Source Management of A Hybrid DC Micro Grid in Rural Area of Bangladesh (original) (raw)
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A Noble Design Of DC Micro Grid For Rural Area In Bangladesh
This paper is mainly addressing the design and analysis of a DC micro grid power system in a remote area in Bangladesh. Generation of electricity is not enough to serve its demand. Majority of the islands and the rustic communities are deprived from electricity and most of them are relying on some fossil fuels for searching their required energy. The cost of fuels is high and for this reason the cost of expected generating power is increased tremendously in rustic areas. By burning fossil fuels, increasing carbon dioxide (CO2) is rocketed into the atmosphere. It has raised national and international concern and efforts to develop alternative renewable sources of primary energy such as solar, biomass, wind, hydro and other green power technologies are being used to provide sustainable, affordable and comfortable sources of energy. In Bangladesh Solar Home System (SHS) has reached a great number of installations by the effective programs run by Infrastructure Development Company Limited (IDCOL) which has been started about 12 years ago. SHS is popular when it replacesany lamp run by kerosene or wax. However, demand of customer increases day by day and old customers as well as new customers is searching a bigger power source than as in SHS. As a result it cannot meet the increased demand of customers with an affordable price. This paper also aimed to mention how to serve the increased demand of a customer with an affordable price by means of DC micro grid system.
2016
The Electric power crisis is one of the major problems in Bangladesh, the gap between demand and generation is increasing day by day. Moreover, most of the power plants are gas based which will be phased out in future. An alternate electric supply is an essential part for electrifying the developing countries, in this context an innovative approach of rural electrification including DC microgrid, mini-grid and nanogrid would be technically and economically feasible. The thesis draws also attention on the development of technology which enables community owned power system to emerge in the rural areas based on distributed SHS and demand of that community. Firstly, the electric status and renewable potential in Bangladesh are studied and considered those data into the software based simulation to analysis the technical feasibility to implement DC microgrid by Homer pro tools. The distributed RES (Renewable Energy sources) considered solar PV and biomass. The booming of a large number ...
2013
This paper covers the development of a new smart distributed DC Micro-grid system, especially in rural areas in order to utilize energy available from distributed, renewable generators. The proposed DC micro-grid system is hybrid in nature and it utilizes the proper use of renewable as well as fossil fuel resources. It is normally fitted for residential and small commercial applications as well as for powering sustainable rural communities where the electricity from main grid is not available. In dc grid system we can store the excess amount of power during the low load demand period which is economical compared to the ac grid system which needs to keep their inverters switch on all the time.
Design and Simulation of a Hybrid Microgrid System for Remote Areas of Kuakata, Bangladesh
Australian Journal of Engineering and Innovative Technology, 2022
Electrification of the rural areas which are located far from the grid is comparatively more expensive due to the high cost associated with power transmission. Renewable energy-based hybrid micro-grid systems can be a cost-effective method for the supply of electricity in these remote areas. This study aims at assessing the technical and economic viability of a hybrid micro-grid system for rural areas of Bangladesh. A hybrid microgrid system consisting of PV solar cells, wind turbine, and Diesel Generator has been designed for remote regions of Kuakata, Patuakhali. A combination of different technologies capable of generating electricity has been used to ensure the reliable and continuous supply of electrical power. HOMER, a simulation software, has been used for optimizing multiple energy sources to maintain an uninterrupted supply of power in a cost-effective way. Finally, cost analysis and consistency checking have been done by another simulation software called RETScreen.
Potential Use of DC Microgrid for Solar and Wind Power Integration in Rural Areas in India: A Review
ADBU Journal of Electrical and Electronics Engineering (AJEEE), 2018
This paper describes the possibilities of the application of DC microgrids to solve the rural areas, energy problem in the country (India). DC Microgrids open a gateway for integration of solar and wind energies which together are an efficient and cleaner way of renewable energy generation, which can be integrated into the power distribution network. They have several other advantages, which include - reduction in transmission losses, improvement in power quality & reliability, reduction in emissions and even they are cost effective. The most important characteristic is that it provides a possibility for electrification of remote villages, which are far from the reach of the conventional grid. This paper presents a detailed discussion on the possibility of application of DC microgrids for rural areas in India.
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The AC and DC power system structures need to be modernized to meet consumer demands. DC microgrids are suitably admired due to their high efficiency, consistency, reliability, and load sharing performance, when interconnected to DC renewable and storage sources. The main control objective for any DC microgrid is providing proper load–power balancing based on the Distributed Generator (DG) sources. Due to the intermittent nature of renewable energy sources, batteries play an important role in load–power balancing in a DC microgrid. The existing energy management strategy may be able to meet the load demand. However, that technique is not suitable forrural communities’ power system structure. This research offers an energy management strategy (EMS) for a DC microgrid to supply power to rural communities with solar, wind, fuel cell, and batteries as input sources. The proposed EMS performs the load–power balancing between each source (renewable and storage) in a DC microgrid for dynam...
