Design and Performance Improvement of Mirror Augmented Photovoltaic Systems

2016 ◽  
Author(s):  
Prathusha Bodhanker ◽  
Ann Bradish ◽  
John Kelly Kissock
Keyword(s):  
Performance Improvement ◽  
Solar Irradiation ◽  
Middle Portion ◽  
Pv System ◽  
Bottom Part ◽  
Pv Panel ◽  
Total Solar Irradiation ◽  
Photo Voltaic ◽  
The Difference ◽  
And Performance

Augmenting photo-voltaic (PV) system performance using fixed flat mirrors boosts PV power output. Previous literature reports that fixed flat mirrors create non-uniform irradiance on the PV panels, which limits the current and decreases panel efficiency. Triplex panels have a modified cell string architecture that splits the panel into three separate sections to address this problem. This paper describes an experimental setup consisting of a pyranometer to measure total solar irradiation, an air temperature sensor, a standard PV panel with and without mirrors, and a triplex panel with and without mirrors. The sensor and PV panels are connected to Daystar Multi-tracer logger to collect the instantaneous data. The experiment is simulated using TracePro® to determine the distribution of radiation reflected onto the PV panels. Both simulated and measured results indicate the bottom part of the mirror augmented panels receive the most solar irradiance followed by middle portion, followed by top portion. The results document the difference in performance between standard and Triplex panels with fixed flat mirrors and suggest configurations that maximize performance.

Grid – connected operation and performance of hybrid DG having PV and PEMFC

Circuit World ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nayana Shetty ◽  
Chakrasali R.L.
Keyword(s):  
Fuel Cell ◽  
Distributed Generation ◽  
Proton Exchange Membrane ◽  
Photovoltaic Cell ◽  
Proton Exchange ◽  
Solar Irradiation ◽  
Pv System ◽  
Content Type ◽  
Contemporary World ◽  
And Performance

Purpose “the purpose of this study/paper” or “this study/paper aims to” in the Purpose section of the Abstract. The integration of distributed generation (DG) to the utility grid is yet another approach to provide reliable and secured power. Design/methodology/approach The significant concern in this contemporary world are the day-to-day increasing power demand, lack of energy and increasing environmental pollution, which are threatening the existence of living things. Findings The research focus here is to adequacy and security in the grid-integrated hybrid distributed generation (DG) having photovoltaic (PV) and proton exchange membrane fuel cell. Originality/value PV system is a clean source of generation and suitable for many applications. Photovoltaic cell captures the energy from solar irradiation. To track the maximum power from PV, perturb and observe method is used. As it is intermittent in nature, integrating PV with fuel cell makes the hybrid source more reliable. Power electronic interfacing devices are used to integrate this hybrid DG source to microgrid. The simulation of this grid-connected hybrid DG is performed using Matlab/Simulink environment.

scholarly journals Design of a DC Microgrid System for a Remote Community in Nigeria

2021 ◽  
Vol 5 (6) ◽  
pp. 29-35
Author(s):  
Japhet Ozogbuda ◽  
M. Tariq Iqbal
Keyword(s):  
Cost Effective ◽  
Solar Irradiation ◽  
Detailed Result ◽  
Health Issues ◽  
Pv System ◽  
Dc Microgrid ◽  
Remote Community ◽  
Electricity Grid ◽  
Pv Panel ◽  
Edo State

This paper presents the design of a DC microgrid for a remote community in Edo State, Nigeria having a solar irradiance of 4.63 kWh/m2/day. The community is isolated and located far away from the city with no access to the electricity grid. There is a need for lighting and running of electronics, as the main source of lighting presently is kerosine, which is not efficient and leads to health issues. The community is made up of 9 residences that are not more than 100 m apart. House 1 was selected as the standard house with a load of 1 kWh/day, while the other 8 houses have a load difference of ±10% with reference to house 1. Using a 48 V DC bus, the designed PV system components comprise of a 100W solar photovoltaic (PV) panel and a 12 V 45 A·hr battery. The system was sized using Homer Pro. Optimization results presented various design for the various houses. The result obtained showed reasonable and feasible cost-effective solution in terms of the Net Present Cost in both installation and running of the hybrid system for the community. Sensitivity analysis was also carried out to test the adaptability of the system using a solar irradiation input of ±10%. Detailed result of the analysis is presented in the paper.

