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Vijayakumar Krishnasamy

Vijayakumar Krishnasamy
Indian Institute of Information Technology Design and Manusfacturing Kancheepuram · Electronics and Communication Engineering

Doctor of Philosophy
Looking for potential and enthusiastic scholars for Ph.D. position at IIITDM Kancheepuram.

About

43
Publications
9,786
Reads
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355
Citations
Additional affiliations
December 2013 - April 2018
Malaviya National Institute of Technology Jaipur
Position
  • Professor (Assistant)
December 2012 - November 2013
Nanyang Technological University
Position
  • PostDoc Position
July 2007 - October 2012
National Institute of Technology Tiruchirappalli
Position
  • Research Associate
Education
July 2009 - October 2012
National Institute of Technology Tiruchirappalli
Field of study
  • Power Conversion Techniques for Renewable Energy System
July 2007 - May 2009
August 2002 - May 2006
Coimbatore Institute of Technology
Field of study
  • Electrical and Electronics Engineering

Publications

Publications (43)
Article
Full-text available
A simple system has been formulated for the operation of wind-driven stand-alone doubly fed induction generators (DFIGs) supplying isolated loads at stator terminals. The stator voltage magnitude and frequency are maintained constant by closed-loop control. The excitation of the rotor is established using a single inverter which is an sinusoidal pu...
Article
This paper proposes a hybrid method for an accurate parameter estimation of the solar photovoltaic (PV) module. The proposed method combines the features of analytical as well as the optimization technique to ensure the speed and accuracy in computation. Two‐diode model consist of seven unknown parameters namely the photocurrent (IPV$$ {I}_{\mathrm...
Article
This paper introduces a variant of a quadratic boost converter (QBC) with low rear end capacitor stress by preserving its inherent abilities of less ripple continuous input current, utilization of single power switch and quadratic voltage gain. The proposed converter utilizes two LC (inductor and capacitor) filters with three diodes and one active...
Article
This paper is a step towards ‘green telecom tower’ by eliminating the diesel generator from telecom power supply. The fuel cell based power supply has been proposed for telecom towers in remote and rural areas. The challenge of meeting the prerequisite of telecom power supply which are reliability and regulated DC distribution bus voltage in the en...
Article
The optimal configuration of energy sources in a nanogrid is important due to intermittency of renewable energy sources and variability in load. An oversized configuration gives the maximum power supply availability to load. However, this would result in higher cost of electricity and excess power generation. Since, dc nanogrids are seldom connecte...
Book
This book addresses and disseminates state-of-the-art research and development in the applications of intelligent techniques for smart grids and renewable energy systems. This helps the readers to grasp the extensive point of view and the essence of the recent advances in this field. The book solicits contributions from active researchers which inc...
Article
Full-text available
In this study, the current mode control strategy for a Cuk converter assisted self-excited induction generator-based wind energy conversion system (WECS) for DC nanogrid is proposed. The sliding mode controller (SMC) is a non-linear controller and, is preferred because of good static and dynamic response for input -output disturbance rejections. Ho...
Article
This article proposes a unified controller for Cuk converter assisted variable speed wind turbine driven self-excited induction generator (SEIG) in dc nanogrid configuration for rural electrification. Cuk converter assisted SEIG based wind energy conversion system (WECS) is considered as a master source in the proposed nanogrid, which operates in b...
Article
The expansion of DC nanogrid is projected in rural and remote areas for electrification. Conventional way of powering the rural areas is to extend the central grid to that area. However, extending the network of central grid is a cumbersome process and it involves huge capital cost. Further, with the development of power electronics and evolution o...
Article
Full-text available
This study presents the quadratic boost converter (QBC) as a power electronic interface between the fuel cell (FC) stack and the DC bus of the FC vehicle (FCV). QBC provides the high voltage gain to interface the low voltage, high current and non‐linear FC stack to higher voltage DC bus of the proposed architecture. The output voltage of FC is vari...
Article
Conventionally, base stations of off-grid telecommunication (telecom) towers are powered by diesel generator, which results in high operating cost and carbon emission. Hence, the photovoltaic (PV) wind battery based hybrid renewable energy system (HRES) is proposed for off-grid telecom towers in rural areas. However, owing to high capital cost and...
Article
The Government of India has launched several schemes for rural electrification by enhancing the penetration of renewable energy resources. This paper aims toward a DC nanogrid for rural electrification in India. The DC nanogrid consists of a self-excited squirrel cage induction generator, PV panel, a battery storage for smooth and reliable operatio...
