Transmission line protection system for increasing power system requirements
Transmission line protection system for increasing power system requirements
复制标题
满足日益增长的电力系统要求的输电线路保护系统
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
B. Kasztenny
中科院分区：
文献类型：
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作者：
A. Guzman;J. Mooney;G. Benmouyal;N. Fischer;B. Kasztenny
介绍了一种用于快速可靠输电线路保护的保护继电器，它将只响应暂态条件的元件与响应暂态和稳态条件的元件结合在一起。在本文中，我们还提出了在串联补偿线路应用中防止1区距离元件越界的算法，并展示了如何在开极条件下防止距离元件极化的破坏。我们还介绍了一种用于单极跳闸(SPT)应用的高效频率估计逻辑。当一个极点打开时，该逻辑可防止在系统频率漂移期间距离元件误操作。文中还讨论了一种防止故障时单相重合闸的算法和逻辑，以避免额外的电力系统损坏和最小的系统干扰。应用这些算法和逻辑，可以得到一种适用于日益增长的电力系统要求的保护系统，例如重载、SPT、串联线路补偿和并联线路补偿。
This paper describes a protective relay for fast and reliable transmission line protection that combines elements that respond only to transient conditions with elements that respond to transient and steady state conditions. In this paper, we also present an algorithm that prevents Zone 1 distance element overreach in series-compensated line applications and show how to prevent corruption of the distance element polarization during pole-open conditions. We also introduce an efficient frequency estimation logic for single-pole-tripping (SPT) applications with line-side potentials. This logic prevents distance element misoperation during a system frequency excursion when one pole is open. We also discuss an algorithm and logic to prevent single-pole reclosing while the fault is present, avoiding additional power system damage and minimizing system disturbance. Applying these algorithms and logics results in a protective system suitable for increasing power system requirements such as heavy loading, SPT, series line compensation, and shunt line compensation.