Title :
Harmonic analysis of the converter stations modulated by GIC in HVDC transmission lines
Author :
Li, Weixia ; Wen, Jun ; Liu, Lianguang ; Ma, Guanglei ; Wang, Liying ; Xu, Chao
Author_Institution :
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing
Abstract :
Geomagnetic induced current (GIC) which the geomagnetic storm brings to the power networks can impact the power systems operators, it is necessary to study whether GIC will bring China high voltage direct current (HVDC) transmission systems and ultra-high voltage direct current (UHVDC) power transmission systems serious harms. The models of transfer function which is an effective harmonic analysis tool on the harmonic transfers between the sides of the converters, considering with the dc currents modulated by GIC in the HVDC transmission lines, the deviations of the firing angle and commutation angles of the converter valves are put forward in the paper. The harmonic characteristics of ac currents of the converters are calculated based on the models, and some conclusions are given out.
Keywords :
HVDC power transmission; magnetic storms; power system harmonics; transfer functions; China; GIC; HVDC transmission lines; converter stations; converter valves; geomagnetic induced current; geomagnetic storm; harmonic analysis; power systems operators; power transmission systems; transfer function; ultra-high voltage direct current transmission; Geomagnetism; HVDC transmission; Harmonic analysis; Power system analysis computing; Power system harmonics; Power system modeling; Power transmission; Storms; Transfer functions; Voltage; Geomagnetic induced current (GIC); Geomagnetic storms; HVDC transmission; Transfer function; converters; harmonic;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
