Optimal Placement of Thyristor Controlled Series Capacitor to Reduce the Transmission Loss

In the present day world power system deregulation is at its full stretch. In this deregulated environment ensuring that the power system operates with in its specified limits, which have been traditionally referred to as power system security is the most concerned aspect, which is currently being given at most importance. The term reliability depends on transmission loss. Maintaining the security and reliability is vital. Failures can result in widespread blackouts with potentially severe social and economic problems. Facts devices such as thyristor controlled series compensators and thyristor controlled phase angle regulators, by controlling the power flows in the network, can help to reduce the flows in heavily loaded lines resulting in an increased load ability of the network and reduced cost of production .This paper presents the development of simple and efficient models for optimal location of facts devices that can be used to reduce transmission losses by controlling their parameters optimally.