Title :
A study on optimal reliability indices in an electrical distribution system
Author :
Wu, Yu-Chi ; Chang, Wei-Fu
Author_Institution :
Nat. Lien-Ho Inst. of Technol., Taiwan, China
Abstract :
In this paper, the optimal values of reliability indices in an electrical distribution system and their impact to planning are studied. By formulating the interruption cost, initial investment cost and modification cost in terms of component reliability indices, an optimization problem is derived while considering feeder capacity limits, resulting in a large-scale problem. To solve this nonlinear large-scale problem, an effective polynomial-time algorithm is used. The numerical test shows that not only significant savings can be achieved, but information on identifying value-saving feeder/components can be revealed as well. This is a valuable tool to distribution planning/operations
Keywords :
costing; nonlinear programming; polynomials; power distribution economics; power distribution planning; power distribution reliability; component reliability indices; electrical distribution system; feeder capacity limits; initial investment cost; interruption cost; large-scale problem; modification cost; nonlinear large-scale problem; optimal reliability indices; optimization problem; polynomial-time algorithm; value-saving feeder/components; Cost function; Investments; Large-scale systems; Maintenance; Polynomials; Power industry; Power system reliability; Technology planning; Testing; Utility programs;
Conference_Titel :
Power System Technology, 2000. Proceedings. PowerCon 2000. International Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-6338-8
DOI :
10.1109/ICPST.2000.897112
