Optimal Location of Statcom for Power Flow Control

Power flow control in a long transmission line plays a vital role in electrical power system. This paper uses the shunt connected STATCOM for the control of voltage and power flow. The proposed device is used in different locations such as sending end, middle and receiving end of the transmission line. The PWM control is used to generate the firing pulses of the controller circuit. Simulation modeling of the system is carried out using MATLAB/SIMULINK. Based on a voltage-source converter, the STATCOM regulates system voltage by absorbing or generating reactive power. This paper deals with a cascaded multilevel converter model, which is a 48-pulse (three levels) GTO converter. The simulation studies are carried for sending end, middle and receiving end of the transmission line. The objective is to define the reactive power generated and voltage control at different locations (at sending end, middle, receiving end) of transmission line using STATCOM.

[1]  K.R. Padiyar,et al.  Design and performance evaluation of subsynchronous damping controller with STATCOM , 2006, IEEE Transactions on Power Delivery.

[2]  P. Ajay-D-Vimalraj,et al.  Optimal location of shunt FACTS devices for power flow control , 2011, 2011 International Conference on Emerging Trends in Electrical and Computer Technology.

[3]  M.L. Crow,et al.  Damping inter-area oscillations in power systems by STATCOMs , 2008, 2008 40th North American Power Symposium.

[4]  Y. L. Tan,et al.  Analysis of line compensation by shunt-connected FACTS controllers: a comparison between SVC and STATCOM , 1999 .

[5]  J.H. Chow,et al.  A Novel Approach for Modeling Voltage-Sourced Converter-Based FACTS Controllers , 2008, IEEE Transactions on Power Delivery.

[6]  P.W. Lehn,et al.  The hybrid power flow controller - a new concept for flexible AC transmission , 2006, 2006 IEEE Power Engineering Society General Meeting.

[7]  C.B. Shankaralingappa,et al.  FACTS Controllers to Improve Voltage Profile and Enhancement of Line Loadability in EHV Long Transmission Lines , 2008, 2008 Joint International Conference on Power System Technology and IEEE Power India Conference.

[8]  A. G. Kothari,et al.  Optimal location for line compensation by shunt connected FACTS controller , 2003, The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003..

[9]  B.K. Johnson.  How series and combined multiterminal controllers FACTS controllers function in an AC transmission system , 2004, IEEE Power Engineering Society General Meeting, 2004..

[10]  M. Al-Dabbagh,et al.  Applications of FACTS Controller for Improving Power Transmission Capability , 2005, TENCON 2005 - 2005 IEEE Region 10 Conference.