scholarly journals Feasibility Analysis of the Power Supply Model Using Solar PV for the Public Lighting System in Hanoi

2021 ◽  
Vol 5 (1) ◽  
pp. 14-21
Author(s):  
Hang Le Thi Thuy ◽  
Dong Ngo Nguyen
Keyword(s):  
Solar Energy ◽  
Power Supply ◽  
Local Governments ◽  
Traffic Accidents ◽  
Electricity Consumption ◽  
Total Power ◽  
Solar Pv ◽  
Lighting System ◽  
The Public ◽  
Total Power Consumption

Public lighting is an essential service in today’s cities, towns, and highways, including improving public safety and reducing traffic accidents. Public lighting could consume up to 40% of the energy budget of the local governments. Therefore, the technical innovations related to public lighting always bring significant value to municipal governments. In Vietnam, the public lighting in big cities account for 25% of the total power consumption. The solutions to reducing electricity consumption for public lighting are also of interest to domestic and foreign organizations, including the use of on-site energy such as wind and solar energy. In this paper, on the basis of the current state of the public lighting system and the potential of solar energy in Hanoi, the authors have roughly calculated the technical and economic efficiency of power supply solutions using solar energy in public lighting. The proposal of solving the power supply problem, by using solar energy in public lighting in Hanoi is another result of the paper.

scholarly journals EVALUATION OF ADDITIONAL LOSSES AND EFFICIENCY ELECTRICITY CONSUMPTION REGULATION IN LOCAL POWER SUPPLY SYSTEMS

2020 ◽  
pp. 7-21
Author(s):  
S. Denysiuk ◽  
T. Bazyuk
Keyword(s):  
Power Consumption ◽  
Electric Power ◽  
Power Supply ◽  
Electricity Consumption ◽  
Total Power ◽  
Local Power ◽  
Higher Harmonics ◽  
Total Power Consumption ◽  
Supply Systems ◽  
Additional Losses

Peculiarities of estimation of total energy losses in electric networks and estimation of nature of electricity consumption in local power supply systems (LES) are given. The structure of additional electricity losses in LES in the presence of higher harmonics of current and voltage is carried out, the generalized schedule of instantaneous functions of current i(t), voltage u(t), and power p(t) on components. The offered indicators of an estimation of the performance of criterion of a minimum of losses of the electric power in LES allow to estimate levels of distortion of power processes at consideration both exchange processes, and at the analysis of additional losses of the electric power. The accuracy of measuring the integrated characteristics of energy exchange depending on the available levels of distortion of voltage and current signals is considered. It is shown that in order to take into account the influence of higher harmonics on the total power consumption, it is necessary to determine the change of Frize QFpower as an indicator of additional electricity losses in the presence of non-sinusoidal currents and voltages in at different ratios between the value of current and voltage of the first and higher harmonics. The evaluation of the efficiency of power consumption regulation using the Frize QF power at an arbitrary time interval, as well as the corresponding current distribution into active and reactive components are considered. The peculiarities of increasing the efficiency of power consumption regulation in LES at the cyclic change of generator parameters and load are analysed.

scholarly journals ANALYSIS AND DESIGN OF A NEW STRUCTURE FOR 10-BIT 350MS/S PIPELINE ANALOG TO DIGITAL CONVERTER

2019 ◽  
Vol 8 (3) ◽  
Author(s):  
Arash Rezapour ◽  
Mohammad Bagher Tavakoli ◽  
Farbod Setoudeh
Keyword(s):  
Power Supply ◽  
Data Transfer ◽  
Open Loop ◽  
Total Power ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
Analysis And Design ◽  
Second Stage ◽  
Total Power Consumption

A 10-bit pipelined Analog to Digital converter is proposed in this paper with using 0.18 µm TSMC technology. In this paper, a new structure is proposed to increase the speed of the pipeline analog to digital convertor. So at the first stage is not used the amplifier and instead the buffer is used for data transfer to the second stage. The speed of this converter is 350MS/s. An amplifier circuit with accurate gain of 6 and a very accurate unit gain buffer circuit that are open loop with a new structure were. used. In this Converter, the first 3 bits are extracted simultaneously with sampling. The proposed analog-to-digital converter was designed with the total power consumption 75mW using power supply of 1.8v.

