Selection of Appropriate Dispatch Strategies for Effective Planning and Operation of a Microgrid

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7217
Author(s):  
Sk. A. Shezan ◽  
Kazi Nazmul Hasan ◽  
Akhlaqur Rahman ◽  
Manoj Datta ◽  
Ujjwal Datta
Keyword(s):  
South Australia ◽  
Solar Pv ◽  
Efficient Design ◽  
Design And Optimization ◽  
Load Following ◽  
Renewable Power ◽  
Hybrid Microgrid ◽  
Cost Of Energy ◽  
Optimal Functioning ◽  
Multiple Dispatch

The power system responsiveness may be improved by determining the ideal size of each component and performing a reliability analysis. This study evaluated the design and optimization of an islanded hybrid microgrid system with multiple dispatch algorithms. As the penetration of renewable power increases in microgrids, the importance and influence of efficient design and operation of islanded hybrid microgrids grow. The Kangaroo Island in South Australia served as the study’s test microgrid. The sizing of the Kangaroo Island hybrid microgrid system, which includes solar PV, wind, a diesel engine, and battery storage, was adjusted for four dispatch schemes. In this study, the following dispatch strategies were used: (i) load following, (ii) cycle charging, (iii) generator order, and (iv) combination dispatch. The CO2 emissions, net present cost (NPC), and energy cost of the islanded microgrid were all optimized (COE). The HOMER microgrid software platform was used to build all four dispatch algorithms, and DIgSILENT PowerFactory was used to analyze the power system’s responsiveness and dependability. The findings give a framework for estimating the generation mix and required resources for an islanded microgrid’s optimal functioning under various dispatch scenarios. According to the simulation results, load following is the optimum dispatch technique for an islanded hybrid microgrid that achieves the lowest cost of energy (COE) and net present cost (NPC).

scholarly journals Optimal Sizing and Assessment of a Renewable Rich Standalone Hybrid Microgrid Considering Conventional Dispatch Methodologies

2021 ◽  
Vol 13 (22) ◽  
pp. 12734
Author(s):  
Md. Fatin Ishraque ◽  
Sk. A. Shezan ◽  
Md. Sohel Rana ◽  
S. M. Muyeen ◽  
Akhlaqur Rahman ◽  
...  
Keyword(s):  
Operating Cost ◽  
Storage Device ◽  
Optimized Design ◽  
Diesel Generator ◽  
Optimal Sizing ◽  
Load Following ◽  
Hybrid Microgrid ◽  
Cost Of Energy ◽  
Voltage Frequency ◽  
Superior Approach

This paper presents an evaluation of the optimized design of an off-grid hybrid microgrid for alternative load dispatch algorithms with the determination of the most optimal sizing of each equipment, analyzing the voltage and frequency outputs and various costs of the proposed microgrids. Kushighat and Rajendro Bazar, two geographical locations in Bangladesh have been taken as test sites. The proposed microgrids incorporating diesel generator, renewable resources, storage device, and 23.31 kW of demand have been optimized for five conventional load dispatch methodologies: HOMER predictive dispatch, Load Following, Generator Order, Cycle Charging, and Combined Dispatch to reduce the system’s net present cost, gas discharge and cost of energy. HOMER (Hybrid Optimization of Multiple Electric Renewables) software has been used for the analysis to determine the optimal sizes and costing and the voltage-frequency performances of the microgrids are analyzed using MATLAB/Simulink. From our analysis, load following is determined as the superior approach with a minimum operating cost of 3738 USD, net present cost of 152,023 USD, CO2 discharge of 3375 kg/year and cost of energy of 0.208 USD /kWh along with a steady voltage-frequency output. Combined dispatch is determined as the worst strategy for the proposed microgrids with the highest energy cost of 0.532 USD /kWh, the operational cost of 15,394 USD, net present cost of 415,030 USD, and high CO2 discharge. At the end of this work, a comparative analysis between the proposed design, another hybrid, and traditional generation plant is also presented. The findings of this work will be appropriate for any location with an identical demand profile and meteorological estate.

