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| 电磁式电压互感器的铁磁谐振仿真研究 | |
| 引用本文： | 梁志瑞,董维,刘文轩,黄佳珍,吴群雄.电磁式电压互感器的铁磁谐振仿真研究[J].高压电器,2012,48(11). |
| 作者姓名： | 梁志瑞 董维 刘文轩 黄佳珍 吴群雄 |
| 作者单位： | 1. 华北电力大学电气与电子工程学院,保定,071003 2. 佛山供电局,佛山,528000 3. 丽水市莲都供电局,丽水,323000 |
| 摘 要： | 在中性点不接地配电系统中,由于电磁式电压互感器(PT)励磁电感的非线性特性,会在一定条件下产生铁磁谐振,影响系统的安全运行。笔者以ATP-EMTP仿真软件对铁磁谐振及多种消谐措施进行了仿真分析和综合比较,结合仿真分析及实际工程应用情况,认为在众多消谐措施中PT一次侧中性点接消谐器和4PT接线方式是比较好的消谐方法。 |
| 关 键 词： | 电磁式电压互感器 铁磁谐振 消谐措施 ATP-EMTP |
Simulation Analysis on Ferroresonance of Potential Transformer |
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| LIANG Zhi-rui , DONG Wei , LIU Wen-xuan , HUANG Jia-zhen , WU Qun-xiong.Simulation Analysis on Ferroresonance of Potential Transformer[J].High Voltage Apparatus,2012,48(11). | |
| Authors: | LIANG Zhi-rui DONG Wei LIU Wen-xuan HUANG Jia-zhen WU Qun-xiong |
| Abstract: | In the neutral ungrounded power distribution system,ferroresonance is easy to occur in certain conditions due to the nonlinear characteristic of excitation inductance of three-phase potential transformer(PT),and this phenomenon may decrease the security of power system.In this paper,simulation analysis and comparison are performed via ATP-EMTP software for the ferroresonance and various ferroresonance elimination methods.Combining the simulation analysis and practical application,it is concluded that of many ferroresonance elimination methods,connection of ferroresonance eliminator to the neutral point of PT's primary side and 4PT connection are the best ones. |
| Keywords: | potential transformer(PT) ferroresonance ferroresonance elimination method ATP-EMTP |
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