Abstract
This paper presents the solution for Optimal Reactive Power Dispatch problem(ORPD) using Gravitational Search Algorithm(GSA). ORPD is a Multi-Objective Optimization Problem which consists of the following objectives: Minimization of real power loss, Minimization of total voltage deviation and Minimization of voltage stability indicator. The Proposed GSA Algorithm is used to find the optimal settings of control variables such as Generator Voltages, Transformer Tap settings and Reactive power output of Shunt Capacitor. In this study, GSA is tested in an standard IEEE 14 and IEEE 30 bus system with different test cases such as Minimization of Real Power Loss, Minimization of total voltage deviation, Minimization of Voltage Stability Indicator.
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