Journal

1. Wireless Power Transfer Using Electronic Textiles: A Comparative Review

Journal of Engineering Research

2024 | Journal article

DOI: https://doi.org/10.1016/j.jer.2024.02.008

Part of ISSN: 2307-1877

CONTRIBUTORS: Showrov Rahman; Marjan Al Haque; Mohammad Solaiman; Rashed Hasan Ratul; Istiak Ahmed; Shawana Tabassum; Izabela Ciesielska-Wrobel

Description: Wireless power transfer (WPT) has already been established as a popular technology in multiple areas such as electric vehicle charging, smartphone charging, or powering bio-medical implants. In recent years, wireless power transfer in electronic textiles (e-textiles) or smart textiles has seen rapid growth with the advancement of textile materials and flexible electronic components. Although many reviews and surveys on WPT can be found in the literature for other popular fields, this is not the case for the application of WPT in e-textiles. To address this issue, a comparative review of previous literature on WPT in e-textiles is presented in this paper. The textile-based WPT systems have been categorized according to their transmitter (Tx) and receiver (Rx) properties, Tx and Rx fabrication technique, applied substrate, operating frequency, power level, and achieved efficiency.

Conference

1. Development of a Single-Phase Hybrid Quadratic AC-DC Boost Converter with Improved Power Quality [First Author]

2023 10th IEEE International Conference on Power Systems (ICPS)

2023-12-13 | Conference paper

DOI: 10.1109/icps60393.2023.10428708

CONTRIBUTORS: Marjan Al Haque; Md. Ashaduzzaman Niloy; Alif Khan; Showrov Rahman; Istiak Ahmed; Ahmed Jobair

Description: This research presents a novel hybrid AC-DC Boost converter topology. The positive aspects of AC-DC conversion methods are combined in the proposed converter architecture to provide effective power transmission and enhanced grid compatibility. The circuit operations of the proposed converter are also described in detail. The performance of the converter has been evaluated with both the open-loop and closed-loop simulation models. The proposed circuit shows higher voltage gain performance by maintaining other factors including efficiency, total harmonic distortion (THD) and power factor (PF) within a good range. For open loop operation, the suggested converter offers conversion efficiencies of up to 99.77%. The performance of THD percentage shows remarkable result that is lower than the conventional circuit, while PF remains high for a wide range of operations. In closed-loop analysis, we achieved near unity (0.99) PF, more than 99% efficiency and lower THD than the conventional circuit.

2. Diode-Capacitor Assisted Input Switched AC to DC Boost Converter with Improved Power Quality

2023 IEEE International Conference on Energy Technologies for Future Grids (ETFG)

2023-12-03 | Conference paper

DOI: 10.1109/etfg55873.2023.10408503

CONTRIBUTORS: Golam Sarowar; Marjan Al Haque; Istiak Ahmed

Description: The design and analysis of a modified input-switched AC-DC boost converter which significantly outperforms the traditional converter is presented in this paper. We have provided a thorough theoretical analysis of the suggested converter in this paper, illuminating its operating principles and voltage gain expression. We have applied a suitable control scheme which provides output voltage regulation maintaining near unity power factor (PF) and lesser amount of input current total harmonic distortion (THD) (mostly below 10%). The proposed converter in comparison to typical AC-DC boost converter provides superior power quality with regard to conversion efficiency, THD and PF. Dual networks of diode-capacitor enable the suggested converter in achieving greater boost voltage.

3. Empirical Investigation of a Single-Phase New Topology Hybrid AC-DC Boost Converter with Low THD and High-Power Factor

2023 IEEE International Conference on Energy Technologies for Future Grids (ETFG)

2023-12-03 | Conference paper

DOI: 10.1109/etfg55873.2023.10408327

CONTRIBUTORS: Istiak Ahmed; Marjan Al Haque; Md. Mehedi Hassan; Showrov Rahman; Navila Rahman Nadi; Md. Abdur Razzak

Description: This paper presents an empirical investigation of a novel single-phase hybrid AC-DC boost converter with the primary objectives of achieving low input current Total Harmonic Distortion (THD) and a high input Power Factor (PF). The proposed converter topology combines the benefits of both AC and DC conversion techniques to ensure efficient power transfer and enhanced grid compatibility. The theoretical underpinnings of the hybrid converter design are explained, emphasizing the innovative features that enable THD mitigation and PF enhancement. The proposed converter in open loop provides input current THD within IEEE 519 standard for moderate duty ratios and near unity power factor for almost all the duty ratio.