| 联于弱交流系统的HVDC换相失败研究 |
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| 引用本文： | 黎敬霞,王肩雷,钱晶,李捷.联于弱交流系统的HVDC换相失败研究[J].昆明理工大学学报(理工版),2006,31(2):48-52. |
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| 作者姓名： | 黎敬霞 王肩雷 钱晶 李捷 |
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| 作者单位： | 1. 昆明理工大学,电力工程学院,云南,昆明,650051
2. 昆明理工大学,机电工程学院,云南,昆明,650093 |
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| 基金项目： | 云南省教育厅资助项目;昆明理工大学校科研和校改项目 |
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| 摘 要： | 高压直流输电(HVDC)系统逆变侧换流器处交流系统的强度直接影响HVDC系统的动态性能,换相失败是HVDC系统最常见的故障之一.通过分析逆变器换相失败的机理,归纳了联于弱交流系统的HVDC换相失败的各种影响因素,包括直流电流、换相电抗、换相电压、越前触发角,受端系统不对称等.利用Matlab的Simulink对交直流系统模型的动态特性及换相失败进行了仿真.
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| 关 键 词： | 高压直流输电 弱交流系统 换相失败 逆变器 |
| 文章编号： | 1007-855X(2006)02-0048-05 |
| 收稿时间： | 2005-08-21 |
| 修稿时间： | 2005年8月21日 |
Research on Commutation Failure in HVDC Connected to Weak AC System |
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| LI Jing-xia,WANG Jian-lei,QIAN Jing,LI Jie.Research on Commutation Failure in HVDC Connected to Weak AC System[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2006,31(2):48-52. |
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| Authors: | LI Jing-xia WANG Jian-lei QIAN Jing LI Jie |
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| Affiliation: | 1. Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming Yunnan 650051 ,China; 2. Faculty of Mechanical and Electrical Engineering Kunming University of Science and Technology, Kunming 650093, China |
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| Abstract: | The strength of AC system to which the inverter side of the HVDC is connected directly exerts great influence on the dynamic performance of HVDC.Commutation failure is one of the most common faults in HVDC.The mechanism related to commutation failures has been analyzed to induce various triggering factors such as: DC current,commutation impedance,commutation voltage,leading firing angle and unmatched receiving system etc.It is facilitated by simulations on AC-DC model using Matlab/Simulink. |
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| Keywords: | HVDC transmission weak AC system commutation failure inverter |
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