scholarly journals A Novel Optimization Algorithm for Solar Panels Selection towards a Self-Powered EV Parking Lot and Its Impact on the Distribution System

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4515
Author(s):  
Claude Ziad El-Bayeh ◽  
Mohamed Zellagui ◽  
Navid Shirzadi ◽  
Ursula Eicker
Keyword(s):  
Renewable Energy ◽  
Optimization Algorithm ◽  
Distribution System ◽  
Energy System ◽  
Solar Panels ◽  
Pv System ◽  
Self Sufficiency ◽  
Parking Lot ◽  
Voltage Deviation ◽  
Self Powered

This paper proposes an original multi-criteria decision-making optimization algorithm to select the best solar panels in an existing market and optimally size the photovoltaic (PV) system for an electric vehicle parking lot (EVPL). Our proposed algorithm is called rank-weigh-rank (RWR), and it is compared to the well-known technique for order of preference by similarity to ideal solution (TOPSIS) optimization algorithm under the same conditions for validation purposes. Results show that the speed of our proposed algorithm (RWR) in finding the best solution increases exponentially compared to TOPSIS when the numbers of alternatives and criteria increase. Moreover, 77% is the probability of obtaining results with more than 80% accuracy compared to TOPSIS, which validates the efficiency of our algorithm. In addition, we were able to design an EVPL with a power self-sufficiency ratio of 60.8%, the energy self-sufficiency ratio of 74.7%, and a payback period of 10.58 years. Moreover, the renewable energy-based EVPL was able to reduce the power losses on the network by 95.7% compared to an EVPL without a renewable energy system and improve the voltage deviation.

scholarly journals A day-ahead hybrid optimization algorithm for finding the dispatch schedule of VPP in a distribution system

2020 ◽  
Author(s):  
Seyed Iman Taheri ◽  
Lucas Lima Rodrigues ◽  
Mauricio B. C. Salles ◽  
Alfeu Joãozinho Sguarezi Filho
Keyword(s):  
Open Source Software ◽  
Optimization Algorithm ◽  
Distribution System ◽  
Hybrid Optimization ◽  
Genetic Optimization ◽  
Hybrid Optimization Algorithm ◽  
System Operator ◽  
Voltage Deviation ◽  
Ieee Standard ◽  
Load Shape

Distributed renewable generations such as photovoltaic units are electricity generators for installing close to the loads on the distribution system. In this paper, the dispatch function of a non-centralized Virtual Power Plant (VPP) with having a photovoltaic unit in each bus is considered to optimize. This dispatch function is assigned based on the predicted load shape of the next day. A new day-ahead hybrid optimization algorithm is presented to optimize the dispatch function. The proposed algorithm implements a new hybrid combination of Particle Swarm Optimization (PSO) and Genetic Optimization (GA) algorithms simultaneously to benefit both algorithms’ advantages. The objective function is the optimization of the voltage deviation of the VPP. The suggested algorithm is executed on a 13-bus-radial IEEE standard VPP system using MATLAB software coupled with open-source software called Open-DSS. The results show the importance of the proposed algorithm to optimize the voltage deviation of the VPP. The superiority of the proposed algorithm is related to the accuracy and calculation velocity in comparison with the other tested evolutionary algorithms. The Distribution System Operator could map and move towards its full benefits of the increasing integration of DGs with a strategic placement that could keen prosumers on integrating these actions.

The Siren Song of Renewable Energy

2014 ◽  
Author(s):  
Michael H. Fox
Keyword(s):  
Renewable Energy ◽  
Nuclear Power ◽  
Fossil Fuels ◽  
Rocky Mountain ◽  
Electricity Production ◽  
The Sun ◽  
Solar Panels ◽  
Water Heater ◽  
Pv System ◽  
Energy Needs

