Strategic Placement and Sizing of Unified Power Flow Controller using Multiple Indices and Flower pollination Algorithm for Contingency Management of Deregulated Power Systems

In the present scenario, the demand for electrical power is increasing which initiates the need to increase power generation. However in view of the limited Resources available it is required to develop efficient systems with less cost. Optimal reallocation of generators and implementation of FACTS devices have been found to be very effective in this regard. In this paper, a strategy of optimal tuning of generators using Flower pollination algorithm in the presence of UPFC for contingency management has been proposed. The UPFC has been placed on the basis of an index which is a combination of L-index and LUF index. A multi objective function has been chosen for tuning the generators. The multi-objective function consists of voltage deviation, active power generation cost and transmission line loss. The proposed method has been tested and implemented on an IEEE 30 bus system for n-1 contingency condition. The p FPA on IEEE 30 bus system without UPFC and with UPFC are compared. Similar analysis has been done without and with contingency conditions.