Master’s Thesis Explores Advanced DC-DC Converter Design at University of Technology
“Design, Analysis, and Implementation of High Gain DC-DC Converter Using Modified Y-Source Network”
The Department of Electrical Engineering at the University of Technology awarded a master’s degree to Ahmed Hussein Mutlak for his thesis titled “Design, Analysis, and Implementation of High Gain DC-DC Converter Using Modified Y-Source Network.”
In this project, the researcher proposed a novel high-gain DC-DC converter leveraging a modified Y-source network based on a coupled inductor technique. The proposed converter demonstrated a significant voltage boost, achieving more than three times the output of a traditional Y-source converter. This improvement was accomplished with fewer components, reduced duty cycles, and minimized switching stresses.
The design incorporated a clamping circuit to recover leakage energy and eliminate leakage inductance, which reduced voltage spikes on switches, minimized power loss, and enhanced converter efficiency. Moreover, the converter drew steady current from the input port, with less than 5% deviation from the average input current.
The proposed circuit was compared to other converter designs in terms of component count, voltage gain, and stress on circuit elements. A comprehensive mathematical model was developed using Mathematica 11.2, and the proposed design was verified through simulations conducted using PLECS 4.2.2. The simulation results showed superior performance compared to existing DC-DC converters in terms of efficiency, voltage stress, and capability enhancement.
Additionally, the design was implemented practically using a 200-watt load, and the experimental results were compared with theoretical calculations and simulation outcomes. The results confirmed the feasibility and high performance of the proposed model.
The discussion panel consisted of:
- Prof. Dr. Turki Kahyoush Hassan – Chair
- Asst. Prof. Dr. Mohammed Moenes Ezzedine – Member
- Asst. Prof. Dr. Fadhil Abbas Hassan – Member
- Asst. Prof. Dr. Ouday Ali Ahmed – Member and Supervisor
This study represents a significant step forward in DC-DC converter technology, offering solutions for efficient and high-gain energy conversion in modern power systems.
