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891 articles for “quality”
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Analysis of Different Level Shifted PWM Techniques with Cascade H-Bridge Multilevel Inverter for 7-Level
Abstract: Multilevel inverter is a method of generating high voltage waveforms from lower voltage components with less distortion. It is used to solve the quality issues in power. This paper presents the study of different Level Shifted PWM techniques with a 7-level cascade H-Bridge Multilevel Inverter. Foranalysis, Cascade H-Bridge is preferred over other conventional topologies named Diode Clamped & Flying Capacitor due to reduce switching components. Cascaded H-Bridge topology produces less …
Published in International Journal of Microwave Engineering and Technology · Vol. 8, Issue 1, 2022 · pp. 1–7 Read article
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Artificial Neural Networks based Four-Leg Matrix Converter for Linear and Non-Linear Load
Abstract: The 4-leg matrix converter, which it is capable of providing a 3-phase plus neutral supply from a standard balanced 3-phase source . Tralatitious 3x3 matrix converters deliver bounded use in this application as they are only capable of supplying a poised three-phase payload. It would be suitable to be able to power unbalanced and nonlinear loads ,requiring that the converter provides a neutral connection .This goal can be achieved by …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 2, Issue 1, 2016 · pp. 45–53 Read article
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Enriched Technique for DG Placement and Sizing by GA Optimization
Abstract: The demand of proficient and high quality power is rising in the world of electricity. Power utilities are facing major challenges as the demand of power system is growing exponentially. To meet this demand, the present need is to provide the consumer demand locally by Distributed Generation (DG). However, a large number of DG units in a distribution system may occasionally provide to high levels of harmonic distortion even though …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 2, Issue 2, 2016 · pp. 1–12 Read article
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Competitive Analysis for the Improvement of Power Factor using Zeta Converter and SEPIC Converter for BLDC Motor
Abstract: In this paper, we studied the competitive analysis for the improvement of power factor using zeta converter and SEPIC converter for BLDC motor by reducing the configuration of sensor. For the low power factor application, here we can control the speed of motor by varying the voltage of inverter by giving the feedback of BLDC motor drive. A low frequency is used for electromagnetic communication of the motor which reduce …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 5, Issue 1, 2019 · pp. 28–35 Read article
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Fault Current Limiting by Using Series Transformer
Abstract: In this study, we have built the series transformer-based solid-state Fault Current Limiter for distribution station. In the distribution line, overcurrent condition occurs very often which increases the chances of damaging the load. By using this system, we can detect the overcurrent. By using the measuring circuit of PZEM004 Current Sensor, overcurrent condition can be easily detected; and by taking it as a reference, the automatic current limiting process can …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 5, Issue 1, 2019 · pp. 10–18 Read article
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Analysis of Prefluxing Method for Transformer Inrush Current Reduction
Abstract: Inrush Current is a harmonic-rich current which flows in transformer when it is energized. Inrush current affect the winding of transformer by means of its structural deformation, induce the voltage distortion, and reduce the power quality. There are number of methods available for transformer inrush current’s reduction. Among them, the latest and emerging method is the prefluxing method. In this paper, same has been explained with its results of simulations …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 8, Issue 1, 2022 Read article
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Automation Process for Power Management in Stand-Alone Photovoltaic System
Abstract: This paper is focused to the development of an automation process for managing the energy generated by stand-alone photovoltaic installations. The work not only includes the study and analysis of the proposed method, but also the design and manufacturing of a prototype that controls the process of energy transfer from the PV array to the load circuit. The design has been specifically developed for a dual inverter configuration that uses …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 8, Issue 2, 2022 · pp. 1–16 Read article
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Superconducting Magnetic Energy Storage Based Dynamic Voltage Restorer for Grid-Connected Hybrid PV-Wind Power System Modeling and Simulation
Abstract: The DVR-connected series will use three injections in a single application or three injections in three following converters to inject three compensating compressors in the main supply. The injection transformer raises the released VSI's output voltage to the required level. The converter also isolates the DVR circuit from either the transmission network. The voltage source inverter's (VSI) output power and the quality of the filter used to connect the injection …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 8, Issue 2, 2022 · pp. 35–42 Read article
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Renewable Energy Revolution: Hybrid PV and Wind Power Generation
Abstract: Considering connectivity is not economically viable nor supported by the key players, accessing the rural population without electricity is currently not conceivable through grid extension. Furthermore, conventional energy options, such as fuel-based systems, are gradually being dropped from the agendas for rural development due to the rise in oil costs and the intolerable effects of this energy source on both consumers and the environment. The most effective method to provide …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 9, Issue 1, 2023 · pp. 1–7 Read article
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Denoising of Computer Tomography images using Wavelet based Multiple Thresholds Switching (WMTS) filter
Abstract: Computer Topography images are often corrupted by salt and pepper noise during image acquisition and /or transmission, reconstruction due to a number of non-idealities encountered in image sensors and communication channels. Noise is considered to be the number one limiting factor of CT image quality. A novel decision-based filter, called the wavelet based multiple thresholds switching (WMTS) filter, is used to restore images corrupted by salt-pepper impulse noise. The filter …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 1–6 Read article
