Implementation of 3-Phase 3-Wire Active Power Filter with an Instantaneous PSD based p-q theory

순시 PSD기반의 p-q이론을 사용한 3상 3선 능동전력필터 시스템 구현

This paper describes the implementation of 3-phase 3-wire active power filter system with a instantaneous PSD for distorted and unbalanced power conditions. The positive sequence voltage of the distorted and the unbalanced power system Is calculated by the instantaneous PSD, and phase transformation matrix of the instantaneous power theory is achieved with detected positive sequence voltage. Finally, the proposed method is experimented and tested under unbalanced nonlinear load as well as unbalanced/distorted condition in power system.