Wide-Area Line Outage Monitoring by Sparse Phasor Measurements
Wide-Area Line Outage Monitoring by Sparse Phasor Measurements
复制标题
通过稀疏相量测量进行广域线路停电监测
DOI：
10.1109/tpwrs.2022.3201067
复制
发表时间：
2023
影响因子：
6.6
通讯作者：
A. S. Dobakhshari
中科院分区：
文献类型：
--
作者：
S. Azizi;M. R. Jegarluei;A. Kettner;A. S. Dobakhshari
输电线路故障的及时识别是态势感知和防止扰动系统状态传播的关键。尽管一条线路的两端可能同时断开，但是线路的另一端的连续跳闸更为常见，而不管断电是计划好的还是由保护继电器控制的。本文提出了一种线路中断监测和识别线路两端断开前所经历的事件序列的方法。利用母线阻抗矩阵，导出了将线路中断与控制中心收集的相量变化联系起来的传递函数。基于残差加权平方和的概念，提出了一种识别断线的封闭解。所提出的方法不要求网络是完全可观测的，也不依赖于接收任何固定的测量集。与现有的解决方案相反，该方法不依赖于潮流推导，这一特点大大缩短了决策时间。该方法具有较高的速度和对部分通信网络故障和时间同步信号丢失的鲁棒性，适合于实时应用。在IEEE 39总线和118总线测试系统上进行的大量仿真表明，与现有方法相比，所提出的方法具有优越的性能。
Timely identification of transmission line outages is key to situational awareness and preventing the propagation of disturbed system conditions. Although a line may get disconnected from both ends simultaneously, sequential tripping of the opposite ends of the line is more common regardless of whether the outage is planned or administered by protective relays. This paper proposes a method for line outage monitoring and identifying the sequence of events that a line is undergoing before getting disconnected from both ends. Using the bus impedance matrix, a transfer function is derived to relate the line outage to the variations of phasors collected in the control center. A closed-form solution is put forward to identify the disconnected line based on the weighted sum of squared residuals concept. The proposed method does not require the network to be fully observable, nor does it count on the reception of any fixed set of measurements. As opposed to existing solutions, the method does not rely on power flow derivations, a feature that highly reduces its decision time. High speed, along with the robustness against partial communication network failures and losses of the time synchronization signal, makes the method suitable for real-time applications. Extensive simulations conducted on the IEEE 39-bus and 118-bus test systems demonstrate the superior performance of the proposed method compared to existing ones.
通过图形频谱分析进行可扩展的最快线路中断检测和定位
影响因子：
6.6
作者：
Dwivedi, Anmol;Tajer, Ali
通讯作者：
Tajer, Ali