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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Indonesian Journal of Electrical Engineering and Computer Science
Pradip Kumar Sadhu
Indian School of Mines, Dhanbad
Control & Systems Engineering Electrical & Electronics Engineering

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A Fault Current Limiter Circuit to Improve Transient Stability in Power System Saumen Dhara; Alok Kumar Shrivastav; Pradip Kumar Sadhu; Ankur Ganguly
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 7, No 3: September 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (851.188 KB) | DOI: 10.11591/ijpeds.v7.i3.pp769-780

Abstract

Short circuit current limitation in distribution system utilities can be an operational approach to improve power quality, since the estimated voltage sag amplitude during faults may be intensely reduced. The application of superconducting fault current limiter (SFCL) is projected here to limit the fault current that occurs in power system. SFCL utilizes superconductors to instantaneously decrease the unanticipated electrical surges that happen on utility distribution and power transmission networks. SFCL considerably decrease the economic burden on the utilities by reducing the wear on circuit breakers and protecting other expensive equipment. The designed SFCL model is used for determining an impedance level of SFCL according to the fault current limitation necessities of different types of the smart grid system. The representation of this paper about to see the optimum resistive value of SFCL for enhancing the transient stability of a power system. The assessment of optimal resistive value of the SFCL connected in series in a transmission line with a conductor throughout a short circuit fault is consistently determined by applying the equal-area criterion supported by power-angle curves. A Simulink based primary model is developed and additionally the simulation results for the projected model are achieved by using MATLAB.
A Novel Transient Current Limiter Based on Three-Phase Thyristor Bridge for Y-yg Transformers Alok Kumar Shrivastav; Pradip Kumar Sadhu; Ankur Ganguly; Nitai Pal
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 6, No 4: December 2015
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v6.i4.pp747-758

Abstract

The transformer in flux current may be a transient current that happens in electrical devices has been charged. This current depends on completely different parameters probably the voltage magnitude, the switching on angle the permanent flux, the core physical phemeon characteristics, the primary circuit resistance, etc. To beat the issues arising owing to transients, these are required to be suppressed.In this paper, an easy and economical techniquie is conferred to limit the transient current of the Y-yg transformers. One amongst the most benefit of this technique is it doesn’t would like any negative feedback circuit or activity unit. The tactic relies on a three-phase thyristors bridge single LC reactor with the individual phases of electrical device. Since the amount of thyristors is reduced, the voltage ripple, electrical losses and therefore the malfunction likelihood due to device failure is reduced significantly. The projected technique has been simulated by MATLAB simulation. It’s shown that the projected style is a lot of economical for the transient current limitation of Y-yg transformers.
Design Approach To High Voltage High Power Steam-Turbine Driven Alternator Pritish Kumar Ghosh; Alok Kumar Shrivastav; Pradip Kumar Sadhu; Amarnath Sanyal
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 7, No 2: June 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v7.i2.pp322-327

Abstract

The paper deals with the design methodology of high voltage high power alternators driven by steam turbines. These alternators run at a high speed of 3000 rpm in most part of the world (at 3600 rpm in USA) and are of cylindrical pole construction. The design procedure suggested in the text-books of design does not well-suit for large alternators of modern time. Modern high power alternators are designed with a low value of SCR to reduce the size, inertia and cost of the rotor. The diameter is limited by the consideration of centrifugal stresses. The no.of stator slots are determined by the no. of turns. The ventilating circuit has to be designed for hydrogen as coolant and in addition with water flowing through hollow conductors, if required. The data for the design variables and the design constraints are quite different from those for small power ratings. The materials to be chosen must be of very high quality. The computer programme has been chalked out and the case-study has been conducted keeping all these points in view.
An Approach to Voltage Quality Enhancement by Introduction of CWVM for Distribution System Alok Kumar Shrivastav; Pradip Kumar Sadhu; Ankur Ganguly; Saumen Dhara
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 7, No 4: December 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (622.931 KB) | DOI: 10.11591/ijpeds.v7.i4.pp1276-1282

Abstract

This paper presented with problems related with voltage flicker in power system networks. Several international standard issued to control the voltage flicker are briefly described and some important methods to analyse electrical circuits with sinusoidal and non-sinusoidal waveforms are introduced and evaluated. One of these methods – Cockcroft Walton Voltage Multiplier (CWVM) has been used to increase the voltage of a filter, which is also described in this paper as a practical application. The filter can compensate for harmonic currents, power factor, and unbalance voltage. The simulation results using Multisim are presented, showing that good dynamic and steady-state response can be achieved with this approach.
Role of Solar Power in Sustainable Development of India Moumita Sadhu; Suprava Chakraborty; Niladri Das; Pradip Kumar Sadhu
Indonesian Journal of Electrical Engineering and Computer Science Vol 14, No 1: April 2015
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bulk group of rural households, dependency on insufficient and poor quality energy sources are the features of Indian energy consumption pattern. Sustainability is the move towards the growth and development of India. Solar Energy is one of the renowned sectors to support the sustainability of India. Solar energy has giant potential in India due to its position in tropical belt. This paper deals with the new innovative applications of solar energy for sustainable development of India. Solar application in transportation, architecture, car parking, restaurants, lighting, mobile charging etc are described for sustainable development. The paper includes the existing applications of solar energy, the current status of solar energy in India, challenges in the progress of solar energy and concludes with some solutions to promote solar energy. DOI: http://dx.doi.org/10.11591/telkomnika.v14i1.7668 
Co-Authors Alok Kumar Shrivastav Alok Kumar Shrivastav Alok Kumar Shrivastav Alok Kumar Shrivastav Amarnath Sanyal Ankur Ganguly Ankur Ganguly Ankur Ganguly Moumita Sadhu Niladri Das Nitai Pal Pritish Kumar Ghosh Saumen Dhara Saumen Dhara Suprava Chakraborty