电器与能效管理技术 ›› 2025, Vol. 0 ›› Issue (4): 26-30.doi: 10.16628/j.cnki.2095-8188.2025.04.004

• 研究与分析 • 上一篇    下一篇

推挽型电力电子变压器的仿真研究

武建松1, 刘宏勋2, 骆立实1, 赵波1, 李维江1, 张桂芳3   

  1. 1.国网冀北电力有限公司 超高压分公司 生产管控中心, 北京 102488
    2.河北工业大学 电气工程学院, 天津 300401
    3.国网冀北电力有限公司 超高压分公司 输电检修中心, 北京 102488
  • 收稿日期:2025-01-10 出版日期:2025-04-30 发布日期:2025-06-04
  • 作者简介:武建松(1989—),男,工程师,主要从事输变电设备与电力电子研究工作。|刘宏勋(1973—),男,副教授,研究方向为电力系统与电力电子。|骆立实(1977—),男,高级工程师,主要从事电力系统及其自动化研究工作。

Simulation Research on Push-Pull Power Electronic Transformer

WU Jiansong1, LIU Hongxun2, LUO Lishi1, ZHAO Bo1, LI Weijiang1, ZHANG Guifang3   

  1. 1. Production Control Center, Ultra High Voltage Branch, State Grid Jibei Electric Power Co., Ltd., Beijing 102488, China
    2. School of Electrical Engineering, Hebei University of Technology, Tianjin 300401, China
    3. Transmission Line Maintenance Center, Ultra High Voltage Branch, State Grid Jibei Electric Power Co., Ltd., Beijing 102488, China
  • Received:2025-01-10 Online:2025-04-30 Published:2025-06-04

摘要:

随着大量非线性负荷接入电力系统,电能质量问题日益突出,传统电力变压器已无法满足现代电力系统的需求。推挽型电力电子变压器(PET)具有电压隔离、功率因数校正、网侧谐波滤除等改善电能质量的作用。通过拓扑结构推导出推挽型电力电子变压器的数学模型、传递函数和控制策略,并通过MATLAB/Simulink软件进行仿真研究。试验结果表明推挽型PET具有调节电能质量的作用。

关键词: 电能质量, 电力电子变压器, 校正功率因数, 仿真研究

Abstract:

With a large number of nonlinear loads connected to the power system, the problem of power quality has become increasingly prominent, and the traditional power have already been unable to meet the needs of modern power systems. The push-pull power electronic transformer (PET) has the functions of voltage isolation, correcting power factor, and filtering grid harmonics to improve power quality. The mathematical model, transfer function, and control strategy of the push-pull PET are deduced based on the topological structure, and the simulate studies are carried out by the MATLAB/Simulink software. It is shown by the test results that the power quality can be regulated by the push-pull PET.

Key words: power quality, power electronic transformer, correcting power factor, simulation research

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