This paper presents an enhanced expert system for line flow control in
power systems. The preventive mode dealing with both pre-contingency
and post-contingency constraints is considered in this enhanced expert
system. The presented expert system is achieved through integration o
f an existing expert system and the fuzzy set theory. The IEEE 30-bus
system and a practical 265-bus system in Taiwan are used to serve as s
amples to show the applicability of the proposed expert system in this
paper. (C) 1996 Elsevier Science S.A.