摘要
智能电流电压一体化传感器工作时,特征信息的线性输出与非特征信息的动态限制是一二次融合的物理本质,影响一二次融合的主要因素为复合误差、时间常数、结构对称性以及相邻元件的电磁干扰。提出聚类关联方法,对技术参数、保护参数和零序参数进行优化,测量保护电流、零序电流比值和复合误差,并验证计算结果的准确性,记录测量时间。结果显示聚类关联方法对测量保护电流、零序电流比值以及复合误差的计算准确性大于90%,计算时间短于10 s,显著优于以往的参数关联方法,满足一二次融合要求。
When the intelligent current and voltage integrated sensor is working,the linear output of characteristic information and the dynamic limitation of non-characteristic information are the physical essence of primary and secondary fusion,and the main factors affecting primary and secondary fusion are composite error,time constant,structural symmetry and electromagnetic interference of adjacent components.A clustering association method is proposed.The technical parameters,protection parameters and zero-sequence parameters are optimized,the protection current,zero-sequence current ratio and composite error are measured,and the accuracy of the calculation results is verified and the measurement time is recorded.The results show that the calculation accuracy of the cluster correlation method for measuring the protection current,zero-sequence current ratio and composite error is greater than 90%,and the calculation time is less than 10 s,which is significantly better than the previous parameter association method and meets the requirements of primary and secondary fusion.
作者
黄令忠
侯玉
HUANG Lingzhong;HOU Yu(Shenzhen Power Supply Bureau Co.,Ltd.,Shenzhen 518000,China)
出处
《电工技术》
2023年第10期22-24,共3页
Electric Engineering
关键词
一二次融合
三相智能电流电压
一体化传感器
primary and secondary fusion
three-phase intelligent current and voltage
all in one sensor
