Continuity of supply assessment in electric distribution systems with distributed generation

The proper evaluation of the distribution systems behavior is a particularly difficult task, due to the complexity of the distribution system response to failures. The issues concerning system islanding, which have a major impact on reliability results, are overviewed and included in the overall reliability model. Results of reliability analysis are shown on a test system by computing the probability density function of reliability indices, by using a fast and efficient technique based on the characteristic functions.