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Isolation-dependent applications require a transformer with high efficiency, low magnetizing current, and anti-DC bias capability. The kilohertz planar negative magnetic reluctance structure is used to achieve this target with its magnetic-frequency variation property, which reduces the magnetic reluctance of the fundamental component. However, this design cannot be applied to low-frequency transformers owing to the high loss caused by its limited self-inductance and quality factor. To solve this problem, a pole-wrapped negative equivalent magnetic reluctance (PNEMR) structure is presented. The proposed design employed a copper-based PNEMR structure wrapped around the magnetic poles to enhance the fundamental flux and suppress the DC component of flux. Accordingly, the magnetizing current is reduced, and the isolation transformer is less susceptible to the DC bias. The proposed design can simultaneously improve the anti-DC magnetic bias capability, efficiency, and power factor of the transformers. To verify the effectiveness of the proposed design, a 10 kW C-core PNEMR structure-based transformer for isolation-dependent applications was constructed and compared to the generalized structures and transformers with planar negative magnetic reluctance structures. Results indicate that the PNEMR-based transformer can enhance the efficiency and power factor from 96.1% and 0.87 to 96.6% and 0.93, respectively, under full load conditions.
Y Xiang, H S H Chung, H Lin. Light implementation scheme of ANN-based explicit model-predictive control for DC-DC power converters. IEEE Transactions on Industrial Informatics, 2024, 20(3): 4065-4078.
G Song, B Cao, L Chang. Review of grid-forming inverters in support of power system operation. Chinese Journal of Electrical Engineering, 2022, 8(1): 1-15.
S Wang, L Zhou, T Wang, et al. Fast protection strategy for DC transmission lines of MMC-based MT-HVDC grid. Chinese Journal of Electrical Engineering, 2021, 7(2): 83-92.
J Zhang, Y Zhang, J Zhou, et al. Control of a hybrid modular solid-state transformer for uninterrupted power supply under MVDC short-circuit fault. IEEE Transactions on Industrial Electronics, 2023, 70(1): 76-87.
H Pezeshki, P J Wolfs, G Ledwich. Impact of high PV penetration on distribution transformer insulation life. IEEE Transactions on Power Delivery, 2014, 29(3): 1212-1220.
M R Sarker, D J Olsen, M A Ortega-Vazquez. Co-optimization of distribution transformer aging and energy arbitrage using electric vehicles. IEEE Transactions on Smart Grid, 2017, 8(6): 2712-2722.
A K Paul. Application prospects of hybrid magnetic circuits in high frequency power transformers. IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2023, 4(4): 1151-1158.
G Franceschini, E Lorenzani, G Buticchi. Saturation compensation strategy for grid connected converters based on line frequency transformers. IEEE Transactions on Energy Conversion, 2012, 27(2): 229-237.
S S Chakraborty, S Dey, K Hatua. Design of a three-winding transformer for power decoupling of a three-port series resonant converter for an integrated on-board EV charger. IEEE Transactions on Power Electronics, 2023, 38(11): 14262-14273.
A Cremasco, D Rothmund, M Curti, et al. Hybrid foil-litz windings for highly efficient and compact medium-frequency transformers. IEEE Open Journal of Power Electronics, 2023, 4: 137-147.
Z Zhao, F Liu, Z Cheng, et al. Measurements and calculation of core-based B-H curve and magnetizing current in DC-biased transformers. IEEE Transactions on Applied Superconductivity, 2010, 20(3): 1131-1134.
L Shu, W Chen, Z Song. Prediction method of DC bias in DC-DC dual-active-bridge converter. CPSS Transactions on Power Electronics and Applications, 2019, 4(2): 152-162.
Z Chen, H Li, L Liu, et al. DC bias treatment of hybrid type transformer based on magnetic flux modulation mechanism. IEEE Transactions on Magnetics, 2019, 55(6): 1-4.
