Reliability Evaluation of Composite System with Aging Failure

Reliability is concerned with the system capability of survival. In the past forty years, customer expectations have been increasing in response to evolving new technologies. As part of these evolutions, they are demanding from their suppliers: products with higher quality, low initial cost, improved customer support and products that are easy and inexpensive to maintain. For a supplier to survive, succeed and be profitable in today’s market, It must do the following: a) Constant improvement in the quality of the products. b) Minimization of the cost. c) Be flexible and responsive to the customer’s requirement. This deals with reliability evaluation of combined generation and transmission system known as composite system. It describes a technique and a program to calculate composite system reliability with aging failure and its indices by applying it on a system. Composite system reliability is achieving considerable attention these days as utilities are finding it increasingly necessary to quantitatively evaluate individual busbar and overall system indices. In this research work following reliabilities has been calculated and evaluated for a system:  Generation system reliability  Transmission system reliability  Composite system reliability  Composite system reliability indices I. PROBLEM FORMULATION he RBTS is a 6 bus system composed of two generator buses, 5 load buses, 9 transmission lines and 11 generating units. The total installed capacity is 240 MW and the system peak load is 185 MW. Fig1: Single Line Diagram of RBTS system