Anti-islanding detection for renewable energy systems in distribution system
Integration of renewable energy systems into grid is an effective solution to the electric energy shortage and environmental pollution. A number of technical challenges may arise with increased grid-connected renewable energy systems. One of the most important issues is how to achieve the islanding protection. Many anti-islanding detection methods have been reported for single renewable energy systems in the last decades. In practice, however, the multi-unit systems are distributed in different feeders. Consequently, all of the existing methods might fail in this case. Failure of antiislanding detection will degrade system reliability and even pose a safety risk to utility workers and the general public. Therefore, the objective of the project is to develop an effective anti-islanding detection strategy for the multiple grid-connected renewable energy systems. The results of this study will be beneficial for Hydro One Network to achieve the reliable anti-islanding protection for multiple inverters in distributed grid.