Optimizing deregulated power systems: Facts devices for congestion alleviation and cost reduction

Abstract

The shift towards deregulation in modern power systems has sparked intense competition within energy markets, leading to a surge in system congestion. This surge not only jeopardizes the reliability and security of the system but also escalates energy costs. To tackle this challenge, an effective approach involves adjusting generator schedules, albeit at a higher expense. However, the emergence of sophisticated power electronic devices, such as Flexible AC Transmission System (FACTS) devices, presents a promising avenue to mitigate the necessity for generator rescheduling. These FACTS devices play a pivotal role in optimizing the overall power distribution by curbing power losses. This study delves into leveraging FACTS devices to cut down on generation costs by tackling congestion in deregulated power systems. Specifically, we strategically integrate Static Var Compensators (SVC) and Thyristor-Controlled Series Compensators (TCSC) to alleviate overloading. To pinpoint the optimal locations and fine-tune parameters for these FACTS devices, we propose employing the JAYA Optimization algorithm. This approach is geared towards enhancing the efficacy of these devices in managing system congestion.