M. KHATIR, S A. ZIDI, S. HADJERI, M K. FELLAH, R. AMIRI

PERFORMANCE EVALUATION OF LINE AND CAPACITOR COMMUTATED CONVERTER BASED HVDC SYSTEM IN SIMULINK ENVIRONMENT

Anahtar Kelimeler:

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PERFORMANCE EVALUATION OF LINE AND CAPACITOR COMMUTATED CONVERTER BASED HVDC SYSTEM IN SIMULINK ENVIRONMENT

Most of HVDC systems consist of line commutated converters. The demand of reactive power is supplied by filter or capacitor banks which are connected on the primary side of the convertertransformer. This conventional design is well known and proven during last decades. However, such conventional converters suffer commutation failures when they operate as inverter at a weak AC system. A series capacitor between converter transformer and thyristor valves (CCC: Capacitor Commutated Converter) can improve the immunity of inverter against commutation failure. Two concepts for the transmission with a high power capacity using HVDC technology are compared in this paper. These include the conventional and the CCC-inverters, connected to weak AC systems. The simulation results are presented using MATLAB/SIMULINK.

Keywords:

HVDC Transmission, Commutation Failures, CCC Inverter Weak Receiving AC System,

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M. Meisingset, A. M. Gole, " A Comparison of Conventional and Capacitor Commutated Converters based on Steady-state and Dynamic Considerations," 7th International Conference on AC/DC Power Transmission, November 2001,
London, IEE Conference Publication No. 485, pp. 49-54. J. Reeve, J. A Baron, G. A. Hanley, "A technical assessment of artificial commutation of HVDC converters," IEEE Transactions on Power Apparatus and Systems, Vol. PAS-87, Oct. 1968, No. 10, pp. 1830-1840.
Ekström Å: High Power Electronics HVDC and SVC, EKC – Electric Power Research Center, Stockholm, June 1990.
CIGRE WG 14.07, "Guide for planning DC lines terminating at AC system locations having low short-circuit capacities", Part I: AC-DC interaction phenomena. S.A. Zidi, S. Hadjeri and M.K. Fellah, "Dynamic Performance of an HVDC Link," Journal of Electrical Systems, issue 1-3, 2005, pp. 15-23.
Gole, A. Daneshpooy, "Capacitor Commutated Converter Circuit Configurations for DC Transmission," IEEE Transactions on Power Delivery, Vol. 13, No. 4, October 1998.
A. J. J. Rezek, A. A. dos Santos Izidoro, J. Soma de Sà, F. C. da Fonseca,"The Capacitor Commutated Converter (CCC) as an Alternative for Application in HVDC projects," in proceedings of the ISIE '03. IEEE International Symposium on Publication, vol. 1, 9-11 June , pp. 432- 437. Current Transmission, ISBN 0-852969-41-4, the Institution of Electrical Engineers, 1998.
M. Khatir, S.A. Zidi, S. Hadjeri, M.K. Fellah, O. Dahou, "Effect of the DC Control on Recovery from Commutation Failures in an HVDC Inverter feeding a Weak AC Network", Journal of Electrical Engineering (JEEEC), vol. n. 4, 2007, pp. 200-206.
S. Tsubota, T. Funaki, K. Matsuura, "Analysis of interconnection between HVDC transmission with Capacitor Commutated Converter and AC power transmission system," IEEE Power Engineering Society Winter Meeting, Vol. 4, 23-27 Jan. 2000, pp. 2926-2931.
C.V. Thio, J.B. Davies and K.L. Kent, "Commutation Failures in HVDC Systems," IEEE Trans. Power Delivery, Vol. 11, no. 2, Apr. , pp. 946-957. KHATIR Mohamed was born in Ain Témouchent,