摘要
交流电弧炉是一种不平衡、非线性、时变负载，在炼钢过程中其电流会产生非正弦畸变和各次谐波，使得电网电能质量变差，通过对电弧炉电气系统的谐波分析，有利于采取合适的谐波抑制措施，改善电网电能的质量。本文采取在MATLAB 6．5／Simulink环境下搭建交流电弧炉系统仿真模型的方法，通过仿真对电弧炉电气系统进行谐波分析。仿真结果表明，电弧炉的谐波电流成份主要为2—7次，与实际系统频谱分析仪实测的结果定性性质一样。
The alternating current are furnace is an unbalanced, nonlinear and time-variant load that produces higher-order harmonies during the steel-making process. The harmonies affect the quality of electric energy in public supply network. Harmonic analysis on are furnace electrical system is beneficial to adopt the good measure to restrain the harmonies. This paper builds the simulation model of alternating current are furnace on the basis of the mathematical model of are resistance by making use of power system blockset and fundamental bloekset of MATLAB 6.5/Simulink. By making simulation the results of harmonics analysis on arc furnace system show that 2nd to 7th-order are the main harmonic components in harmonic current of are furnace. The results are about the same with that measured by a harmonic analyzer.
出处
《计算机与现代化》
2009年第6期71-73,77,共4页
Computer and Modernization
基金
南阳师范学院科研基金资助项目(专项项目)
关键词
电弧炉
谐波分析
仿真
arc furnace
harmonic analysis
simulation
