CAJ | 학술논문

运用偏微分近似理论,在考虑焊接外电路动态全负载情况下,对电源-电弧系统稳定性进行了模型刻画,得出系统稳定系数的数学解析式,依此定性并量化分析了系统稳定性的基本条件和最优条件。在此基础上,采用电流偏差相对转换方法,获得了动态电流偏差因子的时间序列解析表达式,进而通过偏差衰减时间方式来量化分析系统的稳定性。实验的电压与电流波形分析结果与动态电流偏差因子量化结果一致。
운용편미분근사이론,재고필한접외전로동태전부재정황하,대전원-전호계통은정성진행료모형각화,득출계통은정계수적수학해석식,의차정성병양화분석료계통은정성적기본조건화최우조건。재차기출상,채용전류편차상대전환방법,획득료동태전류편차인자적시간서렬해석표체식,진이통과편차쇠감시간방식래양화분석계통적은정성。실험적전압여전류파형분석결과여동태전류편차인자양화결과일치。
Based on differential theory and considering the full load conditions from the external circuit on the course of dynamic welding,the research object was regarded as WPASS. Some models about the WPASS were found, they can obtain the analytic expression of system stability coefficient, and a qualitative analysis of WPASS＇ conditions,including its basic and optimal conditions. On the ba- sis of these, by the method of relative conversion of current deviation,a DTFCD was obtained by ana- lytical equation. Then, it was used to quantify stability of the system by the way of decaying time of deviation. Testing results based on experimental analysis of voltage and current waveforms, are the same to quantify WPASS based on DTFCD.