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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Deshang Sha Xiaozhong Liao |
| Copyright Year | 2009 |
| Description | Author affiliation: School of Automation, Beijing Institute of Technology, 100081, China (Deshang Sha; Xiaozhong Liao) |
| Abstract | In this paper, a fully digitalized phase-shifted full-bridge PWM gating signals generation based on symmetrical carrier is proposed. To make wire feeder vary synchronously with the output current of DC/DC converter, double closed loop control is implemented by DSP . Besides, to improve the dynamic response of wire feeder, power stage for the motor is made up of a buck converter cascaded with a full-bridge inverter . A triple closed loop control model with full digital control is also presented to achieve double-pulsed GMAW process. The control model also contains stick-out length compensation, arc length regulation and instantaneous current control. Flexibility and reliability of the proposed control strategy for DP-GMAW implemented by two DSPs are validated by welding experimental results of 20kW prototype. |
| Starting Page | 2573 |
| Ending Page | 2576 |
| File Size | 153704 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424435562 |
| DOI | 10.1109/IPEMC.2009.5157839 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-05-17 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Digital control Welding Pulse width modulation Wire Digital signal processing Space vector pulse width modulation Signal generators DC-DC power converters Buck converters Pulse width modulation inverters |
| Content Type | Text |
| Resource Type | Article |
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