A New Unified Analysis of Filters Accompanied with Vector Rotaters for Three-Phase Signal Processing

Abstract

This paper newly presents a unified analysis of a set of two filters that are accompanied with two vector rotaters. The filters can make distinction between positive and negative frequencies of three-phase signals and can allow us to process the signals based on frequency polarity. Such attractive feature can never be obtained from standard filters. The presented analysis is unified and plain, and its result is general and simple so that it can be applied to a variety of filtering applications.