Search results for “module”

Published Subscription 21 Mar 2018

Performance Evaluation of Single Phase Cascaded Nine Level Inverter using Photovoltaic (PV) SystemPerformance Evaluation of Single Phase Cascaded Nine Level Inverter using Photovoltaic (PV) System

By T. Devaraju, C. Dinakaran

Abstract: Multilevel inverters are considered at present as the state of the art power conversion systems for high power and power quality demanding applications. This paper’s objective is to propose a modified cascaded nine-level inverter topology for a virtually sinusoidal output voltage, less number of power switches, results in decreased complexity and reduced total harmonic distortion (THD). The structure is simple and easy to be extended to higher level but also …

Published in Trends in Electrical Engineering · Vol. 8, Issue 1, 2018 · pp. 30–47 Read article

Published Subscription 4 Feb 2019

Performance Analysis of FLC-NR based Loss Minimisation Algorithm for BLDC Motor

By Ashna Salim, Prince A

Abstract: Brushless DC motors are increasingly used in industry due to their high power density and ease of control. Efficiency of BLDC motor is reduced due to various losses like copper loss, core loss and switching loss. A fuzzy logic based loss minimisation algorithm is described in this study. Selective harmonic elimination-based pulse-width modulation to optimise both the converter switching losses along with machine core and copper losses is done based …

Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 51–59 Read article

Published Subscription 2 Feb 2019

Brushless DC Motor Drive System with Reduced DC-Link Capacitor for Reduction in Torque Ripple

By Haritha Babu, Binoj Kumar A.C

Abstract: Presence of large value of dc-link capacitance in a brushless DC motor (BLDCM) drive system leads to an increase in the weight and volume of the system. A combination of an IGBT switch along with a small value of DC-link capacitance is proposed in this paper. BLDCM will be supplied by DC-link capacitor and rectified mains supply alternately via DC-link IGBT chopping during the time when the output voltage of …

Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 19–27 Read article

Published Subscription 14 Aug 2019

Simulation of Dynamic Voltage Restorer for Voltage Sag Mitigation

By G S Gayathri, K Manimala

Abstract: In recent years, power quality is the major issue in transmission and distribution network. This paper concentrates on one of the power quality problem, such as voltage sag. A novel mitigation system is simulated using Dynamic voltage restorer (DVR). The proposed system is boosting the sagged phase voltage by deriving the voltages from other healthy phases. The system is designed with two ac chopper circuits and two transformers. The voltage …

Published in Trends in Electrical Engineering · Vol. 5, Issue 2, 2015 · pp. 7–13 Read article

Published Subscription 16 Aug 2019

Harmonic Analysis for Different PWM Techniques

By madhavi R, Reddy C H

Abstract: In this paper, harmonic analysis of different pulse width modulation algorithms for induction motor drives is presented. This paper uses the PWM techniques such as conventional SVPWM, discontinuous PWM, simplified SVPWM and digital SVPWM. In this study, the conventional SVPWM and discontinuous PWM requires the angle and sector information but the simplified SVPWM uses the imaginary switching times which can be obtained from the reference voltages. In this study, the …

Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 26–31 Read article

Published Subscription 20 Jan 2020

ENERGY MONITORING USING GSM

By M. Dharanidharan, V. Aravindan, S. Vijayachitra

Abstract: The main objective is to provide awareness to the electricity consumers about their domestic usage of electricity through the GSM. Increasing population and the development of technology leads to the over consumption of the electricity. The objective is to effectively use the electricity for domestic purposes. By developing this energy monitoring system, consumer can be able to understand the consumption of electricity. Since mobile phones is the most common gadgets …

Published in Trends in Electrical Engineering · Vol. 9, Issue 3, 2019 · pp. 18–21 Read article

Published Subscription 12 Jun 2018

Dynamic Approach to Evaluate Costing through Software with Integration of CAD/CAM

By Harshvardhan Pandey

Abstract: This paper provides the approach to evaluate costing of a model through the use of CAD/CAM integration with establishing rules and scripting. Costing includes the direct and indirect cost of the product. The earlier process of cost estimation was laborious for engineers and it takes long time to evaluate the cost of a finished product. This methodology provides the knowledge to integrate software technology with production knowledge by establishing the …

