The ever increasing demand on the electrical energy has led to the diversification on the electrical energy generation technologies especially from the renewable energy sources like the wind and the solar PV. Micro-grids powered by distributed generators utilizing renewable energy sources are on the increase across the globe due to the natural abundance of the resources, the favorable government policies and the resources being environmentally friendly. However, since the electrical power distribution networks have always been passive networks, the connection of the distributed generations (DGs) into the network has associated several technical implications with distribution network protection and Over-Current Protective Devices (OCPDs) miss-coordination being one of the major issues. The need for a detailed assessment of the impacts of the wind turbine generation (WTGs) on the distribution networks operations has become critical. The penetration of the WTGs into a distribution network has great impacts on the short circuit current levels of the distribution network hence eventually affecting the OCPDs coordination time margins. The factors which contribute to these impacts are: The size of the WTG penetrating the distribution network, the location at which the WTG is connected on to the network and the Type of the WTG interfacing technology used. An important aspect of the WTGs impacts studies is to evaluate their short circuit current contribution into the distribution network under different fault conditions. The magnitudes of these short circuit currents, both the three phase and the single-line-to-ground (SLG) faults, are needed for sizing the various Over-Current Protective Devices (OCPDs) utilized in protecting the distribution network. The sizing of the OCPDs entails among other procedures coordinating them with both the upstream and the downstream OCPDs so that there is sufficient time margin between their Time Current Characteristic (TCC) curves. For Fuse-Fuse protection coordination, the ANSI/NEC rules stipulate that a minimum of 0.025seconds or more time margin should be maintained between the primary/downstream fuse and the secondary/upstream/back-up fuse. Due to the topological and operational differences between the different types of WTGs interfacing technologies, the electrical generators design industry has divided wind turbine generators into four different types labeled as Type I, Type II, Type III and Type IV. This paper presents a detailed study of the impacts brought upon by integrating wind turbine generators on a conventional Fuse-Fuse protection coordination scheme. A conventional Fuse-Fuse protection coordination scheme was modeled in Electrical Transients Analysis Program (ETAP) software and WTG with different interfacing technologies connected. A study of the impacts brought by the integration of the WTGs on Fuse-Fuse Miss-coordination was performed. IEEE 13 Node Radial Distribution Test Feeder was used for the study.
Square D “Guide to Power System Selective Coordination 600V and Below” Schneider electric 2006. Technical report
Martin Geidl “Protection of Power Systems with Distributed Generation: State of the Art” Power Systems Laboratory Swiss Federal Institute of Technology (ETH) Zurich 20th July 2005
Kirui, K. Murage, D. and Kihato, P. “Fuse-Fuse Protection Scheme ETAP Model for IEEE 13 Node Radial Test Distribution Feeder”. European Journal of Engineering Research and Science EJERS. Vol 4, No 9, September 2019.
“IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems” Standards Coordinating Committee 21, 28 July, 2003.
Juan A. Martinez and Jacinto M Arnedo “Impact of Distributed Generation on Distribution Protection and Power Quality” Power & energy society general meeting 26th-30th July 2009.
Pecas J A Lopes, Hatziargyriou N, Mutale J, Djapic P, Jenkins N. “Integrating Distributed Generation into Electric Power Systems: A review of drivers, challenges and opportunities” ScienceDirect. Electrical Power Systems Research 77(2007) 1189-1203.ELSEVIER.
Pooria Mohammadi, Hassan El-Kishyky, Mamdouh A Akher and Mazen A Salam “The Impacts of Distributed Generation on Fault Detection and Voltage Profile in Power Distribution Networks” IEEE Conference on Power Modulator and High Voltage (IPMHVC) 1st -5th June 2014.
Galina Antonova, Massimo Nardi, Alan Scott and Michael Pesin “Distributed Generation and its Impact on Power Grids and Micro Grids Protection” Protective Relay Engineers 65th annual conference 2nd -5th may 2012.
Seema Jadhar, Ruchi Harchandani ‘’ Grid Interfacing Technologies for Distributed Generation and Power Quality Issues-A Review’’ International Journal of Innovative and Emerging Research in Engineering Volume 2, Issue 3, 2015.
“WECC Wind Power Plant Dynamic Modelling Guide” Western Electricity Coordinating Council Modelling and Validation Work Group. Technical Report. April 2014.
Edward Muljadi and Abraham Ellis. “WECC Wind Generator Development”. National Renewable Energy Laboratory. Technical Report. March 2010.
Angel F Sarabia. “Impact of distributed generation on distribution system” Aalborg University Denmark. Masters Dissertation June 2011.
Thomas Gallery, Laura Martinez and Danijela Klopotan “Impact of Distributed Generation on Distribution Network Protection” ESBI Engineering & Faculty Management, Ireland
Kersting W H, “Radial Distribution Test Feeders” IEEE Power engineering society. Distribution systems analysis subcommittee report. 2000.
Thomas P. Smith, “The ABC’s of Over-Current Coordination- Analyzer” Published for electrical engineers by E POWER ENGINEERING. January 2006. Technical report.
EDWIN PHO “Over-current Coordination Study” California Polytechnic State University, 2009.
“Methods for Coordinating System Protective Equipment” facilities instructions, standards and techniques volume 3-9 United states department of the interior Bureau of reclamation December 1991.Technical report
Tasha Harvey “Selective Coordination for Over-Current Protective Devices: Application for Buildings in the United States” Kansas state university, master’s Thesis 2012.
Jim Pauley ‘’ Application of Over-Current Protection Rules to Transformers and Primary and Secondary Conductors’’ Codes and Standards Application Data. Square D Company. Bulletin Number 011DB0201. USA. Technical Report.
Christopher McCarthy, Ray O’ Leary and Doug Staszesky ‘’A New Fuse-Saving Philosophy’’ DistribuTech January 22-24 2008 Tampa Florida.
Les Hewitson, Mark Brown and Ben Ramesh “Practical Power Systems Protection” IDC Technologies 2004.
Leon M. Tolbert “Computer-Aided Coordination and Over-Current Protection for Distribution Systems” Industrial and commercial power systems technical conference 7th-11th may 1995.
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