Renewable energy from the sun—which includes solar, wind, and water energy— can meet all of our energy needs and will allow us to eliminate our dependence on fossil fuels for electricity production. At least, that is the “Siren song” that seduces many people. Amory Lovins, the head of the Rocky Mountain Institute, has been one of the strongest proponents of getting all of our energy from renewable sources (what he calls “soft energy paths”) (1) and one of the most vociferous opponents of nuclear power. A recent article in Scientific American proposes that the entire world’s needs for power can be supplied by wind, solar, and water (2). Is this truly the nirvana of unlimited and pollution-free energy? Can we have our cake and eat it, too? Let’s take a critical look at the issues surrounding solar and wind power. Let me be clear that I am a proponent of solar energy. I built a mountain cabin a few years ago that is entirely off the grid. All of the electricity comes from solar photovoltaic (PV) panels with battery storage. The 24 volt DC is converted to AC with an inverter and is fed into a conventional electrical panel. It provides enough energy to power the lights, run a 240 volt, three-quarter horsepower water pump 320 feet deep in the well, and electrical appliances such as a coffee pot, toaster, and vacuum cleaner. But I am not implying that all of my energy needs come from solar. The big energy hogs—kitchen range, hot water heater, and a stove in the bedroom—are all powered with propane. Solar is not adequate to power these appliances. In 2010 I also had a 2.5 kW solar PV system installed on my house that ties into the utility grid. When the sun is shining, I use the electricity from the solar panels, and if I use less than I generate, it goes out on the grid to other users. If it does not produce enough for my needs, then I buy electricity from the grid.

scholarly journals Grey SWARA-FUCOM Weighting Method for Contractor Selection MCDM Problem: A Case Study of Floating Solar Panel Energy System Installation

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2481 ◽  
Author(s):  
Cao ◽  
Esangbedo ◽  
Bai ◽  
Esangbedo
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Cost Effective ◽  
Energy System ◽  
Solar Panel ◽  
Solar Panels ◽  
Weighting Method ◽  
Weight Analysis ◽  
Consistent Method ◽  
Grey Relational

Selection of the most appropriate contractor for the installation of solar panels is essential to maximizing the benefit of this renewable, sustainable energy source. Solar energy is one of the 100% renewable energy sources, but implementation may not be very simple and cost-effective. A key phase in the implementation of renewable energy is the evaluation of contractors for the installation of solar panels, which is addressed as a multi-criteria decision-making (MCDM) problem. A new hybrid method is proposed that combines the stepwise weight analysis ratio assessment (SWARA) and full consistent method (FUCOM) weights that are represented as grey numbers used with traditional grey relational analysis (GRA) and evaluation based on distance from average solution (EDAS) methods. The ranking of contractors by both methods is the same, which confirmed the results presented in this research. The use of the grey SWARA-FUCOM weighting method combined with the GRA and EDAS methods increased the decision-makers’ (DMs) confidence in awarding the installation of the solar panel energy system to the top-ranked contractor.

scholarly journals Optimal Sizing and Operation of Electric and Thermal Storage in a Net Zero Multi Energy System

Energies ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 3389 ◽  
Author(s):  
Sergio Bruno ◽  
Maria Dicorato ◽  
Massimo La Scala ◽  
Roberto Sbrizzai ◽  
Pio Alessandro Lombardi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Control Problem ◽  
Predictive Control ◽  
Renewable Energy Sources ◽  
Environmental Parameters ◽  
Thermal Storage ◽  
Energy System ◽  
Optimal Sizing ◽  
Self Sufficiency ◽  
Net Zero

In this this paper, the optimal sizing of electric and thermal storage is applied to the novel definition of a net zero multi energy system (NZEMS). A NZMES is based on producing electricity exclusively from renewable energy sources (RES) and converting it into other energy forms to satisfy multiple energy needs of a community. Due to the intermittent nature of RES, storage resources are needed to increase the self-sufficiency of the system. Possible storage sizing choices are examined considering, on an annual basis, the solution of a predictive control problem aimed at optimizing daily operation. For each day of the year, a predictive control problem is formulated and solved, aimed at minimizing operating costs. Electric, thermal, and (electric) transportation daily curves and expected RES production are assessed by means of a model that includes environmental parameters. Test results, based on the energy model of a small rural village, show expected technical-economic performance of different planning solutions, highlighting how the renewable energy mix influences the choice of both thermal and electric storage, and how self-sufficiency can affect the overall cost of energy.

