Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

THD Analysis for PV Based Cascaded Multilevel Inverters with MPPT Technique

Abstract: Due to the shortage of fossil fuels and environmental reasons caused by conventional power generation, photovoltaic energy integrated with multilevel inverters has gained popularity This work presents a comparative analysis of a 5-level and 7-level cascaded H-bridge multi level inverter (CHB-MLI) integrated with photovoltaic (PV) system The voltage output of a PV array varies with changes in atmospheric temperature and irradiation Therefore, (Perturb and Observe) P&O maximum power point tracking (MPPT) control technique with boost converter is used in this work to extract the maximum voltage from PV array To improve the performance quality in term of total harmonic distortion (THD) and switching losses, genetic algorithm (GA) based selected harmonic elimination pulse width modulation SHE-PWM technique is used to control the firing angles of PV based 5-level and 7-level CHB-MLI The comparative results are obtained using MATLAB/ SIMULINK software

Design and comparison of discrete swarm intelligence algorithms for makespan minimization of parallel machines for complex RNA sequence allocation jobs

Abstract: This paper presents discrete combinatorial versions of popular swarm intelligence algorithms for makespan minimization on the systems connected through parallelization for the job distribut...

Design and Performance Evaluation of Bidirectional SS-WDM-PON Using FTTH Architecture

Abstract: A simple and cost efficient spectrum sliced bidirectional WDM-PON (wavelength division multiplexed-passive optical network) with FTTx (fiber to the x, where x=home, hospital, business, school, mall, etc.) is modelled with EDFA, WDM mux-demux splitter and APD photo detector for long haul transmission system and a solution to last mile problem. The proposed model has been designed for 3 Gbps non-return to zero (NRZ) transmission system over 170 km long bidirectional optical fiber. The proposed model presents a cost and energy efficient optical fiber network as a solution to high bandwidth demand applied using spectrum slicing technique. Further, it has also been compared with the existing reported work on the basis of quality factor, BER and eye diagrams. The proposed model enhances the performance in terms of bit error rate and quality factor at the downstream and upstream end of the systems.

Effect of Nonlinear Non-homogeneity of Floating Granular Pile and Soil on Settlement

Abstract: Ground improvement using granular piles (GPs) is a good alternative to a concrete pile because it increases the load carrying capacity and minimises the settlement of foundations. The present study incorporates the true field conditions with consideration of the nonlinear variation of deformation modulus for GP and soil both. An analytical methodology developed to incorporate nonlinear deformation modulus in pile and soil matrix. Thus, the response of non-homogeneous floating granular pile in non-homogeneous soil is evaluated with respect to settlement influence factor, normalised shear stresses, axial load distribution along granular pile–soil interface and percentage of load transferred to the base to study its true behaviour. An analytical approach based on the continuum is presented in terms of nonlinear variation of deformation modulus of the granular pile and surrounding soil. Formulations for pile elemental displacement equations incorporating linear to nonlinear non-homogeneity parameters, α and δ, for floating granular pile and β and ϒ for non-homogeneous soil are presented. With the increment in relative length of the pile (L/d), the reduction in the magnitude of settlement influence factor further increases. The increase in linear and nonlinear non-homogeneity parameters of soil, β and ϒ, reduces the shear stresses in the upper region of soft soil along with granular pile–soil interface and transfers them to the lower stiffer region of soil.