Quarterly power transmission and transformation integrated maintenance optimization method based on genetic algorithm

Abstract

The invention discloses a quarterly power transmission and transformation integrated maintenance optimization method based on a genetic algorithm, belongs to the field of optimal operation of power systems, and solves the problems of high and unreasonable workload, and the like of a maintenance mode of a power grid. The method comprises the following steps: determining flow sequences of the power grid during the target time period according to quarterly load prediction of the power grid, startup mode arrangement and topological data of the power grid; determining flow sequences of the power grid in a maintenance mode; setting a fault set; checking whether system flow in the maintenance mode meets the thermal stability requirements or not, and working out overload quantity of an overload element; creating a quarterly power transmission and transformation integrated maintenance optimization function of the power grid, and substituting the overload quantity of the element into the function for solving; updating a maintenance mode group by the genetic algorithm, and recombining the flow sequences of the power grid in the maintenance mode; performing loop iteration and calculation to obtain an optimal quarterly power transmission and transformation integrated maintenance scheme of the power grid. Therefore, the working efficiency of power grid operation personnel is improved, the obtained maintenance scheme of the power grid is reasonable and reliable, and the social and economic benefits are remarkable.

Description

technical field [0001] The invention belongs to the field of power system optimization operation, in particular to an optimization method for quarterly power transmission and transformation integrated maintenance and maintenance based on genetic algorithm. Background technique [0002] In the field of power system dispatching and operation, power system equipment maintenance is an important basis for ensuring the safe and stable operation of the power grid. The arrangement of the grid maintenance plan at the present stage is carried out in the ultra-short-term planning. This method carries out the maintenance plan arrangement of the next stage according to the maintenance level and time reported by each grassroots unit. Due to the concise concept and simple principle of this method, it has been widely used in power grids at all levels across the country. However, with the continuous expansion of the scale and complexity of the power system, this method requires a large amou...

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Problems solved by technology

[0005] In order to solve the problem of large workload and unreasonable plan arrangement of the grid quarterly maintenance method, and overcome the disadvantages of low work efficiency of the traditional way of simply relying on manual calculation to arrange the grid maintenance mode, the present invention proposes a quarterly power transmission and transformation integration based on genetic algorithm The optimization method of maintenance maintenance, through the construction of quarterly power transmission and transformation integrated maintenance willingness function, continuous iteration and calculation, finally obtains the optimal power grid maintenance plan, which greatly improves the work efficiency on the basis of ensuring optimality. In the actual power grid It has great prospects for promotion and application in

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