scholarly journals Power Quality Assessment in Small Scale Renewable Energy Sources Supplying Distribution Systems

Energies ◽  
2013 ◽  
Vol 6 (2) ◽  
pp. 634-645 ◽  
Author(s):  
Nicolae Golovanov ◽  
George Lazaroiu ◽  
Mariacristina Roscia ◽  
Dario Zaninelli
Keyword(s):  
Renewable Energy ◽  
Quality Assessment ◽  
Power Quality ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Small Scale

scholarly journals Load Areas in Radial Unbalanced Distribution Systems

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 3030 ◽  
Author(s):  
Giovanni M. Casolino ◽  
Arturo Losi
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Small Scale ◽  
Location Information ◽  
System Operator ◽  
The Individual ◽  
Distribution Grids

The demand becoming flexible is a requirement for the full exploitation of renewable energy sources. Aggregation may foster the provision of flexibility by small-scale providers connected to distribution grids, since it allows offering significant flexibility volumes to the market. The aggregation of flexibility providers is carried out by the aggregator, a new market role and possibly a new market player. Location information of individual flexibility providers is necessary for both the aggregator and the system operators, in particular, the Distribution System Operator (DSO). For the former, information should allow treating a high number of individual flexibility providers as a single provider to offer significant flexibility volumes to the markets; for the latter, the information should ensure an adequate visibility of the connection of the individual providers to the grid. In the paper, the concept of Load Area (LA) is recalled, which combines the needs of location information of the aggregator and of the DSO. A method for the identification and modeling of LAs for the general case of unbalanced radial systems is proposed. The results of the methods’ application to two studied unbalanced networks are presented, showing the effectiveness and viability of the proposed approach.

scholarly journals Investigating the effect of DG infeed on the effective cover of distance protection scheme in mixed-MV distribution network

2018 ◽  
Vol 7 (3) ◽  
pp. 223-231
Author(s):  
Saad Muftah Saad ◽  
Naser El Naily ◽  
Faisal A. Mohamed
Keyword(s):  
Renewable Energy ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Distribution Network ◽  
Distribution Networks ◽  
Energy Sources ◽  
Distance Protection ◽  
Protection Measure ◽  
Protection Scheme ◽  
Modern Distribution

The environmental and economic features of renewable energy sources have made it possible to be integrated as Distributed Generation (DG) units in distribution networks and to be widely utilized in modern distribution systems. The intermittent nature of renewable energy sources, altering operational conditions, and the complex topology of active distribution networks makes the level of fault currents significantly variable. Thus, the use of distance protection scheme instead of conventional overcurrent schemes offers an appropriate alternative for protection of modern distribution networks. In this study, the effect of integrating multiple DG units on the effective cover of distance protection schemes and the coordination between various relays in the network was studied and investigated in radiology and meshed operational topologies. Also, in cases of islanded and grid-connected modes. An adaptive distance scheme has been proposed for adequate planning of protection schemes to protect complex networks with multiple distribution sources. The simplified simulated network implemented in NEPLAN represents a benchmark IEC microgrid. The comprehensive results show an effective protection measure for secured microgrid operation.Article History: Received October 18th 2017; Received in revised form May 17th 2018; Accepted July 8th 2018; Available onlineHow to Cite This Article: Saad, S.M., Naily, N.E. and Mohamed, F.A. (2018). Investigating the Effect of DG Infeed on the Effective Cover of Distance Protection Scheme in Mixed-MV Distribution Network. International Journal of Renewable Energy Development, 7(3), 223-231.https://doi.org/10.14710/ijred.7.3.223-231

scholarly journals The Cost-Benefit Analysis of the Electricity Production from Small Scale Renewable Energy Sources in the Conditions of Romania

2019 ◽  
Vol 32 ◽  
pp. 385-389 ◽  
Author(s):  
Pavel Atănăsoae ◽  
Radu Dumitru Pentiuc ◽  
Dan Laurențiu Milici ◽  
Elena Daniela Olariu ◽  
Mihaela Poienar
Keyword(s):  
Renewable Energy ◽  
Cost Benefit Analysis ◽  
Renewable Energy Sources ◽  
Cost Benefit ◽  
Electricity Production ◽  
Energy Sources ◽  
Small Scale ◽  
Benefit Analysis ◽  
The Cost

scholarly journals Development of a reactor with carbon catalysts for modular-scale, low-cost electrochemical generation of H2O2

2017 ◽  
Vol 2 (2) ◽  
pp. 239-245 ◽  
Author(s):  
Zhihua Chen ◽  
Shucheng Chen ◽  
Samira Siahrostami ◽  
Pongkarn Chakthranont ◽  
Christopher Hahn ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Water Purification ◽  
Low Cost ◽  
Renewable Energy Sources ◽  
Great Benefit ◽  
Energy Sources ◽  
Small Scale ◽  
Electrochemical Generation ◽  
Carbon Catalysts

Small-scale reactors for H2O2 production that can couple to renewable energy sources would be of great benefit for decentralized water purification.

Sign in / Sign up

Export Citation Format

Share Document