| Summary: | The system approach to the problem of preventive maintenance scheduling for
thermal units in a large scale electric power system is considered in this
paper. The maintenance scheduling program determines a set of thermal units
maintenance switch off for a time period of one year. This paper considers
the application of dynamic programming and successive approximations method
in determination of annual thermal unit maintenance schedules. The objective
function is multiple component and consists of system operation costs and
system reliability indices (loss-of-load-probability and expected unserved
energy). The evaluation of these costs is performed through a simulation
method which uses a cumulant load model. The software package, developed in
FORTRAN and integrated with an ORACLE data base, produces many useful
outputs.
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