Techno-Economic Analysis of Solar e-Cooking Systems for Rural Communities in Nigeria

2021 ◽  
Vol 107 ◽  
pp. 203-208
Author(s):  
Ogheneruona E. Diemuodeke ◽  
Michael Orji ◽  
Clinton Ikechukwu ◽  
Yacob Mulugetta ◽  
Youba Sokona ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Economic Policy ◽  
Rural Communities ◽  
Economic Analysis ◽  
Clean Energy ◽  
Solar Pv ◽  
Battery Storage ◽  
Cost Of Energy ◽  
Induction Cooking ◽  
Design Analyses

This paper presents solar PV electric cooking systems to fill the gap of clean energy stove demand in Africa and in particular in rural communities. The design analyses of four different solar PV electric cooking configurations, based on resistive burner and induction burner, are presented. The levelised cost of energy (LCOE) of the solar PV induction e-cooking, with battery storage, is 0.39 $/kWh. Sensitivity analysis was done to ascertain the affordability range of solar PV e-cooking. It was shown that the combination of the reduced cost of investment and good sunshine would most likely make the solar PV induction e-cooking competitive. However, the acceptability of the solar PV induction cooking will require addressing some important technical, economic, policy and socio-cultural related barriers.

Self-assembly with colloidal clusters: facile crystal design using connectivity landscape analysis

Soft Matter ◽  
2017 ◽  
Vol 13 (39) ◽  
pp. 7098-7105 ◽  
Author(s):  
Mehdi B. Zanjani ◽  
John C. Crocker ◽  
Talid Sinno
Keyword(s):  
Self Assembly ◽  
Landscape Analysis ◽  
Efficient Design ◽  
Geometrical Analysis ◽  
Design And Optimization ◽  
Colloidal Clusters ◽  
Crystal Design

Geometrical analysis of connectivity enables efficient design and optimization of colloidal cluster assemblies.

scholarly journals Investigation of Auxiliary Power Potentials of Solar Photovoltaic Applications of Dry Bulk Carrier Ships

2019 ◽  
Author(s):  
Wandifa Saidyleigh ◽  
A. I. Olcer ◽  
R Baumler
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Population Expansion ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
International Shipping ◽  
Cost Of Energy ◽  
Bulk Carriers ◽  
Photovoltaic Technology

The increase in world seaborne trade over the past decade due to global economic and population expansion has resulted in a corresponding increase of world shipping fleet with even greater size and power requirements. The bulk of these ships use cheap and widely available fossil fuels, mainly oil for operation but which has deleterious effects on the environment. In order to address environmental concerns in the shipping sector, the International Maritime Organization (IMO), responding to the global call to reduce greenhouse gases emissions from international shipping adopted technical and operational measures. These are to ensure efficient energy management on ships and have led to the application of many innovative technologies including the use of renewable energies and alternative fuels on ships to minimize fossil fuel consumption and reduce emissions. However, in order to achieve a substantial emissions reduction in international shipping, the potential applicability of a technology which utilizes a universal renewable energy resource on the largest ship type in international shipping fleet should be investigated. This research focuses on investigating the potential of Solar Photovoltaic technology on dry bulk carriers using a developed methodology and Levelised cost of energy concept as the basis for comparison. The results of this research can be used to guide decision makers about the potentials of Solar Photovoltaic technology on dry bulk carriers in general whilst its developed methodology may be useful in the specific context for determining which ships and under what circumstances solar PV is an option.

scholarly journals Performance Analysis of a Stand-Alone PV/WT/Biomass/Bat System in Alrashda Village in Egypt

