The Research Of SCR Welding Power Source Control System Based On DSP

Welding is an advanced manufacture technique, it is a new subject that developed from single processing technique to many subjects mingled with each other, Become one integration engineering technique that contain unexampled virtues than others connect method and indispensability in many high-tech produce manufacture. Welding technique is the foundation of keeping the quality of products. It's development level direct affect the quality and reliability of the new produce. Welding technique broad application in each department of industry creative, exert emphasize function in industrial development and production technique progress, as well as hasten country economic development.Nearly one century, the hail development of Electron, Communication, Automatization, Artifical intelligence, new type material etc, advanced manufacture technique quickly developed and thoroughly application since immit new energy into welding technique. In this century, welding technique as one important section in advanced fabrication technique will exert important function. So, the new type welding power that performance well and work steady is thirsted in industry development, production technique processing and economy rise, as well as can ensure arc steady burning and get well welding joint.This thesis do some research in digital welding power source, designed contain balance reactor double reverse star-shape SCR priority circuit, together with synchronization circuit, trigger circuit etc periphery circuit, using TMS320LF2407 DSP made in TI company as the controller system CPU, CC'C2000 as the integration development environment, ANN technique and PID control conjunct as the control arithmetic. The application of aptitude technique embodiment marked superiority in parameter rectify and auto-accommodate. The aim of this thesis is through the whole design in welding equipment management, wave provide etc, realize the control of power source trait, precision control in output current and voltage wave. Enhance the ability of arc-kindling, arc melt ability and appropriate arc-thrust. Gain well...