A Substation-Oriented Approach to Optimal Phasor Measurement Units Placement

- Journal title : Journal of Electrical Engineering and Technology
- Volume 10, Issue 1, 2015, pp.18-29
- Publisher : The Korean Institute of Electrical Engineers
- DOI : 10.5370/JEET.2015.10.1.018

Title & Authors

A Substation-Oriented Approach to Optimal Phasor Measurement Units Placement

Bao, Wei; Guo, Rui-Peng; Han, Zhen-Xiang; Chen, Li-Yue; Lu, Min;

Bao, Wei; Guo, Rui-Peng; Han, Zhen-Xiang; Chen, Li-Yue; Lu, Min;

Abstract

State Estimation (SE) is the basis of a variety of advanced applications used in most modern power systems. An SE problem formed with enough phasor measurement units (PMUs) data is simply a linear weighted least squares problem requiring no iterations. Thus, designing a minimum-cost placement of PMUs that guarantees observability of a power system becomes a worthy challenge. This paper proposes an equivalent integer linear programming method for substation-oriented optimal PMU placement (SOOPP). The proposed method uses an exhaustive search to determine a globally optimal solution representing the best PMU placement for that particular power system. To obtain a more comprehensive model, contingencies and the limitation of the number of PMU measurement channels are considered and embodied in the model as changes to the original constraints and as additional constraints. The proposed method is examined for applicability using the IEEE 14-bus, 118-bus and 300-bus test systems. The comparison between SOOPP results and results obtained by other methods reveals the excellence of SOOPP. Furthermore, practical large-scale power systems are also successfully analyzed using SOOPP.

Keywords

Phasor measurement units;OPP;Contingency;Measurement channels limitation;Substation oriented;Linear programming method;

Language

English

Cited by

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