occ-major_events — This list is intented to inform a broader public about major events in OCC.

[OCC-Major_Events] help to get occ

[saeed s. <sse...@ya...>]

hi
i created an account in sourceforge.net but when i want to login to ..@cvs.sourceforge.net:/cvsroot/occ  an error occured:

cvs login 

(Logging in to ss...@cv...)

Fatal error, aborting.

sserp: no such user

cvs login: authorization failed: server cvs.sourceforge.net rejected access to /cvsroot/occ for user sserp

 

why? this occures? what is wrong about that?

 


		
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[OCC-Major_Events] Online-Optimization of the Tennessee Eastman Process using OCC and IPOPT

[Tobias J. <Tob...@ep...>]

Dear IPOPT and OptControlCentre Users,

recently, we submitted a paper to 'Computers and Chemical Engineering'
about the on-line optimization of the Tennessee Eastman Process using
the OptControlCentre and IPOPT.

You can download the paper preview at the OptControlCentre homepage
(www.optcontrolcentre.com) under
http://www.optcontrolcentre.com/html/downloads.html.

Regards,

Tobias Jockenhoevel


Paper details:

Title:=20
Dynamic Optimization of the Tennessee Eastman Process using the
OptControlCentre

Authors:
Tobias Jockenh=F6vel, Lorenz T. Biegler and Andreas W=E4chter

Abstract:
This study focuses on the performance of large-scale nonlinear
programming (NLP) solvers for the dynamic optimization in real-time of
large processes. Here, the software platform OptControlCentre (OCC) is
presented for the implementation of the on-line real-time dynamic
optimization. OCC is an extensive software package with a graphical user
interface (GUI) implemented in the MATLAB/Simulink environment, which
allows its users to perform dynamic optimization of complex problems. To
demonstrate this approach, we consider the on-line real-time dynamic
optimization of the Tennessee Eastman (TE) Challenge Process. The
example captures the behavior of a typical industrial process and
consists of a two phase reactor, where an exothermic reaction occurs,
along with a flash, a stripper, a compressor and a mixer. The process is
nonlinear and open loop unstable; without control it reaches shutdown
limits within an hour, even for very small disturbances. The system is
represented through a first principles model with about 200 differential
algebraic equations (DAEs). The study compares two state-of-the-art NLP
solvers, SNOPT and IPOPT for dynamic optimization on a number of
challenging control scenarios.=20

Keywords:
Online optimization, OptControlCentre, NLP solvers, real-time
optimization, RTO, NMPC

Direct link:
http://www.optcontrolcentre.com/TE_Paper.pdf