基于两级统一控制的新型级联H桥电力电子变压器

谭芳堃; 尤燕飞; 王义勇; 乔廷立; 刘剑

doi:10.19912/j.0254-0096.tynxb.2025-0548

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (8) : 425-435. DOI: 10.19912/j.0254-0096.tynxb.2025-0548

基于两级统一控制的新型级联H桥电力电子变压器

谭芳堃¹, 尤燕飞², 王义勇³, 乔廷立³, 刘剑¹

作者信息 +

NOVEL CASCADED H-BRIDGE POWER ELECTRONIC TRANSFORMER BASED ON TWO-STAGE UNIFIED CONTROL

Tan Fangkun¹, You Yanfei², Wang Yiyong³, Qiao Tingli³, Liu Jian¹

Author information +

文章历史 +

摘要

提出一种基于两级统一控制的新型级联H桥型电力电子变压器（CHB-PET）,其中DC/DC隔离级采用谐振推挽结构,其相比于传统方案开关管数量更少。此外,两级采用基于隔离级开环调制的统一控制降低系统控制复杂性,且避免独立控制中的级联稳定性问题,针对所提方案的工作原理、等效模型、控制设计以及系统评估进行描述与分析,评估结果表明所提CHB-PET相比于传统方案在成本、效率与稳定性等方面有所提升,在中间母线电压均衡和装置前期调试流程方面表现有所下降。仿真和实验结果验证了所提CHB-PET方案的有效性。

Abstract

This paper proposes a new cascaded H-bridge power electronic transformer（CHB-PET） based on two-level unified control. The DC/DC isolation stage adopts a resonant push-pull structure, which has fewer switch tubes than the traditional scheme. In addition, the two-level unified control based on the open-loop modulation of the isolation stage reduces the system control complexity and avoids the cascading stability problem in independent control. This paper describes and analyzes the working principle, equivalent model, control design, and system evaluation of the proposed scheme. The evaluation results show that the proposed CHB-PET has improved in terms of cost, efficiency, and stability compared to the traditional scheme, but decreased in terms of intermediate bus voltage balance and device pre-commissioning. Simulation and experimental results verify the effectiveness of the proposed CHB-PET scheme.

导出引用

谭芳堃, 尤燕飞, 王义勇, 乔廷立, 刘剑. 基于两级统一控制的新型级联H桥电力电子变压器[J]. 太阳能学报. 2026, 47(8): 425-435 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0548

Tan Fangkun, You Yanfei, Wang Yiyong, Qiao Tingli, Liu Jian. NOVEL CASCADED H-BRIDGE POWER ELECTRONIC TRANSFORMER BASED ON TWO-STAGE UNIFIED CONTROL[J]. Acta Energiae Solaris Sinica. 2026, 47(8): 425-435 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0548

