پاورپوینت يک سيستم صنعتی (pptx) 22 اسلاید

دسته بندی : پاورپوینت

نوع فایل : PowerPoint (.pptx) ( قابل ویرایش و آماده پرینت )

تعداد اسلاید: 22 اسلاید

قسمتی از متن PowerPoint (.pptx) :

بنام خدا 1 2 Example 1: An industrial plant The example, taken from the steel industry, is of a particular nature, however the principal elements of specifying a desired behaviour, modeling and the necessity for trade-off decisions are generic. مثال 1: يک سيستم صنعتی 3 Process schematic of a steel industry نمای شماتيک صنعت فولاد  4 Process schematic of a steel industry (continue) يک نمونه شمش قيف حاوی مواد مذاب شير کنترل قالب گيری خنک سازی اوليه 5 The cast strip in the secondary cooling chamber نوار ريخته گری در دومين بخش خنک سازی 6 Performance specifications مشخصه های عملکردی The key performance goals for this problem are: Safety: Clearly, the mould level must never be in danger of overflowing or emptying as either case would result in molten metal spilling with disastrous consequences. Profitability: Aspects which contribute to this requirement include: Product quality Maintenance Throughput 7 Definition of the control problem Abstracting from the above particular problem, we can introduce: Definition 2.1: The central problem in control is to find a technically feasible way to act on a given process so that the process behaves, as closely as possible, to some desired behaviour. Furthermore, this approximate behaviour should be achieved in the face of uncertainty of the process and in the presence of uncontrollable external disturbances acting on the process. 8 Models Model: Relationship among observed signals. 1- Mental models 2- Graphical models 3- Mathematical (analytical) models 4- Software models Split up system into subsystems, Joined subsystems mathematically, 1- Modeling 2- System identification Does not necessarily involve any experimentation on the actual system. It is directly based on experimentation. Input and output signals from the system are recorded. 3- Combined 9 Modeling مدلسازی