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Analyzing The Effect Of Practical Constraints On Optimal Power Flow In The Presence Of Optimal Unified Power Flow Controller


  • Associate professor, EEE Department, Prakasam engineering college, Kandukur, A.P., 523105, India
  • Professor, EEE Department, University college of engineering, JNTUK, Kakinada, A.P, India


Objectives: In this paper, a multi objective function is formulated by combining Convex Fuel Cost (CFC) and Total Power Losses (TPL). Multi objective problem has been solved with proposed IKGMO to enhance the security of the power system by minimizing TPL with CFC. Methods/Statistical Analysis: Current injections based model of Optimal Unified Power Flow Controller (OUPFC) is developed to solve optimal power flow problem with and without considering the effect of operational and practical constraints, a hybrid algorithm has been developed known as kinetic gas molecules optimization Improved Kinetic Gas Molecules Optimization (IKGMO). Findings: The comprehensive procedure is described to solve optimization problem with OUPFC while satisfying practical constraints and operational with device limits. Standard IEEE-30 bus and IEEE-57 bus test systems were tested with proposed method and verified with supporting numerical and graphical results. Application/Improvements: Convergence characteristics for the objectives minimization which conveys that the solution is converged with in lesser number of iterations using proposed method than existing methods shown in the literature.


Current Based Model, IKGMO, OUPFC, POZ limits, Ramp-rate limits, Spinning Reserve Constraints.

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