A Novel High Insulation 100 kW Medium Frequency Transformer

被引：21

作者：

Guo, Zhicheng ^{[1
]}

Rajendran, Sanjay ^{[2
]}

Tangudu, Jagadeesh ^{[3
]}

Khakpour, Yasmin ^{[3
]}

Taylor, Stephen ^{[3
]}

Xing, Lei ^{[3
]}

Xu, Yue ^{[4
]}

Feng, Xianyong ^{[4
]}

Huang, Alex Q. ^{[1
]}

机构：

[1] Univ Texas Austin, Elect & Comp Engn, Austin, TX 78712 USA

[2] Univ Texas Austin, Elect & Comp Engn, Austin, TX 78758 USA

[3] Raytheon Technol Res Ctr, E Hartford, CT 06108 USA

[4] Univ Texas Austin, Ctr Electromech, Austin, TX 78758 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2023年 / 38卷 / 01期

关键词：

Cooling; medium-frequency transformer (MFT); optimal design; partial discharge (PD); solid-state transformer (SST); VOLTAGE;

D O I：

10.1109/TPEL.2022.3205646

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High voltage insulation and thermal management are the two major challenges in a high-power medium frequency transformer (MFT) design. This letter proposes novel insulation and cooling structure with potted windings in a 100 kW MFT with two FINEMET FT-3TL magnetic cores and parallel-concentric winding structure. For the first time, a three-dimensional printed bobbin with heatsink fins is demonstrated. The 100 kW MFT achieves a power density of 10.6 kW/L and a partial discharge inception voltage of 20 kV peak. The MFT is applied in a dual active bridge based medium voltage solid state transformer, achieving a peak efficiency of 98.2% at 40 kW and 97.5% at 100 kW. The MFT itself has a 99.735% efficiency with superior thermal performance at 100 kW output power.

引用

页码：112 / 117

页数：6

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