Article
Full-text available
Prolific integration of renewable energy sources (RESs) such as solar photovoltaic systems into the distribution network will result in various issues associated with their intermittent nature. Energy storage is a vital component for overcoming issues associated with the intermittent nature of such RES. Though stationary battery systems are used as...
Article
This paper briefly enlightens on the analysis and modeling aspects of the standalone operation of doubly fed induction generator (DFIG) based wind energy conversion system (WECS). The DFIG in WECS is controlled via a single converter on the rotor terminals. The bat-tery at the converter terminal fulfills the active/reactive power demand of the load...
Article
Full-text available
New telecommunication towers are being installed in off grid or bad grid areas to facilitate the increasing connectivity worldwide. With concerns over environmental issues, such towers are to be ‘green towers’ i.e., environmental friendly. Conventionally, diesel generator is employed to supply power to towers in off grid or bad grid areas, which le...
Article
Full-text available
This paper presents the latest trends and challenges in renewable based distributed power generation, control, and islanding management in hybrid microgrid system (HMS).With evolution of distributed generation (DG), the power conversion, transmission and distribution losses have been reduced significantly in electrical system. Further, the reliabil...
Article
This paper presents the fuel cell based simple electric energy conversion system for supplying the telecommunication towers to reduce the operation and maintenance cost of telecom companies. The telecom industry is at the boom and is penetrating deep into remote rural areas having unreliable or no grid supply. The telecom industry is getting heavil...
Conference Paper
This paper presents a modified power electronic converter topology for photovoltaic water pumping system for agricultural irrigation. The proposed topology employs a general H-bridge inverter with front end buck converter. By using the configuration with suitable firing pulse to the buck converter, any number of levels in the output of the inverter...
Article
Fabrication and characterizations of a hydrogen sensor with palladium Schottky contacts, grown on RF (Radio Frequency) sputtered zinc oxide thin film is reported. Temperature dependence performance analysis of the proposed sensor was carried out at different hydrogen concentrations (50 ppm to 1000 ppm) and temperatures (25°C-200°C) using I-V measur...
Article
This paper investigates the operation and analysis of the photovoltaic water pumping system in detail. Power electronic controllers were designed and developed for the water pumping system using a boost converter along with an inverter followed by an induction motor pump set. The proposed system could be employed in agricultural irrigation under an...
Article
Full-text available
A simple control strategy has been proposed for maximum power point tracking (MPPT) mode and constant output power mode operation of variable speed wind turbine system employing wound rotor induction generators (WRIGs). The control strategy proposed in this paper has been implemented using TMS320LF2407A real time digital signal processor (DSP) and...
Article
Full-text available
This study proposes a simple topology which consists of a single sinusoidal pulse width modulation (SPWM) inverter and battery banks with wind-driven doubly fed induction generators (DFIGs) to dispatch a controllable power to the grid. The excitation of the rotor is established using an SPWM inverter supplied through a set of batteries with the sta...
Article
Full-text available
The operation of wind-driven single inverter-battery-assisted slip-ring induction generator (SRIG) for stand-alone power supplies has been proposed. For effective utilisation of wind energy, the proposed system will function as doubly fed induction generator (DFIG) or shorted stator induction generator (SSIG) depending upon the ac load requirement...
Article
Full-text available
A DSP based closed-loop system has been developed for wind-driven three-phase Self- Excited Induction Generators (SEIGs) using a diode bridge rectifier (DBR) followed by an IGBT inverter. This system is meant for supplying isolated ac loads with a voltage of constant magnitude and frequency, for any operating condition of varying nature of wind spe...
Article
A wind turbine driven variable speed operation of grid connected Wound Rotor Induction Generator for power smoothing operation has been attempted and presented in this paper. The power fed to the grid is controlled by varying the rotor resistance. For this purpose, chopper circuit based rotor resistance control method has been employed. A detailed...
Article
Full-text available
A simple feed forward controller for wind-driven Permanent Magnet Synchronous Generator (PMSG) has been proposed using low cost opamps and a MOSFET inverter. The controller automatically adjusts the pulse widths of the inverter to maintain a constant ac voltage of desired frequency despite the variations in the voltage and frequency of PMSG output....

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