Impact of Load Modeling on the Harmonic Impedance seen from the Transmission Network
Number of Authors: 6
2016 (English)In: Harmonics and Quality of Power (ICHQP), IEEE, 2016, 283-288 p.Conference paper (Refereed)
Traditionally when studying harmonics at transmis-sion system level the medium and low voltage grid is modeledwith either an equivalent short-circuit impedance or a fixed PQload (based on the powerflow) directly at the secondary side ofthe transmission transformer. However the recent replacement ofconventional loads with electronic loads as well as the extendeduse of power electronics in LV level will result in reductionof damping and increase of household capacitance which maychange the harmonic impedance seen from the upstream network(MV or HV) both in the dominant frequency and magnitude.In this paper a HV feeder is modeled in detail starting fromthe transmission transformer up to the household equipmentto investigate whether changes in the type of load affect theimpedance seen from the HV. The simulations are performedusing software package PSCAD/EMTDC.
Place, publisher, year, edition, pages
IEEE, 2016. 283-288 p.
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Electric Power Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-60513DOI: 10.1109/ICHQP.2016.7783466ISBN: 978-1-5090-3792-6OAI: oai:DiVA.org:ltu-60513DiVA: diva2:1047393
17th International Conference on Harmonics and Quality of Power (ICHQP), Belo Horizonte, Brasil, 16-19 October 2016