

R. Sasikala and R. Seyezhai, "Efficient supply current control strategies for bridgeless interleaved ac-dc converter," Computer Systems Science and Engineering, vol. 43, no.1, pp. 175–191, 2022.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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