| 基于MMC的铁路功率调节器环流抑制策略 |
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| 引用本文： | 王之赫,荆龙,吴学智,李金科,王卫安. 基于MMC的铁路功率调节器环流抑制策略[J]. 电源学报, 2014, 12(6): 79-85 |
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| 作者姓名： | 王之赫 荆龙 吴学智 李金科 王卫安 |
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| 作者单位： | 北京交通大学国家能源主动配电网技术研发中心,北京交通大学国家能源主动配电网技术研发中心,北京交通大学国家能源主动配电网技术研发中心,北京交通大学国家能源主动配电网技术研发中心,南车株洲电力机车研究所有限公司 |
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| 基金项目： | 国家国际科技合作专项项目(2013DFA60930)；中央高校基本科研业务费(2010JBZ002) |
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| 摘 要： | 针对铁路电力机车负荷对电网带来的电能质量问题，多电平铁路功率调节器（MRPC）能够满足高压大功率应用领域的要求，实现电能质量的改善和调节。然而，MRPC内部存在的桥臂环流将影响MRPC输出特性。本文首先建立了三桥臂MRPC环流模型，分析了MRPC环流、桥臂电流和交流输出电流之间的数学关系，在此基础上对MRPC环流机理和构成进行了分析。为了抑制MRPC环流，提出了基于比例谐振调节器的环流抑制策略，该方法可以降低补偿延时，改善环流抑制效果。最后，通过RT-LAB实时仿真平台，对三桥臂MRPC环流抑制策略进行了仿真验证，结果验证了该方法可以显著抑制桥臂环流，使得MRPC系统稳定运行。
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| 关 键 词： | 模块化多电平变流器；铁路功率调节器；环流抑制策略 |
| 收稿时间： | 2014-06-27 |
| 修稿时间： | 2014-09-28 |
Circulating Current Suppressing Strategy of Railway Power Static Conditioner Based on Modular Multilevel Converter |
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| WANG Zhi-he,JING Long,WU Xue-zhi,LI Jin-ke and WANG Wei-an. Circulating Current Suppressing Strategy of Railway Power Static Conditioner Based on Modular Multilevel Converter[J]. Journal of Power Supply, 2014, 12(6): 79-85 |
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| Authors: | WANG Zhi-he JING Long WU Xue-zhi LI Jin-ke WANG Wei-an |
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| Affiliation: | National Active Distribution Network Technology Research Center, Beijing Jiaotong University,National Active Distribution Network Technology Research Center, Beijing Jiaotong University,National Active Distribution Network Technology Research Center, Beijing Jiaotong University,National Active Distribution Network Technology Research Center, Beijing Jiaotong University,CSR ZhuZhou Electric Locomotive Research Institute Co.,Ltd. |
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| Abstract: | For the problems of power quality generated by railway locomotives, RPC based on MMC can meet the demand for high-voltage and high-power areas. However, Circulating current of MRPC may have disadvantages over output characteristics of MRPC. In this paper,Firstly circulating current model of three-arm MRPC is established to analyze mathematical relationships of diffident kinds of currents. Then the components and principle of circulating current are given. For the purpose of suppressing circulating current, A method based on PR conditioner is proposed. This method can improve the effecf and reduce the delay for Compensation. Finally, we conclude the advantages of this method and use the real-time simulation of RT-LAB to prove the feasibility and effectiveness of this method. |
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| Keywords: | MMC RPC circulating current suppressing strategy |
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