2021 ◽  
Vol 11 (21) ◽  
pp. 10191
Author(s):  
Hoda Abd El-Sattar ◽  
Salah Kamel ◽  
Hamdy Sultan ◽  
Marcos Tostado-Véliz ◽  
Ali M. Eltamaly ◽  
...  
Keyword(s):  
Hybrid System ◽  
Storage System ◽  
Optimal Solution ◽  
Grey Wolf Optimizer ◽  
Storage Unit ◽  
Renewable Power ◽  
First Case ◽  
Cost Of Energy ◽  
Battery Bank ◽  
Sooty Tern

This paper presents an analysis and optimization of an isolated hybrid renewable power system to operate in the Alrashda village in the Dakhla Oasis, which is situated in the New Valley Governorate in Egypt. The proposed hybrid system is designed to integrate a biomass system with a photovoltaic (PV), wind turbine (WT) and battery storage system (Bat). Four different cases are proposed and compared for analyzing and optimizing. The first case is a configuration of PV and WT with a biomass system and battery bank. The second case is the integration of PV with a biomass system and battery bank. The third case is WT integrated with biomass and a battery bank, and the fourth case is a conventional PV, WT, and battery bank as the main storage unit. The optimization is designed to reduce component oversizing and ensure the dependable control of power supplies with the objective function of reducing the levelized cost of energy and loss of power supply probability. Four optimization algorithms, namely Heap-based optimizer (HBO), Franklin’s and Coulomb’s algorithm (CFA), the Sooty Tern Optimization Algorithm (STOA), and Grey Wolf Optimizer (GWO) are utilized and compared with each other to ensure that all load demand is met at the lowest energy cost (COE) for the proposed hybrid system. The obtained results revealed that the HBO has achieved the best optimal solution for the suggested hybrid system for case one and two, with the minimum COE 0.121171 and 0.1311804 $/kWh, respectively, and with net present cost () of $3,559,143 and $3,853,160, respectively. Conversely, STOA has achieved the best optimal solution for case three and four, with a COE of 0.105673 and 0.332497 $/kWh, and an NPC of $3,103,938 and $9,766,441, respectively.

Efficient design and optimization of MEMS by integrating commercial simulation tools

1998 ◽  
Vol 66 (1-3) ◽  
pp. 15-20 ◽  
Author(s):  
Oliver Nagler ◽  
Michael Trost ◽  
Bernd Hillerich ◽  
Frank Kozlowski
Keyword(s):  
Efficient Design ◽  
Design And Optimization ◽  
Simulation Tools

Modeling and Optimization of Solar PV System With Pumped Hydro Energy Storage System

2021 ◽  
pp. 147-185
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Economic Cost ◽  
Energy Storage System ◽  
Solar Pv ◽  
Pv System ◽  
Modeling And Optimization ◽  
Pv Panel ◽  
Cost Of Energy ◽  
Solar Pv System

Implementation of modified AHP coupled with MOORA methods for modeling and optimization of solar photovoltaic (PV)-pumped hydro energy storage (PHS) system parameter is presented in this chapter. Work optimized the parameters, namely unmet energy (UE), size of PV-panel, and volume of upper reservoir (UR), to get economic cost of energy (COE) and excess energy (EE). The trail no.11 produces the highest assessment values compared to the other trails and provides EE as 16.19% and COE as 0.59 $/kWh for PV-PHS. ANOVA and parametric study is also performed to determine the significance of the parameters for PV-PHS performance. Investigation results indicate the effectiveness and significant potential for modeling and optimization of PV-PHS system and other solar energy systems.

scholarly journals Analysis of Techno-Economic-Environmental Suitability of an Isolated Microgrid System Located in a Remote Island of Bangladesh

2020 ◽  
Vol 12 (7) ◽  
pp. 2880 ◽  
Author(s):  
Hasan Masrur ◽  
Harun Or Rashid Howlader ◽  
Mohammed Elsayed Lotfy ◽  
Kaisar R. Khan ◽  
Josep M. Guerrero ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Economic Feasibility ◽  
Added Value ◽  
Renewable Energy Resources ◽  
Hybrid Microgrid ◽  
Load Demand ◽  
Cost Of Energy ◽  
Remote Island ◽  
Heavy Burden ◽  
Energy Options

