Akademik Veri Yönetim Sistemi
Journal of Electrical Engineering and Technology, 2025 (SCI-Expanded)
In split-core transformers, the auxiliary core part is designed with air gap to prevent saturation-related problems. This air gap can cause additional problems such as fringing flux and abnormal temperature increase. In order to minimize these problems and further reveal the advantages of the split-core structure, in this study, a novel hybrid-core structure is proposed for the split-core design structure. In the proposed hybrid core structure, instead of air gaps in the auxiliary core in the traditional split-core design, a second core material with different flux density and permeability than the main core material is added at different locations in the auxiliary core. In the study, conventional core, split-core and hybrid-core inverter transformers are investigated theoretically and modeled with the Finite Element Analysis (FEA) method. The effects of single-core, split-core, hybrid core-1 and hybrid core-2 structures on the inverter performance according to parameters such as voltage-current waveforms on the load and transformer losses are examined comparatively. The results obtained show that proposed hybrid core-2 provides better results in terms of voltage and current waveform quality, harmonic content and total core loss.