摘要

This letter proposes a novel phase-angle measurement algorithm through establishing a mathematical model of virtual alpha beta stationary coordinate that utilizes two expression forms of a positive-sequence component in two axes stationary reference frame. This method could greatly eliminate the sinusoidal error of the conventional discrete Fourier transform (DFT) algorithm. The accuracy and performance of the proposed algorithm are proved by relevant simulation results.

  • 出版日期2012-10
  • 单位重庆大学; 输配电装备及系统安全与新技术国家重点实验室