Following a rise in population, load demand is increasing even in the remote areas and islands of Bangladesh. Being an island that is also far from the mainland of Bangladesh, St. Martin’s is in need of electricity. As it has ample renewable energy resources, a renewable energy-based microgrid system seems to be the ultimate solution, considering the ever-increasing price of diesel fuel. This study proposes a microgrid system and tests its technical and economic feasibility in that area. All possible configurations have been simulated to try and find the optimal system for the island, which would be eco-friendly and economical with and without considering renewable energy options. The existing power supply configuration has also been compared to the best system after analyzing and investigating all technical and economic feasibility. Sensitivity and risk analysis between different cases provide added value to this study. The results show that the current diesel-based system is not viable for the island’s people, but rather a heavy burden to them due to the high cost of per unit electricity and the net present cost. In contrast, a PV /Wind/Diesel/Battery hybrid microgrid appeared to be the most feasible system. The proposed system is found to be around 1.5 times and 28% inexpensive considering the net present cost and cost of energy, respectively, with a high (56%) share of renewable energy which reduces 23% carbon dioxide.

scholarly journals Approaching Zero

2010 ◽  
Vol 132 (05) ◽  
pp. 22-27
Author(s):  
Tim Lieuwen ◽  
George Richards ◽  
Justin Weber
Keyword(s):  
Carbon Emissions ◽  
Department Of Energy ◽  
The European Union ◽  
High Hydrogen ◽  
Load Following ◽  
Renewable Power ◽  
Advanced Combustion ◽  
Biomass Supply ◽  
The Us ◽  
Process Controls

This article explores different ways to keep carbon emissions to minimum. The pressure of meeting environmental and energy security concerns while also satisfying growing demand requires the current generation to increase, diversify, and optimize the use of energy sources. The alternative to pre-combustion capture approaches, which generally lead to high hydrogen combustion, is to capture the carbon after combustion. Combusting biomass is another approach to achieve low net carbon emissions. Recently, significant interest has emerged in algae as a biomass supply. Some species of algae grow at phenomenal rates, providing a new option for biomass supply. Continued development of advanced combustion methods, materials, and process controls might be expected to increase the potential to follow the load. However, the relative contributions of load following and energy storage are expected to depend on the specific combination of renewable power and fossil fuel backup. Major programs from the US Department of Energy, the European Union, China, India, and other countries are underway, in addition to internal programs at many of the largest energy and petrochemical companies in the world.

Hybrid Distributed Power Generation for an Isolated Rural Settlement in Masirah Island, Oman

2011 ◽  
Author(s):  
Saleh Al Saadi ◽  
Moncef Krarti
Keyword(s):  
Power Systems ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Small Community ◽  
Solar Pv ◽  
Cost Of Energy ◽  
Storage Batteries ◽  
Electrical Generation ◽  
The Cost

This paper summarizes the findings from a feasibility study of using renewable energy sources in combination with conventional power systems to meet the electrical requirements for an isolated island of Masirah in Oman. The study has been conducted to determine the best hybrid system to generate electrical energy needed for a small community of 500 residential buildings. A series of a simulation analyses have been carried out to evaluate and optimize different distribution technologies including photovolatics, wind and diesel for electrical generation in combination with storage batteries. It was found that the cost of energy could be reduced by as much as 48% compared to the cost for the baseline generation system currently used in the Masirah Island (i.e. diesel-driven generators). In particular, it was found that wind turbines in combination with storage batteries have a great impact in reducing the cost of generating electrical energy for the residential community. Moreover, solar PV panels were found unattractive under the current diesel price rates but could potentially become viable if the diesel prices increase. The paper outlines an optimal design for generating electricity for the community at lowest cost while minimizing carbon emissions.

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