|本期目录/Table of Contents|

[1]马淋淋,梁艳萍. 可控磁饱和电抗器在中压电网接地系统中运行状况的建模与仿真[J].电机与控制学报,2018,22(03):59-65.[doi:10.15938/j.emc.2018.03.008]
 MA Lin-lin,LIANG Yan-ping. Modeling and simulation of magnetically controlled saturatedreactor in medium-voltage power grid system[J].,2018,22(03):59-65.[doi:10.15938/j.emc.2018.03.008]
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 可控磁饱和电抗器在中压电网接地系统中运行状况的建模与仿真(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
22
期数:
2018年03
页码:
59-65
栏目:
出版日期:
2018-03-15

文章信息/Info

Title:
 Modeling and simulation of magnetically controlled saturatedreactor in medium-voltage power grid system
作者:
 马淋淋12 梁艳萍1
 ( 1. 哈尔滨理工大学 电气与电子工程学院,黑龙江 哈尔滨 150080; 2. 青岛理工大学 自动化工程学院,山东 青岛 266520)
Author(s):
  MA Lin-lin12 LIANG Yan-ping1
 ( 1. School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China;2. College of Automation Engineering,Qingdao University of Technology,Qingdao 266520,China)
关键词:
 可控磁饱和电抗器 消弧线圈 单相接地故障 中性点 谐振
Keywords:
controllable magnetic saturation reactor arc-extinguishing coil single phase ground fault neu-tral point resonance
分类号:
TM 474
DOI:
10.15938/j.emc.2018.03.008
文献标志码:
A
摘要:
 针对 10 ~ 35 k V 的中压电网经弧线圈接地运行方式中,消弧线圈的补偿度不能根据电容电流大小连续平滑调节的问题,提出了一种基于可控磁饱和电抗器的新型消弧线圈。并以一台额定电压为 10 k V 的可控磁饱和电抗器为研究对象,基于磁路分段的原理,充分考虑直交流绕组共同作用情况下磁路和电路的非线性问题,建立了消弧线圈的“磁路 - 电路耦合仿真模型”,并在系统模型中进行了仿真实验。对实验波形的计算结果表明,该消弧线圈可在电网发生单相接地故障时,能够根据单相接地电容电流的大小平滑调整补偿度,使接地电流得到有效抑制,保证接地电弧顺利自熄,提高系统的供电可靠性,并给出了谐波的抑制策略。
Abstract:
 A new arc suppression coil based on magnetically controlled saturated reactor was proposed tosolve compensation degree of arc suppression coil which cannot be continuously adjusted smoothly accord-ing to the capacitance current at 10 - 35 k V medium-voltage power network. Taking a magnetically con-trolled saturated reactor with rated voltage of 10 k V as the research object,based on principle of magneticcircuit segmentation,the coupling simulation model of magnetic circuit and circuit of arc suppression coilwas established considering the nonlinear problem of magnetic circuit and circuit which is under the com-bined action of AC winding and DC winding. The calculation results of the experimental waveform showthat the suppression coil can adjust compensation degree smoothly according to the size of the single-phasegrounding capacitor current when single phase earth fault occurs in power grid. Therefore the groundingcurrent is suppressed effectively,the grounding arc is extinguished smoothly,the power supply reliabilityof the system is improved,and the harmonic suppression strategy is given.

参考文献/References:

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备注/Memo

备注/Memo:
 收稿日期: 2017 - 10 - 19
基金项目: 国家自然科学基金( 51477079)
作者简介: 马淋淋( 1977—) ,男,博士研究生,讲师,研究方向为电力系统运行与控制、电力系统仿真;
梁艳萍( 1963—) ,女,教授,博士生导师,研究方向为电机电磁理论与电磁设计、交流电机故障分析与动态模拟、大型发电设备机电能量转换机理与电磁场分析与计算。
更新日期/Last Update: 2018-06-30