论文部分内容阅读
大型重型机器制造企业使用交流电弧炉炼钢提供钢液,制造锻造用钢锭和铸钢件。使用电气监测仪表,对鞍钢重型机械有限责任公司1~#交流电弧炉炼钢过程中的电力参数进行了实测,得到72668个有效数据。分析表明,在1挡电压下电弧炉变压器利用率仅为67.79%。研究以二次侧工作电流为自变量,建立该电弧炉炼钢过程电气运行的非线性电抗模型,绘制电气运行特性曲线。研究结果表明,变压器在1,2,5挡电压下运行,工作电流提高至额定电流,输出的有功功率可分别提高35.6%,16.7%,21.3%。
Large heavy machinery manufacturers use EAF steelmaking to provide molten steel, forged ingots and steel castings. The electrical parameters of 1 # AC electric arc furnace in Ansteel Heavy Machinery Co., Ltd. were measured by using electrical monitoring instruments, and 72,668 valid data were obtained. Analysis shows that in the first gear voltage arc furnace transformer utilization rate of only 67.79%. Based on the working current of the secondary side as an independent variable, a nonlinear reactor model of electrical operation during the electric arc furnace steelmaking process was established, and the electrical operation characteristic curve was drawn. The results show that the transformer operates at the first, second and fifth voltages, and the working current increases to the rated current. The output active power can be increased by 35.6%, 16.7% and 21.3% respectively.