APMonitor Discussion Forum

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(:title APMonitor Discussion Forum:) (:keywords nonlinear, model, predictive control, APMonitor, differential, algebraic, modeling language, discussion forum:) (:description APMonitor Google Groups Discussion Forum:)

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</td></tr><tr><td>Thermal Oxidizer Boundary Value Management / InBound

</td><td>Reza Asgharzadeh, Chris Lyden, and Jim Huff

</td><td>April 3, 2012

</td><td><a href='https://byu.webex.com/byu/j.php?ED=193601947&RG=1&UID=0&RT=MiM2 '>Register</a>

</td></tr><tr><td>Linear Model Predictive Control </td><td><a href='https://byu.webex.com/byu/j.php?ED=190523552&RG=1&UID=0&RT=MiM2 '>Register</a> </td><td>March 20, 2012 </td><td nowrap>10AM MST </td><td>Isak Nielsen and John Hedengren </td><td>Empirical models obtained through subspace identification are a popular form for model predictive control (MPC) applications. This presentation relates a practical application of linear MPC with models obtained by regression techniques. Methods for sparse discrete or continuous Linear Time Invariant (LTI) forms in APMonitor are also reviewed.

</td><td nowrap>10AM MST

</td><td nowrap>10AM MST

</td><td>Load following in power generation is a recent opportunity as time of day pricing and cogeneration are adopted in refining, chemical, and power plants. This work is to improve the load following capabilities of natural gas and coal-fired boilers.

</td></tr><tr><td>Optimization of Design Under Uncertainty </td><td><a href='https://byu.webex.com/byu/j.php?ED=192896422&RG=1&UID=0&RT=MiM2'>Register</a> </td><td>May 1, 2012 </td><td nowrap>10AM MST </td><td>Casey Abbott </td><td>Process design has a number of unknown or uncertain parameters that influence the optimal design, desired operational conditions, and project profitability. Optimization of design maximizes the expected NPV (Net Present Value) considering uncertain design parameters.

</td><td><a href='/wiki/uploads/Main/apm_tutorial_21Feb12.pdf'>Presentation</a>

</td><td>The APM interface extends MATLAB to be used for parameter estimation, nonlinear control, and optimization. Participants can <a href='/wiki/uploads/Main/apm_demo.zip'>download a few example applications</a> to run prior to the meeting that will be covered as part of the tutorial.

</td></tr><tr><td>Nonlinear Programming with APM MATLAB

</td><td>John Hedengren </td><td>The APM interface extends MATLAB to be used for parameter estimation, nonlinear control, and optimization. Participants receive a number of example applications to run prior to the meeting that will be covered as part of the tutorial.

</td><td><a href='/wiki/uploads/Main/apm_tutorial_7Feb12.pdf'>Presentation</a>

</td><td><a href='/wiki/uploads/Main/apm_sofc_24Jan12.pdf'>Presentation</a>

</td></tr><tr><td>Optimal Boiler Control </td><td><a href='https://byu.webex.com/byu/j.php?ED=190523552&RG=1&UID=0&RT=MiM2 '>Register</a> </td><td>March 20, 2012 </td><td nowrap>8AM MST </td><td>Jose Mojica </td><td>Load following in power generation is a recent opportunity as time of day pricing and cogeneration are adopted in refining, chemical, and power plants. This work is to improve the load following capabilities of natural gas and coal-fired boilers.

</td><td><a href='/wiki/uploads/Main/apm_uav_17Jan12.pdf'>Presentation</a>

</td><td nowrap><b>10AM</b> MST

</td><td><a href='https://byu.webex.com/byu/j.php?ED=188092382&RG=1&UID=0&RT=MiM2 '>Register</a> </td><td>January 17, 2012

To participate in an upcoming presentation, click register and provide your name and e-mail address. Log-on information is used to communicate log-on information and a reminder notice just prior to the meeting. There is no charge to register for a webinar. Users can participate via audio or video conference through a telephone or internet connection.

APM User's Group Webinars are held every two-weeks at 8 AM Mountain Time / 9 AM Central Time (USA). Seminars consist of applications and tutorials using APM in modeling, estimation, and control applications.

(:title Optimization and Advanced Control Seminars:)

Past Presentations and Future Schedule

To participate in an upcoming presentation, click register and provide your name and e-mail address. Log-on information is used to communicate log-on information and a reminder notice just prior to the meeting. Users can participate via audio or video conference through a telephone or internet connection.

