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The aim of ADINE project is to develop and to demonstrate new methods for the electric distribution network management including distributed generation (DG). The active network management (ANM) method needs enabling solutions such as protection, voltage and reactive power control and planning and information systems of networks. The actual devices and monitored data from the real-life demonstrations...
In the present context of the Electric Supply Industry characterized by a market that is open down to the small customers connected to the low voltage network, the implementation of Distributed Energy Resources requires innovative solutions that could lead to efficient regulation schemes as well as new implementations of demand response and even defence plans for ensuring the robustness of the system...
This paper presents the technical considerations and economics of a number of solutions that would allow a greater installed capacity of distributed generation to be connected to, and operated within, the distribution network. After describing the various solutions, an energy yield and financial evaluation demonstrates that an active constrained connection manager informed by dynamic thermal ratings...
In the summer 2008 DONG Energy takes a major step towards the Intelligent Utility Network by implementing an IUN solution in their MV network. The solution-'SmartPIT'-will determine all line load flows, transformer loads and bus voltages in the entire MV network every 10 minutes; thus providing an unprecedented amount of information about the actual network state. Calculations are based on a combination...
Since 1998, Korea Electric Power Corporation (KEPCO) 's distribution automation system (DAS) has been deployed and now operated in whole 190 branch offices in KEPCO. From 2005, research project has been carried on, which titled with "Development of Intelligent Distribution Automation System (IDAS)" to give DAS more intelligence. The project is consisted of 4 sub projects in which high level...
Decentralized CHP micro units gain in importance for energy supply of residential buildings because of their high efficiency. The application occurs heat lead while the electrical power-production happens not conform to the demand. By uncoupling operating times and thermal demand with a thermal storage system a gird oriented operation mode is possible to homogenize the grid load. This operation reduces...
Gas-based combined heat and power (CHP) has matured enough to be regarded as the next evolutionary step in promoting energy efficiency use in the urban environment. Although its potential market is increasing, little research has been conducted into the combined technical effects that a high penetration of these units may have on both natural gas and electric (G&E) distribution networks. This...
The plug-and-play functionality of a typical microgrid should enable the connection of any microsource at any point without changing the system significantly. To achieve this feature, this paper presents a 'standard' microsource interface concept with embedded with storage in the form of ultracapacitors. The photovoltaic panel, which is the microsource, is connected to the MicroGrid through an inverter...
This paper presents a possible system approach to integrate storage system into the electrical grid. The simulation tool which has been developed bases on a real storage system that has been established at the Institute of High-Voltage Technology and Electrical Power System (HTEE). Besides the technical boundary conditions economic aspects are another important topic of this survey.
Distributed Energy Resources asset aligned to developments in real time asset Monitoring and Management solutions are opening up a new perspective on how future generation, distribution and supply businesses can be more effectively and economically coordinated.
Interconnection of various low voltages, small-scale distributed generators (DGs), energy storage devices and controllable loads interfaced through fast acting power electronic devices in an isolated remote area form a microgrid as islanding operation where conventional grid is not available. Combined heat and power (CHP) produced by DGs may be utilized in the local market making the Micro grid most...
Microgrids comprise a network of small scale distributed energy resources (DERs) like fuel cells, micro turbines, PV arrays and wind turbine etc. and energy storage devices. Current deregulation regime is encouraging open competition amongst the small/medium utility service providers in providing quality and reliable 'clean' power to the customers at an economic rate. Economic power production is...
AuRA-NMS is an autonomous regional active network management system currently being developed in the UK through a partnership between several UK universities, EDF Energy, ScottishPower and ABB. The scope of control to be undertaken by AuRA-NMS includes: automatic restoration, voltage control, power flow management and implementation of network performance optimisation strategies. Through the adoption...
This paper reports on field trials of the SuperTAPP n+ (an advanced voltage control relay (VCR) for online tap changers on transformers). This project is a collaboration between EDF Energy, Central Networks, CE Electric UK, ScottishPower, EA Technology and Fundamentals Limited. The SuperTAPP n+ relay estimates embedded generator output and total network load based on local substation measurements...
In the international research context set-up by the European Technological Platform SmartGrids, the Italian electrical energy distribution utility (ENEL Distribuzione) and the Italian electrical energy production and research utility (ENEL Produzione) launched a large national research project. The program provides the development of a test facility for the integration and test of distributed energy...
This paper presents a project that is being carried out by Endesa in Spain with the aim of controlling peak demand by modifying the consumption of customers within the small and medium enterprise sector. A full load control architecture is being developed and different pilot tests are being specified.
This paper shows how improving the network management by increasing the level of network automation and control improves the operating efficiency of medium voltage distribution networks. Specifically, the presentation shows the steps to equip gradually the network according to progressive investment capability, from Fault Passage Indicators (FPIs) and remote control, to automatic circuit reclosers...
The operation of micro generation connected to the distribution network can cause statutory voltage limits, recommended voltage unbalance levels and switchgear fault ratings to be exceeded. However, there are a range of distribution network designs and operating practices and thus the impact will vary accordingly. Relating losses, voltages, currents and load unbalanced ratio leads to conclusions about...
Up to now the focus of micro-and smart-grids analysis was to maintain the load flow using massive information technology to increase the supply guarantee by independent islanded-grids in regulator operation conditions but neglecting fault operation. In the paper will be shown the importance of a high short circuit power and low zero sequence impedance, listing of axioms for network planning and a...
This paper introduces a neuro-based branch's current state estimator for distribution networks in which a limited set of real-time data is available. This estimator employs inverse principle component analysis (IPCA) method. Using the IPCA method leads to some proper models devised so that the distribution network becomes observable and then load estimation will be possible. By determining load consumption...
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