标题：Flow simulation analysis of EEV-CAT system based on PID control algorithm
作者：Yang, Qianming ;Dai, Hualiang
作者机构：[Yang, Qianming ;Dai, Hualiang ] College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, China
会议名称：2011 International Conference on Electronics, Communications and Control, ICECC 2011
会议日期：September 9, 2011 - September 11, 2011
来源：2011 International Conference on Electronics, Communications and Control, ICECC 2011 - Proceedings
摘要：A computer assisting test (CAT) platform of flow characteristics of electronic expansion valves (EEV) is taken as the studying object in this paper, then the mathematical model of experimental system of flow-opening is established, and the simulation analysis of response characteristic of valve mouth flow is achieved by the software of Simulink; In order to improve the stability and responsive rapidity of EEV's flow characteristics, PID regulator is introduced in adjusting digital pulse signal of EEV's stepping motor. The results of studying show that the control system of EEV's flow-opening can obtain a better flow-opening performance on condition of PID control. © 2011 IEEE.