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PI architecture functionally distributed system for power network supervisory control
Author(s) -
Kunugi Masahiko,
Yohda Masahiko,
Tamura Shinsuke,
Kishida Yukio,
Hayashi Tatsuo,
Hasegawa Tsuguo
Publication year - 1992
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391120605
Subject(s) - scada , maintainability , supervisory control , reliability (semiconductor) , distributed control system , distributed computing , electric power system , computer science , reliability engineering , architecture , embedded system , control system , distributed generation , control (management) , power (physics) , engineering , electrical engineering , art , physics , quantum mechanics , artificial intelligence , renewable energy , visual arts
In recent years, the sizes of Energy Management Systems (EMS) and Supervisory Control and Data Acquisition (SCADA) systems have grown to huge proportions for two reasons: The power systems to which they are applied have grown in size and complexity; and Their own functions have become more diverse and sophisticated.This raises the following problems: degradation of response time; decreased reliability; limited expandability; less maintainability; and increased costs. A functionally distributed system that is characterized by parallel processing and independent subsystems (parallel‐independent architecture) will solve these problems. The system is comprised of a group of functional units, each of which runs in parallel, independently and asynchronously. Copies of some programs and power system status data are stored in the relevant functional units, and data‐driven architecture is adopted, which eliminates the need for a centralized control mechanism. The feasibility of a functionally distributed system was tested through construction of a prototype. The results were satisfactory.