scholarly journals Software Design Tool for Sizing PV Stand-Alone System and Hybrid PV-Diesel System with Iraq Climate

2019 ◽  
Vol 22 (3) ◽  
pp. 194-201
Author(s):  
Saja Majeed Hashim ◽  
Osamah Fadhil Abdulateef ◽  
Falah Ibrahim Alattar

This paper displays the improvement of Graphical User Interface programming for sizing principle segment in Stand-Alone PV system and PV- Diesel hybrid power system based on Iraq conditions. The solar system software is a tool depends on the input data by the user to give correct results on the basis of what has been introduced. Therefore, this software tool Includes products (PV modules, charge controller, inverter, battery and diesel generator) which can be obtained from the market with their detail. This software presents a guideline for photovoltaic system integrator to match the load requirement to design the effective size of components and system configuration, in hybrid PV–Diesel system. The ratio of photovoltaic solar energy to diesel generators is introduced by considering the contribution of hybrid system energy.

Author(s):  
Ashish Grover ◽  
Anita Khosla ◽  
Dheeraj Joshi

<p>This   paper deeply explains the analysis through simulation and sizing of grid connected photovoltaic plant of 20MW for the site Devdurga, Karnataka India with use of PV syst software tool. Primarily, the trajectories the behavior of grid tied photovoltaic system at a particular location. It gives results for the geographical position taken by maps for avoiding the oversizing or under sizing of the systems which projects the installation with very much realistic conditions. The projected area is of about 110 acres would generate 44854 MWh/year for a 20MW PV system, with a performance ratio of 76.28%.Loss fraction taken for simulation and sizing is 2%.The paper also includes the study and behavior of the system   with tilt and orientation of the PV Panel which gives better simulation results at similar latitudes for any feasible sizing.</p>


2021 ◽  
Vol 5 (2) ◽  
pp. 111-124
Author(s):  
F. E. Tahiri ◽  
K. Chikh ◽  
M. Khafallah

This paper proposes optimal control strategies of a standalone Hybrid Power System (HPS) to supply sustainable and optimal energy to an isolated site with improved quality of electrical energy. A topology of Isolated Hybrid Power System (IHPS) is proposed, consists of: a Photovoltaic System (PVS), a Wind Energy Conversion System (WECS), electronic power devices controlled to maximize energy production from renewable sources and to maintain the constant DC-link voltage, a Battery Energy Storage System (BESS), Diesel Generator (DG), and a Pulse Width Modulation (PWM) Voltage Source Inverter (VSI) located at the load-side end. In addition, a novel control strategy has been proposed, in this work, to maximize the power from the PVS. This presented strategy, based on the combination between Perturb and Observe (P&O) algorithm and the Fuzzy PI Controller (FPIC), presents a good performance, especially in the dynamic state compared to the classical algorithm P&O. A supervisory control algorithm has been elaborated to manage the energy flows between the devices of the hybrid system to make the decision of the optimal operating mode in order to ensure a continuous supply of the load with minimum usage of batteries and DG. The simulation results developed in the Matlab/Simulink environment are applied to show the efficiency and performance of the proposed control strategies in terms of power optimization and energy management. Doi: 10.28991/esj-2021-01262 Full Text: PDF


2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Tamer Khatib ◽  
Azah Mohamed ◽  
K. Sopian

This paper presents a MATLAB based user friendly software tool called as PV.MY for optimal sizing of photovoltaic (PV) systems. The software has the capabilities of predicting the metrological variables such as solar energy, ambient temperature and wind speed using artificial neural network (ANN), optimizes the PV module/ array tilt angle, optimizes the inverter size and calculate optimal capacities of PV array, battery, wind turbine and diesel generator in hybrid PV systems. The ANN based model for metrological prediction uses four meteorological variables, namely, sun shine ratio, day number and location coordinates. As for PV system sizing, iterative methods are used for determining the optimal sizing of three types of PV systems, which are standalone PV system, hybrid PV/wind system and hybrid PV/diesel generator system. The loss of load probability (LLP) technique is used for optimization in which the energy sources capacities are the variables to be optimized considering very low LLP. As for determining the optimal PV panels tilt angle and inverter size, the Liu and Jordan model for solar energy incident on a tilt surface is used in optimizing the monthly tilt angle, while a model for inverter efficiency curve is used in the optimization of inverter size.


2014 ◽  
Vol 2 ◽  
pp. 15-23
Author(s):  
Puskar Suwal

The techno-economic viability of a hybrid system of solar photovoltaic and diesel generator with the most likely stand-alone systems, i.e. diesel-powered system and solar photovoltaic system, has been analyzed for energy demand through optimization and sensitivity analysis using HOMER. The concept of hybridizing is that the base load is to be covered by largest and firmly available renewable energy source(s), and other intermittent source(s) should augment the base load to cover the peak load. The model has been designed to provide an optimal system configuration based on hour-by-hour data for energy availability and demands. Based on the simulation results, the hybrid system is found to be economically feasible enough to replace the stand-alone system currently practicing to fulfill the energy demand during power cut-off in Nepal.


