Abstract In a wide area measurement system, line tripping as well as the following transient and dynamic post-contingency conditions affect the full observability of power systems and possibly the accuracy of the wide area monitoring system. In this paper, a general methodology is presented to solve the phasor measurement unit (PMU) placement problem considering both the system and the topology aspects of disturbances. To do that, the connectivity matrix-based PMU placement problem is firstly formulated in its basic binary integer form to meet the full observability of power systems. Next, the post-disturbance variations in power systems, as the system aspect, are integrated with the conventional placement problem to ensure the more accurate pre- and post-disturbance monitoring of power systems. In addition, the algorithm is developed to achieve the highest possible reliability for single transmission line outages, i.e. N – 1 contingencies, as the topology aspect. Other topology-related issues, including zero injections, PMU channel limitations, and pre-existing measurements are included in the new formulation as well. Since the effects of the two aspects of disturbances on the placement solution are conflicting, and as the magnitude of the system aspect is much stronger than that of topology aspects, compensations are added to balance the conflicting effects by mitigating the strong effect of the system aspect on the overall formulation. Therefore, the proposed methodology will lead to a placement scheme, by which providing the full observability of the system under a high number of single line outages as well as obtaining the more accurate post-disturbance monitoring of power systems are assured. The performance and effectiveness of the proposed methodology are demonstrated in two medium and large test systems.

中文翻译：

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考虑到突发事件的拓扑和系统方面的通用 PMU 放置方法

摘要 在广域测量系统中，线路跳闸以及随后的瞬态和动态事后条件会影响电力系统的全面可观测性，并可能影响广域监测系统的准确性。在本文中，提出了一种通用方法来解决相量测量单元 (PMU) 放置问题，同时考虑系统和拓扑方面的干扰。为此，基于连接矩阵的 PMU 放置问题首先以其基本的二进制整数形式制定，以满足电力系统的完全可观察性。其次，将电力系统扰动后的变化作为系统方面，与传统的放置问题相结合，以确保对电力系统进行更准确的扰动前后监测。此外，开发该算法是为了在拓扑方面实现单条输电线路中断的最高可能可靠性，即 N-1 意外事件。其他与拓扑相关的问题，包括零注入、PMU 通道限制和预先存在的测量也包含在新公式中。由于两个方面的扰动对布局方案的影响是相互冲突的，而且系统方面的量级比拓扑方面的强得多，因此通过减轻系统方面的强影响，添加补偿来平衡冲​​突的影响在整体配方上。因此，提议的方法将导致安置方案，从而确保在大量单线断电情况下提供系统的完全可观测性，并确保对电力系统进行更准确的干扰后监测。所提出的方法的性能和有效性在两个中型和大型测试系统中得到了证明。