TCSC control for longitudinal network

This paper proposes a new TCSC control scheme for integrated power systems realizing many number of TCSC in complex power systems. The proposed method is based on pseudo inverse, DC power flow, and linear quadratic control (LQR) methodology. DC power flow equation is usually used to make a relationship between power flows and phase angles but this is applied to relate the state variables and local power flows observed at the bus where the TCSC is installed. This method is capable for both of radial and loop system. A 3-machine 9-bus longitudinal system is employed to show the design procedure, and the effectiveness is discussed through stability analysis.