| 高压直流输电直流侧谐波电流计算 |
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| 引用本文： | 王峰,朱光友,游广增,徐政,黄莹,黎小林. 高压直流输电直流侧谐波电流计算[J]. 高电压技术, 2009, 35(9): 2275-2279 |
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| 作者姓名： | 王峰 朱光友 游广增 徐政 黄莹 黎小林 |
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| 作者单位： | 浙江大学电气工程学院,杭州,310027;南方电网技术研究中心,广州,510623 |
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| 基金项目： | 国家“十一五”科技支撑计划重大项目(2006BAA02A21)~~ |
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| 摘 要： | 为计算高压直流输电工程的等效干扰电流,详细描述了给定两侧三脉动谐波电压源情况下如何计算沿线各次谐波电流的一套计算流程,包括直接流过直流极导线、接地极线路的谐波电流和感应到直流线路、接地极线路地线中的谐波电流。该计算流程分为2步:第1步,将直流侧系统作为一个整体用求解一般性电网络的节点分析法计算,在计算节点导纳矩阵时,直流输电线路作为一个网络元件采用全相耦合模型;第2步,在求得直流输电线路端口上的谐波电压之后,将直流线路分解为正序与零序网络,分别计算沿线各次谐波电流的正序与零序分量,然后再将正序与零序分量合成为整体谐波电流。在同等条件下,比较该算法的结果与电磁暂态仿真程序PSCAD/EMTDC的结果,两者基本一致,验证了所提算法的正确性。
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| 关 键 词： | 高压直流输电 三脉动模型 谐波 等效干扰电流 直流线路 直流滤波器 |
Calculation of DC Side Harmonic Currents for HVDC Transmission |
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| WANG Feng , ZHU Guang-you , YOU Guang-zeng , XU Zheng , HUANG Ying , LI Xiao-lin. Calculation of DC Side Harmonic Currents for HVDC Transmission[J]. High Voltage Engineering, 2009, 35(9): 2275-2279 |
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| Authors: | WANG Feng ZHU Guang-you YOU Guang-zeng XU Zheng HUANG Ying LI Xiao-lin |
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| Affiliation: | 1. Department of Electric Engineering;Zhejiang University;Hangzhou 310027;China;2. China Southern Power Grid Technology Research Center;Guangzhou 510623;China |
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| Abstract: | Based on the three-pulse harmonic voltages of the rectifier side and the inverter side,this paper described an approach to calculate the DC side harmonic currents in HVDC systems,including the harmonic currents flowing directly in the DC line and the grounding electrode line,as well as the harmonic currents induced in their screening wires. The approach included two steps as follows: Firstly,the DC side system was treated as a general electric network and was analyzed by the nodal analysis method;the DC tra... |
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| Keywords: | HVDC three-pulse model harmonics equivalent interference current DC line DC filter |
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