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This paper deals with the assessment of voltage sag for power quality analysis. For this purpose different voltage signals having different percentages of sag have been simulated and then by Discrete Wavelet Transform (DWT) based Skewness analysis is done to detect the voltage sag condition. After that interpolation or extrapolation have been done for unknown Skewness values for assessment of voltage...
This paper focuses on the effective utilization of Flexible AC Transmission System (FACTS) and High Voltage Direct Current (HVDC) interconnection link for the improvement of voltage profile, stability and loss allocation in heavily loaded as well as contingent conditions of the network. The weakest bus interconnection has been replaced by FACTS and HVDC link and a study has been carried out to prove...
This paper presents a computer aided novel technique for electric power quality assessment. This has been done by assessment of unbalance and presence of harmonics in a power system. This is achieved by developing some feature patterns formed by power system data, wherefrom rule set has been generated to analyze unbalance and presence of harmonics in a power system. The study of the unbalance is accomplished...
Power factor monitoring is an important challenge in deregulated environment to maintain quality in delivered power as well as tariff assessment. In this paper, a unique power factor measurement method has been proposed that can measure the instantaneous power factor of a non-sinusoidal single-phase system accurately at every sample instant. The wavelet transform (WT) has been utilized for multiresolution...
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