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IGBT inverter welding power source working process computer simulation and experimental study

Author: PanHongLei
Tutor: WuZhiSheng
School: Taiyuan University of Science and Technology
Course: Materials Processing Engineering
Keywords: IGBT inverter welding power source Working Process Computer Simulation Multisim Matlab
CLC: TP391.9
Type: Master's thesis
Year: 2010
Downloads: 143
Quote: 0
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Abstract


Inverter welding power source with high efficiency, light weight , small size, excellent electrical properties, arc welding performance is good , etc., it is widely used in the welding industry . The inverter welding power source circuit there is a very common situation in which the system electromagnetic compatibility , reliability issues, and functional modular problem . Introduction of DSP control technology not only effectively solve the general problem inverter welding power source , and the realization of the digital inverter welding power source . For system modeling and computer simulation for DSP control technology has great role in promoting . We conduct research on DSP control technology , and its approach is a welding power source circuit modeling and simulation, the main research contents are: paper analyzes the full-bridge IGBT inverter welding power structure, the establishment of the inverter arc welding power supply main circuit and control system hardware circuit ; using Multisim simulation software to build a full-bridge IGBT inverter welding power source main circuit simulation model of the IGBT full bridge inverter welding power source input and output waveforms of the change process ; using MATLAB simulation software, to establish a control system simulation model of the control system works , especially simulation of PID controller parameters on the controller performance , and finally simulated external characteristics of arc welding inverter and and experimental test results were compared. The results show that the simulation results are consistent with the experimental results . Using Multisim software modeling and simulation results rectifier, filter , inverters , resonant , again rectified waveform simulation waveforms ; through Matlab software modeling and simulation to determine the PWM driver output waveform , PID controller scaling factor , integral time constant , differential time constant , and the current and voltage output waveform. According to the simulation data and experimental data were established outside the characteristic curve , after comparing the simulation model proved feasible .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Computer simulation
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