Improvement of the VSC-HVDC System Performances based on the Intelligent Controller
Voltage Source Converter based High Voltage Direct Current (VSC-HVDC) has been an area of growing interest during the recent years. Indeed, VSC-HVDC has the capability of controlling the active power and the reactive power; rapidly, independently, and simultaneously. The main focus of this research is on VSC-HVDC system modeling; in which, two different controllers, such as the PI controller and the fuzzy logic controller, have been implanted in the system. Furthermore, these two controllers have been analyzed and compared to each other. Whereas, the main objective of the work presented in this paper is finding the more suitable controller which could allow improving the robustness of the whole control system and its impact on the dynamic performance of the VSC-HVDC during parameter uncertainties, such as load change, parametric variation, and faults occurrence. The obtained results have shown that using the fuzzy controller could lead to a better performance of the studied system, compared to the other controller.
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