Power primary equipment fault cause probability distribution analysis method and system

Abstract

The invention relates to a power primary equipment fault cause probability distribution analysis method and system. The method comprises the steps of obtaining frequent items of all elements in a power primary equipment fault analysis data set; determining a strong association relationship set among the elements in the power primary equipment fault analysis data set based on the frequent items ofthe elements; and determining a fault reason probability distribution function of the current fault of the power primary equipment according to the strong association set and the current fault information sequence of the power primary equipment. The invention provides a technical scheme. Multi-dimensional fault association mining is carried out on fault data in the power primary equipment fault analysis data set; the mining results are screened to generate the strong association relationship set between the fault data, and the fault cause causing the current equipment fault is analyzed based on the strong association relationship set, so that the accuracy of pre-judging the fault cause causing the equipment fault is improved, and data support is provided for overhauling of fault equipment.

Description

technical field [0001] The invention relates to the field of power system scheduling control, in particular to a method and system for analyzing the probability distribution of failure causes of power primary equipment. Background technique [0002] Power equipment risk is a common risk type closely related to the safe and stable operation of the power grid, and equipment failure is the most critical risk factor. [0003] During the operation of the power grid, there are electrical couplings and joint operations between multiple types of equipment. The failure of one equipment will directly affect whether other related equipment can work normally, and affect the safe and stable operation of the entire power grid. [0004] For example, when encountering external environmental influences such as typhoons and thunderstorms, there is a potential risk of power equipment failure. [0005] For the current failure of power equipment, operators often judge the cause of the failure o...

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Problems solved by technology

[0003] During the operation of the power grid, there are electrical couplings and joint operations among multiple types of equipment. The failure of one equipment will directly affect whether other related equipment can work normally, affecting the safe and stable operation of the entire power grid.

[0004] For example, when encountering external environmental influences such as typhoons and thunderstorms, there is a potential risk of power equipment failure

[0005] For the current failure of power equipment, operators often judge the cause of the failure of the current equipment based on experience, and repair the faulty equipment based on this, but this method has great uncertainty, and the time and energy spent on maintenance often very large

[0006] At present, there is no related technology that can accurately judge the cause of primary power equipment failure by using scientific means.

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