MODELING OF AC ARC FURNACE AND ITS INFLUENCE ON THE RELAY PROTECTION
This paper presents a novel model of the electric arc furnace (EAF) based on energy conservation theory. Starting from the arc energy balancing equation for the electric arc,the proposed model is able to reflect the steady-state operating characteristic of arc furnace accurately. Then the dynamic arc furnace model can be obtained by modulating the definitive model with white noises. The model is proved to be accurate and valid tested by simulation. Due to the adverse effects produced by the operation of arc furnace,it also analyzes the influence on the protective relay,which includes: the mal-operation of negative sequence relay and frequent operation of startup component. The suppressing measures with reasonable results for these problems are also presented in this paper.
Electric arc furnace modeling negative sequence startup component
Zhao Ping Zheng Tao Xu Chenjing
Bureau of Electric Power of Taizhou,linhai 317000,China North China Electric Power University,Beijing,102206,China Fuzhou University,Fuzhou,350108,China
国际会议
南京
英文
1326-1331
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）