Overcurrent protection strategies for distribution system with distributed energy resources and fault current limiters

2016 ◽  
Author(s):  
Wen-Jun Tang ◽  
Hong-Tzer Yang ◽  
Chia-Chun Tsai ◽  
Piotr Lubicki
Keyword(s):  
Distribution System ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Fault Current ◽  
Distributed Energy ◽  
Overcurrent Protection ◽  
Protection Strategies ◽  
Fault Current Limiters

scholarly journals Adaptive Protection for Microgrid with Distributed Energy Resources

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1959
Author(s):  
Chathurika Chandraratne ◽  
Thaiyal Naayagi Ramasamy ◽  
Thillainathan Logenthiran ◽  
Gayadhar Panda
Keyword(s):  
Distribution System ◽  
Low Voltage ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Power Network ◽  
Distributed Energy ◽  
Software Environment ◽  
Overcurrent Protection ◽  
Adaptive Protection ◽  
Overcurrent Relay

The microgrid includes a distribution system with low voltage, controllable load, and distributed energy resources (DER). The DERs have been increased in the recent power network to address global environmental concerns, which creates challenges in faults, synchronization, inertia control, etc. As the technologies are getting advanced day by day, the past technology becomes obsolete. The internet of things (IoT) and artificial intelligence (AI) are the most discussed topics to obtain solutions for the challenges. One of the proposed solutions is adaptive overcurrent protection, as it can be used for any grid. In this paper, an algorithm is developed for the adaptive overcurrent relay protection to overcome the challenges of the microgrid with distributed energy resources. Then, the solutions obtained from the adaptive overcurrent protection algorithm network simulation are compared to the traditional overcurrent protection algorithm using the four key points such as selectivity, reliability, sensitivity, and speed to have a good performance in the power network. All the simulation studies are done in the electrical transient analyzer program (ETAP) software environment. Simulation results validate the performance of the proposed algorithm for adaptive protection using the IEEE-9 bus system with a microgrid.

scholarly journals Fault analysis considering fault current contributions from distributed energy sources

2021 ◽  
Author(s):  
Adnan Arapovic
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Distribution Systems ◽  
Energy Resource ◽  
Fault Analysis ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Fault Current ◽  
Renewable Energy Resources ◽  
Distributed Energy

With emerging concerns over climate change and the need for reduced greenhouse gas emissions, together with the growing awareness of the importance of the natural environment and the depletion of the earth's non-renewable energy resources, the generation of electricity from distributed renewable energy resource such as solar photovoltaic (PV) and wind energy has begun to expand at a rapid pace. Proliferation of convert-based distributed energy resources in distribution systems has introduced new challenges in determining the maximum possible fault currents that a power system must be able to withstand without being compromised. Therefore is is imperative to develop the mathematical and software simulation models that approximate the response of converter-based distributed energy resources during a fault on the transmission or distribution system in order to determine the fault current contributions to the electrical grid that a transmission or distribution utility needs to reflect in their connection impact assessments.

scholarly journals Fault analysis considering fault current contributions from distributed energy sources

2021 ◽  
Author(s):  
Adnan Arapovic
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Distribution Systems ◽  
Energy Resource ◽  
Fault Analysis ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Fault Current ◽  
Renewable Energy Resources ◽  
Distributed Energy

With emerging concerns over climate change and the need for reduced greenhouse gas emissions, together with the growing awareness of the importance of the natural environment and the depletion of the earth's non-renewable energy resources, the generation of electricity from distributed renewable energy resource such as solar photovoltaic (PV) and wind energy has begun to expand at a rapid pace. Proliferation of convert-based distributed energy resources in distribution systems has introduced new challenges in determining the maximum possible fault currents that a power system must be able to withstand without being compromised. Therefore is is imperative to develop the mathematical and software simulation models that approximate the response of converter-based distributed energy resources during a fault on the transmission or distribution system in order to determine the fault current contributions to the electrical grid that a transmission or distribution utility needs to reflect in their connection impact assessments.

scholarly journals The Role of Regulators in Promoting the Procurement of Flexibility Services within the Electricity Distribution System: A Survey of Seven Leading Countries

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4073 ◽  
Author(s):  
Karim L. Anaya ◽  
Michael G. Pollitt
Keyword(s):  
Distribution System ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Distributed Energy ◽  
Collective Interest ◽  
Regulatory Changes ◽  
System A ◽  
Use Of Resources ◽  
Generating Capacity ◽  
Tariff Structure

This paper identifies and explores regulatory issues that may have an impact on the use of flexibility services by distribution utilities to solve grid constraints. This can be done by flexible distributed energy resources which can be instructed, for instance, to reduce export generating capacity or increasing consumption. We want to identify how regulation can better support the development of the future distribution utility in its role as neutral market facilitator, enabling more competition in local flexibility markets and optimal use of resources. A set of questionnaires were designed to capture the insights around important aspects of the regulation of flexibility markets (utilities’ network incentives, network tariff structure, market design for flexibility markets, etc.). These were sent to distribution utilities, energy regulators, energy marketplaces, energy associations and relevant experts from seven jurisdictions. The responses suggest a collective interest in the procurement of flexibility services by distribution utilities from distributed energy resources. New regulations, the adaptation of current rules and recent consultations reflect this. However, the amount of progress with and preferences for key regulatory changes differ across jurisdictions.

scholarly journals Distributed Energy Resources Impact on Distribution System Reliability Under Load Transfer Restrictions

2012 ◽  
Vol 3 (4) ◽  
pp. 2048-2055 ◽  
Author(s):  
Armando M. Leite da Silva ◽  
Luiz C. Nascimento ◽  
Mauro Augusto da Rosa ◽  
Diego Issicaba ◽  
João A. Peças Lopes
Keyword(s):  
System Reliability ◽  
Distribution System ◽  
Load Transfer ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Distributed Energy ◽  
Distribution System Reliability

Optimization problem for meeting distribution system operator requests in local flexibility markets with distributed energy resources

2018 ◽  
Vol 210 ◽  
pp. 881-895 ◽  
Author(s):  
Pol Olivella-Rosell ◽  
Eduard Bullich-Massagué ◽  
Mònica Aragüés-Peñalba ◽  
Andreas Sumper ◽  
Stig Ødegaard Ottesen ◽  
...  
Keyword(s):  
Distribution System ◽  
Optimization Problem ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Distributed Energy ◽  
Local Flexibility ◽  
System Operator
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