Journal Press India^®

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With the increase in development of power networks, the economical operation of power system has become a concern. The maximum capability of power systems can be exploited by means of FACTS devices. Currently, development of power electronics switches causes reduction in the cost of FACTS and therefore application of FACTS devices especially in distribution networks is more economical. But economic considerations limit the installation of FACTS controller in all of the buses or the lines. There are several methods for finding optimal locations of FACTS devices in power systems. In this paper power flow analysis using Newton Raphson method has been proposed to determine optimal location of Thyristor Controlled Series Compensator (TCSC) in a system. The paper concentrates on the development of the power flow software package using MATLAB and the steady-state modeling of the series FACTS devices TCSC. The configuration of a typical TCSC from a steady-state perspective is the fixed capacitor with a thyristor controlled reactor (TCR). The effect of TCSC on the network can be modeled as a controllable reactance inserted in the related transmission line. The TCSC modeling equations illustrate how the flexibility of the software environment in use allows the easy combination of different objective functions, different sets of variables and different formulations of functions. Case studies demonstrate the operating regions of the series FACTS devices and their effectiveness in increasing the MW power transferability of a particular network.

Keywords

Thyristor controlled Series capacitor, FACTS devices, Newton Raphson method, Power Flow analysis etc.

1. Abdel Moamem MA, Narayana Prasad Padhy. Newton Raphson TCSC Model For Power Flow Solution of Practical Power Networks


2. Abdel Moamen M K & Naryana Prasad Padhy. Multi Objective Optimal Power Flow Model with TCSC for Practical Power Networks –Thyristor Controlled Series Compensator Model for Power Flow Solution of Practical Power Network – CR Fuerte Esquivel, Acha & H. Ambriz Peraz. IEEE transactions on Power Systems, l. 15( 1), 2000.


3. NG Hingorani, Laszlo Gyugy. Understanding Facts Concepts and Technology of Flexible AC Transmission System– IEEE press.


4. CR.Fuerte Esquivel, E.Acha. A Newton Type Algorithm for The Control of Power Flow in Electrical Power Network-IEEE transactions on Power System, 12(4), 1997.


5. Ramesh Bahri, K.R. Suri, Rajesh Kumar, Rajil Srivastava. Flexible AC Transmission System - A Case Study –Using Facts Controllers to Maximize Available Transfer Capability Bank Power Systems Dynamics and Control - Claudio A. Canizares, Alberto Berizzi, and Paolo Marannino IV. Restructuring, August 24-28, 1998, Santorini, Greece.


6. Reactance Power Management – D.M. Tagare, Tata Mcgraw- Hill Publication copyright 2004.


7. Sujatha Subhash, A.K. Tripathy, KR Padiyar, Satish Nayyar, Manoj Kumar, PJ Thakkar and KK Arya. SSR Study for the Thyristor Controlled


8. Series Compensation Application on the Kanpur-Ballabgarh 400KV in Dudina.


9. WG Stagg, Ahmed Albiad. Computer Methods and Power System Analysis.