Nonlinear electrical modeling for the resistance spot welding process

Author

Dhandapani, Siva ; Bridges, Michael ; Kannatey-Asibu, Elijah, Jr.

Author_Institution

Dept. of Mech. Eng. & Appl. Mech., Michigan Univ., Ann Arbor, MI, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

182

Abstract

This paper deals with the nonlinear modeling of the electrical subsystem associated with the resistance spot welding (RSW) process. This will be used in the design of model-based nonlinear control strategies to achieve welds of good quality. Switched-state, thyristor driven, linear and nonlinear transformer models have been developed that characterize the electrical dynamics. A detailed parameter estimation algorithm has also been implemented to identify the circuit parameters and the models have been validated against experimental results

Keywords

control system synthesis; nonlinear control systems; parameter estimation; resistance welding; thyristor applications; RSW process; circuit parameter identification; electrical dynamics; electrical subsystem; linear transformer models; model-based nonlinear control design; nonlinear electrical modeling; nonlinear transformer models; parameter estimation; resistance spot welding process; switched-state transformer models; thyristor driven transformer models; Automotive materials; Circuits; Coils; Electric resistance; Feedback control; Joining materials; Magnetic cores; Spot welding; Thyristors; Vehicle dynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1999. Proceedings of the 1999

Conference_Location

San Diego, CA

ISSN

0743-1619

Print_ISBN

0-7803-4990-3

Type

conf

DOI

10.1109/ACC.1999.782765

Filename

782765