Novel Design and Implementation of Portable Charger through Low-Power PV Energy System

2014 ◽  
Vol 925 ◽  
pp. 495-499 ◽  
Author(s):  
Yousif I. Al-Mashhadany ◽  
Hussain A. Attia
Keyword(s):  
Low Power ◽  
Cost Effective ◽  
Energy System ◽  
Practical Implementation ◽  
Power Devices ◽  
Output Current ◽  
Power Sources ◽  
Charging Current ◽  
Solar Powered ◽  
Novel Design

This paper proposes a novel design for a solar-powered charger for low-power devices. The level of the charging current is controllable and any residue power is saveable to a rechargeable 9V battery. Two power sources (AC and solar) are used, and two charging speeds are possible. Quick charging is 20% of the battery output current (almost 180mA/hr) so the current is limited to 34 mA. Two types of cellular batteries (5.7V and 3.7V) can be charged. Normal charging is 10% of the cellular battery output current (almost 1,000mA/hr), so the charging current is limited to 100mA. The design uses only a few components so the system is cost effective besides being highly portable. It was simulated on MultiSim Ver. 11 before being implemented practically to validate it. The results from the simulation and the experiment show the designs sufficient feasibility for practical implementation.

scholarly journals Sinusoidal Pulse Width Modulation for a PhotoVoltaic Based Single Stage Inverter

2021 ◽  
Author(s):  
Bolisetti Kavya Santhoshi ◽  
Kuppusamy Mohanasundaram ◽  
Vishnu Kumar Kaliappan ◽  
Ravishankar Sathyamurthy
Keyword(s):  
Rural Areas ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Cost Effective ◽  
Electrical Energy ◽  
Energy System ◽  
Single Stage ◽  
Power Sources ◽  
Sinusoidal Pulse Width Modulation

Abstract The work proposed in this paper focuses on providing an effective solution to shortage of power in rural areas with an effective technique implemented in an economically feasible way. The traditional Inverters used for either residential or commercial purposes consume electrical energy from the grid to fulfill the charging and discharging of the battery, which may lead to overloading. The shortcomings of the traditional inverters such as Non-Renewable nature of power sources, increased cost of manufacturing, and multi-stage conversion complexity, are considered by the researchers for improvement. As a result, an attempt has been made to provide a cost effective renewable energy system with single stage topology for AC power applications. Single stage power conversion with allowed shoot through state is used here to avoid additional components and reduce the switching losses. Unlike the traditional inverters, the Quasi Impedance Source Inverter that is brought forward can be utilized as a Standalone system or a capable backup at the time of power outages. Sinusoidal pulse width modulation (SPWM) is applied to attain reduced harmonics which are measured by observing the harmonic pattern in Total Harmonic Distortion (THD) curve. The lab results obtained through MATLAB simulation confirm the noteworthy diminution of THD level in the proposed system compared to the reported one. Usage of Photovoltaic (PV) Panel to tap energy with reduced stochastic fluctuations due to high filtering capacity of the proposed circuit, eliminating the need of additional filters, is the uniqueness of this technique.

Energy System Feasibility of a High Efficient Building

2015 ◽  
Vol 737 ◽  
pp. 159-163
Author(s):  
Gabriele Battista ◽  
Luca Evangelisti ◽  
Claudia Guattari ◽  
Aldo Fanchiotti ◽  
Luciano Santarpia
Keyword(s):  
Energy Efficient ◽  
Fossil Fuels ◽  
Energy Requirement ◽  
Cost Effective ◽  
Energy System ◽  
Point Of View ◽  
World Population ◽  
High Efficient ◽  
Solar Powered ◽  
Plant Configuration

World population is steadily increasing and it is estimated to reach 9 billion in 2050. Moreover, 72% of people live in big cities and the buildings energy requirement is growing, reaching the 45% of the total energy amount.This paper presents of a building energy efficient properly designed to realize a solar-powered house that is cost-effective, energy-efficient, and attractive. The study applied a methodology which is able to identify the best building plant configuration under a technical, economical and environmental point of view. It has been demonstrated that the proposed plant allows to reduce the fossil fuels consumption compared to a plant conventionally employed, with a proportional reduction of the greenhouse gas emissions of about 30% per year.

