Browsing by Title
Now showing items 576-595 of 1042
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LabLink – A novel co-simulation tool for the evaluation of large scale EV penetration focusing on local energy communities
(AIM, June 2018)The rising penetration of distributed generation, electric energy storage and battery electric vehicles (BEVs) leads to new challenges and opportunities in the energy system. Local intelligences such as home energy management ... -
Large scale agent based simulation of distribution grid loading and its practical application
(AIM, June 2019)Academic studies and long-term planning demand for highly sophisticated simulation of distribution system’s usage considering operational actions and repercussions of market driven measures when applied on a large scale. ... -
Large scale PQ, temperature and energy monitoring in secondary substations.
(AIM, June 2019)This paper deals with an ongoing project for monitoring distribution transformers and their associated low voltage network. The main goal is not only to deliver a set of statistics and figures for assessing power quality, ... -
LCL-filter Optimization Design Considering Stability of Grid-Connected Inverters in Microgrid
(AIM, June 2018)As the existing optimized filter of grid-connected inverter design schemes give no consideration to the effect of grid impedances and current controllers, it will eventually cause the grid-connected LCL-filtered inverters ... -
LED technology in Public Lighting – Analysis of the impact in power quality in the low voltage grid distribution
(AIM, June 2019)EDP Distribuição, as distribution system operator (DSO), has been developing, in close collaboration with City Councils, an ambitious replacement program of the existing Public Lighting (PL) by the new LED technology. This ... -
Legal challenges for smart grid deployment in the european union
(AIM, June 2018)The present paper focuses on the legal opportunities for Smart Grid deployment in the European Union, in the light of the recasts of the Internal Energy Market Directive (IEM) and Renewable Energy Sources Directive (RES). ... -
Lessons learned from local energy projects in Scotland
(AIM, June 2018)As a country rich in renewable energy resources (including wind, tidal and hydro), many of which are in remote areas lacking electricity network capacity, Scotland is a country at the forefront of the challenges associated ... -
Lessons learnt from the eco-design process for an elbow connector for medium voltage networks
(AIM, June 2019)In order to avoid sub-optimization of the environmental performance of a product during design, eco-design is a holistic approach that considers the potential environmental impacts of a product life cycle during design, ... -
Leveraging industry standards to build an architecture for asset management and predictive maintenance
(AIM, June 2019)Digitalization is becoming an increasing part of the strategy of many DSOs as it has the potential to create new business opportunities as well as to minimize operation and maintenance costs. Vattenfall Eldistribution sees ... -
Levers optimization in short-term operational planning for real distribution systems
(AIM, June 2019)The increasing penetration of new Distributed Energy Resources (DER) in the distribution system are changing the medium and low voltage networks’ operation paradigm. The classical operation of distribution system, only ... -
Life cycle cost analysis of online dissolved gas analysis monitors
(AIM, June 2019)A simple life cycle cost model for online dissolved gas analysers (DGA) has been developed. The model has been applied to two commercially available DGA instruments based on different operating principles; these consequently ... -
Light flicker Performance of Low power LED Units
(AIM, June 2019)Currently, most countries in the world have been interested to reduce the power consumption due to energy resources shortage. So, manufacturers excited to expand in lot of production of low-power LEDs for huge benefits ... -
Light intensity immunity performance of LED street lamps under power quality disturbances
(AIM, June 2019)An increasing application of LED street lamps brings out an important question regarding their immunity against power quality disturbances. The behaviour of commonly used lighting equipment such as incandescent lamps, ... -
Light-Weight IEC 61850 GOOSE Based Loss of Mains Protection for Smart Grid
(AIM, June 2018)This paper presents a novel Loss of Mains (LoM) protection method based on IEC 61850 General Object Oriented Substation Event (GOOSE) protocol. With the increased penetration of distributed generation (DG), the requirements ... -
Lightning protection of unshielded overhead medium voltage power lines in South Africa
(AIM, June 2019)South Africa has an extensive overhead electricity distribution network at medium voltage (MV). It also has a significant amount of lightning in most areas. The purpose of this paper is to report on South African experiences ... -
Line Voltage Regulation in Low Voltage Grids
(AIM, June 2018)Despite volatile distributed energy resources and numerous variable loads, low voltage microgrids are required to ensure the permitted voltage range through an optimized operation and coordinated control. In order to resolve ... -
LISCOOL – A Demonstration Project of an Automated Fast Demand Response Management System: Main Outcomes
(AIM, June 2019)The increasing integration of Renewable EnergyResources (RES) in distribution systems with an inherentvariable production along with the inclusion of new assets,such as Electric Vehicle Charging Stations, is leading toan ... -
Load Models for Electricity Distribution Price Regulation
(AIM, June 2019)The Finnish Energy Authority, which regulates electricity distribution network operation, was given a new task in 2017 when the law on electricity markets changed. The new law states the distribution fees in any consumer ... -
Load Step Pre-announcement and Bang-Bang controller Implemented in Islanded Microgrids to Improve Frequency Stability
(AIM, June 2018)Unlike large traditional electrical power systems, islanded Microgrids usually have a low inertia, especially when a high share of inverter coupled generation is integrated. Frequency stability is one main concern in ... -
Local e-mobility prediction and deviated grid development based on data analysis
(AIM, June 2019)The growing e-mobility sector increasingly affects distribution grids. At the same time main parts of distribution grids have a lifetime of more than 40 years which should be used in the best possible way. That is why even ...