欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
超高压输电线路的继电保护装置担负着非常重要的任务，这些保护不可避免地会受到各种高频信号的干扰，其中雷电干扰就是最主要的干扰因素。因此，雷电干扰识别技术的研究对超高速保护能快速准确动作、尽快走向实用化具有重要意义。本论文采用对电流暂态分量进行频谱分析的方法来研究不同情况下能量的分布，找出差异，并结合对暂态电流的波形特征的分析，来区分输电线路上感应雷、非故障性直击雷与故障性直击雷及普通短路故障。通过此方法，最终达到识别雷电干扰的目的，以保证保护不会误动作。
英文摘要：
EHV transmission lines of relay protection device undertakes the important task, these protections inevitably are affected by various high frequency signal interference, which lightning is the main interference factor. Therefore, lightning interference recognition technology research for super-fast protection can adapt fast and accurate movements, the practical significance as soon as possible. This paper adopts the current transient components for frequency spectrum analysis to study the distribution of different situations energy distribution, finds out the differences, and get to analysis based on the waveform feature transient current, to differentiate on the transmission induction lightning,direct lightning and common fault. Through this method,reaching the purpose of identifying lightning interference to ensure protection no fault actions.
同期刊论文项目
同项目期刊论文
期刊信息
位置：