基于多目标粒子群算法的宽量限电流互感器传变特性分析与优化  

Analysis and Optimization of Transmission Characteristics Of Wide Range Current Transformers Based on Multi-Objective Particle Swarm Algorithm

作　　者：谢云浩 吴自然[1,2] 陈威 包晓忠[3] 许海波 XIE Yunhao;WU Ziran;CHEN Wei;BAO Xiaozhong;XU Haibo(Low Voltage Apparatus Technology Research Center of Zhejiang,Wenzhou University,Wenzhou 325606,China;Technology Institute of Wenzhou University in Yueqing,Wenzhou 325699,China;Zhejiang Tengen Electric Co.,Ltd.,Yueqing 325600,China)

机构地区：[1]浙江省低压电器工程技术研究中心(温州大学),浙江温州325606 [2]温州大学乐清工业研究院,浙江温州325699 [3]浙江天正电气股份有限公司,浙江乐清325600

出　　处：《电器与能效管理技术》2022年第8期8-17,共10页Electrical & Energy Management Technology

基　　金：浙江省基础公益研究计划项目(LGG20E070005);温州市重大科技专项(ZG2021026、ZG2020049);浙江省教育厅一般项目(Y202044245)。

摘　　要：建立了考虑材料非线性与二次回路参数的电流互感器数学模型,计算宽量限范围内的传变电流波形。同时选用高倍电流下二次侧电流的垂直分辨率作为评价指标,分析关键设计参数对互感器传变特性的影响。在此基础上,利用多目标粒子群优化算法,对250 A额定电流的电流互感器产品进行优化,在保证线性区测量精度的前提下,深度饱和区的垂直分辨率提高13.2%,成本降低5.4%。The mathematical model of the current transformer considering material nonlinearity and secondary circuit parameters is established to calculate the transmission current waveform in a wide range.The vertical resolution of secondary current with high current value is used as evaluation index to analyze the influence of key design parameters on transformer transmission characteristics.In addition, the multi-objective particle swarm optimization algorithm is used to optimize the current transformer with 250 A rated current.On the premise of ensuring the measurement accuracy in the linear region, the vertical resolution in the deep saturation region is improved by 13.2%and the cost is reduced by 5.4%.

关 键 词：电流互感器 速断保护 垂直分辨率 多目标粒子群优化算法 

分 类 号：TM452[电气工程—电器]