Robustness of Smart Transformer Based-on Sliding Mode Controller under Grid Perturbations

Smart Transformer (ST) is a distribution transformer based on power electronic converters with advanced control and communication functionalities. As the improvement of ST's dynamic performance is, increasingly, required, this paper presents the design of Sliding Mode Controller (SMC) for the purpose. To study the performance of the proposed controller, a set of numerical simulations was carried out under different grid perturbations, such as, harmonics distortion, overvoltage, and voltage drop. The obtained results prove the enhanced performance and the robustness of the SMC against theses perturbations.