基于DGA方法的电力变压器绝缘油故障诊断与质量评估智能专家系统

A. R. Hussein, Adel M. Dakhil, J. Rashed, M. F. Othman
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引用次数: 1

摘要

准确的油量评估和电力变压器绝缘的故障诊断是本研究的关键问题。变压器的耐用性在很大程度上取决于绝缘油的质量,绝缘油会因温度波动和水分含量而随着时间的推移而恶化。在实际运行过程中,通过早期准确的故障诊断和有效的油质评估,保护变压器免受潜在故障的影响,可以避免相当大的经济损失。采用智能软件的ANFIS专家系统在其中起着重要的作用。变压器油中溶解气体分析(DGA)对变压器绝缘油的故障诊断和质量评价是可靠的。变压器电厂保护小组经常遭受突然故障,导致巨大的破坏和巨大的经济损失。必须对变压器中的油进行适当处理,以避免此类故障。本研究采用ANFIS专家系统对电力变压器绝缘油的状态和质量进行故障诊断和评定。根据油中DGA的含量,采用罗杰斯比法确定了合适的处理方案。采用MATLAB环境下的图形用户界面进行故障诊断和油品质量评价。该训练算法可以根据IEEE标准C57-104和IEC标准60599的规范对油品质量进行评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Intelligent Expert System for Diagnosing Faults and Assessing Quality of Power Transformer Insulation Oil by DGA Method
Accurate assessment of oil and fault diagnostics of electrical power transformer insulation for lifelong endurance are the key issues addressed in this research. The durability of a transformer is significantly determined by the quality of its insulation oil, which deteriorates over time due to temperature fluctuations and moisture content. Protecting transformers from potential failure through the early and precise diagnosis of faults and efficient assessment of oil quality during the actual conduct of the operation can avoid sizeable economic losses. The ANFIS Expert System that uses intelligent software plays an important role. The dissolved gas analysis (DGA) in oil is reliable for diagnosing faults and assessing insulation oil quality in transformers. Transformer power plant protection teams often suffer sudden breakdowns that lead to massive damage and huge financial losses. The oil in transformers must be appropriately treated to circumvent such failures. In this research, an ANFIS Expert System was used to diagnose faults and assess insulation oil status and quality in power transformers. by the Rogers ratio method depending on the DGA in oil, a suitable treatment was identified. The graphical user interface from the MATLAB environment was used and proven effective for fault diagnosis and oil quality evaluation. The training algorithm can assess oil quality according to the specifications of the IEEE standard C57-104 and the IEC standard 60599.
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