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Article

A Detailed Analysis and Gain Derivation of Reconfigurable Voltage Rectifier-Based LLC Converter

by
Fahad Alaql
1,*,
Walied Alfraidi
1,
Abdullah Alhatlani
1,
Abdullrahman A. Al-Shamma’a
1,
Hassan M. Hussein Farh
1 and
Ahmed Allehyani
2
1
Electrical Engineering Department, College of Engineering, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11564, Saudi Arabia
2
Electrical and Electronic Engineering Department, College of Engineering, University of Jeddah, Jeddah 21589, Saudi Arabia
*
Author to whom correspondence should be addressed.
Electronics 2024, 13(19), 3788; https://doi.org/10.3390/electronics13193788
Submission received: 27 July 2024 / Revised: 24 August 2024 / Accepted: 1 September 2024 / Published: 24 September 2024
(This article belongs to the Special Issue Power Electronics and Renewable Energy System)
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Abstract

In this paper, a complete analysis of an LLC resonant converter with a customized rectifier structure is presented. The converter is intended for wide, low-input, high-output voltage DC bus applications. The performance of the converter is assessed using comprehensive time-domain and fundamental harmonic approximation (FHA), which demonstrates its capacity to operate across an ample range of voltages by precisely adjusting the rectifier structure. The converter’s capability is illustrated by deriving and discussing detailed mode operation, steady-state analysis, and DC gain equations. In order to verify the theoretical analysis, a prototype with a power output of 250 watts is constructed and subjected to testing. The results of the testing demonstrate that the converter is both feasible and effective. The experimental findings illustrate its capacity to manage vast voltage ranges while upholding high efficiency. In addition, the converter utilizes a frequency switching modulation (FSM) to connect with a photovoltaic (PV) panel and control the high output voltage. This demonstrates its adaptability in renewable energy applications. The validation is in accordance with theoretical predictions, demonstrating the converter’s high-efficiency performance and versatility.
Keywords: LLC converter; resonant; wide voltage; gain; rectifier LLC converter; resonant; wide voltage; gain; rectifier

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MDPI and ACS Style

Alaql, F.; Alfraidi, W.; Alhatlani, A.; Al-Shamma’a, A.A.; Hussein Farh, H.M.; Allehyani, A. A Detailed Analysis and Gain Derivation of Reconfigurable Voltage Rectifier-Based LLC Converter. Electronics 2024, 13, 3788. https://doi.org/10.3390/electronics13193788

AMA Style

Alaql F, Alfraidi W, Alhatlani A, Al-Shamma’a AA, Hussein Farh HM, Allehyani A. A Detailed Analysis and Gain Derivation of Reconfigurable Voltage Rectifier-Based LLC Converter. Electronics. 2024; 13(19):3788. https://doi.org/10.3390/electronics13193788

Chicago/Turabian Style

Alaql, Fahad, Walied Alfraidi, Abdullah Alhatlani, Abdullrahman A. Al-Shamma’a, Hassan M. Hussein Farh, and Ahmed Allehyani. 2024. "A Detailed Analysis and Gain Derivation of Reconfigurable Voltage Rectifier-Based LLC Converter" Electronics 13, no. 19: 3788. https://doi.org/10.3390/electronics13193788

APA Style

Alaql, F., Alfraidi, W., Alhatlani, A., Al-Shamma’a, A. A., Hussein Farh, H. M., & Allehyani, A. (2024). A Detailed Analysis and Gain Derivation of Reconfigurable Voltage Rectifier-Based LLC Converter. Electronics, 13(19), 3788. https://doi.org/10.3390/electronics13193788

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