安徽大学学报（自然科学版）2017，Vol.41Issue(6)：86-93,8.DOI:10.3969/j.issn.1000-2162.2017.06.012
基于Preisach理论的PT磁化特性分析及铁磁谐振检测方法
Analysis of PT magnetization characteristics based on Preisach theory and detection method of ferroresonance
摘要
Abstract
In order to improve the security and reliability of the distribution network operation,it is necessary to simulate and analyze transient process of potential transformer for detecting ferroresonance in real time and exploring the mechanism of ferroresonance.In this paper,the Preisach theory was applied to analyzing magnetization characteristics of PT and obtain excitation inductance characteristics of various types of ferroresonance.A ferroresonance detection method was proposed based on the sum of the three-phase voltage and the neutral line current on the primary side of PT.A typical 10 kV distribution system was modeled in PSCAD/EMTDC,and simulation results showed that the detection method could identify single-phase earth fault and different types of ferroresonance promptly and effectively.关键词
电压互感器/铁磁谐振/励磁电感/Preisach理论/检测方法Key words
potential transformer/ferroresonance/magnetizing inductance/Preisach theory/detection method分类
信息技术与安全科学引用本文复制引用
吉兴全,朱仰贺,李可军,张玉振,张玉健..基于Preisach理论的PT磁化特性分析及铁磁谐振检测方法[J].安徽大学学报（自然科学版）,2017,41(6):86-93,8.基金项目
山东省自然科学基金资助项目(ZR2012EEM021) （ZR2012EEM021）
