Contents I. Introduction
Power electronics introduced a new era in power systems control. Many control devices are in use which is known as Flexible AC Transmission System i.e. FACTS [1]. Near about Eleven such electronic devices are available [2] which are able to change in a faster and effective way for improvement of power system performance. [3], [4] and [5]. Loop flow is shown in Figure l(a) to represent unwanted power flow at the utilities end formed across at interconnection in closed loop. In such power systems due to such parallel flow power interchange between utilities loads at A and B and effects the whole network and causes problems.