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Prioritized Multimedia Transmission Using AODV Routing Protocol in NS2
Abstract: In wireless multimedia streaming, there is a need for allowing client prioritization so that provision of end user can be enabled with alleged quality in direct relationship with client device consequence. Currently, the same priority is given to all clients, independent of their characteristics, often resulting in unfair distribution of throughput. This paper proposes a priority-based scheme for QoS in MANET by classifying the traffic flow in to network into …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 2, 2015 · pp. 28–38 Read article
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ADAPTIVE NOISE CANCELLATION USING NORMALIZED LMS ALGORITHM
Abstract: ABSTRACT An adaptive filter is a digital filter that self adjusts its transfer function according to an optimizing algorithm. There are a number of optimizing algorithms available, but the performance, simplicity and stability of LMS algorithms outweigh other algorithms, thus LMS algorithm have become increasingly popular. The digital filter structure used in adaptive filtering is usually FIR with transversal or tapped delay line realization. Adaptive filtering is one of the …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 2, 2015 · pp. 45–58 Read article
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Congestion Control in WDM Networks
Abstract: Because of enormous transmission of information through optical strands, congestion happened routinely and it turned into a major bottleneck to the stream of information in any procedure. Numerous techniques are there to keep away from congestion however those systems for the most part include colossal expense connected with quality certification. These systems are relevant to the zone which is rich in base and assets, however these procedures are extremely hard …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 2, Issue 2, 2016 · pp. 1–5 Read article
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Design of Transmitter and Receiver to Reduce PAPR and ISI in Multi-Carrier OFDM System: A Review
Abstract: In wireless communication, concept of the parallel transmission of symbols is used to achieve high throughput and better transmission quality. Orthogonal Frequency Division Multiplexing (OFDM) is one of the techniques for parallel transmission and it converts frequency selective fading channel into N flat fading channels, where N is the number of sub-carriers. orthogonality is maintained by keeping carrier spacing multiple of 1/Ts by using Fourier transform methods, where Ts is …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 43–51 Read article
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Route Planning Using Vehicles' Routing Algorithms
Abstract: The term "vehicle routing problem" (VRP) refers to optimization issues in the transportation, distribution, and logistics industries. They primarily concentrate on supplying a large number of customers with a variety of cars. Function of vehicle routing problem VRP is Determine the best path from a starting point to a road map destination using route planning tools. Because road traffic circumstances (e.g., congestion level, road incidents, etc.) can change during a …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 7, Issue 2, 2021 · pp. 20–24 Read article
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Cutting Tools with Graphene Coating and Its Uses
Abstract: Graphene attracts a certain interests because of its amazing properties like high temperature operations, high mechanical quality and greasing up properties and so forth. Arshi and Dighewar have examined to enhance surface unpleasantness, apparatus life and creation rate of materials by utilizing a defensive covering of titanium nitride (TiN) over steel devices.[1] They have acquired attractive results. In this paper, we utilize graphene as a covering on metal cutting apparatuses …
Published in International Journal of Applied Nanotechnology · Vol. 2, Issue 1, 2016 · pp. 24–26 Read article
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Nanorobotics: A Review
Abstract: The field of robotics is expanding quickly and has the potential to change the world in many ways. Robots are now an essential part of our lives, doing everything from boosting production and efficiency to breaking new ground and entertaining us. To fully realize the potential of this fascinating field, robotics development must be carried out responsibly and ethically as we continue to make technological advancements. Nano-robotics is a fast-developing …
Published in International Journal of Applied Nanotechnology · Vol. 9, Issue 2, 2023 · pp. 36–43 Read article
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Article on Density Functional Theory Simulation: A Review
Abstract: Density Functional Theory (DFT) is a powerful computational approach in quantum mechanics, widely utilized for studying the electronic structure of atoms, molecules, and solids. It treats electron density as the central quantity, bypassing the complexities of solving the Schrödinger equation for individual electrons. The Hohenberg-Kohn theorem establishes that a system's ground-state energy uniquely depends on its electron density, facilitating a focus on this fundamental property. In DFT, the total energy …
Published in International Journal of Energetic Materials · Vol. 9, Issue 2, 2023 · pp. 1–4 Read article
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METALLURGY OF INVESTMENT CASTING TECHNOLOGY
Abstract: Investment casting is the most widely used process for several centuries, known as ‘lost wax casting’ or ‘precision casting’. This process is known to produce complex castings with good surface finish and dimensional accuracy. Poor quality of castings is always marked by inadequate surface finish, hardness and excessive shrinkage of the wax pattern. This review paper discusses on the history of investment casting technology, its processing techniques and parameters, casting …
Published in International Journal of Metallurgy and Alloys · Vol. 1, Issue 1, 2015 · pp. 1–14 Read article
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Optimization Process Parameters of Manganese Phosphate coating developed on En-19 Steels by Statistical Design of Experiment
Abstract: Phosphating is a chemical conversion process in which constituents of a metal surface with a view to produce thin adherent protective coating of insoluble crystalline phosphate by reaction with phosphoric acid solution. This conversion coating should have strong interfacial adhesion and porous enough. The growth of phosphate coating is influenced by method of cleaning of metal surface to be treated before treatment, use of surface activating rinses and acid or …
Published in International Journal of Metallurgy and Alloys · Vol. 2, Issue 2, 2016 · pp. 6–12 Read article