International Journal of Electrical and Computer Engineering
Vol 7, No 5: October 2017

Robustness and Stability Analysis of a Predictive PI Controller in WirelessHART Network Characterised by Stochastic Delay

Sabo Miya Hassan (Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia)
Rosdiazli Ibrahim (Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia)
Nordin Saad (Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia)
Vijanth Sagayan Asirvadam (Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia)
Kishore Bingi (Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia)
Tran Duc Chung (Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia)



Article Info

Publish Date
01 Oct 2017

Abstract

As control over wireless network in the industry is receives increasing attention, its application comes with challenges such as stochastic network delay. The PIDs are ill equipped to handle such challenges while the model based controllers are complex. A settlement between the two is the PPI controller. However, there is no certainty on its ability to preserve closed loop stability under such challenges. While classical robustness measures do not require extensive uncertainty modelling, they do not guarantee stability under simultaneous process and network delay variations. On the other hand, the model uncertainty measures tend to be conservative. Thus, this work uses extended complementary sensitivity function method which handles simultaneously those challenges. Simulation results shows that the PPI controller can guarantee stability even under model and delay uncertainties.

Copyrights © 2017






Journal Info

Abbrev

IJECE

Publisher

Subject

Computer Science & IT Electrical & Electronics Engineering

Description

International Journal of Electrical and Computer Engineering (IJECE, ISSN: 2088-8708, a SCOPUS indexed Journal, SNIP: 1.001; SJR: 0.296; CiteScore: 0.99; SJR & CiteScore Q2 on both of the Electrical & Electronics Engineering, and Computer Science) is the official publication of the Institute of ...