软开关弧焊电源的设计及参数选择(I)

Design and parameters election for soft-switch arc welding power source(Ⅰ)

摘要: 根据新型LCL谐振软开关弧焊逆变电源主电路原理,对这种弧焊电源进行了设计,并对电路中主要参数予以了确定。其内容包括:逆变电源输出电流I_o及空载电压的计算、串联谐振电感L_s、电容C_s的参数选择、IGBT缓冲电容的参数选择。根据设计的电源参数,对研制的焊接电源进行试验。试验表明,该电源能够较好地实现软开关。从而证明该设计是合理的、有效的。

Abstract: Resonant LCL-type soft-switching arc welding power source is designed based on the principle of main circuit, and main parameter of the circuit is defined. The contents include output current I₀ and no load votage of the power source, parameter selection for series resonant inductance L_S and capacitance C_S, buffer capacitance for IGBT. The experimental results show that the power source can work well with soft-switched and the design is reasonable and valid.