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The power grid in China has a series of problems of aged infrastructure, lack of resources and increased energy demand. The construction of smart grid is an important way to solve the above problems. The energy management and optimal adjustment in distributed power grid is the key for the system function realization, and several issues should be addressed: 1) How to effectively manage the uncertainties...
In emerging electrical distribution systems, a multitude of self-interested individual decision makers interacts among themselves and with the power grid. The optimal operation of the grid, according to a set of predefined technical and economic targets, can be achieved by influencing the behaviors of the decision makers with appropriate market signals. The technical feasibility and performance of...
Communication will play a significant role in the evolving smart grid which will allow services such as self-healing, real-time demand response and efficient use of energy. Due to the large number, distributed and more importantly intermittent nature of energy resources (e.g. wind and solar plants), smart grid will rely heavily on communication for super-fast balance between electricity supply and...
Previous work on demand response in smart grids considers dynamic real-time prices, but has so far neglected to consider how consumers can also be involved in planning ahead, both for scheduling of consumption and reserving their ability to regulate downward during balancing. This work models a flexible consumer in a novel two-settlement electricity auction. The consumer buys electricity on an ahead...
Renewable based power generation has significantly increased over the last years. However, this process has evolved separately from electricity markets, leading to an inadequacy of the present market models to cope with huge quantities of renewable energy resources, and to take full advantage of the presently existing and the increasing envisaged renewable based and distributed energy resources. This...
The emerging smart grid is a complex system of systems that will heavily depend on information and communication technologies for monitoring and control. As it aims at integrating multiple stakeholders including the end-users, there is evident the need for automating these mass interactions. Agents pose an interesting approach that could empower several aspects of the evolving infrastructure. Applications...
This paper presents the work program of DESIMAX, a collaborative research project looking at wide-scale implementation of demand side management (DSM) within electricity networks. To fully understand the implications of extended use of DSM, it is important to develop multi-scale models that will be able to capture, predict and demonstrate the response of the power system at time scales ranging from...
With the Smart Grid revolution and the increasing interest in renewable distributed sources, house energy consumption will play a significant role in the energy system: the whole energy generation and distribution system performance can be improved by optimizing the house energy management. Beside the energy bill reduction for single users, another advantage can be obtained for the overall system...
Due to climate change issues, fossil fuel depletion and increasing economic pressure, "smart" cities will have significantly altered physical, social and economic systems, built upon smart infrastructure. Key infrastructure is energy, with focus on electricity. The paradigm of physical, data transfer and information flow layers of the smart city power grid is shown. Challenges of the new...
Smart Grid is a novel initiative the aim of which is to deliver energy to the users and also to achieve consumption efficiency by means of two-way communication. The Smart Grid architecture is a combination of various hardware devices, management and reporting software tools that are combined within an ICT infrastructure. This infrastructure is needed to make the smart grid sustainable, creative and...
The construction of Smart Grid will comprehensively enhance the intelligent level of every step in the power grid of our country. The data forecasting ability determines the quality of smart grid. As a result of this, this paper constructs the background value of grey GM (1, 1) model by using threepoint Gaussian quadrature formula, improves its accuracy and the data quality. It indicates that reconstruction...
This paper contributes to the discussion about the future integration of Smart Grids in the existing energy supply system on a mostly economical and regulatory point of view. One of the main issues in this case is the increasing costs due to grid enhancements under regulated grid tariffs. On the one side a concept based on an integrative customer oriented approach is described and the new roles of...
Electric power systems are entering a new realm of operations. Large amounts of variable generation tax our ability to reliably operate the system. Couple this with a greater reliance on the electricity network to serve consumer demand that is likely to rise significantly even as we drive for greater efficiency. Trade-offs between energy and environmental needs will be constantly negotiated, while...
Smart grid is the latest trends and complexity problems of the whole world power system, it will realize the intelligence communication, optimization electricity production, transmission and promote the restructuring of the whole power industry. It can reduce the poor electricity generation units and continue to promote electricity generation emissions. This paper gives the electric network intelligence...
Supplying a reliable, efficient, economic electrical service to all customers is the basic responsibility of utilities. However, increasing penetration of new customers in distribution grids as dispersed generation (DG), electric heating systems and electric vehicles (EV), makes conventional operation of energy supply systems difficult while meeting the aforementioned responsibility. Therefore, the...
Smart Grid is the research focus of today's power industry. Demand Response (DR), as one of the primary components of the Smart Grid, has got much attention from the utilities and the consumers. In the electricity market with opening demand side, on the basis of optimal spot pricing with Primal - dual interior point algorithm, the distribution pricing model considering Demand Response was formed,...
The need for flexible electricity systems, changing regulations and the importance of renewable energy use may lead in time to the requirement of a decentralised electricity network. This paper presents an outline for developing a model of the decentralised energy network based on `energy hubs'. Energy hubs are units whereby multiple energy carriers are converted to energy services such as electricity...
The primary goal of this paper is the development of "smart" controls for power electronic inverters capable of interfacing a distributed generation (DG) unit to the utility grid. The inverter is designed as a single phase full bridge converter operating at 120 V 60 Hz AC. The "smart" functionalities of the inverter are defined here, in the perspective of the smart grid initiative...
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