Defense plan against loss of synchronism in interconnected power systems
Defense plan against loss of synchronism in interconnected power systems
复制标题
互联电力系统失步防御方案
DOI：
10.1109/ptc.2009.5281795
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
C. Rehtanz
中科院分区：
文献类型：
--
作者：
U. Hager;C. Rehtanz
本文提出了一种新的互联电力系统输电走廊失步保护系统的方法。这种方法的新奇在于它依赖于系统的完全可观测性。防御计划分析在不同网络位置测量的电压相量，以确定输电走廊的安全状态。如果检测到干扰状态，保护系统将通过走廊连接的网络部分分开，以避免同步机由于电压相量的偏离而失步。示例性的模拟示出的防御计划与传统的保护系统的距离保护继电器的基础上进行比较。UCTE系统与IPS/UPS系统的假定互连用作仿真场景。
This paper presents a new approach for an out-of-step protection system for transmission corridors in interconnected power systems. The novelty of this approach is its interdependence on having a complete observability of the system. A defense plan analyzes voltage phasors measured at different network locations to determine the security state of the transmission corridor. If a disturbed state is detected, the protection system separates the network parts connected by the corridor to avoid synchronous machines falling out of step due to the divagation of the voltage phasors. Exemplary simulations are shown to compare the defense plan with conventional protection systems based on distance protection relays. A presumed interconnection of the UCTE system with the IPS/UPS system is used as simulation scenario.