ISA Interchange

Welcome to the official blog of the International Society of Automation (ISA).

All Posts

Robust Control Strategies for an Electric Motor Driven Accumulator with Elastic Webs

This post is an excerpt from the journal ISA Transactions. All ISA Transactions articles are free to ISA members, or can be purchased from Elsevier Press.

 

paper industry

 

Abstract: This paper concerns the modeling of an accumulator used in industrial elastic web processing plant to allow changing material roll while the rest of the line remains at a constant web velocity. A nonlinear model of a motor actuated accumulator is first summarized. This model is derived from the physical relationships describing web tension and velocity dynamics in each web span of this accumulator. A linear model is deduced from the nonlinear one around a working point for frequency domain analysis. Thus the effect of some mechanical accumulator parameter variations are analyzed. In a second part, multi-model industrial PI controllers, adjusted with evolutionary algorithm on our realistic nonlinear model are compared with multi-model H1 controllers. Both controllers allow good robustness against mechanical parameter variations.

Free Bonus! To read the full version of this ISA Transactions article, click here.

Enjoy this technical resource article? Join ISA and get free access to all ISA Transactions articles as well as a wealth of other technical content, plus professional networking and discounts on technical training, books, conferences, and professional certification.

Click here to join ... learn, advance, succeed!

2006-2018 Elsevier Science Ltd. All rights reserved.

 

Related Posts

COVID-19 and Industrial Cybersecurity: Studies in Risk Response

I never thought that I’d be comparing toilet-roll purchasing habits with cybersecurity risk management, b...
Contributing Author Jun 2, 2020 5:15:00 AM

Tesla's Virtual Power Plant: Re-Envisioning the Electric Grid

Consider the electric grid. It blankets most of the world. Its existence and reliability have defined the...
Kara Phelps May 26, 2020 5:15:00 AM

How to Build a Standards-Based Cybersecurity Culture: Learn More in ISA's New Whitepaper

Industrial control systems (ICS) are rarely protected adequately against cyber threats, and that's a seri...
Kara Phelps May 22, 2020 5:00:00 AM