An instantaneous active and reactive current component method for active filters

V. Soares, P. Verdelho, G.D. Marques

IEEE Transactions on Power Electronics · 2000 · 407 citations · 6 references

Concepts

TL;DR

The paper proposes a shunt active filter using the instantaneous active and reactive current component i_d‑i_q method to compensate harmonics and first harmonic unbalance. The method is implemented as a shunt active filter and its performance is evaluated by comparing it with the instantaneous active and reactive power p‑q method under various mains voltage conditions and different harmonic‑injection high‑pass filters, with system synthesis and implementation carried out. Both methods are frequency‑independent, but the proposed i_d‑i_q filter achieves superior harmonic compensation under distorted mains, as demonstrated by simulation and experimental results.

Abstract

A shunt active filter based on the instantaneous active and reactive current component i/sub d/-i/sub q/ method is proposed. This new control method aims to compensate harmonics and first harmonic unbalance. To evaluate its relative performance, it is compared with the instantaneous active and reactive power p-q method under various mains voltage conditions and for different harmonic injection high-pass filters. Both methods are completely frequency-independent, however under distorted mains voltages the proposed method presents a better harmonic compensation performance. The system synthesis and implementation are performed. Simulation and experimental results are presented.

References

6