A hybrid fuzzy-PI controller for voltage source converter based HVDC (VSC-HVDC) transmission system is proposed in this paper. At first, the elementary model of VSCHVDC is described. Then the fuzzy self-tuning control strategy is proposed, in

The existence of the modules capacitors necessitates the control of their voltage level. A dedicated controller is described that has two main parts the averaging controller that takes care of the average capacitor voltage level per leg and the b