Author(s):  
Ahmad Fateh Mohamad Nor ◽  
Suriana Salimin ◽  
Mohd Noor Abdullah ◽  
Muhammad Nafis Ismail

<span>Artificial Neural Network (ANN) techniques are becoming useful in the current era due to the vast development of the current computer technologies. ANN has been used in various fields especially in the field of science and technology. One of the advantage that makes ANN so interesting is the ANN’s ability to learn the input and output relationship even though the relationship is non-linear. In addition, ANN is also useful for modelling, optimization, prediction, forecasting, and controlling systems. The main objective of this paper is to present a review of the ANN techniques for sizing a stand-alone photovoltaic (PV) system. The review in this paper shows the potential of ANN as a design tool for a stand-alone PV. In addition, ANN is very useful to improve the sizing process of the stand-alone PV system. The sizing process is of paramount importance to a stand-alone PV system in order to make sure the system can generate ample electrical energy to supply the load demand.</span>


Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4735 ◽  
Author(s):  
Haytham El-houari ◽  
Amine Allouhi ◽  
Shafiqur Rehman ◽  
Mahmut Sami Buker ◽  
Tarik Kousksou ◽  
...  

Access to clean and affordable energy in rural African regions can contribute greatly to social development. Hence, this article proposes the design, simulation, and optimization of a stand-alone photovoltaic system (SAPV) to provide non-polluting electrical energy based on a renewable source for a rural house located in Tazouta, Morocco. Real monthly electrical demands and hourly climatic conditions were utilized. An initial design process indicated that, with a 1080 Wp total capacity of PV modules and 670 Ah of battery storage, the proposed SAPV system was able to meet a considerable part of the dwelling load with an average solar fraction of about 79.1%. The rest of the energy demand was ensured by a diesel generator (DG). Also, a life cycle analysis of the PV system revealed that the life cycle cost is 10,195.56 USD and the unit electricity cost is 0.57 USD/kWh for an initial investment of 4858.68 USD. Thereafter, an optimum design based on Homer Pro software was carried out indicating that lower PV capacity can decrease the unit energy cost to 0.356 USD/kWh while reducing the solar fraction to 54.9%.


2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Lawrence O. Aghenta ◽  
M. Tariq Iqbal

This paper presents the design and dynamic modelling of a hybrid power system for a house in Nigeria. Thermal modelling of the house under consideration is carried out using BEopt software to accurately study the heat loss through the walls, windows, doors, and roof of the house. The analysis of this thermal model is used to determine hourly load data. Design of an optimum hybrid power system for the house is done with HOMER Pro software. The hybrid power system is made up of a diesel generator and a stand-alone PV system. The proposed PV system consists of PV arrays, DC–DC boost converter, MPPT controller, single-phase full-bridge inverter, inverter voltage mode controller (PI controller), and single-phase step-up transformer. Dynamic simulation of the proposed PV system component of the hybrid power system is carried out in MATLAB/Simulink environment to study the power quality, harmonics, load impact, voltage transients, etc. of the system, and the simulation results are presented in the paper.


Author(s):  
Ramesh Ranabhat ◽  
Sundar Bahadur Khadka

<p>Energy is one of the important necessities of the society and basic for sustainable development. It is derived from the different fuel resources which are grouped into different categories based on the fuel characteristics, monetization, resources availability, dependency etc. Total annual energy consumption of our country Nepal is 401 Million GJ (WECS 2010). Till date, around 12% population has access to electricity through renewable energy sources. Around 23 MW of electricity has been generated from micro hydro schemes, 12 MW from solar PV system, less than 20 KW from wind energy etc. In this context most of the rural area is not connected with the national Grid line and the rural area people are using the solar home system (SHS) for the lighting purpose where people can have lights for nearly 4 hours. However in Urban area people have alternative power backup. People in the urban area were used Inverter based power backup intensively and in the office Diesel Generator was used in most of the places during load-shedding period. Government of Nepal with the support from the Donor Agencies is providing subsidies to the SHS for rural household as well as the ISPS for the institutional purpose. Various companies install ISPS in the rural area annually but the most of the system is nonfunctional after a couple of years of installation.  This study is focused to perform a comprehensive study on determining the size of the various components used in institutional solar photo-voltaic system (ISPS), point out the system design error in the previously installed system and proposed a sustainable approach of designing ISPS.</p><p><strong>Journal of Advanced College of Engineering and Management</strong>, Vol. 3, 2017, Page: 93-102</p>


2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Daniel O Johnson ◽  
Kabiru A Hassan ◽  
Sunday O Okusanya ◽  
James O Oladapo

Regular availability of electricity is fundamentally important for everyday running and productivity of any organisation. In any modern society, stable and reliable electric power is a basic need, without which living condition becomes substandard and smooth business operations become difficult. Unreliability of power services in Nigeria is taking its toll on administrative, academic and research activities at Federal Polytechnic, Ede, just like other institutions in the country. Diesel generator on which the institution depends for alternative power source during outage is not sustainable as outage is too frequent and the duration is usually long, at times for days. This results in a very high running cost if normal activities in the institution are to go unimpeded. This work is on the design of 172.84kWP Solar Photovoltaic (PV) System aimed at permanently addressing the electric power challenges at the Administrative Blocks of the Federal Polytechnic, Ede. The proposed project’ design was simulated and the results show that its real life performance is highly promising. The least energy yield of the PV system occurs in June with 549.93kWh/day as against the maximum demand of 457.30kWh/day. The system performance is much higher in the months of September to March as solar irradiance is higher in these months. The PV plant has active service life of over 25years without significant change in its efficiency. The benefits of the proposed project are manifold. The project if implemented will solve the electric power problem of the institution at the Administrative’ Building by providing stable, adequate and reliable 24-hour a day electricity. The estimated cost of the proposed project is N45, 000,000  which is much cheaper than diesel generator and interestingly, is appreciably less than the cost of unreliable power supply from the grid. Keywords: Energy yield, off-grid, photovoltaic system, solar electricity, solar photovoltaic


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