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.
Originalsprog | Engelsk |
---|---|
Titel | Proceedings of 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL) |
Antal sider | 8 |
Forlag | IEEE |
Publikationsdato | 10 sep. 2018 |
Sider | 1-8 |
Artikelnummer | 8458496 |
ISBN (Trykt) | 978-1-5386-5542-9 |
ISBN (Elektronisk) | 978-1-5386-5541-2 |
DOI | |
Status | Udgivet - 10 sep. 2018 |
Begivenhed | 19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italien Varighed: 25 jun. 2018 → 28 jun. 2018 |
Konference
Konference | 19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 |
---|---|
Land/Område | Italien |
By | Padova |
Periode | 25/06/2018 → 28/06/2018 |