Investigation of spinning reserve impact on isolated systems DC interconnection feasibility

Abstract

This paper investigates the optimal size of a potential DC interconnection between an isolated island system and the mainland grid. Adequate spinning reserve is perhaps the most prominent security requirement in isolated systems. Thus this paper focuses specifically on how the optimal interconnection solution is affected by spinning reserve (SR) requirements and cost. A Monte-Carlo based probabilistic load flow is used to assess the benefits of each interconnection scenario. Indicative results are presented regarding a possible submarine interconnection of the Greek island of Crete with the mainland grid.

Adaptive enumeration method for the optimal interconnection planning of isolated power systems

“…Second, the impact of an interconnection on the isolated system operation can be significant. Security considerations, mainly related to system reserve [1], will unavoidably affect the final benefits derived from any investment and have to be taken into account. The existing literature in the area of power system planning, and particularly transmission expansion, is extensive.…”