Control of heat diffusion in arc welding using differential flatness theory and nonlinear Kalman Filtering
نویسنده
چکیده
Control of the heat diffusion in the welded metal is of primary importance for succeeding welding of high quality (the latter being a prerequisite for efficient ship building). The paper proposes a distributed parameter systems control method that is based on differential flatness theory for solving the problem of heat distribution control in the arcwelding process. Besides, it proposes a nonlinear filtering method, under the name Derivativefree nonlinear Kalman Filtering for reducing the number of real-time control measurements needed to implement the feedback control loop. The stability of the control method is confirmed analytically, while its efficiency is also evaluated through simulation experiments.
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