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The aim of this paper is to track a Global Maximum Power Point under Partial Shading Condition from the PV array using Artificial Intelligent (AI) Techniques. Partial Shading Condition is one of the important problems to get Maximum Power from PV array. Partial Shading Condition (PSC) might be anything in the nature such as clouds, leaves, electric poles and the shadow of buildings which shades falls...
This paper presents a systematic design procedure for obtaining a model predictive controller (MPC), encompassed within standard MPC formulations for constrained linear systems to achieve desired output transient responses. The proposed formulation provides a way of overcoming the complexity involved in tuning MPC controllers to accomplish certain output response characteristics. Exponential envelopes...
There are several bidirectional converters are proposed to integrate batteries, ultracapacitors, fuel cell, electric motors, etc., to control the motoring and regenerative braking effectively in Electrical Vehicle (EV); however, in regenerative braking the braking action is much affected because of a) failure of regenerative braking at lower back emf, and b) discontinuous input current at the motor...
In this study we report the fabrication of pure CeCO2, ZnO deposited CeCO2 hybrid core-shell nanoparticles by simple and cost effective co precipitation method. The as synthesized samples were characterized by various experimental techniques such as XRD (X-ray diffraction), FTIR (Fourier Transform Infrared Spectroscopy), UV-Vis absorbance and HRTEM (High Field Transmission Tunneling Microscopy) measurements...
Self consistent first principle calculations on superconducting material WN in cubic phase (NaCl-type) have been performed to understand their fundamental characteristics of the structural, electronic and thermal properties. The bulk modulus (BO), Debye temperature (6D), density of states (N (EF)), electronic specific heat coefficient (γ) and electron-phonon coupling constant (λ) have been computed...
The band gap and Debye temperature of the antimony alloys of the form Sb2TexSe3-x (x = 3, 2, 1, 0), have been computed and the results are corroborated well with the earlier experimental reports. The required input data such as Fermi energy, density of states, etc., have been obtained by using the well known tight binding linear muffin tin orbital technique.
This is a chronicle of the sol-gel auto combustion synthesis of ZnO: K nano grains along with the structural and optical properties. The XRD patterns confirm the substitution of K atoms into ZnO lattice. The grain size, lattice constants and volume are estimated from the XRD patterns. The morphology of the samples are imaged by SEM. The EDAX analysis shows no impurity. The Raman analysis reveals the...
The dynamic voltage restorer (DVR) is one of the modern devices used in distribution systems to protect consumers against sudden changes in voltage amplitude. In this paper, emergency control in distribution systems is analyzed by using the proposed multifunctional DVR control strategy. Also, the multiloop controller using the Posicast and P+Resonant controllers is proposed in order to improve the...
In this paper, taking power-shifting transmission of induction motor with single-chip microcomputer has been developed. The neural networks control technology in which the optimizing algorithm is applied to improve neural networks' learning efficiency makes the speed system possess intelligent characteristics. The results of experiment show that the intelligent control system could reliably and exactly...
The pulsatile flow of blood in narrow arteries with multiple axi-symmetric stenoses under the influence of periodic body acceleration is analyzed, treating blood as Herschel-Bulkley fluid. The non-linear partial differential equations are solved using perturbation method. The effects of various parameters involved stenosis depth, pressure gradient, power law index, body acceleration and other various...
The dynamic voltage restorer (DVR) is one of the modern devices used in distribution systems to protect consumers against sudden changes in voltage amplitude. In this paper, emergency control in distribution systems is analyzed by using the proposed multifunctional DVR control strategy. Also, the multiloop controller using the posicast and P+Resonant controllers is proposed in order to improve the...
The advances on miniaturization techniques and wireless communications have made possible the creation and subsequent development of the Wireless Sensor Networks (WSN) paradigm. The main purpose of WSN is to serve as aninterface to the real world, providing physical information such as temperature, light, radiation, etc. to a computer system. The major difference between this type of networks and...
This paper deals with the simulation and implementation of Boost Power Factor Correction (PFC) Converter along with Electro Magnetic Interference (EMI) Filter. The Boost Converter of PFC Circuit is analyzed, designed and simulated with resistive load. Near unity power factor is obtained by using Boost PFC Converter with EMI Filter. The laboratory model is implemented and the experimental results are...
The resistance spot welding involves electric, thermal and mechanical phenomenon. In this paper, the aspects of process analysis and modeling are discussed. The mechanical properties, electrical properties and thermal properties of the boundary elements vary with the contact state, and can have various values from the worksheets and electrodes. The nugget dimensions and its development process predicted...
The objective of this paper is to develop and analyze an analog circuit capable of delivering regulated output voltage in a dual input buck converter. The major components of the control circuit comprise a PI controller block and a duty ratio limit block. The PI controller is designed through linear control theory and the duty ratio limit on the each power switch is based on the relative amplitude...
This paper suggests a systematic design procedure for the feedback controller employed for the output voltage regulation of a buck-boost type dc-dc converter using evolutionary algorithms namely Genetic Algorithm (GA), Differential Evolution (DE) and Artificial immune system (AIS). The output voltage regulation is formulated as an optimization task with the controller elements as the variables and...
This paper proposes a new real and reactive power coordination controller for a unified power flow controller (UPFC). UPFC has two converters, one is series converter which controls the transmission line real or reactive power flow and other is the shunt converter which controls the bus voltage or shunt reactive power and DC link capacitor voltage. In steady state, the real power demand of the series...
In order to support real-time face recognition using a wireless camera network, we design a data acquisition service to quickly and reliably acquire face images of human subjects from multiple views and to simultaneously index each acquired image into its corresponding pose. In comparison with detection of frontal faces, the detection of non-frontal faces with unknown pose is a much more challenging...
With the advent of social networking and cloud data-stores, user data is increasingly being stored in large capacity and high performance storage systems, which account for a significant portion of the total cost of ownership of a datacenter (DC) [3]. One of the main challenges when trying to evaluate storage system options is the difficulty in replaying the entire application in all possible system...
Nanocrystalline thin films of amorphous, anatase and rutile titanium dioxide are prepared using pulsed laser deposition technique. The refractive indices of these films are determined from the optical transmittance spectra using Swanepol method. The optical band gap, optical conductivity, complex dielectric constant and dissipation factor of the films grown under different conditions are calculated...
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