scholarly journals Modeling Urban Solar Energy with High Spatiotemporal Resolution

2021 ◽  
Author(s):  
Annie Chow
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Electricity Consumption ◽  
Software Tool ◽  
Solar Pv ◽  
Spatiotemporal Resolution ◽  
High Spatiotemporal Resolution ◽  
Case Study Area

Alternative sources of energy are being sought after in the world today, as the availability of fossil fuels and other non-renewable resources are declining. Solar energy offers a promising solution to this search as it is a less polluting renewable energy resource and can be easily converted into electricity through the usage of photovoltaic systems. This thesis focuses on the modeling of urban solar energy with high spatiotemporal resolution. A methodology was developed to estimate hourly solar PV electricity generation potential on rooftops in an urban environment using a 3-D model. A case study area of Ryerson University, Toronto was chosen and the incident solar radiation upon each building rooftop was calculated using a software tool called Ecotect Analysis 2011. Secondly, orthophotos of the case study area were digitized using Geographic Information Systems in order to eliminate undesirable rooftop objects within the model. Lastly, a software tool called HOMER was used to generate hourly solar PV electricity estimates using the values generated by the other two software tools as input parameters. It was found that hourly solar PV output followed the pattern of a binomial curve and that peak solar generation times coincided with summer peak electricity consumption hours in Ontario.

scholarly journals Chinas Growth in Residential Solar Roof Tops-A Booster for India

2019 ◽  
pp. 19-29
Author(s):  
Kausar Suraiya Quraishi ◽  
Dr. Salmaahmed ◽  
Dr. K. Maran
Keyword(s):  
Solar Energy ◽  
Slow Growth ◽  
Electricity Consumption ◽  
Developed Countries ◽  
Energy Development ◽  
Government Policies ◽  
Solar Pv ◽  
Fast Growing ◽  
Pv Systems ◽  
Jawaharlal Nehru

China is the world’s largest producer of photovoltaic -PV power with total installed solar capacity surpassing the early leaders in solar energy developed countries viz;USA, Germany, Japan,Italy,France, and UK.The electricity consumption of China exceeds that of any other nation and China is also the top-most solar producer with fast- growing PV systems. This paper focuses on Residential Solar PV and the progress made by China-its evolution of solar policies,trends, challenges overcome, progress made and the future of sustainable solar energy development envisaged by China.A comparison of the trajectory of growth in Residential Solar PVs in India is made to analyze the concrete government policies in this segment and the consistency and growth of RSTPV in India. The challenges faced by India and the reasons for slow growth in this sector are explored.The time is now ripe for India to focus on the RSTPV segment while implementing the Jawaharlal Nehru National Solar Mission(JNNSM) and learning lessons from China’s experiences to become a global PV leader in harnessing solar energy.

scholarly journals An Alternative Power Supply System During Peak Loads Using Solar Cells

2018 ◽  
Vol 9 (3) ◽  
pp. 1338
Author(s):  
Zulfikar Zulfikar ◽  
Zulhelmi Zulhelmi ◽  
Agus Mulyadi
Keyword(s):  
Power Plant ◽  
Solar Energy ◽  
Power Supply ◽  
Energy Requirement ◽  
Peak Load ◽  
Electricity Consumption ◽  
Maximum Energy ◽  
Maximum Power ◽  
Current Limit ◽  
Battery Energy

