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Integrated generation and transmission maintenance scheduling with network constraints

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2 Author(s)
Marwali, M.K.C. ; Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA ; Shahidehpour, S.M.

Most unit maintenance scheduling packages consider preventive maintenance schedule of generating units over a one or two year operational planning period in order to minimize the total operating cost while satisfying system energy requirements and maintenance constraints. In a global maintenance scheduling problem, the authors propose to consider transmission line maintenance scheduling and line capacity limits along with generation and line outages. The inclusion of transmission and network constraints in generating unit maintenance will increase the complexity of the problem, so they propose to decompose the global generator/transmission scheduling problem into a master problem and sub-problems using Benders decomposition. In the first stage, a master problem is solved to determine a solution for maintenance schedule decision variables. In the second stage, sub-problems are solved to minimize operating costs while satisfying the network constraints. Benders cuts based on the solution of the sub-problem are introduced to the master problem for improving the existing solution. The iterative procedure continues until an optimal or near optimal solution is found

Published in:

Power Industry Computer Applications., 1997. 20th International Conference on

Date of Conference:

11-16 May 1997