scholarly journals Capacity configuration optimization and analysis for multi-energy complementary microgrid in hydropower station considering the renewable energy accommodation

2021 ◽  
Vol 2108 (1) ◽  
pp. 012064
Author(s):  
Yang Gao ◽  
Bin Liu ◽  
Jinyu He ◽  
Kai Zhang ◽  
Li Liu ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Hydropower Station ◽  
Practical Case ◽  
Configuration Optimization ◽  
Self Sufficiency ◽  
Resource Endowment ◽  
Renewable Energy Generation ◽  
Hydropower Stations ◽  
The Mathematical Model

Abstract Aiming at the problems of large short-term fluctuation, strong randomness and difficulty to consume of renewable energy generation, it is an important way to integrate abundant wind and photovoltaic (PV) power into hydropower stations to promote the consumption of renewable energy sources (RES). A hydro-wind-PV and energy storage multi-energy complementary microgrid (MECM) model is proposed to meet the demand of load supply and RES consumption. Firstly, according to the characteristics of load and resource endowment, the MECM is established in a hydropower station. Secondly, according to the two different objectives of load self-sufficiency and RES consumption, the mathematical model for the capacity configuration optimization of MECM was proposed. Finally, combined with the practical case study, the effectiveness and practicability of this scheme are verified, and different configuration schemes are discussed based on different objectives.

scholarly journals A Review on DC Microgrid and Decentralized Approach

2021 ◽  
Vol 9 (8) ◽  
pp. 1719--1723
Author(s):  
Mahesh Abdare
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Energy Generation ◽  
Energy Sources ◽  
Dc Microgrid ◽  
Renewable Energy Generation ◽  
The Given ◽  
Day By Day

Abstract: DC Microgrid is going to be a very important part of the Distribution system soon. The given circumstances have forced us to find how to utilize renewable energy sources in the integration to increase its reliability in our day-to-day life. This paper gives a good idea of the DC Microgrid and various methods being used for the controlling part of it. As day by day cost incurred in renewable energy generation is decreasing, we need to find out significant parts where this kind of DC Microgrid can be utilized to provide electricity in all parts of the country. Keywords: DGUs, ImGs, DMA, OXD, DC Microgrid.

The Forecasting of Renewable Energy Generation for Turkey by Artificial Neural Networks and a Auto-Regressive Integrated Moving-Average Model -2023 Generation Targets by Renewable Energy Resources

2021 ◽  
Author(s):  
özlem karadag albayrak
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Renewable Energy ◽  
Moving Average ◽  
Renewable Energy Sources ◽  
Energy Generation ◽  
Energy Sources ◽  
Ann Model ◽  
Artificial Neural ◽  
Renewable Energy Generation

Abstract Turkey attaches particular importance to energy generation by renewable energy sources in order to remove negative economic, environmental and social effects caused by fossil resources in energy generation. Renewable energy sources are domestic and do not have any negative effect, such as external dependence in energy and greenhouse gas, caused by fossil resources and which constitute a threat for sustainable economic development. In this respect, the prediction of energy amount to be generated by Renewable Energy (RES) is highly important for Turkey. In this study, a generation forecasting was carried out by Artificial Neural Networks (ANN) and Autoregressive Integrated Moving Average (ARIMA) methods by utilising the renewable energy generation data between 1965-2019. While it was predicted by ANN that 127.516 TWh energy would be generated in 2023, this amount was estimated to be 45.457 TeraWatt Hour (TWh) by ARIMA (1.1.6) model. The Mean Absolute Percentage Error (MAPE) was calculated in order to specify the error margin of the forecasting models. This value was determined to be 13.1% by ANN model and 21.9% by ARIMA model. These results suggested that the ANN model provided a more accurate result. It is considered that the conclusions achieved in this study will be useful in energy planning and management.

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.

