| 矢量电流控制的电压源换流器式高压直流输电系统动态特性分析 |
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| 引用本文： | 魏晓云,孙辉,徐凤阁,马千.矢量电流控制的电压源换流器式高压直流输电系统动态特性分析[J].中国电机工程学报,2010(6). |
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| 作者姓名： | 魏晓云 孙辉 徐凤阁 马千 |
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| 作者单位： | 大连理工大学电气工程与应用电子技术系;大连供电公司;辽宁省电力公司调度通讯部; |
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| 摘 要： | 通常在交流系统故障时,公共耦合点电压不仅幅值会发生变化,同时还伴随着相角跳变。基于电磁暂态仿真软件PSCAD/EMTDC,建立了电压源换流器式高压直流输电(voltage source converter-high voltage direct current transmission,VSC-HVDC)模型及电流矢量控制器(vector current controller,VCC)、双矢量电流控制器(dual vector current controller,DVCC)模型,分别就对称三相短路故障、不对称两相短路故障及不同相位跳变角情况进行仿真分析。研究了系统故障条件下,对VSC-HVDC分别采用VCC、DVCC时的系统动态特性。结果表明,DVCC能更好地抑制直流电压的2倍频振荡,但其动态特性比VCC差,且对相角跳变更敏感,可能会弱化VSC-HVDC应有的技术优势。
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| 关 键 词： | 高压直流输电 电压源换流器 矢量电流控制 动态特性 |
Dynamic Performance Analysis of Vector Current Controllers for VSC-HVDC |
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| WEI Xiao-yun,SUN Hui,XU Feng-ge,MA Qian.Dynamic Performance Analysis of Vector Current Controllers for VSC-HVDC[J].Proceedings of the CSEE,2010(6). |
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| Authors: | WEI Xiao-yun SUN Hui XU Feng-ge MA Qian |
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| Affiliation: | WEI Xiao-yun1,SUN Hui1,XU Feng-ge2,MA Qian3 (1. Department of Electrical , Electronics Engineering,DaLian University of Technology,Dalian 116024,Liaoning Province,China,2. Dalian Power Supply Company,Dalian 116011,3. Dispatching Communication Center,Liaoning Power Company,Shenyang 110006,China) |
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| Abstract: | When the AC system is faulted,the voltage magnitude is varied at point-of-common coupling (PCC),normally accompanied with phase angle jump. Voltage source converter-high voltage direct current transmission (VSC-HVDC) systems with vector current controller (VCC) and dual vector current controller (DVCC) were presented and analyzed under balanced and unbalanced fault considering phase angle jump in PSCAD/EMTDC. The dynamic performance of VSC-HVDC with VCC and DVCC was investigated. The results show that DVCC ... |
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| Keywords: | high voltage direct current transmission voltage source converter (VSC) vector current control (VCC) dynamic performance |
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