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[1, 2010] 

Journal of Electrical Engineering, Vol 61, 1 (2010) 29-36

DYNAMIC PERFORMANCE OF A BACK-TO-BACK HVDC STATION BASED ON VOLTAGE SOURCE CONVERTERS

Mohamed Khatir – Sid-Ahmed Zidi – Samir Hadjeri – Mohammed-Karim Fellah

   The recent developments in semiconductors and control equipment have made the voltage source converter based high voltage direct current (VSC-HVDC) feasible. This new DC transmission is known as ``HVDC Light’’ or ``HVDC Plus’’ by leading vendors. Due to the use of VSC technology and pulse width modulation (PWM) the VSC-HVDC has a number of potential advantages as compared with classic HVDC. In this paper, the scenario of back-to-back VSC-HVDC link connecting two adjacent asynchronous AC networks is studied. Control strategy is implemented and its dynamic performances during disturbances are investigated in MATLAB/Simulink program. The simulation results have shown good performance of the proposed system under balanced and unbalanced fault conditions.

Keywords: HVDC, voltage source converter (VSC), IGBT, SPWM, control design


[full-paper]


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