(:title Optimization and Control User's Group:)

Webinars on Optimization Applications

</td><td><a href='/wiki/uploads/Main/apm_energy_storage_13Dec11.pdf'>Presentation</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=187746022&RG=1&UID=0&RT=MiM2'>Register</a>

</td></tr><tr><td>Thermal Oxidizer Boundary Value Management </td><td><a href='https://byu.webex.com/byu/j.php?ED=186179262&RG=1&UID=0&RT=MiM2'>Register</a> </td><td>March 6, 2012 </td><td nowrap>8AM MST </td><td>Reza Asgharzadeh </td><td>Thermal oxidizers are used in chemical plants and refineries to combust waste streams with low concentrations of reactants. The design and operation of the thermal oxidizer is of crucial importance for safety, environmental, and economic reasons.

</td><td>Dustin Marshall

</td><td>Casey Abbott

</td><td>Solomon Sun

</td><td>Lee Jacobsen

</td><td>John Hedengren

</td><td><a href='/wiki/uploads/Main/apmug_fsw_15Nov11.pdf'>Presentation</a>

</td><td><a href='/wiki/uploads/Main/apmug_bio_29Nov11.pdf'>Presentation</a>

</td><td><a href='uploads/Main/apmug_fsw_15Nov11.pdf'>Presentation</a>

</td><td><a href='uploads/Main/apmug_bio_29Nov11.pdf'>Presentation</a>

</td><td><a href='/uploads/Main/apmug_fsw_15Nov11.pdf'>Presentation</a>

</td><td><a href='/uploads/Main/apmug_bio_29Nov11.pdf'>Presentation</a>

</td><td><a href=''>Presentation</a>

</td><td><a href=''>Presentation</a>

</td><td>Large scale biological models are important to gain an understanding of complex pathways to improve treatments such as anti-viral application. Simulated clinical trial data is aligned to an available model of HIV infection.

</td></tr><tr><td>Dynamic Energy Storage

</td><td>Dynamic thermal energy storage with weather forecasting has the potential to improve solar energy capture by up to 64%. Results from a recent study are discussed to demonstrate the benefits of dynamic optimization.

</td><td>Path optimization of an Unmanned Aerial Vehicle (UAV) becomes more challenging with select constraints. Application of a UAV application is discussed from the MAGICC Lab group at BYU.

</td><td>Solid Oxide Fuel Cells (SOFCs) can be damaged by load changes that shorten life through delamination and micro-cracking. Application of SOFCs in load following applications is discussed to improve lifecycle costs.

</td><td>The APM interface extends Python to be used a variety of optimization applications. Dynamic optimization programming applications are demonstrated with Python.

</td><td>With wind and current forecast data, the track of icebergs is simulated from Antarctic calving along the path North. Alignment of actual position to simulation improves tracking models.

</td><td><a href='https://byu.webex.com/byu/j.php?ED=185855462&RG=1&UID=0&RT=MiM2'>Register</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186161537&RG=1&UID=0&RT=MiM2'>Register</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186177677&RG=1&UID=0&RT=MiM2'>Register</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186178657&RG=1&UID=0&RT=MiM2'>Register</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186179147&RG=1&UID=0&RT=MiM2'>Register</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186179262&RG=1&UID=0&RT=MiM2'>Register</a>

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</td><td><a href='https://byu.webex.com/byu/j.php?ED=186177677&RG=1&UID=0&RT=MiM2'>Registration</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186178657&RG=1&UID=0&RT=MiM2'>Registration</a>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186179147&RG=1&UID=0&RT=MiM2'>Registration</a>

</td><td>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=186179262&RG=1&UID=0&RT=MiM2'>Registration</a>

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</td><td><a href='https://byu.webex.com/byu/j.php?ED=186161537&RG=1&UID=0&RT=MiM2'>Registration</a>

APM User's Group Webinars are held every two-weeks at 8 AM Mountain Time / 9 AM Central Time (USA). Seminars consist of applications and tutorials using APM in modeling, estimation, and control applications. User's are also welcome to bring questions to the forum to discuss methods with other users.

