Impacts of Placement of Wind Turbine Generators with Different Interfacing Technologies on Radial Distribution Feeder Short Circuit Currents

  • Kemei P. Kirui
  • David K. Murage
  • Peter K. Kihato

Abstract

Integrating distributed generations (DGs) into apower systems distribution network provides various benefits;however, their connection has associated several technicalimplications with distribution network protection andcoordination being one of the major issuesWith the global increase in wind turbine distributed generatorspenetration levels, the need for a detailed assessment of theimpacts of the wind turbine generation on the power systemsdistribution network operations has become critical. Thisassessment is normally done to allow for the simulation of thedynamic response of the distribution network to majordisturbances like the short circuits once the wind turbinegenerators (WTGs) have been integrated. The penetration ofthe wind turbine generators into a distribution network hasgreat impacts on the short circuit current levels of the systemwith some factors contributing to these impacts being: Thesize of the WTG penetrating the distribution network, Thelocation at which the WTG is connected on to the network andthe Type of the WTG interfacing technology used.An important aspect of the WTGs impacts studies is toevaluate their short circuit current contribution into thedistribution network under different fault conditions. Themagnitudes of these short circuit currents, both the three phaseand the single-line-to-ground (SLG) faults, are needed forsizing the various Over-Current Protective Devices (OCPDs)which are utilized in protecting the distribution network. Dueto the topological and operational differences between thedifferent types of WTGs interfacing technologies, theelectrical generators design industry has divided wind turbinegenerators into four different types labeled as Type I, Type II,Type III and Type IV.This paper presents a detailed investigation on the effects ofintegrating each of the four types of WTG configurations onapower systems distribution network’s short circuit currentslevels/magnitude. The radial distribution feeder studied wasthe IEEE 13 nodes radial test feeder and it was modeled andsimulated for short circuit currents analysis
Published
Feb 19, 2020
How to Cite
KIRUI, Kemei P.; MURAGE, David K.; KIHATO, Peter K.. Impacts of Placement of Wind Turbine Generators with Different Interfacing Technologies on Radial Distribution Feeder Short Circuit Currents. Proceedings of Sustainable Research and Innovation Conference, [S.l.], p. 206-212, feb. 2020. ISSN 2079-6226. Available at: <http://sri.jkuat.ac.ke/ojs/index.php/proceedings/article/view/885>. Date accessed: 06 apr. 2020.