Results 171 to 180 of about 1,285 (211)

Induction Motor Starting in Islanded Microgrids

IEEE Transactions on Smart Grid, 2013
Motor loads require high amount of reactive power for a short period during their startup. The high reactive power drawn from the system causes voltage dips at startup time and potentially overvoltage after motor startup is over. The voltage dip and overvoltage may cause the relays to trip and the system to go unstable.
Milad Falahi, Karen L. Butler-Purry, Mehrdad Ehsani   +2 more
openaire   +1 more source

Microgrids energy trading in islanding mode

2012 IEEE Third International Conference on Smart Grid Communications (SmartGridComm), 2012
In this paper, we address the case where two microgrids are isolated from the main power grid but can exchange energy with each other in a peer-to-peer (P2P) manner. The goal is to minimize the total cost resulting from energy generation and transportation, while each microgrid satisfies its local power demand.
Javier Matamoros, David Gregoratti, Mischa Dohler   +2 more
openaire   +1 more source

Cooperative Scheduling of An Isolated Island Microgrid

2018 5th IEEE International Conference on Cloud Computing and Intelligence Systems (CCIS), 2018
With the increasing cost of fossil fuels, the use of renewable sources of power generation has become an inevitable reality. However, the utilization rate of photovoltaic power generation is very low, and most of the energy is wasted. In this paper, a scheduling method is proposed to maximize the use of solar energy. The upper layer can adjust the load
Chunxia Dou, Jiangsong Yao, Tengfei Zhang 0001   +2 more
openaire   +1 more source

Forecast-based Optimization of Islanded Microgrids

2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2018
In the context of the energy transition, the operational management of microgrids becomes an issue of increasing importance. In this paper, we compare two optimization models for planning generators and storage units in an islanded microgrid, while dealing with uncertainty in load- and PV-forecasts.
Roel J. J. Brouwer, J. Marjan van den Akker, F. P. M. Dignum, Wouter Vermeiden   +3 more
openaire   +2 more sources

Enhancing Flexibility of an Islanded Microgrid With Electric Springs

IEEE Transactions on Smart Grid, 2019
An electric spring (ES) is effective in enhancing the operational flexibility and facilitating renewable energy integration. An ES can determine the operation status of the connected noncritical loads (NCLs) by adjusting its output voltage. It is possible to use NCLs as operation resources for renewable integration.
Liang Liang 0004, Yunhe Hou, David J. Hill 0001   +2 more
openaire   +3 more sources

Microgrid islanding operation experience

22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013), 2013
This paper describes the experience of islanding operation of a microgrid located in Provincial Electricity Authority (PEA)'s distribution network. The equipment for islanding operation and resynchronization were installed to enable the islanding operation of the microgrid.
T. Tantimaporn, S. Jiyajan, S. Payakkarueng   +2 more
openaire   +1 more source

Islanding control of DG in microgrids

2009 IEEE 6th International Power Electronics and Motion Control Conference, 2009
This paper discusses islanding control of power electronics interfaced distributed generation (DG) systems in microgrids. Particularly, the following topics will be addressed: microgrid sytem configurations and features, grid-connected system control mode, transient analysis during power outage, islanding detection and load shedding, standalone system ...
null Qin Lei, F.Z. Peng, I.J. Balaguer
openaire   +1 more source

Stochastic analysis of islanded microgrid

2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2020
With the dependence of utilities on the renewable energy resources (RES) and more emphasis on decentralized power system, the more and more small grids as an autonomous control grids in the form of the microgrid is the need of hour. For the steady state analysis of the micro-grid with large penetration of RES, the deterministic methods are not ...
openaire   +1 more source

Detection of Islanding for Microgrid Based on Discrimination Factor of Islanding

2020 21st National Power Systems Conference (NPSC), 2020
The present work proposes an islanding identification scheme based on the discriminating factor of islanding (DFI) extracted by the superimposed angle of impedance. The suggested methodology effectively identifies islanding within half of the cycle, discriminates islanding events (IEs) from non-islanding events (NIEs) at 0% power mismatch (PM), and ...
Pravin Kumar, Vishal Kumar, Barjeev Tyagi   +2 more
openaire   +1 more source

Unintentional islanding detection in microgrid

2017 International Conference on Energy, Communication, Data Analytics and Soft Computing (ICECDS), 2017
With the growing demand of electricity, conventional generation is no longer the most efficient method. This brings the concept of distributed generation in the picture, in which there are generation sources at load end. This type of structure is called microgrid. The concept of microgrid is still under development.
Abhishek Sharma, R. Sunitha
openaire   +1 more source