Title :
The capacitor commutated converter (CCC) as an alternative for application in HVDC projects
Author :
Rezek, Angelo J J ; Izidoro, Adriana A dos Santos ; De Sá, Jocélio Soma ; Da Fonseca, Frederico C.
Author_Institution :
UNIFEI, Minas Gerais, Brazil
Abstract :
Series compensated commutation is obtained by inserting a capacitor between the inverter transformer and the six pulse thyristorized Graetz bridge. This arrangement will provide a reduction in the impedance of the commutation circuit. This can permit grater efficiency of commutation, reducing the reactive power consumption of the converter and the consequent necessity of large shunt compensation banks. An improvement in the susceptibility of the converter to commutation failure is achieved, when the converter is operating in the inverter mode. In this paper, the valve commutation process as well as experimental and simulated results of current and voltage waveforms of the CCC, is studied and discussed.
Keywords :
HVDC power transmission; capacitors; commutation; power convertors; HVDC projects; capacitor commutated converter; commutation failure; current waveforms; impedance reduction; inverter transformer; reactive power consumption; series compensated commutation; thyristorized Graetz bridge; valve commutation process; voltage waveforms; Bridge circuits; Capacitors; HVDC transmission; Impedance; Inductance; Newton method; Pulse transformers; US Department of Transportation; Valves; Voltage;
Conference_Titel :
Industrial Electronics, 2003. ISIE '03. 2003 IEEE International Symposium on
Print_ISBN :
0-7803-7912-8
DOI :
10.1109/ISIE.2003.1267288
