Decoupled reference generator for shunt active filters using the conservative power theory
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Based on the framework of the Conservative Power Theory (CPT), this paper proposes some compensation strategies for shunt current compensators. CPT current decompositions result in several current-related terms associated with specific load characteristics, such as power consumption, energy storage, unbalances and load nonlinearities. These current components are decoupled (orthogonal) from each other and are used here to define different compensation strategies, which can be selective in minimizing particular effects of disturbing loads. Compensation strategies for single- and three-phase four-wire circuits are also considered. Simulated and experimental results are described to validate the possibilities and performance of the proposed strategies. © 2013 Brazilian Society for Automatics - SBA.
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Paredes, H. K M ; Brandão, D. I. ; Terrazas, T. M. ; Marafão, F. P. (COBEP 2011 - 11th Brazilian Power Electronics Conference, 2011) [Trabalho apresentado em evento]Considering the operation of shunt active compensators, such as active power filters, this paper proposes possible compensation strategies by means of the recent formulation of the Conservative Power Theory (CPT). The CPT ...
Paredes, Helmo K. M.; Marafão, Fernando P. ; Terrazas, Thiago M. ; Serni, Paulo J. A. (2009 Brazilian Power Electronics Conference, COBEP2009, 2009) [Trabalho apresentado em evento]This paper presents possible selective current compensation strategies based on the Conservative Power Theory (CPT). This recently proposed theory, introduces the concept of complex power conservation under non-sinusoidal ...
Marafão, Fernando P. ; Brandão, Danilo I. ; Paredes, Helmo K. Morales; Da Silva, Luiz C.P. (Proceedings of the 2010 10th Conference-Seminar International School on Nonsinusoidal Currents and Compensation, ISNCC 2010, 2010) [Trabalho apresentado em evento]Considering the Conservative Power Theory (CPT), this paper proposes some novel compensation strategies for shunt passive or active devices. The CPT current decompositions result in several current terms, which are associated ...