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-Xuan 1,2; Lu, Guang 1
刊名	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
	2004-10-01
卷号	25 期号:5 页码:787-790
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
ISSN号	10096264
英文摘要	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.
语种	英语
出版者	Editorial Office of Transactions of Materials and Heat Treatment
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112224]
专题	材料科学与工程学院
作者单位	1.Coll. of Mat. Sci. and Eng., Lanzhou Univ. of Sci. and Technol., Lanzhou, China 2.Lab. of Nonferrous Mat. Proc. Tech., 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.