Optimal placement of interline power flow controller IPFC a hybrid multiobjective approach

Abstract

There is a huge increase in power transaction due to power system renovation and different factors such as environment, right-of-way and high cost, which forms hurdle in the expansion of power transmission network. In this power system the control of voltage and reactive power is the major issue, as different strategies are evolves with this transmission system. Hence proper selection and coordination of equipment for controlling reactive power has become a major challenge of power system. With the advancement in flexible AC transmission system, several innovative concepts are turning the system into more flexible and are having control over power flow without altering the generation schedule. Flexible AC Transmission systems (FACTS), is based on power electronics and other stationary tools, which control one or more parameters of AC transmission system thereby increasing the power transfer capability and controllability. In order to cover the additional requirement for reactive power and to control voltage stability within the target range, various sources of reactive power compensators are introduced. The combined power compensators such as unified power flow controller and Interline Power Flow Controllers (IPFC) are the most powerful, highly flexible and versatile FACTS devices. They can control both the active and reactive power flows in the line independently. IPFC consists of multiple, Voltage Source switching Converters (VSC) with a common DC link, which provides the capability to control the power flow in multiple transmission lines hence IPFC is mostly preferred in power system applications. newline newline newline