Utilization of renewable energy becomes a necessity in the future due to the fossil energy supply continues to decline. In Indonesia, the use of electricity from renewable sources is minimal. The utilization of solar energy in Indonesia is still limited to remote areas or islands. The main problem of electricity in Indonesia, especially in the city of Banda Aceh, is the frequent occurrence of power outages from the state power plant (PLN), especially during peak load time (WBP). Outside of that time, electricity supply exceeds demand. This study aims to utilize solar energy to reduce the electricity consumption of PLN during WBP. The system is designed to divert the power supply from PLN to the solar power plant (PLTS). The results of a survey of 10 A (current limit) customers are used as a reference to calculate PLTS capacity. During WBP, PLTS supplies to the load, beyond that time, PLN will supply the load. The system is designed to store maximum energy beyond the WBP period into the battery, the source of energy is mainly from the PLTS and alternatively from the PLN when the PLTS can not supply the maximum power. Based on battery energy, the system diverts the load supply from PLN when the battery energy is below the recharge limit. In the case of 10 A customers, with the energy requirement during WBP of 4.3 kWh, it requires 12 solar panels (160 Watt maximum power) arranged in parallel. Thus, the system needs three batteries with 150 Ah capacity also assembled in parallel. The implementation results prove that the PLTS can store solar energy to the battery properly, the system also successfully divert the PLTS source to the load at the time of WBP and transfer back to the PLN source when the battery energy is less than the recharge limit.

scholarly journals Modeling Urban Solar Energy with High Spatiotemporal Resolution

2021 ◽  
Author(s):  
Annie Chow
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Electricity Consumption ◽  
Software Tool ◽  
Solar Pv ◽  
Spatiotemporal Resolution ◽  
High Spatiotemporal Resolution ◽  
Case Study Area

Alternative sources of energy are being sought after in the world today, as the availability of fossil fuels and other non-renewable resources are declining. Solar energy offers a promising solution to this search as it is a less polluting renewable energy resource and can be easily converted into electricity through the usage of photovoltaic systems. This thesis focuses on the modeling of urban solar energy with high spatiotemporal resolution. A methodology was developed to estimate hourly solar PV electricity generation potential on rooftops in an urban environment using a 3-D model. A case study area of Ryerson University, Toronto was chosen and the incident solar radiation upon each building rooftop was calculated using a software tool called Ecotect Analysis 2011. Secondly, orthophotos of the case study area were digitized using Geographic Information Systems in order to eliminate undesirable rooftop objects within the model. Lastly, a software tool called HOMER was used to generate hourly solar PV electricity estimates using the values generated by the other two software tools as input parameters. It was found that hourly solar PV output followed the pattern of a binomial curve and that peak solar generation times coincided with summer peak electricity consumption hours in Ontario.

scholarly journals Cost-Saving Opportunities for Taylor’s University Daily Energy Consumption

2021 ◽  
Vol 335 ◽  
pp. 02001
Author(s):  
Shun Seng Chan ◽  
Chockalingam Aravind Vaithilingam ◽  
Gowthamraj Rajendran
Keyword(s):  
Solar Energy ◽  
Cost Saving ◽  
Electricity Consumption ◽  
Weather Conditions ◽  
Solar Pv ◽  
Solar Panels ◽  
Pv System ◽  
Point Tracking ◽  
Daily Energy ◽  
Power Point

Solar energy is a renewable energy abundant throughout the year in a tropical weather country like Malaysia. This paper investigates the viability of using solar PV systems as a cost-saving measure to supply electricity for Taylor’s University (TU) daily energy usage. Experimental values were compared with theoretical values and analyzed in this paper. In this experiment, four photovoltaic (PV) panels connected in parallel were linked to a maximum power point tracking (MPPT) charge controller acting as a voltage regulator. A lead-acid battery was also coupled to the controller that acts as an energy storage to store the harvested solar energy from PV panels and discharge it in electricity. Temperature sensors connected to an Arduino UNO were placed at different locations on the solar panels to monitor for irregularities in the temperature of the panels. The amount of electricity produced was calculated using the data obtained. The results showed that using a larger PV system will generate much more electricity and create a high return on investment (ROI) if the solar panels absorbed sunlight under good weather conditions, thus bringing forward a potential solution to reduce TU’s electricity consumption.

scholarly journals Development of a General Hybridized Optimization Model for Biogas and Solar PV Renewable Energy System Designs

2018 ◽  
Vol 3 (5) ◽  
pp. 82
Author(s):  
Ganiyu Adedayo Ajenikoko ◽  
T. O. Araoye ◽  
O. O. Aguda ◽  
S. F. Owolabi ◽  
A. O. Olushola
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Hybrid System ◽  
Optimization Model ◽  
Energy System ◽  
Total Power ◽  
Solar Pv ◽  
Renewable Energy System ◽  
Biogas Energy ◽  
Electrical Generation

