Validation of Modified BFOA for Optimal Location and Sizing of SVC to improve Power System Security

摘要

The growing in power demand has made the necessity of innovating novel methods to operate large interconnected power systems. This reflects more complexity and therefore less secure than before. Hence, the modern power systems are more adaptable to various failures. One family of the device that has enhanced the safe and reliable operation of the network and has contributed to capacity augmentation is FACTS. But, they are very expensive and must be suitably sized and located to maximize the overall benefit to the system. This work aims to determine the exact optimal location and size of the Static Var Compensator (SVC) by optimizing the multi-objective function, formulated by different factors that define the system security, namely Voltage Deviation, System Overload and Real Power Losses. The multi-objective optimization function has been optimized using a Modified Bacterial Foraging Optimization Algorithm (MBFOA). The results are analysed and compared for an IEEE 30 bus test system and the Indian Utility Neyveli Thermal Power Station (IU-NTPS) 23 bus practical system.