船舶高压变压器空载合闸的非线性数学模型  

Nonlinear mathematical model of no-load ship high-voltage transformer

作　　者：张灵杰[1] 孙才勤[1] 孙建波[1] 

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026

出　　处：《大连海事大学学报》2014年第2期113-116,121,共5页Journal of Dalian Maritime University

基　　金：国家高技术研究发展计划(863)资助项目(2011AA110201)

摘　　要：基于J-A理论为船舶高压变压器建立一种非线性动态时域模型,并计及涡流损耗.该模型精确地反应了变压器铁芯的磁滞与饱和特性,可更准确地描述变压器的动态过程,可用于船舶变压器的设计及相关继电保护问题的研究.采用四阶龙格库塔算法求解非线性微分方程,使模型具有较高计算精度,建立了预充磁模型.变压器空载合闸仿真实验验证了模型的正确性.A nonlinear time domain dynamic model was estab-lished based on the J-A theory for the ship high voltage trans-former , and the eddy current loss was also taken into account . This model accurately reflected the hysteresis and saturation characteristics of transformer core , and did well in describing the dynamic process of transformer , which can be used in ship transformer design and in the study of relay protection related . A fourth-order Runge-Kutta algorithm was used to solve non-linear differential equations so as to ensure the model has a high accuracy , and the pre-magnetizing model was estab-lished.The transformer no-load closing simulation results ver-ify the correctness of the transformer model .

关 键 词：变压器 磁滞回线 励磁涌流 预充磁 

分 类 号：TM401[电气工程—电器]