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Advisor(s)
Abstract(s)
This paper deals with the modelling and control of an oven for reflowing electronic surface-mounted devices. The modelling is done taking into account that the system has a second-order dynamic behaviour whose parameters were obtained through a genetic algorithm. It is also shown that this system exhibits a high pure time-delay which makes the design of the control system very difficult. In particular, the performance of a PI controller is evaluated with respect to tracking two different types of reference signals. It is observed that the performance of such a controller is severely affected by the huge inertia of the system. In order to mitigate this effect, tests were performed with a different architecture known as the Smith predictor. It is concluded that, although with differences, neither the PI controller nor the Smith allows the tracking of the typical reference in a reflow process.
Description
Keywords
Controller design Dead-time processes SMD reflow System modelling
Citation
Yanase De Rezende, Rafael Luis; Coelho, João Paulo (2022). Modelling and control of a retrofitted oven for SMD reflow. In 2nd International Conference on Optimization, Learning Algorithms and Applications, OL2A 2022. 1754, p. 546 - 561. Bragança
Publisher
Springer Nature