Investigation of optimal control system for arc spraying

	Investigation of optimal control system for arc spraying
	Li, HQ; Li, CX; Chen, KX; Lu, G
	2004
关键词	arc-spraying mathematical model PID controller genetic algorithm adaptive control
页码	787-790
英文摘要	An arc voltage feedback PID controller and 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.
会议录	14TH CONGRESS OF INTERNATIONAL FEDERATION FOR HEAT TREATMENT AND SURFACE ENGINEERING, VOLS 1 and 2, PROCEEDINGS
会议录出版者	TRANSACTIONS MATERIALS & HEAT TREATMENT
会议录出版地	NO 18 XUEQING RD, BEIJING, 100083, PEOPLES R CHINA
语种	英语
WOS研究方向	Engineering ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000228664200181
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/38362]
专题	材料科学与工程学院
通讯作者	Li, HQ
作者单位	Lanzhou Univ Sci & Technol, PO Educ Minist Key Lab Adv Proc Technol Non Ferro, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Li, HQ,Li, CX,Chen, KX,et al. Investigation of optimal control system for arc spraying[C]. 见:.