Coot bird behavior-based optimization algorithm for optimal placement of thyristor controlled series compensator devices in transmission power networks

Anotace: This study presents the application of Coot bird behavior-based optimization algorithm (COOTBA) for optimal placement of Thyristor Controlled Series Compensator (TCSC) devices in an IEEE 30-node transmission power network with three single objectives, including fuel cost, power loss, and voltage deviation. COOTBA proves that TCSC is very useful for the power system to reduce cost and loss and improve the voltage of loads. COOTBA is implemented for the system with one case without TCSC devices and three others with TCSC. The results from the second case, only optimization of TCSC’s reactance, have better cost and voltage but worse voltage stability than the first case without TCSC devices. For the third case, with optimization of both location and reactance of TCSC devices, the cost, loss, and voltage are better than in the first case but worse than in the fourth case. The third case limits the maximum reactance of TCSC within 0 and 0.02 pu, while the fourth case expands the range. The comparisons of results from COOTBA indicate that TCSC should be optimized for both location and reactance, and the limitation of TCSC devices should be high enough. In addition, COOTBA is also compared and superior to about fifteen other previous algorithms, including original, improved, and hybrid metaheuristic algorithms. Thus, COOTBA is an effective algorithm for optimizing TCSC devices on transmission power systems.