Power System State Estimation with Optimal PMU Placement under Contingencies

Authors

  • Rupesh Kumar Sah Department of Electrical Engineering IOE Pulchowk Campus, Lalitpur, Nepal
  • Yuba Raj Adhikari Department of Electrical Engineering, IOE Pulchowk Campus, Lalitpur, Nepal
  • Prabhat Kumar Pankaj Load Dispatch Centre, Nepal Electricity Authority, Kathmandu, Nepal

DOI:

https://doi.org/10.3126/injet.v1i2.66716

Keywords:

Phasor measurement Unit (PMU), Optimal Placement, DC load flow, State Estimation, Contingencies, Weighted least square

Abstract

It discusses the significance of Phasor Measurement Units (PMUs) in monitoring and protecting power systems. DC load flow method is used to analyze power flow in electrical networks, assuming certain conditions like Constant voltage magnitudes and steady-state analysis. It introduces a novel algorithm for optimal PMU placement based on maximum connectivity considering both normal and contingency conditions. Additionally, a new state estimation algorithm is presented for estimating the system states (Voltage magnitude and angle) by minimizing the weighted least-square problem with respect to x. The effectiveness of the algorithms is demonstrated through testing on various bus test systems, showcasing their suitability for practical applications in power system monitoring.

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Published

2024-06-24

How to Cite

Sah, R. K., Adhikari, Y. R., & Pankaj, P. K. (2024). Power System State Estimation with Optimal PMU Placement under Contingencies. International Journal on Engineering Technology, 1(2), 95–102. https://doi.org/10.3126/injet.v1i2.66716

Issue

Vol. 1 No. 2 (2024)

Section

Articles