Double-wire arc welding power system based on sinusoidal wave modulating pulses
A technology of sine wave modulation and power supply system, which is applied to arc welding equipment, manufacturing tools, welding equipment, etc., and can solve problems such as lack of system theory regularity
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[0075] The present invention will be further described below in conjunction with specific embodiments.
[0076] The dual-wire arc welding power supply system based on sine wave modulated pulses in this embodiment includes:
[0077] Mathematical model for sine wave modulated pulse, used to change the welding pulse current I i The peak value and the base value change according to the sine wave law to form the peak and base current sequence value;
[0078] The control detection circuit with DSP as the control core is used to realize the closed-loop control of the double-wire arc welding power supply system to ensure that the output current and voltage of the system have stable closed-loop controllability. DSP is used for flexible programming to realize the digitalization of the control process of the system. At the same time, on the basis of the above mathematical model, the sine wave modulated pulse technology is realized to make the welding pulse current I i The peak and base value ch...
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