ALGORITHM FOR EXPANSION PLANNING IN DISTRIBUTION-SYSTEMS TAKING FAULTS INTO CONSIDERATION

This paper presents a solution algorithm for expansion planning in dis tribution systems in which fault cases are taken into consideration. T he proposed method can take all the predetermined severe fault cases i nto consideration simultaneously, and can avoid installing excess faci lities without affecting the ability for fault restoration. In the alg orithm, the whole problem is decomposed into sub-problems according to pre-determined fault cases, and is efficiently solved by using the br anch exchange algorithm and the decomposition-coordination technique. The validity and the effectiveness of the proposed algorithm are demon strated by numerical examples.