Meeting Power Challenges with TCSC and Next Generation TCSC: SPLIT TCSC


Niharika Agrawal
Faheem Ahmed Khan
Mamatha Mahesh Gowda


The electricity demand is continuously increasing due to population growth and development. There is a lack of generation and transmission facilities, so the existing system is used to transfer more power to meet the rising power demand. This causes overexploitation of the present power system and gives rise to stability problems. The power transfer capacity of the existing transmission lines can be increased by using fixed capacitors by varying the impedance of the transmission lines, but they have associated SSR problems. In this situation FACTS devices TCSC are used to control power flow in the system. TCSC mitigate power oscillation, stability problems and various power quality problems like voltage sag and voltage swell created due to disturbances or faults. In the proposed work the TCSC is used to increase the power flow capacity of the system without the need for investment in new lines and systems. The active power transfer with different controllers is discussed. The two modules of TCSC with different ratings are taken and analysed. Then there are some problems in ordinary TCSC too. On tuning the ordinary TCSC in the critical region of the reactance characteristic curve there is observed a large gap of reactance at both the inductive and capacitive critical regions. Because of the large elapse/gap of reactance in this region small change of power demand is not possible in the power system which reduces the flexibility of the power system, and it becomes rigid. These challenges of ordinary TCSC are met here by the next generation device of TCSC: Split TCSC in the power system. Split TCSC tunes the critical region reactance with many firing points and hence elapse of reactance is very small which allows for fine tuning of power flow over the transmission line thus mitigating the problems of ordinary TCSC. Split TCSC includes all the other benefits of ordinary TCSC such as increased power flow, stability improvement, damping oscillations, and mitigating SSR as it belongs to the family of TCSC. Thus, in the proposed work the power challenges are met using TCSC and Split TCSC.


How to Cite
Agrawal, N. ., Khan, F. A. ., & Gowda, M. M. . (2024). Meeting Power Challenges with TCSC and Next Generation TCSC: SPLIT TCSC. Power Research - A Journal of CPRI, 19(2), 195–207.


  1. Mehta S, Prakash S. Performance evaluation of FACTS controllers for short transmission line. International Journal of Applied Engineering Research. 2018; 13(7): 5140-53.
  2. Akter S, Saha A, Das P. Modelling, simulation, and comparison of various facts devices in power system. International Journal of Engineering Research and Technology (IJERT). 2012; 1(8):1-12.
  3. Sankar S, Balaji S, Arul S. Simulation and comparison of various FACTS devices in power system. International Journal of Engineering Science and Technology. 2010; 2(4):538-47.
  4. Nayeripour M and Mahdi MM. Analyze real switching angle limits in TCSC on capacitor and inductor values and their selection factors. International Journal of Advanced Science and Technology. 2013; 57:25-36.
  5. Hitendrasinh CC, Makwana V. Thyristor controlled series capacitor: Simulation and analysis. International Journal of Advance Engineering and Research Development. 2015; 2(5):796-806.
  6. Patel M, Brahmbhatt A. Design and simulation of series compensator for enhancement on ATC. International Journal of Advance Engineering and Research Development. 2016; 3(5):619-26.
  7. Agarwal A, Kumar D. Application of thyristor-controlled series compensator in power systems. International Research Journal of Engineering and Technology. 2020; 7(6):2025-30.
  8. Meikandasivam S, Nema RK, Jain SK. Microtuning of reactance by split TCSC on the transmission line. International Journal on Power and Energy Conversion 2010; 2(2): 95-108.
  9. Prudhviraj GVT, Meikandasivam RS, Vijayakumar D. Implementing TCSC device in Kalpakam-Khammam line for power flow enhancement. International Conference on Circuits, Power and Computing Technologies. 2013; 138- 41.
  10. Bhatkar SA, Rahane AD, Dhawale RS, Sawarkar SN, Chavan NR. Simulation of harmonics filters to reduce harmonics distortion using MATLAB. National Conference Recent Innovations in Science and Engineering. 2017; 5(9):27-31.
  11. Patel R, Bhatti TS, Kothari DP. MATLAB/Simulink-based transient stability analysis of a multimachine Power System. International Journal of Electrical Engineering Education. 2002; 39(4):320-36.
  12. Saini MK, Yadav NK, Mehra N. Transient stability analysis of multimachine power system with FACTS devices using MATLAB/Simulink environment. 2013; 16(1):46-50.
  13. Singh S, Kumar P, Ram A. Modelling, and analysis of thyristor-controlled series capacitor using MATLAB/ Simulink. International Journal of New Innovations in Engineering and Technology (IJNIET). 2013; 1(3):61-6.
  14. Jovcic D, Pillai GN. Analytical modelling of TCDC dynamics. IEEE Transactions on Power Delivery. 2005; 20(2):1097- 104.
  15. Patel N, Bhatt C, Modi S. Influence of TCSC in an interconnected power systems modelling, analysis and interfacing. Technical Research Organisation India. 2016; 2(3):26-30.