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All Journal International Journal of Applied Power Engineering (IJAPE)
Biplab Bhattacharyya
Indian Institute of Technology (Indian School of Mines), Dhanbad
Electrical & Electronics Engineering

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Optimal placement of PMU for complete observability of the interconnected power network considering zero-injection bus: A numerical approach Rohit Babu; Biplab Bhattacharyya
International Journal of Applied Power Engineering (IJAPE) Vol 9, No 2: August 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (758.57 KB) | DOI: 10.11591/ijape.v9.i2.pp135-146

Abstract

This paper presents an approach to place the phasor measurement unit (PMU)optimally, which minimizes the setup cost of PMU. This methodology attains complete state estimation of the interconnected power networks. An integer linear programming (ILP) method is explored for the optimal PMU placement problem. It is used to determine the optimal location and minimum number of PMUs necessary to make the interconnected power network completely observable. ILP may provide many solutions if acquainting buses to zero injection buses are unhandled. In the case of more than one solution, a bus observability redundancy index and total system observability redundancy index is proposed to find the most promising solutions set for redundancy measurement. The proposed algorithm is applied to benchmark the optimal PMU placement solutions for the IEEE 14-bus, IEEE 30-bus, New England 39-bus, IEEE 118-bus, and NRPG 246-bus test systems. The obtained results of the proposed approach are compared with the existing standard algorithm, and it is observed that the proposed approach achieves complete observability of the interconnected power network under base-load conditions.
Co-Authors Rohit Babu