scholarly journals Real-Time Experimental Assessment of a New MPPT Algorithm Based on the Direct Detection of the Short-Circuit Current for a PV System

2021 ◽  
Vol 19 ◽  
pp. 598-603 ◽  
Author(s):  
C.B. Nzoundja Fapi ◽  
◽  
P. Wira ◽  
M. Kamta ◽  
Keyword(s):  
Fuzzy Logic Controller ◽  
Direct Detection ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Maximum Power ◽  
Solar Irradiation ◽  
Pv System ◽  
Maximum Power Point ◽  
Pv Panel ◽  
Power Point

To substantially increase the efficiency of photovoltaic (PV) systems, it is important that the Maximum Power Point Tracking (MPPT) system has an output close to 100%.This process is handled by MPPT algorithms such as Fractional Open-Circuit Voltage (FOCV), Perturb and Observe (P&O), Fractional Short-Circuit Current (FSCC), Incremental Conductance (INC), Fuzzy Logic Controller (FLC) and Neural Network (NN) controllers. The FSCC algorithm is simple to be implemented and uses only one current sensor. This method is based on the unique existence of the linear approximation between the Maximum Power Point (MPP) current and the short-circuit current in standard conditions. The speed of this MPPT optimization technic is fast, however this algorithm needs to short-circuit the PV panel each time in order to obtain the short circuit current. This process leads to energy losses and high oscillations. In order to improve the FSCC algorithm, we propose a method based on the direct detection of the shortcircuit current by simply reading the output current of the PV panel. This value allows directly calculating the short circuit current by incrementing or decrementing the solar irradiation. Experimental results show time response attenuation, little oscillations, power losses reduction and better MPPT accuracy of the enhanced algorithm compared to the conventional FSCC method.

scholarly journals Case Study Design of a Stand-Alone Photovoltaic Power System in Gaza-Strip and Genaralizing Aprogram Simulation

2021 ◽  
Vol 297 ◽  
pp. 01004
Author(s):  
Husam Awad ◽  
Naem Harb ◽  
Ghada abu Al goboz ◽  
Shareif Shurrab
Keyword(s):  
Gaza Strip ◽  
Storage System ◽  
Geographical Location ◽  
Solar Irradiation ◽  
Effect Of Temperature ◽  
Pv System ◽  
Pv Panel ◽  
Load Demand

This paper considered the design of a stand-alone PV system that would be adequate to power a single residence and estimate the appropriate size of the solar panel. This system converts solar energy directly into electricity using photovoltaic principle in PV panel arrays. The electricity produced can be used to power most ac and dc electrical appliances. Inverter is used to convert the dc generated by the PV panels to ac for most domestic and industrial use. For continuous availability of power during days of autonomy (low insolation or cloudy days), battery storage system and charge controller (for battery charge and discharge control) are required. inverter, charge controller, battery, components interconnection wires. The sizing processes considered the quality of solar irradiation of the geographical location, effect of temperature de-rating, efficiency of components, system voltage selection, days of autonomy and load demand (in watt-hour). A residence in Gaza town was chosen as a case study. The minimum electrical load of 7.875kWh per day, household, Finally excel program simulation was designed to satisfy calculation equations process and generalize the program.

scholarly journals The Potential Overview of PV System Installation at the Quarry Open Pit Mine PT. Bukit Asam, Tbk Tanjung Enim

2021 ◽  
pp. 41-50
Author(s):  
Ketut Junaedi ◽  
Tresna Dewi ◽  
Muhammad Syahirman Yusi
Keyword(s):  
Sea Level ◽  
Open Pit Mine ◽  
Open Pit ◽  
Pv System ◽  
Open Pit Mines ◽  
Average Efficiency ◽  
Pv Panel ◽  
The Difference ◽  
The Government ◽  
Housing Site

