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A new method for optimal placement of phasor measurement units to maintain full network observability under various contingencies

机译:优化相量测量单元位置以在各种意外情况下保持完整的网络可观察性的新方法

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摘要

The application of phasor measurement units (PMUs) in power systems is increasing because of their advantages such as the capability for online state estimation and improvements in the speed of control, and protection systems. In this paper, we propose a new method using binary integer linear programming for the optimal placement of PMUs to guarantee full observability of a power system as well as maximizing the measurement redundancy. Moreover, the problem of the optimal placement of these units in the case of a single PMU loss or single line outage is investigated. A practical limitation is also considered on the maximum number of PMU channels, in the proposed formulation. In all of the investigations, the effect of zero-injection buses in the power system was considered. The efficiency of the proposed method was demonstrated in different conditions. The method was applied to several IEEE standard test systems, i.e., the 14-, 30-, 39-, 57-, and 118-bus systems, and in two very large-scale systems, i.e.. 2383- and 2746-bus systems. The simulation results verified the acceptable performance of the proposed method.
机译:相量测量单元(PMU)在电力系统中的应用正在增加,这是因为相量测量单元具有在线状态估计功能,控制速度和保护系统的改进等优点。在本文中,我们提出了一种使用二进制整数线性规划的新方法来优化PMU的位置,以确保电力系统的完全可观察性以及最大程度地增加测量冗余度。此外,研究了在单个PMU丢失或单个线路中断的情况下这些单元的最佳放置问题。在提议的公式中,还考虑了最大数量的PMU通道的实际限制。在所有调查中,都考虑了零注入总线在电力系统中的影响。在不同条件下证明了该方法的有效性。该方法已应用于几种IEEE标准测试系统,即14、30、39、57和118总线系统,以及两个非常大规模的系统,即2383和2746总线系统。 。仿真结果验证了该方法的可接受性能。

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