</td></tr><tr><td>Iceberg Tracking with Weather Forecasts

</td><td><b>Registration</b> </td><td><b>Date</b> </td><td><b>Time</b> </td><td><b>Presenter</b> </td><td><b>Description</b>

</td><td><a href='https://byu.webex.com/byu/j.php?ED=185855462&RG=1&UID=0&RT=MiM2'>Registration</a>

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<tr><td><b>Topic</b> </td><td>Registration </td><td>Date </td><td>Time </td><td>Presenter </td><td>Description

</td></tr><tr><td>Friction Stir Welding </td><td> </td><td>November 15, 2011 </td><td>9:00 AM, Central Time </td><td>Dustin Marshall, BYU </td><td>Friction Stir Welding (FSW) temperature control is important to achieve uniform and consistent weld properties. This application is using a PDAE model for estimation and control. The model validation, control, and experimental data testing are discussed.

</td></tr><tr><td>Virus and Biological Modeling </td><td>Registration </td><td>November 29, 2011 </td><td>9:00 AM, Central Time </td><td>Casey Abbott, BYU </td><td>

</td></tr><tr><td>Dynamic energy storage </td><td>Registration? </td><td>December 13, 2011 </td><td>9:00 AM, Central Time </td><td>Kody Powell, UT Austin </td><td>

</td></tr><tr><td>Aerial Vehicle Control for Drogue Following </td><td>Registration? </td><td>January 10, 2012 </td><td>9:00 AM, Central Time </td><td>Solomon Sun, BYU </td><td>

</td></tr><tr><td>Solid Oxide Fuel Cell Modeling and Control </td><td>Registration? </td><td>January 24, 2012 </td><td>9:00 AM, Central Time </td><td>Lee Jacobsen, BYU </td><td>

</td></tr><tr><td>Nonlinear Programming with APM Python </td><td>Registration? </td><td>February 7, 2012 </td><td>9:00 AM, Central Time </td><td>John Hedengren, BYU </td><td>

</td></tr><tr><td>Iceberg tracking with weather forecasts </td><td>Registration? </td><td>February 21, 2012 </td><td>9:00 AM, Central Time </td><td>Keith Stuart </td><td> </td></tr>

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(:cell:)Topic

(:cellnr:)Friction Stir Welding (:cell:)

(:cellnr:)Virus and Biological Modeling (:cell:)Registration

(:cellnr:)Dynamic energy storage (:cell:)Registration?

(:cell:)Kody Powell, UT Austin

(:cellnr:)Aerial Vehicle Control for Drogue Following (:cell:)Registration?

(:cell:)Solomon Sun, BYU

(:cellnr:)Solid Oxide Fuel Cell Modeling and Control (:cell:)Registration?

(:cell:)Lee Jacobsen, BYU

(:cellnr:)Nonlinear Programming with APM Python (:cell:)Registration?

(:cell:)John Hedengren, BYU

(:cellnr:)Iceberg tracking with weather forecasts (:cell:)Registration?

(:cell:)Keith Stuart

(:cellnr:)Registration

(:cellnr:)Registration?

(:cellnr:)Registration?

(:cellnr:)Registration?

(:cellnr:)Registration?

(:cellnr:)Registration?

(:cell:)Friction Stir Welding (FSW) temperature control is important to achieve uniform and consistent weld properties. This application is using a PDAE model for estimation and control. The model validation, control, and experimental data testing are discussed.

Seminar Schedule

(:table border=1 width=100%:)

(:cell:)Registration (:cell:)Date (:cell:)Time (:cell:)Topic (:cell:)Presenter (:cell:)Description

(:cellnr:) (:cell:)November 15, 2011 (:cell:)9:00 AM, Central Time (:cell:)Friction Stir Welding (:cell:)Dustin Marshall, BYU (:cell:)Friction Stir Welding (FSW) temperature control is important to achieve uniform and consistent weld properties. This application is using a PDAE model for estimation and control. The model validation, control, and experimental data testing are discussed. Dustin Marshall is a Master's degree candidate at Brigham Young University. He is part of the Friction Stir Welding group that has pioneered the development of this technology over many years. This is the first application of model predictive control to FSW.

