Optimal Reactive Power Dispatch (ORPD) Using Generalized Differential Evolution Algorithm
Arvindkumar J Bhakta,  Prof. Shabbir H. Ghadiali
Optimal Reactive Power Dispatch (ORPD) is required for power system control and proper operation. ORPD reduces the power system losses and improves the voltage profile, power system security, power transmission capability and overall system operation. The reactive power control variables like generator voltage, transformer tap-settings and switchable VAR sources are adjusted to solve ORPD problem. In this paper, the ORPD problem is solved as nonlinear constrained optimization problem with equality and inequality constraints for minimization of power losses and voltage deviation. The proposed approach employs Matpower Optimization toolbox of Matlab for the optimal setting of ORPD control variables. The Matpower Optimization toolbox has been implemented using generalized differential evolution on a standard IEEE 30-bus system to minimize power losses and voltage deviation. The simulation results of the proposed approach are compared with the results obtained from particle swarm optimization (PSO) based algorithm.
Keywords- Load Flow, Loss Minimization, Voltage Profile Improvement, Reactive power dispatch, Differential Evolution, Penalty function
Cite this Article
Arvindkumar J Bhakta,  Prof. Shabbir H. Ghadiali,   "Optimal Reactive Power Dispatch (ORPD) Using Generalized Differential Evolution Algorithm"
, International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.2, Issue 2, pp.2134-2140, June 2014, Available at :http://www.ijedr.org/papers/IJEDR1402136.pdf