Islanding Detection using Time Domain Information of Type-IV Wind Integrated System

In this study, a local-end time-domain information based passive islanding detection technique is proposed for wind penetrated microgrid system. The proposed integrated method utilizes the information of dc-link voltage and response of chopper protection circuit at dc-link and dq-axis voltage response of the grid side controller (GSC) of the wind turbine. The performance of the proposed method is evaluated for various critical islanding and non-islanding scenarios including low power mismatch conditions, short circuit scenarios and non-linear load switching. The conclusion is drawn based on the obtained results from the various tested conditions on the simulated model and it demonstrates that the proposed technique provides reliability and faster detection of islanding condition i.e., within quarter cycle time period.