Ashok Kumar Pradhan

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Recently, the authors proposed a clustering approach based on the Fuzzy C-medoid algorithm (FCMdd), for segregating large power systems into coherent electric areas centered around a representative so-called medoid-bus. This bus was shown to be a natural location for PMU in the context of wide-area measurement system (WAMS) configuration for of dynamic(More)
In Wavelength Division Multiplexing (WDM) optical networks, the failure of network resources (e.g., fiber link or node) can disrupt the transmission of information to several destination nodes on a light-tree based multicast sessions. Thus, it is essential to protect multicast sessions by reserving resources along back-up trees. So that if primary tree(More)
The apparent impedance seen by a distance relay may fall within its operating zone during power swing. This may cause the relay to trip unnecessarily. To avoid unintended trip operation during such conditions, a power swing blocking function is utilized in distance relays. However, if a fault occurs during power swing, the relay should detect the fault and(More)
Protection of double circuit line is more complex than the single circuit. Problems associated with directional relaying for double circuit line during close-in fault, cross country fault, load change and with high resistance fault are addressed in this paper. Conventional directional relaying algorithm uses fault voltage and current phasors to derive the(More)
Biodiesel are becoming popular as alternative eco-friendly fuel now days. The petroleum product requirement is going on increasing day by day in India with limited resources in the oil pool. Crisis of petroleum fuel and import of fossil fuel is giving a high impact on the economy and development. Besides the economy and development, fossil fuel also leads(More)
Identification of the faulted line in a system can improve the performance of backup protection schemes. This paper presents a Wide Area Measurement System (WAMS) based algorithm, where voltage and current signals from synchrophasors placed at strategic locations are used for the identification of faulted line. Conventional backup protection schemes require(More)
Mechanically switched capacitor with damping network (MSCDN) is a low cost economical device used in power systems to serve the dual purpose of supplying reactive power at the fundamental frequency as well as to eliminate the unwanted harmonics when tuned at the desired harmonic frequency. However, during switching in a high voltage A.C grid, various(More)