| 双输出移相配电变压器输入谐波电流抑制特性分析(英文) |
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| 引用本文： | 郭健,林鹤云,房淑华.双输出移相配电变压器输入谐波电流抑制特性分析(英文)[J].东南大学学报,2012(2):151-155. |
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| 作者姓名： | 郭健 林鹤云 房淑华 |
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| 作者单位： | 南京航空航天大学自动化学院;东南大学电气工程学院 |
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| 基金项目： | The Program for Special Talent in Six Fields of Jiangsu Province (2011-ZBZZ-016);the Postdoctoral Science Foundation of Jiangsu Province (No. 0902038C) |
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| 摘 要： | 提出了一种基于电磁滤波原理的双输出移相配电变压器. 首先,研究了其结构布置特征、绕组联接方式及实现特定移相角的匝数匹配关系. 其次,推导了该变压器的谐波磁势平衡方程,论述了变压器实现电磁滤波的机理. 通过建立该变压器的场路耦合模型,对不同非线性负载情况下的谐波抑制特性进行了分析计算. 研究结果表明,在严重的非线性负载情况下,双输出移相变压器仍可以有效抑制一次侧绕组输入电流的谐波; 结合零序磁通消除技术和相移技术,该变压器可以将配电系统中主要存在的 3,5,7,17 和 19 倍次谐波电流抑制在二次绕组中.
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| 关 键 词： | 移相变压器 谐波抑制 电磁滤波 场路耦合 |
Analysis of input harmonic current mitigating performance in dual output phase-shift distribution transformer |
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| Guo Jian,Lin Heyun,Fang Shuhua.Analysis of input harmonic current mitigating performance in dual output phase-shift distribution transformer[J].Journal of Southeast University(English Edition),2012(2):151-155. |
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| Authors: | Guo Jian Lin Heyun Fang Shuhua |
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| Institution: | 1School of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)(2 School of Electrical Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | A novel dual output phase-shift distribution transformer(DOPSDT) is proposed based on the electromagnetic filtering theory.First,its structural characteristics,winding connection mode and turn number ratio for special phase shifting are investigated.Secondly,the balance formulation of harmonic magneto-motive forces is derived and the electromagnetic filtering principle of the DOPSDT is introduced.The harmonic mitigating performance under different nonlinear load conditions are also analyzed using the field-circuit coupled method.The analysis results show that the DOPSDT can mitigate the primary current distortion even under severe nonlinear load conditions.By applying the zero sequence flux cancellation and phase-shift techniques at their secondary windings,the DOPSDT can significantly reduce the 3rd,5th,7th,9th,15th,17th and 19th harmonics within its secondary windings. |
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| Keywords: | shift-phase transformer harmonic mitigating electromagnetic filtering field-circuit coupled method |
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