Graph topology-constrained BILP for optimal PMU placements

•The effective topology of the power network is fully defined.•A new contribution matrix is used to replace the traditional adjacency matrix, integrating the network structure and bus roles.•A linear constraint model corresponding to the topology is given, and the model composition is simpler.•The d...

Celý popis

Uložené v:

Podrobná bibliografia
Vydané v:	Electric power systems research Ročník 241; s. 111291
Hlavní autori:	Zhang, Pengcheng, Sun, Yuqin, Wang, Tianyi, Wang, Jingcong, Zhang, Wei
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Elsevier B.V 01.04.2025
Predmet:	Binary integer linear programming (BILP) Graph theory Optimal placement Phasor measurement unit (PMU) PMU loss Power system observability Zero injection buses (ZIBs) PMU loss Zero injection buses (ZIBs) Optimal placement Power system observability Phasor measurement unit (PMU) Graph theory Binary integer linear programming (BILP)
ISSN:	0378-7796
On-line prístup:	Získať plný text
Tagy:	Pridať tag Žiadne tagy, Buďte prvý, kto otaguje tento záznam!

Popis
Shrnutí:	•The effective topology of the power network is fully defined.•A new contribution matrix is used to replace the traditional adjacency matrix, integrating the network structure and bus roles.•A linear constraint model corresponding to the topology is given, and the model composition is simpler.•The deconvolution process of the ZIBs is optimized by the improved topology transformation algorithm, and the avoidance of redundant lines is avoided. and improves the efficiency of computation. In the monitoring and control of power systems, the deployment of Phasor Measurement Units (PMUs) is of paramount importance, yet their high installation costs have limited their widespread application. To address this issue, this paper proposes an innovative method based on graph topology constraints, known as the Graph Topology-constrained Binary Integer Linear Programming (GT-BILP) approach, aimed at achieving the optimal configuration of PMUs. This method not only takes into account cost-effectiveness but also ensures the complete observability of the system. By quantifying the contribution of each node and bus to the system's observability within the network, a novel contribution matrix is constructed. This matrix integrates the dynamic characteristics of network topology and information flow, providing precise decision support for the deployment of PMUs. By combining the matrix with the network's planning model, the GT-BILP model is obtained, which can effectively solve the PMU layout requirements for large power grids. For the special case of zero-injection buses (ZIBs), the Topology Transformation algorithm has been improved, significantly enhancing the solution efficiency and quality. Through simulation experiments on multiple IEEE standard test systems, the effectiveness and superiority of the proposed GT-BILP model have been verified. This research is of significant importance for improving the monitoring and control capabilities of power systems and provides a new perspective for technological advancement in this field.
ISSN:	0378-7796
DOI:	10.1016/j.epsr.2024.111291