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电力系统的短路分析与故障测距

大科技(2016)

Cited 0|Views3
Abstract
电力系统包括通过电的或机械的方式连接在网络中的所有设备.电力系统中的这些互连元件可以改变系统的运行状态.如果系统处于暂态过程之中,运行参量的变化可能会对系统造成危害,导致发电机输入功率和输出功率不平衡,因此必须对电力系统的各种暂态过程进行分析.我们可以针对技术问题采用一些合理的假设,就电路中的短路问题进行研究.电力系统中随时会产生复杂的暂态现象,且测得的信号中包含大量的暂态分量.故障测距是通过对故障进行快速的检测、以达到消除故障的目的.目前,电力系统短路故障危害到国家的能源和经济.随着现代社会生产力水平的不断提高,安全、可靠、稳定的电力供应已成为电力网络的延伸的主要方向.本文就电力系统短路分析及保护和故障测距技术进行了阐述.
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