1991 Volume 111 Issue 3 Pages 285-294
Electric power systems are expanding in size and complexity, and the requirement for energy management system (EMS) is becoming more important. In this computer control system, a single control computer is mainly used as the primary computer and its software is very complicated because of its huge number of small, quick tasks to obtain high response speed. Therefore, much effort is needed to develop and modify the programs, and the responsiveness of this centralized architecture varies greatly when many faults take place in the power system.
This paper describes a new distributed architecture for the EMS. Distributed processors execute the functions cooperatively with periodical access to the common bulletin board database in which information about the power system exists. This architecture facilitates the software development and maintenance, and it also enhances the performance by the parallel processing of the distributed functions.