Simulation and Analysis of a Multiphase Adaptive 4-Switch Converter for High-Efficiency Battery Charging Applications | Chapter 5 | Engineering Research: Perspectives on Recent Advances Vol. 1

This paper presents a multiphase 4-switch DC-DC converter optimized for efficient battery charging across variable voltage conditions. Designed for dual-mode operation, it autonomously adapts between buck and boost modes based on the relationship between source and battery voltages, maintaining high efficiency through low-resistance MOSFETs (metal-oxide-semiconductor field-effect transistor) that minimize conduction losses. Employing a multiphase interleaved structure, the converter achieves significant ripple reduction, verified through detailed LT-SPICE (Linear Technology-Simulation Program with Integrated Circuit Emphasis) simulations. Results demonstrate the converter's performance benefits under diverse charging conditions, making it suitable for high-density battery systems with stringent efficiency and stability requirements.

 

Author (s) Details

 

Puneet Kaur
Electrical and Electronics Engineering Department, UIET, Panjab University, Chandigarh, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/erpra/v1/3459

Speed Control of SRM Drive Using Closed Loop Bridgeless SEPIC with P, PI and Fuzzy Logic Controller | Chapter 3 | Emerging Trends in Engineering Research and Technology Vol. 3

The Switched Reluctance Machine (SRM) is used for many application of electric drive system due to its simple construction and its robustness. Due to doubly salient structure of SRM; the torque pulsations are high when compared to other sinusoidal machines. The major drawback of using SRM drive is torque pulsations and increased components in the converter. In order to avoid these drawbacks a new bridgeless Single Ended Primary Inductor Converter (SEPIC) for closed loop control of SRM drive is proposed. The proposed converter reduces a conduction loss, input current ripple, torque ripples and also the Total Harmonic Distortion (THD). The requirements of converter for switched reluctance motor drives and the proposed new converter are analyzed and discussed. The torque, current, speed of SRM for the proposed converter is analysed also the speed of SRM is controlled by applying the conventional P& PI Controller and  AI based Fuzzy Logic Controller in MATLAB simulation. The results are presented for comparison with P.PI and Fuzzy logic controllers. The simulation results reveals that the new bridgeless SEPIC converter in close loop operation using fuzzy logic controller provides better results with quicker speed settling time. 

Author(s) Details

Dr. C. Maheswari
 AP/EEE, PSG College of Technology, Coimbatore, Tamil Nadu, India.

Ms. R. Divya
 AP/EEE, PSG College of Technology, Coimbatore, Tamil Nadu, India.

Dr. V. Ranganayaki
ASP/EEE, Dr. N.G.P. Institute of Technology, Coimbatore, Tamil Nadu, India

View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/179