Dynamic Voltage Instability Identification of Power System using Thévenin Equivalent Method

Voltage instability is one of the key issues in continuously evolving power systems. In this paper, the Thevenin's equivalent method is combined with a static voltage stability index (VSI) to identify the critical load demands of the power system. In Thevenin equivalent's method, the large...

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Bibliographic Details
Published in2020 IEEE Students Conference on Engineering & Systems (SCES) pp. 1 - 6
Main Authors Tripathi, Shivam, Rawat, Mahiraj Singh, Rayudu, V G Durgarao
Format Conference Proceeding
LanguageEnglish
Published IEEE 10.07.2020
Subjects
Benchmark testing
Heuristic algorithms
Load flow
Loading Scaling
Power system dynamics
Power system stability
Software algorithms
Stability criteria
Thevenin Equivalent (TE)
Voltage Collapse
Voltage Stability Indicator (VSI)
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Summary:Voltage instability is one of the key issues in continuously evolving power systems. In this paper, the Thevenin's equivalent method is combined with a static voltage stability index (VSI) to identify the critical load demands of the power system. In Thevenin equivalent's method, the large power system can be represented as an equivalent voltage source Vth and equivalent impedance Zth across an identified load bus. To verify the proposed approach, the algorithm has been implemented on IEEE 30-Bus System, IEEE 39-New England Bus System and IEEE 118-Bus System. Simulation results are obtained using MATPOWER, a MATLAB based open-source software. The obtained results are compared with the benchmark Continuous Power Flow (CPF) method.
DOI:10.1109/SCES50439.2020.9236698