Implementation of Thyristor Control Series Capacitor (TCSC) for Power Flow Enhancement in Matlab /Simulink

Muhammad Zohaibkhattak, Muhammad Iftikhar Khan

Abstract: This paper presents the case study for power flow enhancement. The Scenario is, 132Kv DI Khan grid station have three transmission lines on which it takes power from the two power houses. The circuits named here as circuit 1, 2 and 3. Two circuits (1 and 2) from KAPCO side while the other circuit 3 from Chashma hydel power station. The load on circuit 1 and circuit 2 is usually less as compared with circuit of chashma side due to the circuit lengths. The power flow on circuit 1 & 2 is enhanced with the help of device known as Thyristor Control Series Capacitor (TCSC). TCSC is a series connected family member of Flexible AC Transmission System (FACTS. The benefits of TCSC includes power flow control, damp out power oscillations, mitigate subsyncronous resonance etc. The complete system is modeled in matlab/ Simulink.

Keywords: FACTS, TCSC device, Resonance Point, Simulink Model