Increasing the hosting capacity of distribution networks by curtailment of renewable energy resources

Abstract

This paper applies the hosting-capacity method to a realistic distribution system. Under given circumstances the hosting capacity for Distributed Energy Resources (DER) identifies the degree of DER in power grid that can be accepted without endangering the reliability or quality of power. In this case study two limits setting the hosting capacity were evaluated: overvoltage and overcurrent. Finally it is examined to what extent the hosting capacity can be increased with use of real-time information and calculation of dynamic performance indications that govern the hosting capacity. It is shown that there is significant potential for increasing the hosting capacity without having to build new lines.