一种考虑J-A磁滞的变压器电磁暂态模型  

A Transformer Electromagnetic Transient Model Considering J-A Hysteresis

作　　者：莫仕勋[1] 杨皓 MO Shixun;YANG Hao(School of Electrical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学电气工程学院,南宁530004

出　　处：《实验室研究与探索》2023年第3期119-124,共6页Research and Exploration In Laboratory

摘　　要：在电力系统电磁暂态模型建立中,变压器模型是不可或缺的。随着建模不断往精细化发展,对变压器电磁暂态模型的要求越来越高。目前电磁暂态仿真缺少一种考虑磁滞的变压器模型。针对以上问题,利用J-A(Jiles-Atherton)模型表示磁滞,使用梯形积分法对变压器进行建模,并提出一种将磁滞模型与变压器电磁暂态模型相结合的方法。理论计算与实验结果表明,该模型可准确地描述变压器磁滞,且离散化算法与PSCAD软件所使用方法一致,方便未来嵌入电磁暂态仿真软件。Transformer model is indispensable in the establishment of electromagnetic transient model of power system,and the current modeling is becoming more and more refined,the requirements for transformer electromagnetic transient model are becoming higher and higher,but there is a lack of transformer model considering hysteresis in electromagnetic transient simulation at present.In this paper,Jiles-Atherton model is used to represent hysteresis,transformer model is established by trapezoidal integral method,and a method combining hysteresis model with transformer electromagnetic transient model is proposed.Finally,the correctness of the method is verified by experiments.The calculated and experimental results show that the proposed model can accurately describe the transformer hysteresis,and the discretization algorithm is consistent with the method used by PSCAD,which is convenient to be embedded in the electromagnetic transient simulation software in the future.

关 键 词：变压器 电磁暂态 磁滞 J-A模型 

分 类 号：TM41[电气工程—电器]