Hybrid biogas/solar renewable energy system is an electricity production system made up of combination of biogas and solar energy. This hybrid is considered to be best module because it is abundant and environmentally friendly due to the limited reserves of fossil fuels and global environmental concerns for the production of electrical power generation and utilization. This paper develops a general hybridized optimization model for biogas/solar system for electrical generation of Ade-Oyo in Ibadan, Oyo State. In this paper, a pig dug was used to prepare the digester materials for biogas energy while a Shockley diode principle was used for PV power model. Simulation was carried out using MATLAB software and the total power for the hybrid system is formulated. The result revealed that the total power generated by biogas/solar hybrid system is the addition of the power generated by the biogas energy and solar PV panel and is given as: . The result shows that that there is a positive relationship between the electrical energy/power generated with biogas/solar energy. This paper will be helpful in demonstrating the viability of biogas/solar energy for rural communities and remote areas

scholarly journals Reconfigurable Charge Pump Circuit with Variable Pumping Frequency Scheme for Harvesting Solar Energy under Various Sunlight Intensities

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
Jeong Heon Kim ◽  
Sang Don Byeon ◽  
Hyun-Sun Mo ◽  
Kyeong-Sik Min
Keyword(s):  
Solar Energy ◽  
Power Consumption ◽  
Charge Pump ◽  
Maximum Amount ◽  
Maximum Power ◽  
Total Power ◽  
Output Current ◽  
Total Power Consumption ◽  
Layout Area ◽  
Charge Pump Circuit

We propose variable pumping frequency (VPF) scheme which is merged with the previous reconfigurable charge pump (RCP) circuit that can change its architecture according to a given sunlight condition. Here, merging the VPF scheme with the architecture reconfiguration can improve percentage output currents better by 21.4% and 22.4% than RCP circuit with the fixed pumping frequencies of 7 MHz and 15 MHz, respectively. Comparing the VPF scheme with real maximum power points (MPP), the VPF can deliver 91.9% of the maximum amount of output current to the load on average. In terms of the power and area overheads, the VPF scheme proposed in this paper consumes the power by 0.4% of the total power consumption and occupies the layout area by 1.61% of the total layout area.

Internet of Things Driven Framework for Smart Solar Energy System

2019 ◽  
Vol 142 (1) ◽  
Author(s):  
Rashmi Chawla ◽  
Poonam Singhal ◽  
Amit Kumar Garg
Keyword(s):  
Internet Of Things ◽  
Solar Energy ◽  
Smart Cities ◽  
Extreme Temperature ◽  
Energy System ◽  
Total Power ◽  
Energy Yield ◽  
Solar Pv ◽  
Pv System ◽  
Output Efficiency

The explicit model of the energy yield with respect to irradiance and cell temperature of a photovoltaic (PV) system can be apprehended using pvsyst software. Building on this data, this paper addresses performance challenges for JA Solar, JAP6 (DG) 60-235 solar PV module driving a load of Enphase, IQ6-60-x-240 grid inverter. The data modeling reflects correlation of 62% between panel temperature and output efficiency. Researchers in the past have claimed that extreme temperature exposure as one of the main impediment in decline of solar panel's life span and figured 25 °C as the ideal temperature for optimum yield. This research proposes the Internet of things (IoT)-based smart solar energy system (SES) for smart cities that automatically tune the low-powered cooling unit to lower panel's temperature to outmatch energy yield and augment solar panels life. The analog design of the cooling mechanism is set up for temperature range from −10 °C to 85 °C using hybrid op-amp proportional–integral–derivative (PID) controller and heat sink/fan with surface mount temperature sensor to maintain module temperature. The experiment analysis showed improvement of 1.7% to 2.99% in output efficiency after considering 1.8 W total power intake of the cooling circuit relative to the pvsyst v6.74 results. To access temperature data of solar panel and output current along with in-built system's current consumption, IoT accreditation is done using node MCU and Wi-Fi module.

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