Concept of Smart Automatic Reclosing for Transient Stability Improvement of Large Power Systems

J. Slavík, Ž. Eleschová
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Abstract

This paper presents a transient stability analysis of large power systems equipped with smart automatic circuit reclosers (ACRs). ACRs may help to prevent stability loss even in case of unsuccessful reclosure if they are set correctly. First, we need to analyze transient stability loss zones for correct use of smart recloser in large power systems with multiple synchronous generators. Those areas are represented by a matrix of power lines where the same synchronous generator loses its transient stability in case of short circuit. Secondly, we need to link smart recloser with its own zone. Analysis of simulation results in large power systems and main principles of smart reclosers being used are presented below.
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大型电力系统暂态稳定改进的智能自动重合闸概念
提出了一种大型电力系统的暂态稳定性分析方法。如果acr设置正确,即使在重合闸不成功的情况下,也可以帮助防止稳定性损失。首先,我们需要分析暂态稳定损失区,以便在多台同步发电机的大型电力系统中正确使用智能重合闸。这些区域由电力线矩阵表示,其中同一同步发电机在短路情况下失去暂态稳定性。其次,我们需要将智能重合闸与自己的区域联系起来。本文对大型电力系统的仿真结果进行了分析,并介绍了智能逆变器的主要原理。
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