| 地铁24脉波整流器空载直流侧谐波特性分析 |
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| 引用本文： | 全恒立,刘志刚,张钢,陈杰.地铁24脉波整流器空载直流侧谐波特性分析[J].铁道学报,2012(3):28-33. |
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| 作者姓名： | 全恒立 刘志刚 张钢 陈杰 |
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| 作者单位： | 北京交通大学电气工程学院;清华大学电机工程与应用电子技术系 |
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| 基金项目： | 国家科技支撑计划(2006BAG02B06) |
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| 摘 要： | 在分析城市轨道供电系统24脉波整流器的工作原理及理想情况下直流侧空载电压的谐波频谱构成的基础上,讨论电网电压不对称和交流电压存在移相误差等因素对整流器直流侧的影响,得到结论:电网电压的负序分量会在整流器的直流侧引入2次低频谐波电压分量,移相角度的误差则会带来12次谐波含量;并以仿真实验进行验证。结论可为直流接触网侧相关设备的滤波参数选择提供参考。
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| 关 键 词： | 城市轨道交通 牵引供电 移相变压器 负序电压 谐波分析 |
Research on DC Floating Voltage of 24 Pulse Phase-shifting Rectifiers |
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| QUAN Heng-li,LIU Zhi-gang,ZHANG Gang,CHEN Jie.Research on DC Floating Voltage of 24 Pulse Phase-shifting Rectifiers[J].Journal of the China railway Society,2012(3):28-33. |
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| Authors: | QUAN Heng-li LIU Zhi-gang ZHANG Gang CHEN Jie |
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| Institution: | 1(1.School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China; 2.Department of Electrical Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The working principle of the 24 pulse phase-shifting traction rectifier and its dc voltage spectrum under ideal conditions were analyzed.The problems caused by negative-sequence voltages and the error of phase-shifting were also discussed.The results show as follows: The negative-sequence components of the mains voltage produce the secondary low-frequency harmonic components on the DC side of the rectifiers;the extra twelfth harmonics are proved to be the result of the error of phase-shifting.Simulation was done to verify these theoretical hypotheses. |
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| Keywords: | urban rail traffic traction power supply phase-shifting transformer negative-sequence voltage harmonic analysis |
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