Arup Kumar Goswami

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This paper presents a method for the assessment of voltage sags caused by short-circuit faults in a large chemical industry. The supply arrangement for the industry is discussed. The connected equipment of the industry is fed from the 6.6-kV bus. The voltage sag analysis is performed for faults at different voltage levels in the power supply network. For(More)
The increasing use of power electronic devices during the last decades contribute to change the characteristics of voltage and current waveforms from ideal sinusoidal to non sinusoidal in power systems. Thus destroying the power quality completely that generates harmonics in the signal. Under these conditions advanced signal processing techniques are(More)
Many algorithms have been proposed for harmonic estimation to improve the power quality performance but till today it is still a challenge for accurate estimation. In this paper an adaptive filtering algorithm called Variable Constrained based Least Mean Square (VCLMS) is applied for the first time for estimating harmonic parameters. The algorithm has been(More)
In power system operation, congestion management has become more complicated with the increase of system complexity in deregulated environment. That is why, in present scenario of power system congestion management is a complex task of an independent system operator (ISO). In this paper, generator rescheduling is used as a congestion management technique. A(More)
Voltage sags are responsible for nuisance process trips in modern automated industrial facilities, thereby resulting huge financial losses to customers. Therefore, both utility as well as customers are having greater concerns for the improvement in power quality. Electrical utilities are aware that any level of customer voltage sag quality is achievable(More)
This paper presents a simple and efficient operating strategy for the operation of Pumped Storage Hydro (PSH) plant so as to maximize the profit of the Wind-Thermal-PSH hybrid plant with considering the grid frequency (f) and current energy level of the PSH plant. The wind speed is predicted for a day-ahead market and with this predicted value of wind speed(More)
Studies on a batch adsorption system using Teak Leaves Powder as adsorbent were carried out to remove copper from waste water. The aim of the present investigation is to study the potential of teak leaves for copper removal and optimize the parameters like contact time, pH and the temperature. Optimum contact time found to be 60 minute as after that(More)
Maximum power point tracking (MPPT) allows the photovoltaic module to operate at its maximum power point. It is done using a converter that regulates the power that is drawn from the converter. By varying the duty cycle of the switches, the energy transferred through the converter can be precisely controlled. This paper deals with simulation of estimator(More)
The design of hybrid boosting converter has gained significant advantage of voltage regulation from its boost structure by the gain enhancement from its voltage multiplier structure. Many works are reported for the design of hybrid boost converter which consists of single switch, single inductor by employing bipolar voltage multiplier. The converters are(More)