Browsing by Title
Now showing items 382-401 of 1042
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Evaluation and analysis of the utilization of data from Smart Meter System
(AIM, 2019-06-03)Smart meters have been installed worldwide, of which data represents actual condition of energy usage on customer side. Thus it has big potential for providing valuable information for power grid management and operation, ... -
Evaluation and Comparison of Islanding Detection Methods by extended Analysis of the Non Detection Zone
(AIM, 2019-06-03)The ongoing decentralization of the electrical energy system due to distributed generation leads to an increased occurrence of unintentional electrical islands. By using realistic models of distributed generation units and ... -
Evaluation of coordinated control of flexibility in an energy community in the presence of renewables, storage and grid injection limits
(AIM, 2018-06-07)Local clusters of Distributed Energy Resources, e.g. photovoltaic residential rooftop installations, put stress on the distribution grid due to reverse flows and induced overvoltage. Current mitigation strategies incentivize ... -
Evaluation of different local var control strategies in low voltage grids
(AIM, 2018-06-07)This paper compares for the first time the impact of different var-control strategies on the behaviour of low voltage grids. Besides existing control strategies like Q(U)- and cosφ(P)-control of PV-inverters also the new ... -
Evaluation of Flexibility Volumes for Constraint Resolution in LV Distribution Networks – The Nice Smart Valley Case
(AIM, 2019-06-03)This paper presents a study performed by EDF R&D for Nice Smart Valley (NSV), the French demonstrator of the INTERFLEX European project. The study consisted in an evaluation of the impacts of several consumption and ... -
Evaluation of grid relieving measures for integrating electric vehicles in a suburban low-voltage grid
(AIM, 2019-06-03)Within this study the impacts of future electric vehicle penetrations on the low-voltage level are analyzed. Therefore, the need for grid expansions is prematurely identified based on a suburban grid, operated by the ... -
Evaluation of the impact of high presence of small DERs connected to the urban LV network
(AIM, 2018-06-07)The subject addressed in this paper is the evaluation of the impact of small Distributed Energy Resources (DER) connected to the low voltage network in an urban area of the distribution network. The aim of this paper is ... -
Evaluation of the long-term impact of EV development on French distribution networks: technical characterization and integration costs evaluation
(AIM, 2019-06-03)For distribution networks, taking into account electric vehicles’ charging will directly lead to grid investment needs in order to create new connection infrastructures but will also imply investments to reinforce existing ... -
Evaluation of the new method Vdip for an earth fault location
(AIM, 2019-06-03)The paper presents results from the first application of the new method "Vdip" for an earth fault location. The Vdip method is based on evaluation of the change of negative sequence voltage recorded on LV side of distribution ... -
Examining solar system behavior and single-phase energy storage batteries in a small-scaled micro-grid to decrease reliance on AC network power
(AIM, 2018-06-07)In the last decade, with an increase in growing demand of electric power consumers, the use of solar energy is significantly increased for power supply to the urban and rural residential buildings and houses. The solar ... -
Experience from Deployment of Battery Storage in Czech Distribution Grid
(AIM, 2019-06-03)This paper presents results and findings from deployment and operation of a large-scale battery storage unit connected directly into a MV distribution grid in the Czech Republic. Furthermore, it offers an input for ... -
Experience of SmartGrid implementation in Ufa city power grid for optimization of the distributive electric system operation expenses
(AIM, 2019-06-03)This report focuses on the experience of metropolis power-supply system modernization through introduction of the SmartGrid international best practices. They solved systemic issues: low reliability, low controllability ... -
Experience on diagnosis of MV cable in wind farm
(AIM, 2019-06-03)This paper shows the diagnostic technology of cable system in the wind farm. We diagnose the 22.9kV MV cable system which had occurred breakdown at several times at low wind speed generation. First of all, partial discharge ... -
Experimental investigation of distribution grid restoration concepts using neighboring islanded LV-microgrids
(AIM, 2019-06-03)Nowadays low voltage microgrids can be used for the emergency power supply of local loads. To reduce downtime and to increase the security of supply of the surrounding distribution grid, these microgrids might be connected ... -
EXPERIMENTAL INVESTIGATION OF FERRORESONANCE AND MITIGATION MEASURES IN 35 KV ISOLATED NETWORKS
(AIM, 2019-06-03)Ferroresonance is a nonlinear dynamic phenomenon that appears in the electric power system between a non-linear inductances and system capacities excited by a sinusoidal voltage source. The most common non-linear elements ... -
Experimental microgrid with IEC 61850 Standard
(AIM, 2018-06-07)EDF R&D has undertaken various activities in the field of microgrids. Most recently, EDF R&D carried out new tests on its experimental lab “Concept Grid” with the purpose of testing internally developed solutions of DERMS ... -
Experimental Study of the Isolated Operation of a Home DC Link System
(AIM, 2019-06-03)This study focused on isolated power operation in a domestic home during a blackout. This type of operation has attracted much attention along with the growing availability of renewable energy technologies such as photovoltaic ... -
Experimental validation of Adaptive FCC and BRC functionalities for the proposed ELECTRA Web-of-Cells
(AIM, 2018-06-07)Distributed renewable energy sources are responsible for the rising of new challenges for the power system operation and control. To deal with the foreseen issues, the European funded project ELECTRA IRP has developed the ... -
Exploring IED data management and IEC 61850 features to introduce a condition based maintenance approach in the Portuguese DSO
(AIM, 2019-06-03)From many years, protection systems play a crucial role in power substations of electrical grids worldwide. Due to the criticality of those systems, it is highly recommended to keep them working with high availability and ... -
Exploring the Requirements and Considerations for a Probabilistic Simulation Toolset Leveraging OpenDSS
(AIM, 2019-06-03)Deterministic analysis has served and will continue to serve the industry well in distribution system analysis. However, with increasing penetration of distributed energy resources, the deterministic approach may no longer ...