Performance analysis of SVPWM based fuzzy controlled HVDC Light systems

Abstract

In this paper, modeling of converter is described, and space vector pulse width modulation (SVPWM) scheme is utilized to control the HVDC Light system in order to achieve better DC bus utilization, harmonic reduction, and for reduced power fluctuations. Fuzzy logic PI controller is also implemented for controlling both the converters of the HVDC Light transmission systems. The simulations are carried out in the MATLAB/SIMULINK environment and the results are provided for steady state and dynamic conditions. Finally, the performance of SVPWM based fuzzy PI controlled HVDC Light transmission system is compared with the conventional PI controlled HVDC Light system for different perturbations.