Transformer substation full-life cycle cost estimation method

Abstract

The invention discloses a transformer substation full-life cycle cost estimation method. According to the method, seven variable quantities including equipment quality, operation and maintenance level, construction level, defect fault rate, transformer substation structure, material recoverability and system environment are subjected to symbolic description based on symbolic dynamics; further, based on a genetic algorithm, assessment is conducted by a Bezier curve, so that not only can cost distribution of a transformer substation construction scheme be analyzed, but also full-life cycle costs for different construction schemes can be compared, and decision support is provided for a preferred scheme. The transformer substation full-life cycle cost estimation method has the advantages that comprehensive optimization of transformer substation full-life cycle cost estimation can be achieved, and schemes of all parts of the full-life cycle costs are optimized quickly based on the Bezier curve, so that convergence speed can be increased.

Description

technical field [0001] The invention relates to a method for estimating the life-cycle cost of a substation, in particular to a method for estimating the life-cycle cost of a substation based on symbolic dynamics and genetic algorithms. Background technique [0002] Substation is a system that directly interacts with users in the power system. Its reliability is very important, and the cost of construction investment is also very high. [0003] The whole life cycle cost theory guides the construction party to consciously and comprehensively start from the whole life cycle of the engineering project, comprehensively consider the construction cost and use cost (operation and maintenance cost) of the project, from multiple feasible plans, according to the life cycle cost Based on the principles of minimization and efficiency maximization, choose the best implementation plan to achieve a more scientific construction design and more reasonable selection of supporting materials an...

AI Technical Summary

Problems solved by technology

[0004] The life cycle cost of a substation is related to its equipment quality, operation and maintenance level, construction level, defect failure rate, substation structure, material recyclability, and system environment. The above data types may include numerical and non-numerical data, and there is no unified data description and unified analysis method; currently, the calculation of substation life cycle cost is mostly based on empirical estimation, and there is no more accurate estimation based on empirical data

Images