South Sumatra has an established state-own enterprise exploring the Quarry Open Pit Mine. This mining process leaves some abondance open field that has a high potential to install a PV system. The Government has undertaken an initial analysis of 200 hectares of ex-mining land for this purpose. This paper analyzes the potential for PV panels to be installed at PTBA Tanjung Enim Quarry Open Pit Mine. The location of the PV panel in the open pit Quarry for this analysis is at an altitude of +140 m above sea level. Meanwhile, the PTBA Tanah Putih Township housing site where the PV comparison panel is installed is located on the altitude of +100 m above sea level, and within 2.97 km from the mine. PV panels installed in Open Pit mines generate better electricity and efficiency compared to PV panels installed outside the mine (in PTBA Township Housing). The difference of Isc between PV Panel installed in Quarry Open Pit Mine and Township is 0.0075 A. The Iload measured on the Quarry Open Pit Mine PV panel is 0.5478 A higher than the Township PV panel. Meanwhile, Voc measured on Quarry Open Pit Mine PV panel is smaller than Township PV panel, approximately 0.266 V and Vload of Quarry Open Pit Mine PV panel is 0.266 V larger than Township PV panel. The produced power of Quarry Open Pit Mine PV panel is 11.02 W larger than the Township PV panel. From the total value, the average efficiency produced by Quarry Open Pit Mine PV panels is 2.31 % higher than the efficiency produced by Township PV panels. This research shows the possibility and advantage of installing a PV system on a Quarry Open Pit Mine.

scholarly journals A Comprehensive Analysis of Partial Shading Effect on Output Parameters of a Grid-connected PV System

2018 ◽  
Vol 8 (2) ◽  
pp. 749
Author(s):  
H. Rahimi Mirazizi ◽  
M. A. Shafiyi
Keyword(s):  
Harmonic Distortion ◽  
Comprehensive Analysis ◽  
Test Results ◽  
Pv System ◽  
Partial Shading ◽  
Pv Panel ◽  
System Output ◽  
Multi Level ◽  
And Performance ◽  
Set Up

One of the issues of grid-connected photovoltaic systems is the effect of the partial shading on the key parameters and performance of the system. In practice, a share of the entire PV panel may shadded because of the various reasons, inevitably. In this case, the key parameters of the system output are affected with respect to the shading extent and paradigm. In this paper, the effects of the various partial shading patterns on the ouput of the system are examined. This is performed by deriving relevant equations and appropriate modeling of the system and defining different scenarios. The analysis on the system performance is carried out on the dominant output parameters including panel voltage, panel power, and total harmonic distortion (THD) of the inverter. Also, the study considers the effect of using bypass diodes in the panels or not. Addintionally, to compare derived conclusions, the study is implementd on a practical system. The set up is made up of a 7-level multi-level inverter, a Z-source converter, and 1 kW lateral circuitry. The real world test results of the study demonstrate a negligible deviation compared to the simulation results.

scholarly journals Thermal building upgrade with off-grid PV system: a Polish case

2021 ◽  
Vol 14 (7) ◽  
Author(s):  
Sylwia Wciślik ◽  
Dagmara Kotrys-Działak
Keyword(s):  
Solar Radiation ◽  
Alternative Energy ◽  
Net Present Value ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Total Solar Radiation ◽  
Pv System ◽  
Alternative Energy Sources ◽  
High Investment ◽  
The Difference

AbstractNowadays, one of the basic requirements for thermally upgraded buildings involves limitation in CO2 emission even by over 90%. To fulfil these criteria, it is necessary to use alternative energy sources and photovoltaics constitutes a reasonable option for this. This paper addresses an analysis of the efficiency and profitability of a photovoltaic system located in the geometric center of Europe-Poland, where the intensity of solar irradiation is not very high compared to other European countries. The difference of total solar radiation density between Poland and Malta is 49.2%, from analysis based on SolarGIS base. The PV Lighthouse calculator was used for global power density and photon current examination for a Polish city and locations of the highest and the lowest solar radiation values, Malta and Finland, respectively. This case study concerns a thermally upgraded building; a gas boiler was replaced by a heat pump supported by an off-grid PV system. To achieve a reduction in CO2 emission of 90%, it is necessary to install 182 PV cells, which generates high investment costs. An investment is entirely profitable with 70% of funding with Simple Pay Back Time, SPBT~7 years although Net Present Value, NPV>0; Internal Rate of Return, IRR=10.6%.

Sign in / Sign up

Export Citation Format

Share Document