太赫兹科学与电子信息学报, 2018, 16 (1): 153, 网络出版: 2018-07-24  

基于灰靶理论的变压器绝缘状态监测

Insulation status online monitoring of transformer based on grey target theory
作者单位
安康学院电子与信息工程学院,陕西安康 725099
摘要
变压器发生绝缘故障是电力系统事故的主要诱因,要保证变压器在电力系统中的安全运行,对其绝缘状态实施在线监测是非常必要的。变压器在线监测的关键是实现绝缘状态的评估,评估结果受多个内外因素的随机性约束,影响因子多,建模复杂。针对这一问题,本文建立了基于灰靶理论的变压器绝缘状态监测系统,通过计算各项指标对绝缘状态的影响复合权重,从而确保评估结果的合理性。经实验验证,该系统能实现对变压器设备绝缘状态的有效判断,为变压器的检修计划提供重要参考。
Abstract
According to statistics, the insulation fault is one of the most important reasons for electrical equipment, therefore the study of transformer insulating state monitoring has great significance to ensure safe operation of power system. The accuracy of insulation condition assessment is a key issue for online dynamic monitoring the transformer insulation status. The evaluation result is randomly influenced by various internal and external factors, which makes its modeling complex. An online monitoring system of transformer based on grey target theory is proposed. Through improving traditional grey target theory, and calculating the affection of different insulation indexes by weight coefficient method, the rationality of the evaluation result is guaranteed. Experiments show that this method can reasonably and objectively assess transformer insulating state, providing an important reference for maintenance plan of transformer.

王磊. 基于灰靶理论的变压器绝缘状态监测[J]. 太赫兹科学与电子信息学报, 2018, 16(1): 153. WANG Lei. Insulation status online monitoring of transformer based on grey target theory[J]. Journal of terahertz science and electronic information technology, 2018, 16(1): 153.

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