Adequacy analysis of overhead line model for harmonic stability analysis of grid-connected voltage-source converters

Y. Sun, L. Wu, X. F. Wang, E.C.W. de Jong, F. Blaabjerg, V. Cuk, J.F.G. Cobben

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
1 Downloads (Pure)

Abstract

This paper investigates the harmonic stability of a STATCOM connected to the power grid over a 400 km double circuit overhead line. The impedance-based modelling approach is used for the harmonic stability analysis comparing the results from the frequency dependent (FD)-model and the π-model of the 400 km overhead line. It demonstrates that the the π-model approach produces pessimistic phase margin predictions leading to a conservative harmonic stability evaluation. The impedance model of the STATCOM is built in the αβ-frame, where the impacts of the inductive and capacitive operation modes are analysed. It reveals that the STATCOM introduces a negative resistance in the inductive operation mode, which may negatively interacts with the resonance frequencies of the grid. Time domain simulations using EMTDC™/PSCAD™ validate the critical stability point found by the impedance-based stability analysis.

Original languageEnglish
Title of host publication2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages8
ISBN (Print)9781538655412
DOIs
Publication statusPublished - 10 Sep 2018
Event19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italy
Duration: 25 Jun 201828 Jun 2018

Conference

Conference19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018
Country/TerritoryItaly
CityPadova
Period25/06/1828/06/18

Fingerprint

Dive into the research topics of 'Adequacy analysis of overhead line model for harmonic stability analysis of grid-connected voltage-source converters'. Together they form a unique fingerprint.

Cite this