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.
The increasing share of renewables is creating new challenges for distribution grids and operators have to adopt more and more advanced tools for the evaluation of network investments, especially for scenarios in which distributed generation is expected to drastically grow. In particular, the maximum connectable power (Hosting Capacity) as well as the benefits that Smart Grid technology can bring...
In order to perform significant cost/benefit and scalability/replicability analyses, it is necessary to process a large set of distribution networks. However, the small number of networks available in literature is one of the main limitations on studying the impact of advanced control systems and their industrialization potential. To overcome this problem a methodology to generate artificial and realistic...
This paper deals on the featured impact of the spread of Bus Rapid Transit (BRT) technology in the Italian distribution networks framework. Because of its particular charging method, quick at stops and slower at terminals, an investigation of its effects on the electricity network is needed. For the purpose a methodology is firstly defined and proposed, and then a test case reproducing a realistic...
Nowadays in many countries, the increasing influence of sustainable mobility systems are influencing distribution networks, often characterized by a fragmented scenario in which diffuse generation (DG) in particular from not-programmable Renewable Energy Resources (RES) and storage technologies are causing both criticalities and new opportunities for the network operation. This paper considers the...
Since the last decade, distribution networks are facing a continuously growing penetration of distributed generation, mostly thanks to the “clean energy” incentives promoted by national governments. In particular, these initiatives have enhanced the presence of renewable-based generators in electricity grids. Taking advantage of their intermittent nature, the curtailment of a small portion of production...
The paper presents a study about the maximum power actually used by residential customers in Italy, in order to permit the evaluation of different levels of contractual power. The study takes into account different power thresholds and the impact on their number and duration of a photovoltaic power plant and an electric storage system. A description of the control algorithms developed by RSE for the...
The centralized control is one of the methods proposed, also by the Italian Regulatory Authority (consultation 255/15), to integrate more renewable energy sources in the electrical networks. Due to the limited number of available measurements in the distribution system, one of the key problems for a centralized control scheme is the correct estimation of the network state. In general, the placement...
Storage systems represent an important instrument to increase the renewable electricity generation, in particular in distribution networks. However, there are still many issues due to cost effectiveness of this solution, but also related to the lack of experience on the management of these devices and on their effects on the distribution network. One particular issue concerns the correlation between...
The recent increase of distributed generation in distribution networks has determined the necessity of developing new control strategies for the mitigation of power quality issues. One of these functions, considered as one of the most promising solutions for the management of voltage congestions, is represented by the droop control of DG units. The traditional Power Flow formulation often does not...
The fast growth of distributed generation (DG), in particular from non-programmable renewable resources, poses many challenges on the management of MV networks. Storage systems, operated by the Distributor System Operator (DSO) or by third parties, may mitigate both the local and global effects of the DG. A major challenge is the identification of the optimal position and power exchange according...
The integration of generation units in distribution grids is one of the main research topics in the field of smart grids. Governments are supporting the connection of small/medium size generators directly to the distribution network, but the consequent growing number of energy producers poses several technical issues. For the planning and operation of a distribution network it is then important to...
Storage devices are gaining interest as possible options to improve operation of ‘active’ distribution networks in presence of high level of distributed generation, especially from Renewable Energy Resources (RES). The Italian demonstrator of the GRID4EU project (www.grid4eu.eu) is testing in a real field an advanced voltage control for active MV networks. The controller is able to include a storage...
The contribution describes the algorithm to increase the hosting capacity of the distribution network by means of Voltage control of Medium Voltage feeders in presence of storage units and its application on a large MV network in the framework of the Italian demonstration of the FP EU project GRID4EU (www.grid4eu.eu). The distinctive feature of the proposed approach is the technical-economic optimization...
Nowadays in many countries, the increasing influence of diffuse generation (DG) in distribution networks, in particular from not-programmable Renewable Energy Resources (RES), is showing criticalities especially where the network reinforcement is very difficult because of economic or environmental factors. In addition to RES, Electric Vehicles and storage technologies are increasing both the criticalities...
The quick growth of Distributed Generation (DG) is posing some challenges to the distribution networks and to the power system on the whole since the total installed power is now comparable to the conventional generation park. To face those possible criticalities, the connection rules are undergoing a revision process in order to guarantee a more flexible operation of the networks and outlining an...
This paper describes an advanced method of analysis and optimization of Medium Voltage (MV) distribution networks with the aim to increase the energy efficiency, based on the grid reconfiguration.
The paper describes the algorithm that supports increasing the hosting capacity of the network by means of Voltage control of Medium Voltage feeders in presence of storage units. Starting from description of main characteristics and simulation results, the document depicts the future application of the algorithm in a real MV network.
In recent years several studies regarding optimal operation of distribution networks in presence of Distributed Generation (DG) were proposed. This paper describes an algorithm developed by RSE (“DISCoVER”) to increase the hosting capacity of the network by means of Voltage control of Medium Voltage feeders in presence of storage units.
• The problem of optimal operation of distribution systems is winning interest, as exploitation of distributed energy resources (DERs) is spreading. • New technologies and concepts for the operation of these networks are required in order to enable generators, storage units and loads working together in effective cooperation.
The problem of optimal operation of distribution systems is winning interest, as exploitation of distributed energy resources (DERs) is spreading. New technologies and concepts for the operation of these networks are required in order to enable generators, storage units and loads working together in effective cooperation. This paper presents a voltage optimization procedure, a description of Supervision...
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.