Decoupled Voltage Stability Assessment of Distribution Networks Using Synchrophasors
2016 (English)Conference paper (Refereed)
This paper presents a real-time voltage stabilityassessment in distribution networks (DNs) capable of separatingthe effects of the transmission and distribution network by usingsynchronized phasor measurements. The method aims to assisttransmission and distribution system operators to quantify theneed of their services in different parts of the DN in order toprovide adequate voltage support to their specific stakeholders.The method uses data from phasor measurement units (PMUs) toestimate models for both DN and transmission network (TN). ATh´evenin equivalent model is estimated for the TN and a T-modelfor the DN. By applying the superposition theorem on these twomodels, the contribution of each network to the overall systemvoltage stability can be distinguished at a specific bus (equippedwith a PMU). The method has been validated by a hardware-inthe-loop setup which consists an OPAL-RT real-time simulatorand three PMUs.
Place, publisher, year, edition, pages
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-184220OAI: oai:DiVA.org:kth-184220DiVA: diva2:915627
2016 IEEE PES General Meeting
QC 201609012016-03-302016-03-302016-09-01Bibliographically approved