中图分类号： TM46

参考文献

[1] 赵巍, 王雅坤, 滕甲训, 等. 一种基于三端口能量路由的单级式光储并网系统及其高压穿越技术[J]. 太阳能学报, 2022, 43(8): 91-95.
Zhao W, Wang Y K, Teng J X, et al.A single-stage PV-ESS grid-connected system based on triple-port energy routing and its high-voltage ride-through scheme[J]. Acta Energiae Solaris Sinica, 2022, 43(8): 91-95.
[2] Lin X P, Wu C W, Yao W R, et al.Observer-based fixed-time control for permanent-magnet synchronous motors with parameter uncertainties[J]. IEEE Transactions on Power Electronics, 2023, 38(4): 4335-4344.
[3] 代丽, 王君瑞, 谭露, 等. 基于自适应下垂控制的光储直流微网控制策略研究[J]. 太阳能学报, 2024, 45(8): 154-163.
Dai L, Wang J R, Tan L, et al.Research on control strategy of PV storage DC microgrid based on adaptive droop control[J]. Acta Energiae Solaris Sinica, 2024, 45(8): 154-163.
[4] Lin X P, Xu R Q, Yao W R, et al.Observer-based prescribed performance speed control for PMSMs: a data-driven RBF neural network approach[J]. IEEE Transactions on Industrial Informatics, 2024, 20(5): 7502-7512.
[5] Teng J X, Bu Z M, Sun X F, et al.Common high-frequency bus-based cascaded multilevel solid-state transformer with ripple and unbalance power decoupling channel[J]. IEEE Transactions on Power Electronics, 2022, 37(8): 9345-9361.
[6] Jin Z M, Sulligoi G, Cuzner R, et al.Next-generation shipboard DC power system: introduction smart grid and DC microgrid technologies into maritime electrical netowrks[J]. IEEE Electrification Magazine, 2016, 4(2): 45-57.
[7] Teng J X, Sun X F, Pan Y Z, et al.An inductive-filtering strategy of submodule ripple-power in triple-port MMC-based SST applied to hybrid medium and low voltage AC/DC interface[J]. IEEE Transactions on Power Electronics, 2022, 37(7): 8015-8032.
[8] Beddard A, Barnes M, Preece R.Comparison of detailed modeling techniques for MMC employed on VSC-HVDC schemes[J]. IEEE Transactions on Power Delivery, 2015, 30(2): 579-589.
[9] Tu C M, Xiao F, Lan Z, et al.Analysis and control of a novel modular-based energy router for DC microgrid cluster[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019, 7(1): 331-342.
[10] Wang Z Z, Teng J X, Zhang M, et al.Common-mode voltage suppression strategy for CHB-based motor drive based on topology and modulation optimization[J]. IEEE Transactions on Power Electronics, 2025, 40(1): 1697-1716.
[11] Briz F, Lopez M, Rodriguez A, et al.Modular power electronic transformers: modular multilevel converter versus cascaded H-bridge solutions[J]. IEEE Industrial Electronics Magazine, 2016, 10(4): 6-19.
[12] Chen H, Divan D.Soft-switching solid-state transformer (S4T)[J]. IEEE Transactions on Power Electronics, 2018, 33(4): 2933-2947.
[13] Ronan E R, Sudhoff S D, Glover S F, et al.A power electronic-based distribution transformer[J]. IEEE Transactions on Power Delivery, 2002, 17(2): 537-543.
[14] Zhao T F, Zeng J, Bhattacharya S, et al.An average model of solid state transformer for dynamic system simulation[C]//2009 IEEE Power & Energy Society General Meeting. Calgary, AB, Canada, 2009: 1-8.
[15] Zhao T F, Wang G Y, Zeng J, et al.Voltage and power balance control for a cascaded multilevel solid state transformer[C]//2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition(APEC). Palm Springs, CA, USA, 2010: 761-767.
[16] Teng J X, Sun X F, Zhang M, et al.Low-capacitance CHB-based SST based on resonant push-pull decoupling channel[J]. IEEE Transactions on Industrial Electronics, 2024, 71(3): 2477-2488.
[17] HUANG A Q, CROW M L, HEYDT G T, et al.The future renewable electric energy delivery and management (FREEDM) system: the energy Internet[J]. Proceedings of the IEEE, 2011, 99(1): 133-148.
[18] Teng J X, Sun X F, Liu X L, et al.Power mismatches elimination strategy for MMC-based photovoltaic system and lightweight design[J]. IEEE Transactions on Power Electronics, 2023, 38(9): 11614-11629.
[19] Sami I, Alhosaini W, Khan D, et al.Advancing dual-active-bridge DC-DC converters with a new control strategy based on a double integral super twisting sliding mode control[J]. World Electric Vehicle Journal, 2024, 15(8): 348.
[20] Atanalian S, Sebaaly F, Zgheib R, et al.Real-time implementation of three-phase Z packed U-cell modular multilevel grid-connected converter using CPU and FPGA[J]. Electronics, 2024, 13(11): 2186.
[21] Nardoto A, Encarnação L, Santos W, et al.Enhanced efficiency on ANPC-DAB through adaptive model predictive control[J]. Energies, 2024, 17(1): 12.
[22] Cuma M U, Anvari A D, Savrun M M.A novel solid-state transformer with improved flyback converter equipped with quasi Z-source converter for medium-voltage utility grid[J]. Energies, 2023, 16(6): 2687.
[23] Zhang Y, Liu X D, Li T, et al.A collaborative modulation method of dual-side backflow power optimization and zero-voltage switching for dual active bridge[J]. Energies, 2024, 17(12): 3019.
[24] Ruiz F, Pichardo E, Aly M, et al.A high-performance fractional order controller based on chaotic manta-ray foraging and artificial ecosystem-based optimization algorithms applied to dual active bridge converter[J]. Fractal and Fractional, 2024, 8(6): 332.
[25] Wang Z K, Su X J, Zeng N Y, et al.Overview of isolated bidirectional DC-DC converter topology and switching strategies for electric vehicle applications[J]. Energies, 2024, 17(10): 2434.
[26] Infineon IGBT module.2025 [Online]. [2025-04-10] Available: https://www.infineon.com/cms/cn/product/.
[27] Pan Y Z, Teng J X, Yang C, et al.Capacitance minimization and constraint of CHB power electronic transformer based on switching synchronization hybrid phase-shift modulation method of high frequency link[J]. IEEE Transactions on Power Electronics, 2023, 38(5): 6224-6242.
[28] Tdk capacitors.2025[EB/OL]. [2025-04-10] Available: https://www.tdk-electronics.tdk.com/inf/20/50/ds/MKP_DC_B2568X_ed2.pdf.
[29] KEMET capacitor.2025. [EB/OL]. Available: https://www.kemet.com/en/us/capacitors/film.html
[30] Bahmani M A, Thiringer T, Kharezy M.Design methodology and optimization of a medium-frequency transformer for high-power DC-DC applications[J]. IEEE Transactions on Industry Applications, 2016, 52(5): 4225-4233.
[31] Mogorovic M, Dujic D.100 kW, 10 kHz medium-frequency transformer design optimization and experimental verification[J]. IEEE Transactions on Power Electronics, 2019, 34(2): 1696-1708.
[32] Choi W, Rho K M, Cho B H.Fundamental duty modulation of dual-active-bridge converter for wide-range operation[J]. IEEE Transactions on Power Electronics, 2016, 31(6): 4048-4064.