Event-Based PID Control of a Flexible Manufacturing Process

被引:6
作者
Duca, Octavian [1 ,2 ]
Minca, Eugenia [1 ,3 ]
Filipescu, Adrian [1 ,4 ]
Cernega, Daniela [4 ]
Solea, Razvan [4 ]
Bidica, Claudiu [1 ]
机构
[1] Dunarea de Jos Univ Galati, Doctoral Sch Fundamental Sci & Engn, Galati 800008, Romania
[2] Valahia Univ Tagoviste, Inst Multidisciplinary Res Sci & Technol, Targoviste 130024, Romania
[3] Valahia Univ Tagoviste, Dept Automat Comp Sci & Elect Engn, Targoviste 130024, Romania
[4] Dunarea de Jos Univ Galati, Dept Automat & Elect Engn, Galati 800008, Romania
关键词
flexible manufacturing; PID; event-based control; SYSTEMS;
D O I
10.3390/inventions7040086
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In most cases, the system control is made in a sampled manner, measuring the controlled value at a predefined frequency given by the sampling time. However, not all processes provide relevant information at regular intervals, especially in manufacturing. To reduce the costs and complexity of systems, event-based measuring is necessary. To control this kind of process, an event-based controller is needed. This poses some challenges, especially between the event-triggered measurement, as the process runs in an open loop. In the literature, most event-based controllers are based on the comparison of the error value with a predefined value and activate the controller if this value is crossed. However, in this type of controller, the measured value is measured at a predefine interval and is not suited for most event-based processes. In manufacturing systems, the most usual event-based process is represented by the conveyor transportation system. In this process, the product position is measured only in key locations on the conveyor. For the optimal operation of a flexible manufacturing system, the presence of a product in a key location at predetermined intervals is necessary. For this purpose, this article presents an event-based PID controller implemented on a conveyor transportation system.
引用
收藏
页数:16
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