| 相控式消弧线圈退出后电压振荡现象分析 |
| |
| 引用本文： | 徐波,彭耀辉,蔡翔.相控式消弧线圈退出后电压振荡现象分析[J].上海电力学院学报,2019,35(4):345-348,366. |
| |
| 作者姓名： | 徐波 彭耀辉 蔡翔 |
| |
| 作者单位： | 上海电力学院,上海电力学院,上海蓝瑞电气有限公司 |
| |
| 基金项目： | 上海高校青年教师培养资助计划（ZZsdl15092）；上海电力学院人才引进基金（K2014-044）。 |
| |
| 摘 要： | 单相接地故障消除之后，相控式消弧线圈应退出运行，不再输出补偿电流，中性点电压恢复至正常状态。但在某变电站的录波记录中发现，系统中性点电压呈现出低频振荡的现象。为此，采用电工学的基本原理，分析了产生低频振荡的原因，并通过PSCAD/EMTDC仿真证实了该理论分析的结果。最后，提出了抑制低频振荡的措施。
|
| 关 键 词： | 相控式消弧线圈 单相接地故障 谐振接地 中性点电压振荡 |
| 收稿时间： | 2018/4/18 0:00:00 |
Analysis of Voltage Oscillation after the Phase-controlled Arc Suppression Coil Exiting |
| |
| XU Bo,PENG Yaohui and CAI Xiang.Analysis of Voltage Oscillation after the Phase-controlled Arc Suppression Coil Exiting[J].Journal of Shanghai University of Electric Power,2019,35(4):345-348,366. |
| |
| Authors: | XU Bo PENG Yaohui and CAI Xiang |
| |
| Affiliation: | Shanghai University of Electric Power, Shanghai 200090, China,Shanghai University of Electric Power, Shanghai 200090, China and Shanghai Lanrui Electric Co., Ltd., Shanghai 201613, China |
| |
| Abstract: | After a single-phase-to-ground fault is eliminated,the phase-controlled arc suppression coil should exit without any compensation currents.Then,the neutral voltage will return to normal state.However,the phenomenon of low-frequency oscillation of the neutral voltage is found in the recording of a substation.For this reason,the basic circuit principles are adopted,the causes of low frequency oscillation are analyzed,and the suppression methods are put forward.Finally,the theoretical analysis is verified through PSCAD/EMTDC simulation. |
| |
| Keywords: | phase-controlled arc suppression coil single-phase-to-ground fault resonant grounding oscillation of the neutral voltage |
|
| 点击此处可从《上海电力学院学报》浏览原始摘要信息 |
|
点击此处可从《上海电力学院学报》下载全文 |
|
