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Ongoing developments in the electricity system are changing the requirements for planning and design of distribution networks. Based on field research at several Dutch distribution network operators a conceptual planning process is defined and current practices in distribution network planning in the Netherlands are investigated. Currently mainly traditional deterministic approaches are applied, but...
The constant evolution of electricity grids towards smart grids is changing the paradigm. The intelligent layer which is added over the physical one is bringing a change in the mode in which the electricity is provided. Hence, the electricity providers are shifting their business from product-centered to service-centered ones, change that ensure a better use of their resources and a much wider acceptance...
Distributed Generation (DG) has received increasing attention during the last decade. Advantage and constraints of DG application are well known to both DG owner and electric utility. Various technologies are available for DG units among them gas GenSet is, in particular, more attractive to the investors as the technology provides the control on DG generation. However, there are various financial...
In this paper, we present the fundamental principles of power distribution over single busbar network and the relevant mathematical models. Subsequently, we investigate into the impact of the load voltage fluctuation on the system reliability and the impact can be quantified by employing several state-of-the-art statistical models. Specifically, we analyse the reliability and performance of distribution...
Smart grid is an electricity network to monitor and control all its physical environments of electricity infrastructure in a fully automated way. As the importance of reliable energy utility infrastructure is growing, various security countermeasures to protect power system from security threats have been suggested, whereas there were less consideration on security by design, from the bottom system...
Reliability is one of the most concerned issues in wireless communications for smart grid, especially in the home area network(HAN) where the smart meter data are collected. In this paper, we model the HAN as a wireless mesh network that deploys cooperative transmissions for improving link reliability. We then define a new reliability performance metric that depends not only on the channel model but...
With the increasing terrorism and sabotage activities, the power grid is becoming more vulnerable to various kinds of cyber and physical attacks. The coordination between the attacks could bring disastrous impacts. In this paper, two typical attack coordination scenarios are studied: the coordination between load redistribution (LR) attack and generator attack; and the coordination between LR attack...
Resiliency with respect to extreme events, such as a major hurricane, is considered one of the key features of smart distribution systems by the U.S. Department of Energy (DOE). In this paper, approaches to resilient distribution systems are reviewed and analyzed. Three important measures to enhance resiliency, i.e., utilization of microgrids, distribution automation (DA), and vulnerability analysis,...
The traditional ac power system is challenged by the increased amount of distributed energy resources. Enormous changes and investments are necessary in order to achieve an ac smart grid capable of coping with the challenges introduced. In dc, solutions seem to be more straightforward since most of the distributed energy sources and most of the loads connected to the low voltage grid operate with...
The electrical infrastructure of the future will be much more complex than today. It will integrate traditional and sustainable energy sources, existing and new distribution networks, customers with quite different consumption patterns and a variety of smart control systems. At this moment, however, there is no comprehensive engineering model that can cope with the higher level of complexity of future...
As a result of the changes that occur in the electrical distribution networks, there is guidance tendency toward users, not only to power systems. This is a feature of the smart grid that will ensure safety operational and power quality, and also facilitates network connection of renewable source. Smart grid can intelligently integrate the behavior of all users connected to this network — electricity...
The use of Information and Communication Technology (ICT)-based power system applications increases continually which poses new engineering challenges regarding the development, validation and management of both - the applications and the intertwined infrastructures. In this paper the need for a joint analysis of power and ICT systems for evaluating smart grid applications is discussed and a systematic...
The evolution of distribution systems (DS) towards the smart-grid concept posses new challenges, triggered by the integration of distributed generation (DG) and the installation of new devices. These challenges raise the need to reconsider the traditional network operation during the planning stage, enabling the DS to be flexible to operate under different network configuration scenarios. In this...
New trends in electricity production, that involve generating power locally at the distribution voltage level by using renewable energy sources, are changing the paradigm of the distribution network, giving it an active role with the integration of Distributed Generators (DG), which leads to the concept of active distribution networks. A key element that connects the distribution system to the rest...
Consistent high growth of Indian economy has resulted in a surging demand for energy. Since, independence Indian power system has grown from 1362 MW to 250GW. In the past decade, installation of renewable sources of energy for electricity has grown at an annual rate of 25%, which has reached 29,500 MW as on March 2014. Despite this, presently 400 million people in the country have no access to electricity...
Upcoming smart grid environment can offer innovative mechanisms for efficient network management, to relieve the network presently reeling under congestion. A smart network pricing mechanism has been proposed in this paper, to provide effective network pricing signal to the users for network congestion. Considering that future smart meters could measure user's coincident peak demand, the user is offered...
Smart Grid constitutes the next generation of electricity delivery systems that intend to enhance reliability, efficiency, and security of the power grid. A fundamental component of this intelligent network is the Advanced Metering Infrastructure (AMI), which provides a two-way communication network between Utilities and a collection of smart meters located at the customers side. The interconnected...
The development of smart distribution grid is an important part of the construction of the smart grid. The study of the distribution network evaluation system helps to find out the problems of the development of distribution network and thus plays an important role in distribution network planning. With research of the distribution network of Wuhan, this article considers the characteristics of smart...
In this paper, we discuss the communications reliability requirements posed by the smart power grid with a focus on communications in support of wide area situational awareness. Implementation of wide area situational awareness relies on both transmission substation networks and wide area optical networks. We study the reliability of a sample communications network of the California Power Grid and...
Smart grid is the next-generation electrical power system for providing reliable, efficient, secure, and cost-effective energy generation, distribution, and consumption. For a smart grid network, communications infrastructure/protocols and wireless networking will play an important role in achieving these objectives. The communication network designing will involves detailed analysis of the communication...
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