Solar Thermophotovoltaic Converters Based on Tungsten Emitters

2006 ◽  
Vol 129 (3) ◽  
pp. 298-303 ◽  
Author(s):  
V. M. Andreev ◽  
A. S. Vlasov ◽  
V. P. Khvostikov ◽  
O. A. Khvostikova ◽  
P. Y. Gazaryan ◽  
...  
Keyword(s):  
Band Gap ◽  
High Efficiency ◽  
Radiation Spectrum ◽  
Cost Effective ◽  
Fresnel Lens ◽  
Photocurrent Density ◽  
Back Side ◽  
High Concentration ◽  
Emitter System ◽  
Solar Powered

Results of a solar thermophotovoltaic (STPV) system study are reported. Modeling of the STPV module performance and the analysis of various parameters influencing the system are presented. The ways for the STPV system efficiency to increase and their magnitude are considered such as: improvement of the emitter radiation selectivity and application of selective filters for better matching the emitter radiation spectrum and cell photoresponse; application of the cells with a back side reflector for recycling the sub-band gap photons; and development of low-band gap tandem TPV cells for better utilization of the radiation spectrum. Sunlight concentrator and STPV modules were designed, fabricated, and tested under indoor and outdoor conditions. A cost-effective sunlight concentrator with Fresnel lens was developed as a primary concentrator and a secondary quartz meniscus lens ensured the high concentration ratio of ∼4000×, which is necessary for achieving the high efficiency of the concentrator–emitter system owing to trap escaping radiation. Several types of STPV modules have been developed and tested under concentrated sunlight. Photocurrent density of 4.5A∕cm2 was registered in a photoreceiver based on 1×1cm2GaSb cells under a solar powered tungsten emitter.

An Innovative Low Cost Well Monitoring Solution: W.A.N.D

2021 ◽  
Author(s):  
Jean Grégoire Boero Rollo ◽  
John Richard Ordonez Varela ◽  
Tayssir Ben Ghzaiel ◽  
Cedric Mouanga ◽  
Arnaud Luxey ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Low Power ◽  
Low Cost ◽  
Field Measurements ◽  
Cost Effective ◽  
Complex Environment ◽  
Sensor Device ◽  
Magnetic Field Measurements ◽  
Pipeline Monitoring ◽  
Harsh Conditions

Abstract Wireless Autonomous Nano-sensor Device (WAND) system is a disruptive cost-effective micro-system for well monitoring. It allows to realize pressure, temperature, inertial, and magnetic field measurements in harsh conditions; it also offers Bluetooth low-power communication and Wireless charging capabilities. Analysis’ results of an industrial offshore pilot realized in Congo (a world first in O&G industry in such complex environment), and major improvements implemented after this pilot are reported in this paper. Accomplished advancements comprise hardware and software developments extending operation lifetime, and simplifying on-site utilization. To date, there is not a commercial solution of this type in the market, the realization of this project is a real innovation allowing practical and low-cost monitoring during well intervention while minimizing the risks associated with standard Rigless intervention. Other applications regarding dry-tree wells on tension-leg platforms (TLP), drilling and completion operations, and pipeline monitoring are being investigated, too.

scholarly journals DESIGN OF RF ENERGY HARVESTING SYSTEM FOR ENERGIZING LOW POWER DEVICES

2012 ◽  
Vol 132 ◽  
pp. 49-69 ◽  
Author(s):  
Norashidah Md. Din ◽  
Chandan Kumar Chakrabarty ◽  
Aima Bin Ismail ◽  
Kavuri Kasi Annapurna Devi ◽  
Wan-Yu Chen
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Power Devices ◽  
Rf Energy Harvesting ◽  
Energy Harvesting System ◽  
Rf Energy

scholarly journals Bidirectional DC/DC Power Converter for Hybrid Yacht Propulsion System

2018 ◽  
Vol 2 (Special edition 2) ◽  
pp. 133-142
Author(s):  
Saša Sladić ◽  
Damir Kolić ◽  
Marko Šuljić
Keyword(s):  
Low Power ◽  
Critical Points ◽  
High Power ◽  
Thermal Imaging ◽  
Cost Effective ◽  
Power Converter ◽  
Propulsion System ◽  
Typical Application ◽  
Electric Drives ◽  
Dc Power

Typical application of bidirectional DC/DC power converter exists in hybrid cars. Recently, a similar approach has been applied in hybrid propelled ships as well. In this paper, a novel low power bidirectional DC/DC power converter of standard Buck/Boost topology has ben designed in order to explore possibilities of the high power design in maritime applications. In order to discover critical points of a design, thermal imaging has been investigated. The results clearly indicate that the proposed solution is more cost effective than a typical standard bidirectional DC/DC power converter. Likewise, the improvement in maneuvering of the propelled vessel system with two and more electric drives has been investigated and compared to a classical diesel, single engine propulsion system.

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