Static Voltage Stability And Economic Operation In Electric Power System

This paper proposes a method for multi-object reactive optimization taking voltage stability into account based on tabu algorithm. At first, voltage collapse point is traced by improved continuation power-flow method under the premise that load increasing pattern is given, the distance away from collapse point which can be regarded as margin index can be got in the meanwhile, then the two objective--margin index and transmission loss are converted into single objective by adopting fuzzy set theory, improved tabu algorithm is used for optimizing this single objective at last in order to make system can be operated in security and economy under conditions. the advantage of this method is validated on IEEE14 bus system.