| 引用本文: | 肖遥,张晋寅,黎建平,等.H型接线高压滤波电容器组不平衡电流保护判据及定值[J].电力系统保护与控制,2015,43(18):120-128. |
| XIAO Yao,ZHANG Jinyin,LI Jianping,et al.Criterion and settings of unbalanced current protection for filter capacitor bank of H configuration[J].Power System Protection and Control,2015,43(18):120-128 |
|
| 摘要: |
| 着重介绍H接线方式下高压滤波电容器组不平衡保护的定值的整定原则。提出滤波器组的失谐度，完好电容器单元的过电压水平及其允许值是滤波电容器组不平衡保护整定的基本原则。对H型电容器组的元件失效或者短路故障分别结合失谐度和过电压进行数理分析。结合内熔丝型电容器单元和无熔丝型电容器单元的不同故障性质，给出了电容器组不平衡保护的整定值计算分析方法和最终的整定计算公式。形成H型电容器组不平衡电流保护计算的理论基础。 |
| 关键词: 滤波器 电容器 不平衡保护 保护整定计算 |
| DOI：10.7667/j.issn.1674-3415.2015.18.020 |
| 分类号: |
| 基金项目: |
|
| Criterion and settings of unbalanced current protection for filter capacitor bank of H configuration |
|
XIAO Yao, ZHANG Jinyin, LI Jianping, CHU Jinwei, YANG Xiaofeng
|
|
Maintenance and Test Center of Extra High Voltage Power Transmission Co.,
China Southern Power Grid, Guangzhou 510663, China
|
| Abstract: |
| The paper mainly introduces the principles to calculate the settings of unbalanced current protection for H-configured capacitor banks. The basic principles of the permitted detuning of the filter banks and the withstand voltages on remaining perfect capacitor units after some units’ failures are proposed. Mathematical analysis of elements failures or short circuit of H capacitor banks is made together with detuning and overvoltage respectively. Combining with different fault property of both the internal fused and fuseless capacitors, the setting calculation analysis method of capacitor bank unbalanced protection and final formulations of setting calculation are given. The paper constitutes the basis for the unbalanced protection of H-configured capacitor banks. |
| Key words: filters capacitor banks unbalanced protection protective settings and calculation |
