Model predictive control of plasma pipe welding process

Q. Kun, Z. Yuming

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This paper addresses the development of a model predictive control system for the quasi-keyhole arc pipe welding process(QAPWP). To this end, a single input single output (SISO) linear discrete model structure is proposed based on the mechanism analysis of QAPWP. Then parameters in the linear model are identified, both online and offline in the experiments. On the base of the model, the model predictive control (MPC) algorithm is designed to control the process. The closed-loop experiments verified the effectiveness of the developed controller despite the variations in the manufacturing conditions (thus the model parameters).

Original languageEnglish
Title of host publicationTrends in Welding Research - Proceedings of the 8th International Conference
Number of pages6
StatePublished - 2009
Event8th International Conference on Trends in Welding Research - Pine Mountain, GA, United States
Duration: Jun 1 2008Jun 6 2008

Publication series

NameASM Proceedings of the International Conference: Trends in Welding Research


Conference8th International Conference on Trends in Welding Research
Country/TerritoryUnited States
CityPine Mountain, GA

ASJC Scopus subject areas

  • General Materials Science
  • Mechanical Engineering


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