Reliability Assessment of Microgrid-Integrated Electrical Distribution System

2022 ◽  
pp. 958-977
Author(s):  
Baseem Khan ◽  
Mesfin Fanuel
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Reliability Assessment ◽  
Smart Structure ◽  
Energy Sources ◽  
Reliability Indices ◽  
Micro Grid ◽  
Distribution System Reliability ◽  
Renewable Energy Generation

Due to the transition of traditional power system to smart structure, integration of renewable energy sources is of great importance. It is performed by using distributed generators and Micro grid. Integration of renewable sources is very useful for the reliability enhancement of distribution system as energy can be supplied locally at distributed level. Therefore, this chapter provides an overview of various reliability methods which are utilized for finding the impact of renewable energy generation on distribution system reliability assessment. These renewable energy sources are integrated in the distribution system at distributed and Micro grid level. Various characteristics of renewable energy sources are discussed to model them. A general problem of reliability assessment in terms of reliability indices is also discussed.

scholarly journals Integration of wave energy and other marine renewable energy sources with the needs of coastal societies

2017 ◽  
Vol 8 (1) ◽  
pp. 19-36 ◽  
Author(s):  
Richard Manasseh ◽  
SA Sannasiraj ◽  
Kathleen L McInnes ◽  
V Sundar ◽  
Purnima Jalihal
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Coastal Protection ◽  
Climate Change Scenarios ◽  
Renewable Energy Technologies ◽  
Marine Renewable Energy ◽  
Energy Technologies ◽  
Global Issue ◽  
Potential Benefits ◽  
Renewable Energy Generation

Marine renewable energy has the potential to solve both the energy-security and coastal-protection problems affecting coastal societies. In this article, the potential benefits arising from the combination of marine renewable energy technologies with infrastructural needs for coastal protection and other local needs are analysed. Classifications of technologies are developed to inform future coastal planning. Explanations of the resources and technologies are presented in layperson’s term. The threat of coastal inundation under climate-change scenarios is a major global issue. The investment in new infrastructure demanded by cities, ports and communities at risk of inundation could very substantially reduce the levelised cost of electricity from renewable sources, provided the infrastructure is designed with the dual purpose of power generation and coastal protection. Correspondingly, the sale of electricity from such infrastructure could defray the long-term cost of installing coastal protection. Furthermore, many marine renewable energy technologies provide a platform on which other forms of renewable energy generation could be mounted. It is noted that the complex geophysical and engineering issues arising from this opportunity must be assessed considering socio-economic factors.

scholarly journals The Renewable Energy Production Capability of Settlements to Meet Local Electricity and Transport Energy Demands

2021 ◽  
Vol 13 (7) ◽  
pp. 3636
Author(s):  
Balázs Kulcsár ◽  
Tamás Mankovits ◽  
Piroska Gyöngyi Ailer
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Energy Sources ◽  
Small Scale ◽  
Energy Demands ◽  
Energy Needs ◽  
Self Sufficiency ◽  
The Individual

In addition to the examination of electric power from local renewables, this study has sought the answer to the question of what proportion of vehicles are fueled by environmentally friendly energy saving technologies in the vehicle fleets of Hungarian settlements. Further, the study attempts to shed light on the self-sufficiency of Hungarian settlements with respect to the electricity and transport segments. In our assessments, the performance of small-scale household power plants (SSHPPs) utilizing local renewable energy sources, and small-scale power plants with installed capacities under 0.5 MW, was taken into account, as were the proportions of vehicles operating with partly or completely clean energy sources in the vehicle fleets of the individual settlements. Finally, the composition of the vehicle fleet has been examined in the light of the quantities of renewable electricity generated in the individual settlements, in order to consider whether these settlements are capable of covering the energy needs of their vehicle stocks from local sources. In the light of the results, the changes generated by the incentives and investments introduced over the past ten years can be established and subsequently, the energy policy needs in the future can be assessed. Our study has incorporated energy geography and settlement geography aspects.

