Investigation of optimal control system for arc spraying

	Investigation of optimal control system for arc spraying
	Li, He-Qi 1,2; Li, Chun-Xu 1,2; Chen, Ke-Xuan1,2 ; Lu, Guang 2
	2004-10-01
发表期刊	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
ISSN	10096264
卷号	25 期号:5 页码:787-790
摘要	An arc voltage feedback PID controller and an arc current feedback PID controller are designed with a control algorithm of discrete PID separately to realize optimal control in computer controlling arc-spraying system. In order to realize optimization and adaptation of the arc-spraying process parameters as well as to reduce blindness in selecting process parameters, a serial communication interface between a PC for spraying data acquisition and a MCU of the control system is designed so that on-line modification of the PID control parameters is implemented. At the same time, a genetic algorithm is adopted to optimize the control parameters of PID controller, where the difference between the actually sampled value and the setting value of spraying current is made as the judgment criterion to determine the adaptability. The given range of control parameters varies from 0 to 15 and is to be encoded by a coding of four-bit binary string. The optimal population of control parameters of the PID controller can be obtained through reproduction, crossing and mutation, so that the optimal controlling in arc-spraying process is realized and an excellent coating of arc spraying is obtained.
关键词	Adaptive control systems Electric arcs Feedback Genetic algorithms Mathematical models Optimization Three term control systems Arc current feedback Arc spraying Arc voltage feedback Process parameters Feedback control Interfaces (computer) Parameters optimization
收录类别	EI
语种	英语
出版者	Editorial Office of Transactions of Materials and Heat Treatment
EI入藏号	2005058821623
EI主题词	Spraying ; Optimal control systems
EI分类号	701.1 Electricity: Basic Concepts and Phenomena - 731.1 Control Systems - 813.1 Coating Techniques - 921.5 Optimization Techniques - 921.6 Numerical Methods ; 722.2 Computer Peripheral Equipment ; 921 Mathematics
来源库	Compendex
分类代码	701.1 Electricity: Basic Concepts and Phenomena - 731.1 Control Systems - 813.1 Coating Techniques - 921.5 Optimization Techniques - 921.6 Numerical Methods
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/112224
专题	材料科学与工程学院
作者单位	1.Lab. of Nonferrous Mat. Proc. Tech., Lanzhou Univ. of Sci. and Technol., Lanzhou, China; 2.Coll. of Mat. Sci. and Eng., Lanzhou Univ. of Sci. and Technol., Lanzhou, China
推荐引用方式 GB/T 7714	Li, He-Qi,Li, Chun-Xu,Chen, Ke-Xuan,et al. Investigation of optimal control system for arc spraying[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2004,25(5):787-790.
APA	Li, He-Qi,Li, Chun-Xu,Chen, Ke-Xuan,&Lu, Guang.(2004).Investigation of optimal control system for arc spraying.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,25(5),787-790.
MLA	Li, He-Qi,et al."Investigation of optimal control system for arc spraying".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 25.5(2004):787-790.