scholarly journals An Improved Dispatch Strategy of a Grid-Connected Hybrid Energy System with High Penetration Level of Renewable Energy

2014 ◽  
Vol 2014 ◽  
pp. 1-18
Author(s):  
Yan Zhang ◽  
Jie Meng ◽  
Bo Guo ◽  
Tao Zhang
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Fast Response ◽  
Time Shift ◽  
Frequency Regulation ◽  
Hybrid Energy ◽  
High Penetration ◽  
Battery Energy

As more and more renewable energy sources (RES) integrated into the conventional distribution system, how to make the current electric grid more reliable and efficient is becoming an important topic the world must face. In order to achieve these goals, grid-connected hybrid energy systems (HES) which contain battery energy storage systems (BESS) and many other advanced technologies have been developed and applied. Many benefits of BESS, such as high density of energy and power, have fast response in energy time-shift, frequency regulation, and so on. This paper focuses on the fluctuation alleviation and power quality improvement of grid-connected HES with high penetration level of RES. A multistage dispatch strategy of BESS for HES is proposed in this paper to mitigate the randomness and intermittence of the power flowed in HES because of high penetration level of RES integration. Four other conventional strategies are also discussed for evaluating the performance of the method proposed in this paper. Detailed cases and corresponding discussions are implemented, and the results show that the method proposed in this paper is more effective and robust than the other conventional strategies.

scholarly journals A New Energy Management Technique for PV/Wind/Grid Renewable Energy System

2015 ◽  
Vol 2015 ◽  
pp. 1-19 ◽  
Author(s):  
Onur Ozdal Mengi ◽  
Ismail Hakki Altas
Keyword(s):  
Renewable Energy ◽  
Energy Management ◽  
Management System ◽  
Energy System ◽  
Management Technique ◽  
Solar Panels ◽  
Power Requirement ◽  
Power Sources ◽  
Power Bus ◽  
New Energy

An intelligent energy management system (IEMS) for maintaining the energy sustainability in renewable energy systems (RES) is introduced here. It consists of wind and photovoltaic (PV) solar panels are established and used to test the proposed IEMS. Since the wind and solar sources are not reliable in terms of sustainability and power quality, a management system is required for supplying the load power demand. The power generated by RES is collected on a common DC bus as a renewable green power pool to be used for supplying power to loads. The renewable DC power bus is operated in a way that there is always a base power available for permanent loads. Then the additional power requirement is supplied from either wind or PV or both depending upon the availability of these power sources. The decision about operating these systems is given by an IEMS with fuzzy logic decision maker proposed in this study. Using the generated and required power information from the wind/PV and load sides, the fuzzy reasoning based IEMS determines the amount of power to be supplied from each or both sources. Besides, the IEMS tracks the maximum power operating point of the wind energy system.

scholarly journals Hosting Capacity Assessment in Distribution Networks Considering Wind–Photovoltaic–Load Temporal Characteristics

2021 ◽  
Vol 9 ◽  
Author(s):  
Nianchun Du ◽  
Fei Tang ◽  
Qingfen Liao ◽  
Chenxu Wang ◽  
Xin Gao ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Large Scale ◽  
Energy System ◽  
Distribution Networks ◽  
Assessment Method ◽  
Low Carbon ◽  
Temporal Characteristics ◽  
Stochastic Framework ◽  
Aggregation Technique

