Abstract
Voltage stability assessment plays an important role in planning and operation of secured power system economically. In this paper an effective algorithm based on Artificial Bee Colony approach is developed to solve reactive power control problem for the improvement of voltage in all load buses. This algorithm employs optimal settings of control variables to achieve best solution for the objective functions. The proposed formulation is examined in standard IEEE 30 bus test system with the objective function of real power loss minimization as well as minimization of voltage stability index for the improvement of voltage stability. The test results are compared with the existing approach explained in the literature. From the test results it is absorbed that the voltage stability is improved satisfactorily.
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