State Estimation of Power System Using PMU Devices
DOI:
https://doi.org/10.4108/ew.3273Keywords:
State estimation, phasor measurement unit (PMU), weighted least square (WLS) estimation, SCADAAbstract
This paper explains the role of Phasor Measurement Units (PMUs) in estimating the state of energy systems and suggests a linear state estimator involving PMU current and voltage measurements for tracking the system state. The state estimator carries out the estimation process in two phases. The first phase uses the conventional SCADA measurements and applies the classical Weighted Least Square (WLS) approach for estimating the current system state, and the second phase corrects and tracks the system state using the PMU measurements in the subsequent intervals. It provides simulation results of the proposed method on IEEE 30 and 57 bus energy systems for exhibiting its superiority.
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Copyright (c) 2025 S Shanmugapriya, Puspesh Pallav, Mukul Patel, Virendra Mulgir
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