Wide area backup protection algorithm for transmission lines based on fault component complex power

Seyed-Sattar Mirhosseini | Mahdi Akhbari

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=31847
Date :  2016/03/29
Publish in :    International Journal of Electrical Power and Energy Systems
DOI :  https://doi.org/10.1016/j.ijepes.2016.03.056
Link :  http://www.sciencedirect.com/science/article/pii/S0142061516305841
Keywords :lines, fault, component, complex

Abstract :

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In this paper a new wide area backup protection algorithm based on the fault component complex power is proposed to overcome the problem of maloperation of conventional backup protection in highly stressed conditions of power system operation. Firstly, suspected faulty lines are detected using measured values of fault component voltages known as faulted area identification (FAI) criteria. Then, the fault component voltages and currents provided by phasor measurement units (PMUs) are applied to calculate the injected complex power to both terminals of the suspected faulty lines. The ratio between sum and difference of injected complex power to the both terminals of the suspected faulty lines is used as faulted line identification (FLI) criteria. The simulation studies performed on the IEEE 10 generator 39-bus system verify effectiveness of the proposed algorithm under various conditions and fault types.