Optimal Reactive Power Dispatch for Voltage Security using JAYA Algorithm

The optimal reactive power dispatch (ORPD) is one of the most critical problems in power system engineering which is solved to minimize power loss and voltage deviation in the system. This helps in obtaining a more economic and secure operation of the system. Here, this complex and non-linear optimization problem has been formulated as a single objective, with two different objectives, which are optimized one at a time. The objectives considered here are the minimizing both the transmission line losses and the total voltage deviation of the system. This problem can be solved by determining the optimal solution of the different control variables by optimizing the objective functions. In this paper, a newly proposed optimization technique named the JAYA algorithm has been used for solving the ORPD problem. The standard test cases considered in this paper for solving the objective functions are IEEE 14 and IEEE 30 bus systems. The results obtained from the simulation were compared with those from different other already developed and widely used optimization techniques. The comparison of the results proved the superiority of the proposed algorithm amongst others.