摘要详情

ID / 提交时间

60 / 2022-06-28 14:14:05

标题

Modeling of Electric Arc Furnace for Power Quality Analysis

关键字

electric arc furnace; harmonics; voltage flicker; power quality

主题及专题

Power System and Automation > Other topics in Power system

状态

终稿

作者

Shaoxiang Ma / Huazhong University of Science and Technology

Ruiyang Xu / Huazhong University of Science and Technology

Ming Zhang / Huazhong University of Science and Technology

摘要

Electric arc furnace (EAF) is one of the typical nonlinear loads in distribution network, which causes power quality problems such as harmonics and voltage flicker. In this paper, a time-domain simulation of AC EAF model for the study of power quality is established in MATLAB/Simulink and a simple multi-step parameter estimation method is proposed for a given EAF load. Considering the specific structure of EAF transformer, the arc model is obtained by combination and modification of classical Cassie and Mayr equations. The arc model is dynamically modulated by superimposing the sinusoidal and band-limited white noise signal to simulate the actual working conditions. The comparison between the simulated results and the measured data shows that the model is able to describe the time-varying, nonlinear and unbalanced characteristics of EAF accurately, which provides a reference for the research of the low-voltage side of the EAF transformer power quality problems.