An Evaluation Method of Distribution Network Health Index

Abstract

The invention relates to a power distribution network health index assessment method comprising the following steps: 1, determining power distribution network health index connotation and purpose; 2, determining a power distribution network health index assessment object; 3, determining a power distribution network health index assessment index system; 4, evaluating a transformer and distribution equipment health index; 5, evaluating the power distribution network health index. In a long term, the reliability research pays more attention on a single device at certain moment, a single section (static state), a fault result, and a cause and effect relation; the novel method provides a colony equipment and network health index assessment method, can study the colony equipment and network dynamic health level and power supply reliability, can guide power distribution network planning and operation unkeep asset management, can provide equipment and network health status quantification analysis, and macroscopic and microscopic are combined to provide base theory and practical technical means.

Description

technical field [0001] The invention relates to a distribution network asset management technology, in particular to a distribution network health index evaluation method. Background technique [0002] With the development of society and economy and the trend of electricity marketization, especially with the formation and implementation of the concept of smart grid in recent years, the management methods of electric power enterprises are gradually formulated around the business objectives of enterprises, and the goals dominated by safety / technology in the past will turn to Comprehensive optimization of safety / technology / performance / economy / environment is the leading factor. At the same time, the complexity, discreteness, dynamics, nonlinearity, multi-objectiveness and uncertainty of the modern distribution network put forward higher requirements for planning; the application range of smart grid status detection is no longer limited to the power grid Equipment monitoring and...

AI Technical Summary

Problems solved by technology

[0005] At present, the concept of health index is still only in the stage of noun concept and single equipment. There is no in-depth research on the definition, connotation and extension of health index, and a set of evaluation methods for power transformation and distribution equipment and network health index has not yet been formed.

Due to the large amount of distribution equipment and the relatively low individual cost, the equipment monitoring and evaluation, condition-based maintenance standards and decision-making methods adopted by the transmission network are not suitable for the distribution network; the current equipment evaluation and condition-based maintenance standards for the distribution network lack theoretical guidance , the evaluation standards and defects are not uniform, the deductions cannot be one-to-one, historical data is not considered, hidden defects cannot be found, the evaluation results cannot truly reflect the actual situation, and evaluation and maintenance cannot be closely combined

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