Building a plan for HVDC

Large amounts of study, modeling, and planning are necessary prior to the successful construction and integration of an HVDC facility. Feasibility studies are first conducted to determine the need for network controllability, necessary for ensuring system security, transmitting power over long distances, or interconnecting asynchronous systems. This planning and integration process has produced successful results in three HVDC installations in the northeastern United States, which are discussed in this article. The article also presents several examples of plans for HVDC expansion in the Western interconnection