Nowadays, there are many kinds of soldering irons such as: pulse soldering iron, baking soldering iron, but these machines are not stable in temperature and are not highly accurate during working time. Besides those, they cannot be controlled in temperature for different applications. To overcome the disadvantages of the old kinds of soldering irons, the soldering station, which can change the temperature and track and stabilize around the setting points, has been discovered in this paper. The authors will build the mathematic model of the system, design the controller, and simulate using Matlab Simulink. Specially, producing and experimenting on the real solder station to illustrate the theory are the last part of this paper. | Ngô Minh Chu và Đtg Tạp chí KHOA HỌC & CÔNG NGHỆ 139(09): 219 - 222 SOLDERING STATION Ngo Minh Chu*, Vu Ngoc Huy, Nguyen Thi Ngoc Linh College of Technology - TNU SUMMARY Nowadays, there are many kinds of soldering irons such as: pulse soldering iron, baking soldering iron, but these machines are not stable in temperature and are not highly accurate during working time. Besides those, they cannot be controlled in temperature for different applications. To overcome the disadvantages of the old kinds of soldering irons, the soldering station, which can change the temperature and track and stabilize around the setting points, has been discovered in this paper. The authors will build the mathematic model of the system, design the controller, and simulate using Matlab Simulink. Specially, producing and experimenting on the real solder station to illustrate the theory are the last part of this paper. Key words: Soldering station, mathematic model, setting point, temperature INTRODUCTION* Understanding of technical requirements and determining the main parts of the relatively plant model are the very important works in controlling plant and designing a real high effective device. Along with standards, evaluating the quality of the system such as keeping stable output, reaching set point quickly is very difficult if there have no good and accurate mathematical model of the plant and suitable controller. Calculation in theory helps us build up the exact form of controller, and then applies that in reality which is very important and effective for designing and controlling a real device. Many factors make difficult to get the small error, and fast time responding such as: the nonlinear, high delay time plant and approximation to find the transfer function for the nonlinear parts. Moreover, when creating the real device, changing among units, measuring, and communication transforming make the real product more difficult to control. In this project, the author will study
