نوع مقاله : مقاله شیمی
نویسندگان
1 گروه مهندسی شیمی، دانشکده مهندسی، دانشگاه کاشان، کاشان، ایران
2 گروه مهندسی شیمی، دانشکده فنی، دانشگاه رازی، کرمانشاه، ایران
3 گروه مهندسی شیمی، دانشکده مهندسی، دانشگاه کاشان، کاشان، ایران.
4 گروه مهندسی شیمی، دانشکده مهندسی شیمی و نفت، دانشگاه هرمزگان، بندرعباس، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
PID controller is a closed-loop control algorithm and method using the concept of feedback that is used in many industrial processes to control the speed of DC motors, pressure control, temperature control, and so on. For this purpose, a horizontal object with different conductivities was chosen to control its temperature by changing the heat flux. Then the studied system was written in the state space. In this method, partial differential equations were converted into ordinary differential equations with the help of finite difference, then a suitable controller was designed for temperature control. In this method, the differential equations expressing the process were written as simultaneous first order differential equations. The results show that for the stability of systems with poor thermal conductivity (small value of α) should be K_p/K_i =10 and K_d=0.1. For systems with medium thermal conductivity should be K_p/K_i =0.1 and K_d=0.1. For systems with strong thermal conductivity (large value of α), K_p/K_i =1 should be selected.
کلیدواژه‌ها [English]
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