D/3 Loop Optimizer

Maintain Peak Performance

Loop-Optimizer

Every Operator Can Easily Correct "Loop Drift"

Loops must be properly tuned in order to minimize energy usage, maximize product quality, and improve profits. In a plant with hundreds of PID loops, hectic startups and expansions, loop tuning can change and degrade over time. Instrument wear and tear can negatively affect PID loop performance and overall process efficiency.

D/3® Loop Optimizer (powered by Control Station) provides a highly intuitive and effective platform for all PID loop tuning on a D/3 system. It solves common problems associated with tuning PID control loops and allows users to model, analyze, and tune PID control loops quickly, accurately, and consistently.  It’s like having your most experienced loop tuning operator on duty 24 hours a day.

D/3 Loop Optimizer employs patent-pending process modeling algorithms that enable users to accurately model non-steady state or noisy process data, and is so intuitive that new users can tune loops as quickly and effectively as operators with many more years of experience.  Users model and tune to determine optimal tuning parameters for each aspect of a process operation. For example, a user could easily generate optimal tuning parameters for a reactor at startup, steady state, or shutdown phases. Furthermore, D/3 Loop Optimizer provides tuning capability for multiple simultaneous users from any D/3 Console.

Features

Patent-Pending Non-Steady State Modeling

Control Station’s patent-pending Non-Steady State (NSS) Modeling technology, D/3 Loop Optimizer is uniquely suited to analyze non-steady state process data collected directly from the D/3.  It provides superior PID controller tuning parameters by segmenting process data associated with any/all experiments performed (i.e. bump tests), and by centering the process model over the entire range of process data under review.

Customizable Controller Performance

The adjustable Closed-Loop Time Constant allows users to tailor a controller’s performance. Users can achieve control characteristics from Conservative to Aggressive via the intuitive slider bar control.

Comparative Statistics and Stability Analysis

D/3 Loop Optimizer enhances accuracy and understanding through dynamic stability analysis. Tabular statistics and graphical performance charts reveal the relative improvement to the selected control strategy through statistics such as: Settling Time, Percent Overshoot, Decay Ratio, and Controller Output Travel. Advanced robustness analysis algorithms are used to calculate process stability.

Simulated Controller Response

Dynamic simulation of the PID controller’s response curve permits users to evaluate proposed tuning parameters before implementing them in the PCM. In particular, users benefit from a side-by-side comparison of existing vs. proposed tuning parameters including optional controller settings such as P-only, PI, PID, and PID with Filter.

Documentation and Reporting

D/3 Loop Optimizer provides comprehensive documentation of the decision-making process and presents appropriate information in an easy-to-follow report. Each report includes the process data used,  an associated model fit, simulated PID response, performance statistics, related stability analysis, model parameters, related data properties, and controller scaling values.

Example Software Screen

Loop-Optimization

 

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    Please join us at the 2015 NovaTech User Conference at Loews New Orleans Hotel. This is a perfect opportunity for engineering, management, and IT professionals to learn more about how to improve operational efficiency using new process visualization techniques, advanced reporting, alarm management, and enterprise visualization tools.

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