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基于模糊综合评判的220kV变压器状态评估策略
供稿: 王福忠;王海领 时间: 2018-11-26 次数:

作者:王福忠;王海领

作者单位:河南理工大学电气工程与自动化学院

摘要:为了解决220 kV油浸式变压器的维修不足和维修盲目等问题,提高变压器状态评估的准确性,提出了一种基于模糊理论的评估策略.通过采用降半梯形模型和模糊综合评判对变压器各种状态参数的转换和评估来确定变压器的运行状态,将运行状态分为优秀、良好、中等、待检、速检5个等级,并针对每个等级给出相应的维修策略.实验分析表明,该方法对变压器安全运行状态的评估准确性更科学.

基金:河南省科技计划项目(094300510015);

关键词:变压器;状态评估;模糊综合评判;降半梯形模型;

DOI:10.16186/j.cnki.1673-9787.2014.03.026

分类号:TM406

Abstract:In order to solve the problems of 220 kV oil-immersed transformer repair deficiency and blind repair, and to improve the accuracy of the transformer condition assessment, we put forward a strategy based on the theory of fuzzy evaluation.By using a step-down trapezoid model and fuzzy theory converting various states of transformer parameters and evaluation to determine the running state of transformer, the running state of operating can be divided into an excellent, a good, and an average rate, so as to be waited for inspection, speed detection, and to determine the corresponding maintenance strategy for each level.The experimental analysis shows that the method for the safe operation of the transformer condition assessment of reliability is higher and more accurate.

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