(:cellnr:)Pre-Registration (:cell:)November 29, 2011 (:cell:)9:00 AM, Central Time (:cell:)Virus and Biological Modeling (:cell:)Casey Abbott, BYU (:cell:)

(:cellnr:)Pre-Registration? (:cell:)December 13, 2011 (:cell:)9:00 AM, Central Time (:cell:)Iceberg tracking with weather forecasts (:cell:)Keith Stuart (:cell:)

(:cellnr:)Pre-Registration? (:cell:)January 10, 2012 (:cell:)9:00 AM, Central Time (:cell:)Aerial Vehicle Control for Drogue Following (:cell:)Solomon Sun (:cell:)

(:cellnr:)Pre-Registration? (:cell:)January 24, 2012 (:cell:)9:00 AM, Central Time (:cell:)Solid Oxide Fuel Cell Modeling and Control (:cell:)Lee Jacobsen (:cell:)

(:cellnr:)Pre-Registration? (:cell:)February 7, 2012 (:cell:)9:00 AM, Central Time (:cell:)Nonlinear Programming with APM Python (:cell:)John Hedengren (:cell:)

(:cellnr:)Pre-Registration? (:cell:)February 21, 2012 (:cell:)9:00 AM, Central Time (:cell:)TBD (:cell:)TBD (:cell:)

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• Pre-Registration

APM User's Group Webinars are held every two-weeks at 8 AM Mountain Time (USA). Seminars consist of applications and tutorials using APM in modeling, estimation, and control applications. User's are also welcome to bring questions to the forum to discuss methods with other users.

E-mail Discussion Forum

Session #1: Introduction to APM Scripting

APM User's Group Webinars will be held on a two-week schedule. If you have an application that you would like to present, please contact me at john@apmonitor.com.

• Topic: APM User's Group
• Date: Tuesday, November 15, 2011
• Time: 9:00 am, CST
• Registration: https://byu.webex.com/byu/j.php?ED=185184787&RG=1&UID=0&RT=MiM2

APM User's Group Webinars

Introduction to APM Scripting

Topic: APM User's Group Date: Tuesday, November 15, 2011 Time: 9:00 am, CST Registration: https://byu.webex.com/byu/j.php?ED=185184787&RG=1&UID=0&RT=MiM2

We'll be covering some introductory topics and give an opportunity for user's to present their work. This week, we'll be covering friction stir welding temperature control. This application is using a PDAE model for estimation and control.

(:title APMonitor User's Group:) (:keywords nonlinear, model, predictive control, APMonitor, differential, algebraic, modeling language:) (:description Simulation, optimization, estimation, and control with APMonitor:)

(:html:)<p><font color="#000099">A</font><font color="#ff0000">P</font>Monitor User's Group is a discussion forum for new and experienced users of optimization and control software.  It is dedicated to sharing user experiences and submitting feature requests.  First time users are encouraged to work through a <a href="http://apmonitor.com/online/view_pass.php">few tutorial examples</a>.  <font color="#000099">A</font><font color="#ff0000">P</font>Monitor is designed with minimal overhead syntax so that constraints, variables, equations, and data structures are a natural expression of the actual problem.  This allows the user to focus more on their problem and less on the language. <br></p>

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<p>Software for differential algebraic systems</span></p> <p><br></p> <p>Experienced <b>AIMMS</b>, <b>AMPL</b>, or <b>GAMS</b> users will likely find the modeling language easy to learn.  These tools are for solving Mixed Integer Nonlinear Programming (MINLP) problems.  There are a number of software tools that can solve differential and algebraic equations (DAEs).  These include <b>gProms</b>, <b>MATLAB</b>, <b>Modellica</b>, and others.  <a href="http://apmonitor.com/compare.htm">A comparison of a gravity drained water tank model</a> is used a benchmark for these modeling languages.  These software tools are very good at providing a flexible environment for DAE simulation.  New users are generally impressed by the similarity to their native environments, the open-equation format, and performance gains for large-scale model simulation and optimization.</p> <p> </p> <p>There are a number of places to get additional information about <font color="#000099">A</font><font color="#ff0000">P</font>Monitor.  There is the web-site at <a href="http://apmonitor.com/">http://apmonitor.com</a>.  Some example problems are posted to the introductory page for the web-based trial.  For those who want a quick start trial with the software, the easiest way is to submit a model at the <a href="http://apmonitor.com/online/view_pass.php">on-line interface</a>.  Selecting the "Instructions" link will lead you to the <a href="http://apmonitor.com/sandbox/instructions.htm">tutorial examples</a> for new users.</p> <p> </p> <p>As a final note: Before posting a message, please make sure that there is no proprietary or confidential information in the message or attachments.  This user group is open to anyone who has access to the internet.  This may include individuals from a variety of researchers in academia or industry.</p>

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