Modeling and design of an adaptive control for VSC-HVDC system under parameters uncertainties

Mohamed amine Kazi, Radouane Majdoul, Nadia Machkour

Abstract


The growing demand for electricity and the increasing integration of clean energies into the electrical grids requires the multiplication and reinforcement of HVDC projects throughout the world and demonstrates the interest in this electricity transmission technology. The transmitting system of the voltage source converter-high-voltage direct current (VSC-HVDC) consists primarily of two converter stations that are connected by a dc cable. In this paper, a nonlinear control based on the backstepping approach is proposed to improve the dynamic performance of a VSC-HVDC transmission system, these transport systems are characterized by different complexities such as parametric uncertainties, coupled state variables, neglected dynamics, presents a very interesting research topic. Our contribution through adaptive control based on the backstepping approach allows regulating the direct current (DC) bus voltage and the active and reactive powers of the converter stations. Finally, the validity of the proposed control has been verified under various operating conditions by simulation in the Matlab/Simulink environment.


Keywords


Adaptive control, HVDC-VSC transmission, Lyapunov theory, Parametric uncertainties



DOI: http://doi.org/10.11591/ijpeds.v12.i3.pp%25p

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