The Interline Power Flow Controller: Further aspects related to its operation and main limitations

The IPFC (interline power flow controller) is among the FACTS devices aimed at simultaneously controlling the power flow in multiline systems. This paper presents the IPFC main features and limitations whilst controlling the power flow. In order to observe these advantages and disadvantages, a mathematical model based on the d-q orthogonal coordinates was developed. Issues like the relationship between the transmission angle and the IPFC controlled region as well as the converters operative region in steady-state will also be presented.