TY - JOUR
T1 - Abstraction of thermal welding system based on element-description method
AU - Takeuchi, Issei
AU - Egawa, Masakazu
AU - Nishimura, Satoshi
AU - Katsura, Seiichiro
N1 - Funding Information:
This paper proposed the abstraction method of the thermal welding system based on EDM. Both the model structure and parameters were simultaneously abstracted by using the proposed method. Therefore, determining the model in advance is not needed when the target system is identified. This property makes it possible to abstract a model of the target system even if the system model is unknown. Moreover, it can express nonlinear elements by preparing nonlinear selectable elements. In addition, the abstraction result is understandable because it is expressed by a combination of the simple elements shown in Fig. 4. Hence, abstracted results can be used for controller design. It is also possible to inherit the obtained result to other target system abstractions. Therefore, it became possible to gradually derive a highly accurate model by increasing the number of rows. Hence, learning can be finished arbitrarily at the time when sufficient accuracy is obtained. In this paper, EDM was applied to a thermal welding system, and its effectiveness was demonstrated. The EDM can be expected to develop as a machine learning method that is highly cooperative with humans. Acknowledgment This work was partially supported by JSPS KAKENHI Grant Number 18H03784.
Publisher Copyright:
© 2020 The Institute of Electrical Engineers of Japan.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Thermal welding systems are widely used in industrial applications such as packaging machinery, food manufacturing machinery, injection molding machinery, and chemical plants. In these machines, the modeling of the thermal welding system is important to control the temperature with high accuracy. The actual thermal welding system is a distributed parameter system. When implementing the actual machine, it is generally used to approximate a lumped parameter system. However, the optimal approximation such as the selection of necessary and sufficient order to a lumped parameter system is difficult. This paper proposes an abstraction method for the thermal welding system based on an element-description method. The proposed method can abstract the necessary and sufficient model. Therefore, it is possible to design a highly accurate control system according to requirements.
AB - Thermal welding systems are widely used in industrial applications such as packaging machinery, food manufacturing machinery, injection molding machinery, and chemical plants. In these machines, the modeling of the thermal welding system is important to control the temperature with high accuracy. The actual thermal welding system is a distributed parameter system. When implementing the actual machine, it is generally used to approximate a lumped parameter system. However, the optimal approximation such as the selection of necessary and sufficient order to a lumped parameter system is difficult. This paper proposes an abstraction method for the thermal welding system based on an element-description method. The proposed method can abstract the necessary and sufficient model. Therefore, it is possible to design a highly accurate control system according to requirements.
KW - Element description method
KW - Heat flow control
KW - Temperature control
KW - Welding system
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U2 - 10.1541/ieejjia.9.530
DO - 10.1541/ieejjia.9.530
M3 - Article
AN - SCOPUS:85092073210
SN - 2187-1094
VL - 9
SP - 530
EP - 537
JO - IEEJ Journal of Industry Applications
JF - IEEJ Journal of Industry Applications
IS - 5
ER -