Application of Self-Adaptive Smith Algorithm in Evaporator System

Article Preview

Abstract:

Refrigerating evaporator superheat has the characteristics of the large time delay and superheat model is uneasy to determine. But the general smith control has bad robustness and require a high model accuracy. The paper introduces a self-adaptive smith control way, this method can dynamically amend the estimated output through historical estimated Result, which can improve the predicting accuracy. Applying this control way to the evaporator superheat system, the control quality is improved, system runs stably,anti-interference performance improved and also the systems robustness.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1691-1694

Citation:

Online since:

September 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Wei Danhua, He Jianzhong, Research on Dynamic Matrix Control(DMC) of evaporator superheat system with time-delay, J. Computer engineering and applications. 49(2013): 254-257.

Google Scholar

[2] Du Feng, Du Wencai, Network control system based on new Smith estimated compensation, third ed , Bei jing, (2012).

Google Scholar

[3] Wei Yin, Bai Zhenlong, New Smith adaptive identification control algorithm, J. Automation instrument. 30(2010): 31-34.

Google Scholar

[4] Chen Wenyong, Chen Jiuzhi, Zhu Ruiqi, Control algorithm of electronic expansion valve in evaporator superheat regulation. J, Journal of Shanghai jiaotong university. 35(2001): 1229-1232.

Google Scholar

[5] Elliott M S, Shenoy B, Rasmussen B P, A control architecture solution to superheat nonlinearity. American Control Conference, (2010): 5898-5903.

DOI: 10.1109/acc.2010.5531221

Google Scholar

[6] Bahill, A. T, A simple adaptive Smith-predictor for controlling time-delay systems: A tutorial. USA Control Systems Magazine, (1983): 16-22.

DOI: 10.1109/mcs.1983.1104748

Google Scholar