Applied Sciences, 2018
The AC and DC power system structures need to be modernized to meet consumer demands. DC microgrids are suitably admired due to their high efficiency, consistency, reliability, and load sharing performance, when interconnected to DC renewable and storage sources. The main control objective for any DC microgrid is providing proper load-power balancing based on the Distributed Generator (DG) sources. Due to the intermittent nature of renewable energy sources, batteries play an important role in load-power balancing in a DC microgrid. The existing energy management strategy may be able to meet the load demand. However, that technique is not suitable forrural communities' power system structure. This research offers an energy management strategy (EMS) for a DC microgrid to supply power to rural communities with solar, wind, fuel cell, and batteries as input sources. The proposed EMS performs the load-power balancing between each source (renewable and storage) in a DC microgrid for dynamic load variation. Here, the EMS handles two battery sources (one is used to deliver power to the priority load, and the other is utilized in the common DC bus) to meet the required demand. The proposed EMS is capable of handling load-power balancing using renewable energy sources with less consumption of non-conventional energy sources (such as a diesel generator). The performance of the system is analyzed based on different operating conditions of the input sources. The MATLAB/Simulink simulation model for the proposed DC microgrid with their EMS control system is developed and investigated, and their results are tabulated under different input and load conditions. The proposed EMS is verified through a laboratory real-time DC microgrid experimental setup, and the results are discussed.
This paper is written with respect to the modeling of DC Micro grid using solar panel and backup generator by applying Hybrid Optimization Model for Electric Renewable (HOMER) pro software tool to supply cost effective and reliable independent power to a limited number of rural communities that used specific type of DC loads. The model area was selected ahead of the modeling and analysis process and indicated on Map using the HOMER pro area search facility. A generator that used Methanol was added to the system to enable the designed model more reliable. The contribution of each source type was analyzed in detail in the analysis section of the paper. It showed that the contribution of the generator is insignificant as compared to the contribution of the solar panel in supplying the loads. This paper mainly focused in analyzing the primary and secondary simulation data outputs by considering the base and current model systems. The base model system contained the solar panel and battery storage only. Whereas the current model system contained the solar panel, battery storage and generator. The optimal operation shows a unit cost of Rs. 0.125/kWh with the selected energy system with 100% renewable energy contribution eliminating the need for conventional generator. The developed model helped in sizing the components of the energy system and decides the optimal combination for electrification of the rural village in Navamalai, Aliyar region, Coimbatore District, India by DC power. Final conclusion reached based on the identified optimal model and analysis.
Study and Modelling of Green Energy based Micro-Grid for Rural Area
Indian Journal of Science and Technology, 2016
Background/Objectives: Green energy based microgrid system is the development of eco-friendly and cost effective system for electrical supply in the area where grid is not feasible. In this paper, the study and modelling of green energy based micro grid for rural area of Tantivela, Gujarat has been done. Methods/Statistical Analysis: In this paper, the analysis has been done on Hybrid Optimisation for Electric Renewables (HOMER) software. Firstly, the geographical data of the area has been collected including the village data and climatic data. By calculating the load demand of the household accordingly the village population and occupation has been estimated. Based on availability of the renewable resources combination of the energy has been modelled. Using the software HOMER software the optimum and cost effective model of standalone micro grid system for rural area. Findings: A standalone type microgrid has been simulated which can handle both AC and DC load. For the Maximum Power Point Tracking system perturb and observe method has been adopted. The standalone system different combination of PV array, charge controller, load controller, inverter, and battery need to be decided based on the load demands and parameters. The biomass, wind and solar are taken to be the main renewable energy resources as for generation. The testing and cost analysis has been done in Hybrid Optimisation for Electric Renewable (HOMER) to find optimum combination of energy which will be cost effective, eco-friendly and have viable architecture. After selecting the resources and decide the equipment's the final simulation is done. In HOMER we analysed cost summary including total net production cost, operational cost and levelized cost and decide on best possible architecture of PV array, biomass, wind, converter, inverter and rectifier. Applications/Improvements: By simulating green energy microgrid it makes an optimum use of resources that are locally abundant resources with economic viable, affordable and sustainable. It could be improved by proper transmission network and improve surge power capacity to enhance cost-effectiveness.
DC Microgrids for energy communities in the developing world
2018
The main problem of energy supply in the developing counties is that a very large portion of their rural population still does not have access to a secure supply of electricity. DC microgrids seems an attractive solution due to lower capital, operation, engineering and maintenance costs. Many developing countries have shown interest in the development of such systems in order to improve the quality of their inhabitants’ life, together with the development of the local economies (creation of new jobs) through the creation of local energy communities. This paper reviews the conditions under which DC microgrids provide an attractive option for local energy communities in the developing world. It also reviews the best practices of DC local energy communities in developing countries and highlights relevant issues, e.g. regulatory framework, standardization, protection, secure supply etc. that have to be faced, in order to establish DC microgrids in rural areas