新型磁控变压器的特性分析
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郑州大学电气工程学院

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基金项目:

国家自然科学基金(52107170)


Characteristic analysis of new magnetron transformer
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Affiliation:

1.郑州大学电气工程学院;2.School of Electrical Engineering,Zhengzhou University

Fund Project:

National Natural Science Foundation of China( 52107170)

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    摘要:

    传统的有载调压技术会存在产生电弧、响应速度慢、调节精度低等不足,影响变压器运行可靠性。新型电力电子变压器虽具有无弧、响应快的优势,但其损耗高、成本高。文中提出一种新型单相四柱式磁控变压器结构,由磁控电抗器和变压器串联连接组成。根据磁控电抗器拓扑结构分析该磁控变压器工作原理,并推导出电路方程与电磁方程。该结构的右旁轭可以提供交流磁通回路,不受直流磁通干扰。利用Ansys软件Maxwell与Simplorer进行模型场路耦合多物理域联合仿真分析其调压能力,并在Simulink中对输出电压进行谐波分析。验证了该新型磁控变压器可以无弧无级连续平滑地调节输出电压,谐波含量低。

    Abstract:

    The traditional on-load voltage regulation technology has deficiencies such as slow answer speed and low regulation accuracy, which affect the reliability of transformer operation. Although the new power electronic transformer has the advantages of no arc and fast response, but it has high loss and high cost. Changes can cause voltage fluctuations, which can adversely affect the power system. A new magnetron transformer structure is proposed in this paper, which consists of a magnetron reactor and a transformer connected in series. According to the topological structure of the magnetron reactor, the working principle of the magnetron transformer is analyzed, and the circuit equation and the electromagnetic equation are deduced. The right side yoke of the structure provides an AC flux loop that is not interfered by the DC flux. Maxwell and Simplorer in Ansys software are used to conduct multi-physical domain co-simulation to analyze the voltage regulation ability of the model field path coupling, and the harmonic analysis of the output voltage is carried out in Simulink. It is verified that the new magnetic transformer can adjust the output voltage smoothly without arc and without step, and the harmonic content is low.

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  • 收稿日期:2022-06-02
  • 最后修改日期:2022-08-02
  • 录用日期:2022-08-15
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