Commutation Failure Analysis in Multi-Infeed HVDC Systems

The commutation failure vulnerability of multi-infeed HVDC converters to ac side faults is analyzed. Faults in multi-infeed systems can cause commutation failure events in the nearby local converter or concurrently in both converters. The immunity of the system to both these events is investigated a...

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Veröffentlicht in:	IEEE transactions on power delivery 2011-01, Vol.26 (1), p.378-384
Hauptverfasser:	Rahimi, E, Gole, A M, Davies, J B, Fernando, I T, Kent, K L
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit faults Commutation Commutation failure Converters Direct current networks Electrical engineering. Electrical power engineering Electrical power engineering Exact sciences and technology Failure Faults high-voltage direct current (HVDC) transmission HVDC transmission Immunity Impedance Indexes Integrated circuit modeling Mathematical analysis multi-infeed systems Power electronics, power supplies Power networks and lines transient simulation Valves Voltage distortion
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Beschreibung
Zusammenfassung:	The commutation failure vulnerability of multi-infeed HVDC converters to ac side faults is analyzed. Faults in multi-infeed systems can cause commutation failure events in the nearby local converter or concurrently in both converters. The immunity of the system to both these events is investigated and suitably parameterized. "Commutation Failure Immunity Index" is calculated for multi-infeed systems with different ratings. Anomalous failure in valve current commutation due to voltage distortion has been investigated.
ISSN:	0885-8977 1937-4208
DOI:	10.1109/TPWRD.2010.2081692