| 图解法估算基于金属氧化物限压器保护的串联补偿系统三相短路电流 |
| |
| 引用本文： | 陈葛松,蔡百凌,李柏青. 图解法估算基于金属氧化物限压器保护的串联补偿系统三相短路电流[J]. 电网技术, 2003, 27(11): 30-33,71 |
| |
| 作者姓名： | 陈葛松 蔡百凌 李柏青 |
| |
| 作者单位： | 1. 中国电力科学研究院,北京100085
2. 深圳特区华侨城水电公司,广东省,深圳市,518053 |
| |
| 摘 要： | 提出了一种估算基于金属氧化物限压器(MOV)保护的串补系统三相短路电流的新方法一图解法。该方法借助于图形和网络等值技术来计算带非线性元件(如MOV)的电力系统短路电流，为系统规划工程师提供了计算短路电流和确定断路器等设备的电流额定值的简单方法。并采用电磁暂态分析程序(EMTP)进行了仿真实验，仿真结果也证实了上述图解法的有效性和较高的精度。文章还进一步讨论了计算短路故障时全网分支电流的方法。
|
| 关 键 词： | 金属氧化物限压器 图解法估算 电力系统 短路电流 串联补偿系统 三相短路电流 |
| 文章编号： | 1000-3673(2003)11-0030-04 |
ESTIMATION OF THREE PHASES SHORT CIRCUIT CURRENT IN POWER SYSTEM WITH MOV PROTECTION BASED SERIES COMPENSATION BY GRAPHIC METHOD |
| |
| CHEN Ge-song ,CAI Bai-ling,LI Bai-qing. ESTIMATION OF THREE PHASES SHORT CIRCUIT CURRENT IN POWER SYSTEM WITH MOV PROTECTION BASED SERIES COMPENSATION BY GRAPHIC METHOD[J]. Power System Technology, 2003, 27(11): 30-33,71 |
| |
| Authors: | CHEN Ge-song CAI Bai-ling LI Bai-qing |
| |
| Affiliation: | CHEN Ge-song 1,CAI Bai-ling2,LI Bai-qing1 |
| |
| Abstract: | An approach to estimate the three phase short circuit current in power system with MOV protection based series compensation by graphic method is presented, in which the short circuit current in the power system with non-linear element such as the MOV is calculated by means of the network equivalent technology and graphic method, therefore a simple method that can be used to calculate the short circuit currents and to determine the rated value of currents of the equipments such as circuit breakers, etc., is provided for the system planning engineers. The presented approach is verified by the simulation with EMTP and the simulation results show that this approach is effective and accurate. In addition, calculation of the branch currents of the whole network under three phase fault is discussed. |
| |
| Keywords: | Series compensation MOV Short circuit current Graphic method Power system |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