B Bai, Z Chen, D Chen. DC bias elimination and integrated magnetic technology in power transformer. IEEE Transactions on Magnetics, 2015, 51(11): 1-4.
S Xu, D Chen, H Zeng. A magnetic saturation suppression scheme of the output line-frequency transformer in photovoltaic inverter. IECON 2020 the 46th Annual Conference of the IEEE Industrial Electronics Society, Singapore, 2020: 3643-3647.
P Yao, X Jiang, P Xue, et al. Flux balancing control of ungapped nanocrystalline core-based transformer in dual active bridge converters. IEEE Transactions on Power Electronics, 2020, 35(11): 11463-11474.
K Sakuma, K Shigeuchi, J Xu, et al. Decoupling control method for eliminating DC bias flux of high frequency transformer in a bidirectional isolated AC/DC converter. 2018 International Power Electronics Conference, Niigata, Japan, 2018: 3522-3527.
Y Chen, W Fu, H Lin, et al. A passive negative magnetic reluctance structure-based kHz transformer for improved DC magnetic bias withstanding. IEEE Transactions on Power Electronics, 2023, 38(1): 717-727.
Z Xie, X Lin, Z Zhang, et al. Advanced DC bias suppression strategy based on finite DC blocking devices. IEEE Transactions on Power Delivery, 2017, 32(6): 2500-2509.
P Yao, X Jiang, P Xue, et al. Design optimization of medium-frequency transformer for DAB converters with DC bias capacity. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021, 9(4): 5043-5054.
C Lu, C Rong, X Huang, et al. Investigation of negative and near-zero permeability metamaterials for increased efficiency and reduced electromagnetic field leakage in a wireless power transfer system. IEEE Transactions on Electromagnetic Compatibility, 2010, 61(5): 1438-1446.
J Zhou, P Zhang, J Han, et al. Metamaterials and metasurfaces for wireless power transfer and energy harvesting. Proceedings of the IEEE, 2022, 110(1): 31-55.
H Wang, W Wang, X Chen, et al. Analysis and design of kHz-metamaterial for wireless power transfer. IEEE Transactions on Magnetics, 2020, 56(8): 1-5.
W Adepoju, I Bhattacharya, M Sanyaolu, et al. Critical review of recent advancement in metamaterial design for wireless power transfer. IEEE Access, 2022, 10: 42699-42726.
R Das, A Basir, H Yoo. A metamaterial-coupled wireless power transfer system based on cubic high-dielectric resonators. IEEE Transactions on Industrial Electronics, 2019, 66(9): 7397-7406.
Z Gong, S Yang. One-dimensional stacking miniaturized low-frequency metamaterial bulk for near-field applications. Journal of Applied Physics, 2020, 127(11): 114901.
Y Chen, X Zhao, S Niu, et al. A transmitter-embedded metasurface-based wireless power transfer system for extended-distance applications. IEEE Transactions on Power Electronics, 2024, 39(1): 1762-1772.
G Delette, U Soupremanien, S Loudot. Thermal management design of transformers for dual active bridge power converters. IEEE Transactions on Power Electronics, 2022, 37(7): 8301-8309.
P Czyz, T Guillod, D Zhang, et al. Analysis of the performance limits of 166 kW/7 kV air- and magnetic-core medium-voltage medium-frequency transformers for 1:1-DCX applications. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022, 10(3): 2989-3012.
K N Romaric, D Liu, B Du. Investigation on vibration characteristics of amorphous metal alloy core dry-type distribution transformer. CES Transactions on Electrical Machines and Systems, 2022, 6(3): 324-331.
B N Rao, Y Suresh, A K Panda, et al. Development of cascaded multilevel inverter based active power filter with reduced transformers. CPSS Transactions on Power Electronics and Applications, 2020, 5(2): 147-157.
Z Li, W Han, Z Xin, et al. A review of magnetic core materials, core loss modeling and measurements in high-power high-frequency transformers. CPSS Transactions on Power Electronics and Applications, 2022, 7(4): 359-373.
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