A Novel Approach on Voltage Unbalance Improvement using SFCL on Electric Railway System
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چکیده
This paper presents a novel approach to determinethe power system stability using resistive superconducting faultcurrent limiter (SFCL) of an electric power grid (EPG). Inaddition, the electric railwaysystem has rapidly changing loadcharacteristics in time. An unbalance is generated owing to therapidly changing large single-phase loads. Subsequently, the unbalanced load causes an unbalanced transmission line. Avoltage unbalance in the source influences the power equipmentby causing a reduction in the power generation capacity of thegenerator and a decrease in the output of the other facilities in thetransmission line. In addition, many flexible ac transmissionsystems are applied to transmission lines to compensate for andcontrol electric power. A voltage unbalance causes a control errorin these systems. In addition, we analyzed the effects of theproposed method using MATLAB simulation.
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