Flow simulation analysis of EEV-CAT system based on PID control algorithm

Author

Qianming, Yang ; Hualiang, Dai

Author_Institution

Coll. of Mech. & Electron. Eng., Shandong Univ. of Sci. & Technol., Qingdao, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

1468

Lastpage

1471

Abstract

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.

Keywords

flow control; flow simulation; stability; stepping motors; three-term control; valves; CAT platform; EEV-CAT system; PID control; PID regulator; Simulink; computer assisting test; digital pulse signal; electronic expansion valve; flow characteristics; flow simulation analysis; flow-opening; mathematical model; stability; stepping motor; valve mouth flow; Analytical models; Mathematical model; Needles; Regulators; Transfer functions; Valves; EEV; PID; mathematical model; simulation analysis; stepping motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Zhejiang

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6067876

Filename

6067876