A network application package with a centralized topology engine

The efficiency of sparse matrix and vector methods in calculating the state of electrical networks is beyond dispute. Kussel et al. (1996) have shown that extended use of sparse matrix methods sets new standards of efficiency in determining the topological state of an electrical network. Due to the fact that the main data structure used by the new topology method already contains all items to build up the Jacobean, the complete sequence of an online network calculation like load flow or state estimation has been abridged drastically. Such methods are capable of updating network data structures and performing a load flow calculation even for large EMS, very large DMS-networks or a mix of both in a few seconds. On this basis the authors have developed a network application package with a centralized topology engine which has been implemented in an advanced DMS system.