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| 双输出移相配电变压器抑制输出电压畸变特性 | |
| 引用本文： | 郭 健,金 平,房淑华,等.双输出移相配电变压器抑制输出电压畸变特性[J].南京航空航天大学学报,2012,44(4):445-451. |
| 作者姓名： | 郭 健 金 平 房淑华 等 |
| 作者单位： | 1. 南京航空航天大学自动化学院,南京,210016 2. 东南大学电气工程学院,南京,210096 3. 中电电气集团有限公司,扬中,212211 |
| 摘 要： | 探讨了双输出移相配电变压器抑制输出电压畸变的机理,对变压器谐波阻抗与绕组结构之间的关系进行了研究。通过建立双输出移相变压器的场路耦合模型,对两种不同形式的变压器(双输出移相变压器和Dyn连接变压器)输出电压的谐波特性进行了分析计算,研究结果表明:由于双输出移相变压器可以抑制3倍次、5和7次谐波电流,因此对应的3倍次、5和7次谐波阻抗较低,在带非线性负载情况下输出电压的畸变得到明显改善。 |
| 关 键 词： | 移相变压器 谐波阻抗 场路耦合 电压畸变 |
Reduction Mechanism of Output Voltage Distortion in Dual Output Phase-shift Distribution Transformer |
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| Guo Jian , Jin Ping , Fang Shuhua , Jin Chengxiang , Li Ning.Reduction Mechanism of Output Voltage Distortion in Dual Output Phase-shift Distribution Transformer[J].Journal of Nanjing University of Aeronautics & Astronautics,2012,44(4):445-451. | |
| Authors: | Guo Jian Jin Ping Fang Shuhua Jin Chengxiang Li Ning |
| Institution: | 1.College of Automation Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing,210016,China;2.College of Electrical Engineering,Southeast University,Nanjing,210096,China;3.Zhongdian Electric Group Co.Ltd.,Yangzhong,212211,China) |
| Abstract: | The mechanism of dual output phase-shift distribution transformer(DOPSDT) for reducing the output voltage distortion,and the relationship between the transformer harmonic impedance and windings layout structure are disaussed.Based on the field-circuit coupled method,the output voltage distortions of Dyn transformer and DOPSDT are calculated.Results show that since the 3rd,5th and 7th load current harmonic fluxes are cancelled on the secondary side,the corresponding harmonic impedance of DOPSDT are lower,and the corresponding harmonic voltage distortions of DOPSDT are also greatly lower than the distortions of the Dyn transformer. |
| Keywords: | shift-phase transformer harmonic impedance field-circuit coupled method voltage distortion |
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