2015年第43卷第5期 2015,Vol.43No.5
陕西电力
SHAANXIELECTRICPOWER
基于博来论和拟态物理学优化算法的
变压器状态评价方法研究
周剑1,王鹏2
（1.国网湖南省电力公司宁乡县供电公司，湖南长沙410600
2.武汉大学电气工程学院，湖北武汉430072）
特别推荐 Featured Focus
摘要：提出一种变压器状态评价的新方法，对提高变压器运行可靠性具有一定的指导意义。首先构建了变压器运行状态的评价指标体系，该体系包括了溶解气体CH4、油介损、绝缘电阻、泄漏电流、吸收比和油中微水等6个评价指标，然后基于变压器在不同运行方式下的运行数据，使用拟态物理学优化算法优化这6个指标的数据，并采用博弃论赋权法确定不同指标的权重值，最终将指标值与权重值进行组合叠加得到变压器运行状态的评价结果。以某市9台大型国产变压器作为仿真案例，基于该案例的实际生产运行数据，算例一验证了拟态物理学算法具有较好的优化效果，能够有效提高收效速度，并得到更好的选代结果；算例二实现了最终的变压器运行状态评价，其中9号变压器运行状态最好，3号变压器运行状态最差，这一结果对将来该市变压器的维护和检修具有重要的指导和借鉴价值。
关键词：博奔论；拟态物理学优化算法；变压器状态评价；评价指标体系
中图分类号：TM411
文献标志码：A
文章编号：1673-7598(2015)050001-05
StudyonConditionEvaluationMethodforPowerTransformersBased
onGameTheoryandArtificialPhysicsOptimizationAlgorithm
ZHOUJian'，WANGPeng
(1. Ningxiang Power Supply Company of State Grid Hunan Electric Power Company, Changsha 410600, China;
2. School of Electrical Engineering, Wuhan University, Wuhan 430072, China)
Abstract: A new method to evaluate the operating condition of power transformer is proposed. The method firstly builds an evaluation index system for operation state of transformers. It concludes 6 evaluation indexes, i.e. dissolved gas CH4, oil dielectric loss, insulation resistance, leakage current, oil absorption ratio,and water in the oil. Then operation data are collected based on the different operation modes of the transformer, Artificial Physics Optimization Algorithm is utilized to optimize these multiple index data. Game theory is deployed to ascertain the weight values of different index. Finally the index values and weights are combined to get the evaluating results of the operation condition for transformers.A simulation case is performed based on nine large domestic transformers of one city. Case one verifies that the artificial physics optimization algorithm has better optimization results, effectively improves the convergence speed,and gets better iteration results. Case two achieves the final evaluation of the operation conditions for transformers where No.9 transformer runs best and No.3 transformer runs worst. These results have important guidance and reference value for the maintenance and overhaul of transformers in the future.
Key words: Game theory; artificial physics optimization algorithm; transformer condition evaluation; evaluation index system
压器的安全可靠运行越来越关系着电力系统的安全
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引言
随着国内经济和电力系统的高速发展，大型变
基金项目：国家自然科学基金项目资助(51477123）万方数据
运行和国家经济实力的提高。尤其是随着造价高昂、设计结构复杂的超高压（或特高压）、大容量变压器不断地参与电网生产和运行，一且某台变压器出现故障，极易造成大面积的停电事故，严重影响电力系统的安全可靠运行；同时，变压器的维护费用和检修