Método ativo de cancelamento de harmônicos usando os métodos Constant Instantaneous Power e Sinusoidal Current Control.

Abstract

In recent years, energy quality and energy efficiency have become recurrent topics due to societal advancements. Concerns that emerged in the 1940s and 1950s have become increasingly relevant in today's context. Among these concerns, the presence of harmonic distortions in the electrical system stands out. Various methods have been developed to correct these distortions, with filters being the most common approach. Filters can be classified as active or passive. Passive filters are widely used in the market due to their simplicity and affordable cost. However, active filters offer several advantages, albeit being less common.The objective of this study is to perform a systemic evaluation of harmonics, analyze their effects on the electrical system, examine relevant IEEE standards, and investigate different harmonic cancellation methods, with a special focus on active filters, specifically the Sinusoidal Current Control (SCC) method. Strategies such as the Clarke transform and the P-Q theory are employed for designing active filters. Additionally, specific software tools like POWERSIM (PSIM) aid in this process. Thus, this work aims to contribute to the knowledge and understanding of harmonic effects on the electrical system, as well as the evaluation of cancellation methods, with a prioritized analysis of active filters using suitable design and simulation tools.