400A high frequency robot welding machine

Release time:

2023-05-24 14:32

pic

PROJECT INTRODUCTION
This reference design solution is a high-frequency inverter robotwelding machine with a DSC microprocessor for full digital controland a rated current of 350 A. The main circuit uses a hard-switchfull-bridge topology based on SiC devices and APL self-developedSiC driver module was used to achieve active Mille clamp anddesaturation short-circuit protection, which improves the reliabilityof the system.
 
DESIGN SPECIFICATION
Input Voltage 380Vac
Output Current 400A
Rated Power 15KW
Switching frequency 200KHz
System Efficiency > 92%

 

FEATURES

· Switching frequency up to 200 kHz, system efficiency up to 94%;

· Various CAN BUS, RS232/485 digital communication interfaces;

· Excellent dynamic response, excellent regulation of the welding arc;

· Small volume of the machine:

 

MAIN TOPOLOGY

pic

MAIN DEVICES
 
Function Part Number Brand
Sid Mos C3M0065100K Wolfspeed
Driver APD202 APL self-developed
Output Rectifier Diode DSA3001200NA IXYS

 

 MEASUREMENT RESULTS AND WAVEFORMS

 

picRCD Load 3KVA

picPF=0.5 逆变短路保护1s

 

 

picSoft start @no load

picWorking waveform @full load

 

 

picWorking waveform @no load

picWorking waveform @50A output

 

 

picWorking waveform @200A output

picWorking waveform @400A output

 

 

picWelding seam picture

 

Download related files

File name
Release time
Download

400A high frequency robot welding machine

2023-05-24