Pranav Prakashrao Dhond

Bio: Pranav Prakashrao Dhond is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Ćuk converter & Converters. The author has an hindex of 1, co-authored 2 publications receiving 15 citations.

Non-isolated Sextuple Output Hybrid Triad Converter Configurations for High Step-Up Renewable Energy Applications

Abstract: This article presents a new non-isolated DC-DC sextuple output hybrid triad converter configurations for high step-up renewable energy applications. Total 8 (eight) converters configurations are obtained by combining SEPIC/SI-SEPIC, Cuk/SI-Cuk, and Boost/SI-Boost which is highly suitable for step-up renewable applications where DC-DC multi-output converters/choppers are needed; such as a solar multilevel DC-AC converter (MLI), HVDC, hybrid/electric and electric vehicles. The most important characteristics of the proposed converter configurations are (i) only one power control semiconductor switch, (ii) offer six different DC outputs with different conversion ratio, (iii) non-isolated (without transformers) Converter topologies, (iv) high voltage at the output side without using large duty cycle and (v) modular DC-DC converter structure. The simulation results are presented and it validates the practicability, functionality, and the idea of suggested sextuple output hybrid triad converter configuration.

Recent genre based categorized comparisons of bollywood movies through radar plots

Abstract: In this paper, the recent genre based categorized comparisons of Bollywood movies (Hindi Movies) releasing between 2010- 2015 is presented through radar plots. The aim of this paper is to analyze number of Bollywood movies with different genre being released every year and to know which genre is more dominating in the industry. The recent genre such as action, comedy, drama, horror, thriller, romance is taken into consideration for comparison, while the rest of the genre is considered in other category. Recent Bollywood movies according to their genre are studied statistically and the compared results are graphically provided. Results of paper summarize which categories of movies are more popular in Indian locality.

A Hybrid Photovoltaic-Fuel Cell for Grid Integration With Jaya-Based Maximum Power Point Tracking: Experimental Performance Evaluation

Abstract: This paper deals the grid integration of photovoltaic (PV), fuel cell, and ultra-capacitor with maximum power point tracking (MPPT). The voltage oriented control for the grid-integrated inverter is proposed to regulate dc link voltage. Here, the fuel cell is employed as the main renewable energy source and PV as an auxiliary source with ultra-capacitor, which compensates power variation. An integrated CUK converter is proposed for peak power extraction from PV modules. The Jaya-based MPPT method is employed to achieve fast PV tracking ability with zero deviation around maximum power point (MPP) and has accelerated searched performance in equated with particle swarm optimization (PSO) and artificial bee colony (ABC) techniques. The hybrid PV-fuel cell with ultra-capacitor as energy storage works effectively under varying operating conditions. Compared to other energy storing devices, ultra-capacitor provides a fast dynamic response by absorbing/delivering power fluctuations. The hybrid PV-fuel storage control methodologies are experimentally validated using dSPACE (DS1104) board that provides optimal power extraction with stable power affirmation for a standalone/grid-connected system.

Non-Isolated High-Gain Triple Port DC–DC Buck-Boost Converter With Positive Output Voltage for Photovoltaic Applications

Abstract: The solar PV based power generation systems are growing faster due to the depletion of fossil fuels and environmental concerns Combining PV panels and energy buffers such as battery through multi-port converter is one of the viable solutions to deal with the intermittency of PV power The goal of this paper is to design and analyze the proposed triple port DC-DC buck-boost converter for high step-up/step-down applications It has two unidirectional ports (port-1 and port-3) and one bi-directional port (port-2) for harnessing photovoltaic energy and charging the battery At port-1, the combined structure of buck and buck-boost converter is used with a particular arrangement of switches and inductors The step-up/step-down voltage conversion ratio is higher than the conventional buck-boost converter, and the polarity of the output voltage is maintained positive The battery is added at the bi-directional port, for the storage of energy through the bi-directional boost converter The switches operate synchronously for most of the modes making the control strategy simple The characteristics and modes of operation along with a switching strategy, are elaborated Experimental results are presented which validate the agreement with the developed theoretical expectation

Double Stage Double Output DC–DC Converters for High Voltage Loads in Fuel Cell Vehicles

Abstract: This article aims to enhance the output voltage magnitude of fuel cells (FCs), since the actual generation is low. The traditional technique is too complicated and has a cascaded or parallel connection solution to achieve high voltage for multiple loads in vehicles. In this case, electronic power converters are a viable solution with compact size and cost. Hence, double or multiple output DC–DC converters with high voltage step up are required to feed multiple high voltage loads at the same time. In this article, novel double stage double output (DSDO) DC–DC converters are formulated to feed multiple high voltage loads of FC vehicular system. Four DSDO DC–DC converters called DSDO L–L, DSDO L-2L, DSDO L-2LC, and DSDO L-2LC are developed in this research work and all the converters are derived based on the arrangement of different reactive networks. The primary power circuitry, conceptual operation, and output voltage gain derivation are given in detail with valid proof. The proposed converters are compared with possible parallel combinations of conventional converters and recently available configuration. Comprehensive numerical simulation and experimental prototype results show that our theoretical predictions are valid and that the configuration is applicable for real time application in FC technologies for ‘more-electric vehicles’.

Multiple-Output DC–DC Converters: Applications and Solutions

Abstract: Multiple-output DC–DC converters are essential in a multitude of applications where different DC output voltages are required. The interest and importance of this type of multiport configuration is also reflected in that many electronics manufacturers currently develop integrated solutions. Traditionally, the different output voltages required are obtained by means of a transformer with several windings, which are in addition to providing electrical isolation. However, the current trend in the development of multiple-output DC–DC converters follows general aspects, such as low losses, high-power density, and high efficiency, as well as the development of new architectures and control strategies. Certainly, simple structures with a reduced number of components and power switches will be one of the new trends, especially to reduce the size. In this sense, the incorporation of devices with a Wide Band Gap (WBG), particularly Gallium Nitride (GaN) and Silicon Carbide (SiC), will establish future trends, advantages, and disadvantages in the development and applications of multiple-output DC–DC converters. In this paper, we present a review of the most important topics related to multiple-output DC–DC converters based on their main topologies and configurations, applications, solutions, and trends. A wide variety of configurations and topologies of multiple-output DC–DC converters are shown (more than 30), isolated and non-isolated, single and multiple switches, and based on soft and hard switching techniques, which are used in many different applications and solutions.