Development of a Sustainable System Emulator for Living Environments Powered by Renewable Energy

2012 ◽  
Author(s):  
Mitsuru Endo ◽  
Takao Kakizaki ◽  
Kazunori Nagasawa
Keyword(s):  
Renewable Energy ◽  
Mixed Reality ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Self Sufficiency ◽  
Scale Models ◽  
Power Storage ◽  
Sustainable System ◽  
Living Environments ◽  
Domestic Power

In the present paper, a sustainable system emulator (SSE) for living environments powered by renewable energy sources is addressed. The main purpose of the SSE is to emulate the various factors that influence sustainability using a simple engineering approach. The main goal is to realize a useful mixed-reality platform for designing living environments with overall energy self-sufficiency as well as adequate habitability. The SSE design concept is based on the combination of an outer-system emulator (OSE) and an inner-system emulator (ISE). The OSE uses artificial lights and air blowers to emulate the sunshine and wind conditions in the Fukushima area of Japan. The ISE emulates the interior of a residential environment, based on renewable energy sources and power storage facilities, and consists of reduced-scale models powered by solar cells and a wind turbine. The ISE also includes DC appliances, which emulate domestic power usage, and electrochemical batteries for power storage. Control algorithms for energy management can also be implemented in the SSE. An experimental study was carried out using the SSE to emulate both the natural environment and living environments, and the relationship among the different emulation parameters was investigated. Furthermore, the experimental results indicated that accelerated testing using SSE may be effective for improving the design efficiency of renewable-energy powered systems.

scholarly journals The multi-state reliability model of a wind turbine

2019 ◽  
Vol 28 ◽  
pp. 01050
Author(s):  
Agata Orłowska
Keyword(s):  
Renewable Energy ◽  
Distributed Generation ◽  
Electricity Generation ◽  
Renewable Energy Sources ◽  
Reliability Model ◽  
Reliability Models ◽  
Res Integration ◽  
Renewable Energy Generation ◽  
Generation Unit ◽  
Generation Technology

In coming years it is expected the gradual decarbonisation of the electricity generation sector and its diversification − also in terms of renewable energy sources (RES). One of the aspects of the RES integration is the issue of availability and reliability of their work. Each distributed generation technology has its own specificity of work, which should be reflected in reliability models. In the article, the calculation example concerning the multi-state reliability model of a renewable energy generation unit is presented.

scholarly journals Kihívások és lehetőségek a hazai megújuló energiaszektorban (Challenges and possibilities in the Hungarian renewable sector)

2013 ◽  
pp. 48-61
Author(s):  
Bea Fodor
Keyword(s):  
Renewable Energy ◽  
Action Plan ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Green Power ◽  
To Come ◽  
Renewable Energy Generation ◽  
Plant Capacity ◽  
The Eu

A megújuló energiatermelés szerepének erősödését figyelhetjük meg az utóbbi években, évtizedekben. A zöldenergiák iránti igényt három fő motivátorcsoporttal lehet indokolni: ellátásbiztonság növelése, környezetvédelem és gazdaságélénkítés. Ezek a szempontok együttesen a fenntartható fejlődést szolgálják, és egyre inkább előtérbe kerülnek mind az EU, mind pedig hazánk szintjén. Magyarország 2010 végén az EU által előírt, 2020-ra elérendő 13%-os megújuló energiaarányt meghaladó, 14,65%-os vállalást tett a Nemzeti Cselekvési Tervben, ezzel is kifejezve elköteleződését a zöldenergiák ösztönzése felé. A jelenlegi kapacitások több mint megkétszerezését igénylő cél a hazai megújuló energiaszektor számára érdemi lehetőségeket jelent, de ezek megvalósításához szükség lenne az ígért új zöldenergia-támogatási rendszer, mielőbbi életbe lépésére. ____ The role of the renewable energy generation is getting even bigger and bigger in the last years, decades. The demand for the green energy has three main motivators: energy security, protecting the environment and fostering innovation. These goals serve the conception of sustainable development, and their function is increasingly highlighted in the EU and in Hungary as well. The EU has prescribed Hungary to reach a 13% share of renewable energy sources in 2020, but in the Hungarian national renewable action plan we have aimed to top the EU request, and to reach a 14,65% in the renewable proportion. This shows that our country is committed to inspire the renewables. In order to reach this goal, Hungary has to more than double its green power plant capacity, which means great possibilities in the sector; but at the same time means challenges as well, because the new renewable promoting system needs to come into force as soon as possible.

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