基于双判据融合的串联变压器磁饱和抑制系统  

Magnetic saturation suppression system of series transformer based on double criterion fusion

作　　者：李小伟 简雷 马小龙 张金龙 顾理强 LI Xiaowei;JIAN Lei;MA Xiaolong;ZHANG Jinlong;GU Liqiang(State Grid Guyuan Power Supply Company,Guyuan 756000,China;Nanjing Gupan Automation Technology Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]国网固原供电公司,宁夏固原756000 [2]南京固攀自动化科技有限公司,江苏南京210000

出　　处：《电子设计工程》2024年第10期149-153,共5页Electronic Design Engineering

摘　　要：串联变压器磁饱和抑制系统在抑制过程中会出现电流畸变,无法取得较好的抑制效果。为此,基于双判据融合设计了一种新的串联变压器磁饱和抑制系统,通过串联变压器、保护工作器件和电流互感器设置系统硬件结构。采用二次电流波形斜度模块,检测串联变压器的磁饱和电流,计算二次电流谐波确定谐波基波数值,检测电流和电压波形状态,实现磁饱和抑制。实验结果表明,基于双判据融合的串联变压器磁饱和抑制系统能够有效解决电流畸变问题,抑制后二次测量电流波形和电压波形波动较为稳定,该文方法具有良好的抑制效果。The magnetic saturation suppression system of series transformer has current distortion in the suppression process,which can not achieve good suppression effect.Therefore,a new series transformer magnetic saturation suppression system is designed based on the fusion of two criteria.The system hardware structure is set up through the series transformer,protective devices and current transformers.The secondary current waveform slope module is used to detect the magnetic saturation current of the series transformer,calculate the secondary current harmonics to determine the harmonic fundamental value,detect the current and voltage waveform status,and achieve magnetic saturation suppression.The experimental results show that the magnetic saturation suppression system of series transformer based on dual criteria fusion can effectively solve the problem of current distortion,and the current waveform and voltage waveform of secondary measurement are stable after suppression.The method in this paper has a good suppression effect.

关 键 词：双判据融合 串联变压器 磁饱和抑制 抑制控制 

分 类 号：TN709[电子电信—电路与系统]