Title :
Behavior of Charge Inertia Battery in Commutation Process of Variable-Polarity Welding Arc
Author :
Heqing, Yao ; Yao, Yao
Author_Institution :
Coll. of Mech. & Electr. Eng., Hohai Univ., Changzhou, China
Abstract :
Based on research of a variable-polarity welding arc, the phenomenon in which the time lagging in the zero crossing of the current compared to that of the voltage in the process of commutation was investigated. The effect of a “charge inertia battery” existing in the commutation process of a variable-polarity welding arc is proposed. It is presented that the current can be driven to maintain the former direction after voltage reversion due to the effect of the proposed charge inertia battery. The principle and characteristics of the charge inertia battery are analyzed, and its effect on the stability of the variable-polarity welding arc is discussed.
Keywords :
arc welding; commutation; secondary cells; charge inertia battery; commutation process; electrode negative; electrode positive; time lagging; variable-polarity welding arc; voltage reversion; Arc welding; charge inertia battery (a kind of battery effect caused by charge inertia in the commutation process of a variable-polarity arc); commutation (exchange polarity of arc); electrode negative (EN); electrode positive (EP); variable-polarity welding arc;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2010.2051564
