Based on hybrid algorithm of distributed power islanding detection

Abstract

Micro-grid is being developed as a building block for the future of smart grid systems. Islanding detection is a big challenge, the connection of distributed generation (DG) in the power system. Islanding detection method is divided into three groups based on the method of communication, active and passive methods. Method-based communication tools are built on communication and DGS there are restrictions on the use of expensive and inconvenient. A proactive system interference, system interference analysis. This paper proposes a method of using a voltage imbalance islanding detection method (VU) and high frequency (HF) impedance. The proposed method combines the advantages of active and passive technologies. Further, since the active methods used, the paper does not change any system variable as an interference, it does not cause any instability.