Transmission Capacity Improvement by Optimal Allocation of TCSC Devices

In power system, for optimal location of FACTS devices, analytical method and Hit & Trial Based Algorithm are used, in this paper. The loadability of the line is found by observing constraints like line loading, bus voltage and voltage angle with doing incremental changes in load and generation. For enhancement of loadability, TCSC is introduced because it having good capabilities for enhancing loadability. The performance of TCSC is verified for each branch except tap-changing transformer branch. The loadability is found without TCSC and after introducing TCSC in every branch (one line at a time), for the system. For all probable locations of IEEE-14 bus system, the performance of TCSC is analyzed by analytical method. Results are verified by MATPOWER on IEEE-14 bus system.