Published in Trends in Machine design · Vol. 5, Issue 1, 2018 · pp. 21–32 Read article

Published Subscription 6 Apr 2023

DESIGN AND MACHINEWORK INVOLVED IN FIRE-FIGHTING ROBOT

By Priyanka Panda

Abstract: Due to a lack of technological advancement, battling fires has long been a dangerous job that frequently results in devastating losses. A human being is prone to error, and current firefighting techniques are ineffectual and inefficient. The use of robots rather than people to deal with fire dangers is a recent idea that has gained popularity. Our project entails building a robot that can recognise and put out a fire …

Published in Trends in Machine design · Vol. 9, Issue 2, 2022 · pp. 1–5 Read article

Published Subscription 12 Jun 2018

Vibration Analysis Of Pump Shaft Using Finite Element Analysis Software: A Review

By Harsh R Pandya

Abstract: Rotating shaft and other components in pump system revolving at speed close to the natural frequency of the system are unsafe because at natural frequency the amplitude of vibration is highest and it generate the excessive stresses which can cause rotating components failure. The objective of the review paper is to study the vibration characteristics of pump shaft system of finite element method in software module. The knowledge about the …

Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 46–54 Read article

Published Subscription 29 Sep 2021

Smart Carburetor (A New Technology/Methods to Convert All Fuels into Useful Energy/Shaft power/ Engine Power, in Automobiles)

By Shyam Sunder Yadav

Abstract: The combustion of fuels is and will be in the nearest future a basic way of acquiring the energy, the work of non-materials are used in this equipment or design that transform all fuels into usable energy or shaft power to improve the performance of that particular vehicle. here simply convert all fuels into a homogeneous mixture (which is a little non-homogeneous in chemical nature) and turn all fuel particles …

Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 19–23 Read article

Published Subscription 15 May 2018

Inter-satellite Optical Wireless Communication (IsOWC) System Design: A Study

By SANAMDEEP SINGH, Gundeep Singh, Ramandeep Kaur, Maninderpal Singh

Abstract: AbstractLaser communication links in space are attractive alternatives to present day microwave links. Space communication as employed in satellite to satellite link is traditionally performed using microwaves. High capacity inter-satellite communication crosslinks will permit more efficient and more reliable operation of future satellite systems. The mass, power consumption and size of optical transceiver module will be smaller than that of a microwave transceiver. On the other hand, inter-satellite communication is …

Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 1, 2018 · pp. 20–24 Read article

Published Subscription 26 Mar 2019

Some Investigations with Ultra High Speed Low Power All Optical digital Logic Gates

By Devendra Kr. Tripathi

Abstract: AbstractThis paper illustrates design for an all-optical optical inverter and universal digital logic NAND gate using NRZ format, realized by MZI structure. Miscellaneous evaluations have been done to examine the designs performance in terms of their generated output waveforms. Simulations have been done for significant design parameters as chirp factor, laser power and bit error rate at different data-rates. Optical Logical gate outputs have been verified. It showed good design …

Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 3, 2018 · pp. 17–30 Read article

Published Subscription 4 Mar 2019

Evaluations with RZ/NRZ Optical-CDMA Link

By Devendra Kr. Tripathi

Abstract: AbstractThis article presents the proposed novel design for hierarchical asynchronous optical code-division multiple-access scheme; performance was investigated for numerous key parameters. With single active user, the RZ_ON_OFF ramp OCDMA scheme performance is better than other schemes over shorter reach; NRZ_OCDMA scheme is better for longer reach, depicted BER is in the range of 10-100 to 10-42 with three users and 10-28 to 10-12 with 32 active users over the randomly …

Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 12–40 Read article

Published Subscription 30 Mar 2019

An Analysis of Optical Transmission System using Fiber Bragg Grating (FBG) with Power Optimization and Dispersion Compensation

By T. Sriram Prasanth, B. Rajesh, G. Aarthi

Abstract: AbstractThe Fiber Bragg Grating (FBG) is a low cost filter for wavelength selection and also has low insertion loss. We know that Dispersion Compensation (DC) and Power Optimization (PO) are one of the most important parameters of the optical communication system. In this proposed communication model, dispersion compensation has been achieved and also we optimized almost same power at the receiver end, also we have calculated output power for different …

Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 2, 2015 · pp. 1–5 Read article