Reduction of current ripples due to current measurement errors in a Doubly Fed Induction Generator

This paper is concerned with the current ripples which originate from the current measurement errors of a doubly-fed induction generator (DFIG). In this paper, a new compensation algorithm of the current measurement errors is proposed. The main concept of the proposed algorithm is implemented by integrating 3-phase rotor currents in the stationary reference frame to compensate the measured current ripples in DFIG (Doubly Fed Induction Generator). This algorithm has several features: easy implementation, less computation time, and robustness with regard to the variation of the electrical parameters. The experiment results show the effectiveness of the proposed algorithm.