Simulador de cargas não-lineares regenerativo para testes em transformadores de potência

Abstract

This work presents a prototype of a regenerative power transformer´s test bench. The system presented here features loading level flexibility, current harmonic synthesis and control and low energy consuption.The system uses a back-to-back converter topology, which allows individual control of each frequency converter. It will be shown that this topology is responsible for It will be discussed the role of the PR (proportional resonant) controler in the harmonic synthesis capability issue. How this controler is more suitable, than the classic PI controler, in control strategies of alternated references. Details about the design and implematation of this type of controler will also be discussed inthis work. Finally, the methodology presented will be comproved with computacional simulation and experimental results.