摘要
基于变压器瞬态热点温度计算模型,利用L-M算法对SZ11-20000/66油浸式变压器热特性参数进行寻优,同时针对负荷下降时变压器瞬态热点温度计算误差较大的情况提出了修正因子,将改进后的变压器瞬态热点温度计算结果与试验结果进行了比较,验证了方法的有效性。
Based on the calculation model of transformer transient hot spot temperature,the thermal characteristic parameters of SZ11-20000/66 oil-immersed transformer are optimized by L-M algorithm,and a correction factor is proposed for the case that the calculation error of transformer transient hot spot temperature is large when the load drops.The modified results of transformer transient hot spot temperature calculation are compared with the experimental results,and the validity of the method is verified.
作者
邓永清
牛曙
晋涛
阮江军
杨罡
王伟
DENG Yong-qing;NIU Shu;JIN Tao;RUAN Jiang-jun;YANG Gang;WANG Wei(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;State Grid Shanxi Electric Power Company Electric Power Research Institute,Taiyuan 030001,China)
出处
《变压器》
北大核心
2020年第7期7-11,共5页
Transformer
基金
国网山西省电力公司科学技术项目(52053018000V)。
关键词
L-M算法
油浸式变压器
光纤测温
热点温度
Levenberg-Marquardt algorithm
Oil-immersed transformer
Optical fiber temperature measurement
Transformer hot spot temperature
