Interconnection issues for distributed resources in a smart distribution system

The purpose of this paper is to relate the issues which have an impact on the interconnection of distributed resources to the utility grid. Impact that can be clearly seen is with respect to the types of distributed resources and the power electronic (PE) devices used to interface them. A balance has to be maintained between the type of DER´s and the interfaces in order to get the maximum benefit of incorporating Distributed Generation to the grid. Islanding methods which are the means for creating the microgrids and islanding detection methods are a critical feature. These, together with protection and reliability features have been discussed in the paper.