Samenvatting
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.
Originele taal-2 | Engels |
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Titel | 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018 |
Plaats van productie | Piscataway |
Uitgeverij | Institute of Electrical and Electronics Engineers |
Aantal pagina's | 8 |
ISBN van geprinte versie | 9781538655412 |
DOI's | |
Status | Gepubliceerd - 10 sep. 2018 |
Evenement | 19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italië Duur: 25 jun. 2018 → 28 jun. 2018 |
Congres
Congres | 19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 |
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Land/Regio | Italië |
Stad | Padova |
Periode | 25/06/18 → 28/06/18 |