Under the background of clean and low-carbon energy transformation, renewable distributed generation is connected to the distribution system on a large scale. This study proposes a probabilistic assessment method of hosting capacity considering wind–photovoltaic–load temporal characteristics in distribution networks. First, based on time series of wind, photovoltaic, and load demands, a discretization–aggregation technique is introduced to generate and filter extreme combinations. The method can effectively reduce the scenarios that need to be evaluated. Then a holomorphic embedding method considering generation and load scaling directions is proposed. The holomorphic function of voltage about an embedding variable is established, and it is analytically expanded in the form of series. The hosting capacity restrained by the voltage violation problem is calculated quickly and accurately. Finally, the proposed stochastic framework is implemented to evaluate hosting capacity involving renewable energy types, penetration levels, and locations. The hosting capacity of single energy and hybrid wind–solar renewable energy systems is evaluated from the perspective of probability analysis. The results verify the outstanding performance of the hybrid wind–solar energy system in improving the hosting capacity.

scholarly journals Maintenance Management Regime for Off-Grid Solar PV Renewable Energy System in Nigeria

2020 ◽  
Vol 5 (11) ◽  
pp. 1376-1382
Author(s):  
Zacchaeus A. Adetona ◽  
Joel Ogunyemi ◽  
Irmiya Bitrus
Keyword(s):  
Renewable Energy ◽  
Energy System ◽  
Green Energy ◽  
Solar Pv ◽  
Solar Panels ◽  
Circuit Breakers ◽  
Pv Systems ◽  
Management Regime ◽  
Supply Problem ◽  
Maintenance Personnel

The perennial inadequate power supply problem in Nigeria, the worldwide call for green energy and the unavailability of grid electrical supply or difficulty in accessing it have created a need for the adoption of renewable energy such as solar PV systems. PV systems have a lifespan ranging from 10 to 25 years if well maintained but it has been observed that PV systems do not last up to their useful lifespan in Nigeria. A preliminary survey carried out showed that 71.2% of sample did not carry out any maintenance on their PV installations, 85.7% agreed that a lack of maintenance was responsible for their nonfunctional PV systems and 95% of the respondents agreed that there was a lack of maintenance on PV installations in Nigeria. A maintenance regime was developed for PV systems whereby a maintenance personnel is appointed to carry out routine or breakdown maintenance on solar panels, charge controller, battery, inverter, and cabling. The regime starts with turning off power coming from the solar panels. The maintenance of the solar panels follows; next is maintenance on all cable wiring and terminations. After all cable terminations have been checked, the battery maintenance follows. The charge controller is then checked for maintenance and subsequently, power from solar panels can be switched on to restore charging. Two protective installations were recommended in the maintenance regime namely the installation of earthing and DC circuit breakers to protect the solar system installation.

scholarly journals CHANGING ENERGY GEOPOLITICS: WHAT IS THE ROLE OF SUSTAINABILITY IN THE GLOBAL ENERGY GEOPOLITICS?

2018 ◽  
Vol 6 (12) ◽  
Author(s):  
Maria Cândida Arrais de Miranda Mousinho ◽  
Ednildo Andrade Torres ◽  
Silvio Alexandre Beisl Vieira de Melo ◽  
Nanda Kumar
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Essential Element ◽  
Physical Space ◽  
Energy System ◽  
Energy Resources ◽  
China And India ◽  
Self Sufficiency ◽  
New Challenges

The act of dominating energy resources undoubtedly permeates the conquest of territories and their respective societies. Energy and geopolitics have always walked conjointly in the process of economic and social development in which societies have been based over the time. The multiplicity of issues that geopolitics gathered helped broaden the spectrum of analysis of geopolitical turning it more complex. This paper has the main objective to contribute for a discussion about the transition from the geopolitics based on the physical space to the geopolitics based on sustainability in which renewable energy has consolidated in the international scenario.  The final considerations highlight the quest for energy security requires more than the quest for energy self-sufficiency itself. In addition, the sustainable paradigm introduced in the geopolitics of energy new challenges as the insertion of renewable energy in a context dominated by traditional sources of energy that provokes a reflection on how the challenges related to geopolitics will be dealt with. In that way, China and India appears as a global players. The choice of cooperative dialogues appears as an essential element in the balance of the energy system.

Sign in / Sign up

Export Citation Format

Share Document