Insulation condition assessment method of mine-used transformer based on spatio-temporal information fusio
-
摘要: 现有矿用变压器状态评估方法大多侧重评估模型及理论的研究，而忽视各评估指标时域和空域的关联性分析。针对该问题，提出了一种基于时空信息融合的矿用变压器绝缘状态评估方法。针对矿用变压器绝缘状态评估中数据信息的随机性、模糊性等特点，建立多层次状态评估体系；引入关联规则和变权重理论，确定评估模型中因素层的变权重系数，构建因素层指标的模糊隶属度函数，并计算其原始基本概率赋值；基于D-S证据理论对评估模型中各因素及各周期的基本概率赋值进行融合，首先将因素层评估得到的各因素基本概率赋值与其权重系数进行时域信息融合，然后对其时域融合信息进行空域融合，最后结合信度准则判断矿用变压器绝缘状态。实例验证结果表明，所提方法可对矿用变压器绝缘状态进行准确有效评估。Abstract: The existing condition assessment methods of mine-used transformer mostly focus on assessment model and theory research, while neglect temporal and spatial correlation analysis of evaluation indexes. In view of the problem, an insulation condition assessment method of mine-used transformer based on spatio-temporal information fusion was proposed. In view of randomness and fuzziness of data information in the insulation condition assessment method of mine-used transformer, a multilateral condition assessment system of mine-used transformer was established. Variable weight coefficients of factors layer of evaluation model were determined introducing association rules and variable weight synthesizing theory. A fuzzy membership function was formulated to describe the factor layer, and its original basic probability assignment was calculated. The basic probability assignment of factors and cycles in evaluation model was fused based on D-S evidence theory, firstly, basic probability assignment of factors obtained by the assessment factors layer and its weight coefficient were fused based on time domain information fusion, and then the time domain fusion information was used for airspace fusion, finally insulation condition of mine-used transformers was judged combining reliability criterion. The results of practical example prove that the proposed method can evaluate the insulation condition of mine-used transformers accurately and effectively.
-
-
期刊类型引用(8)
1. 雍明超，王磊，祁招，庞杰锋，姜睿智，孟乐，王胜辉，邵向阳. 干式变压器智能系统构建策略及关键技术研究. 电气应用. 2022(11): 6-15 . 
百度学术
2. 石宜金，谭贵生，赵波，张桂莲. 基于模糊综合评估模型与信息融合的电力变压器状态评估方法. 电力系统保护与控制. 2022(21): 167-176 . 百度学术
3. 谭贵生，曹生现，赵波，魏宏建，刘丹丹. 基于关联规则与变权重系数的变压器状态综合评估方法. 电力系统保护与控制. 2020(01): 88-95 . 百度学术
4. 顾思宇，施伟锋，兰莹，卓金宝，张文保. 基于灰云证据推理规则的电力推进船舶电能质量在线评估. 电力系统保护与控制. 2020(08): 17-24 . 百度学术
5. 戴迎宏，陈威，闫培渊，周际，汤国龙. 基于信息融合的车载式变压器运行信息特征提取系统设计. 环境技术. 2020(03): 126-131 . 百度学术
6. 张继荣. 多维异构瓦斯浓度数据的融合实现. 陕西煤炭. 2019(05): 52-56 . 百度学术
7. 陈程，聂德鑫，冯振新，张学龙，赵坤，石悠旖. 基于概率输出支持向量机和证据理论的变压器故障诊断技术. 变压器. 2018(07): 58-61 . 百度学术
8. 董方旭，咸日常，咸日明，李文强，马雪锋. 基于细菌觅食算法优化的电力变压器故障诊断技术. 电测与仪表. 2018(19): 34-40 . 百度学术
其他类型引用(6)
计量
- 文章访问数: 86
- HTML全文浏览量: 18
- PDF下载量: 24
- 被引次数: 14
下载:
