Transient Voltage Stability Analysis and Improvement of A Network with different HVDC Systems

Yan Liu, Zhe Chen

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10 Citationer (Scopus)

Abstrakt

This paper presents transient voltage stability analysis of an AC system with multi-infeed HVDC links including a traditional LCC HVDC link and a VSC HVDC link. It is found that the voltage supporting capability of the VSC-HVDC link is significantly influenced by the tie-line distance between the two links and the size of loads. In order to improve the transient voltage stability, a voltage adjusting method is proposed in this paper. A voltage increment component has been introduced into the outer voltage control loop under emergency situation caused by severe grid faults. In order to verify the theoretical analysis and the improved control method, real time simulation model of a hybrid multi-infeed HVDC system based on western Danish power system is established in RTDS™. Simulation results show that the enhanced transient voltage stability can be achieved.
OriginalsprogEngelsk
TitelProceedings of the IEEE Power and Energy Society General Meeting 2011
Antal sider8
ForlagIEEE Press
Publikationsdato2011
ISBN (Trykt)978-1-4577-1000-1
ISBN (Elektronisk)978-1-4577-1001-8
DOI
StatusUdgivet - 2011
BegivenhedIEEE Power and Energy Society General Meeting 2011 - Detroit, Michigan, USA
Varighed: 24 jul. 201129 jul. 2011

Konference

KonferenceIEEE Power and Energy Society General Meeting 2011
LandUSA
ByDetroit, Michigan
Periode24/07/201129/07/2011

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