The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents both the theoretical approach and the HOMER software approach for the planning of optimum long-term microgrid. The proposed microgrid system comprises of solar, wind, energy storage, diesel generator and converter systems. The microgrid objectives of this work are to be at lowest net present costs and emissions. Hence, the theoretical approach will be using modelling equations...
In light of the inadequate state of Nigerias power sector in comparison to the US, this paper proposes a plug-and-play microgrid concept or Microgrid-as-a-Service (MaaS) for application in an urban Nigeria setting. We focus on an islanded microgrid setup wherein the microgrid will not need the grid-connectivity functionality, ceteris paribus. Under the MaaS plaform, customers can switch between the...
This paper describes the methodology that is used to optimize a rural microgrid operation, through a local energy management system. The proposed microgrid corresponds to a medium voltage microgrid located in Catalonia. The microgrid is composed by four secondary substations, with photovoltaics generation, an emergency diesel generator and two battery energy storage system. In the proposed problem...
Grid-interfacing converter systems with enhanced voltage quality are proposed for dc microgrid applications in this paper. By adapting the conventional series-parallel structure, a group of grid-interfacing system topologies and their control for the purpose of interfacing local generation/dc microgrid to the grid, or interconnecting dc microgrids. First step includes the integration of required number...
Expanding distributed generation systems, advancing energy storage options and innovative approaches in the area of demand management open new doors in grid operation. Grid-responsive devices can be considered as Distributed Energy Resources (DERs) and used to form Virtual Power Plants (VPPs). Because the aim is to benefit from many assets that have individual primary tasks and operational constraints,...
This paper presents a simple and robust control technique for distributed energy resources in microgrids. The technique utilizes the full potential of distributed energy resources, during grid connected and islanded operating modes. In grid-connected mode, the control pursues quasioptimum operation of the microgrid, so as to reduce distribution losses and voltage deviations while fully exploiting...
Decentralized generation (DG) systems are developed nowadays, as one of the possible means of addressing electricity and environmental challenges; they also offer social and economic benefits. DGs are suitable both for stand-alone and grid-tied applications. When operated in stand-alone, they could provide electricity for non-grid connected homes. However, in a grid-tied mode, they could supply power...
The transition from conventional power systems to smart grids is leading to a new generation of power networks which, among others characteristics, allows a more flexible demand consumption, and the efficient integration of renewable resources. MicroGrids (MGs) are a clear example of this trend. In this paper, a Multi-Agent Systems (MAS) implementation is proposed to address a decentralized operation...
In order to make up for the deficiencies of centralized power production and distant transmission, microgrids become a hot topic of research in distributed energy systems in recent years. And they will play an important role during development of sustainable energy, electric utility deregulation and restructuring efforts. Microgrids, which include various distributed energy resources and controllable...
This paper presents the implementation of distributed controls in a microgrid operation. The approach utilizes the advantages of using Multi Agent Systems technology for controlled operation of a microgrid. The auctioneer aims to optimize the operation of the microgrid by optimizing the production of local distributed generators. An artificial immune system based algorithm is applied on a typical...
Operation of future power systems will be shared between central and distributed generators. Control of distributed generators will need to be aggregated to form microgrids or dasiavirtual' power plants to facilitate their integration both in the physical system and in the market. Even customers will be part of the ldquonetwork looprdquo, both producer and consumer of electricity = ldquoprosumerrdquo...
This paper presents a microgrid paradigm with both DC and AC links, which may provide an effective way to integrate a heterogeneous set of small-size distributed energy resources into the existing electric power infrastructure. The collection of aggregated energy resource units at each level represents those distributed resources to the upper level as a single self-regulated entity (as a DC or AC,...
Peer-to-peer technology has the potential to achieve scalability, fault-tolerance and robustness in a cost-efficient way. These properties are not only of interest for Internet applications, but benefits can also be realized in industrial applications. In this short article we discuss the use of P2P networks for the control of microgrids, small islanded parts in electrical power systems. Although...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.