Patent Document ID: 20150302332
Application ID: 14648249
Patent Flag: 0

Claim One:
1. A maintenance schedule optimization method for an electric power system including large-scale wind power characterized by building an objective function, which is: 
 C Km =C m −L m.max −R Rm −R Sm , minimum wind curtailment electric quantity of wind power in a common year is: min { E WMQ | min { 1 12 ∑ m = 1 12 [ C Km - 1 12 ∑ m = 1 12 C Km ] 2 } } ; wherein: C Km is spare capacity of the electric power system of the m month in the common year; C m is available generating capacity of the electric power system after deducting unit maintenance capacity of the m month in the common year; L m.max is the maximum load of the electric power system on maximum load day of the m month in the common year; R Rm and R Sm refer to spinning reserve capacity and shutdown reserve capacity of the electric power system of the m month in the common year; E WMQ is unused electric quantity of wind turbine maintenance; in order to obtain optimal results, constrains conditions are imposed to the objective function, the constraint conditions comprise: constrain according to maintenance natural environment; constrain according to maintenance time of the wind power plant; constrain according to maintenance site of the wind power plant; constrain according to system reliability at the wind power plant; constrain according to maintenance continuity of generator units; under the above constraint conditions, modelling the electric power system with heuristic algorithm according to the objective function.