AutoQuiz-How-to-Simultaneously-Optimize-an-Interacting-Dead-Time-Dominant-Process-with-Multiple-Constraints

AutoQuiz: How to Simultaneously Optimize an Interacting Dead-Time Dominant Process with Multiple Constraints

Today’s automation industry quiz question comes from the ISA Certified Automation Professional certification program. ISA CAP certification provides a non-biased, third-party, objective assessment and confirmation of an automation professional’s skills. The CAP exam is focused on direction, definition, design, development/application, deployment, documentation, and support of systems, software, and equipment used in control systems, manufacturing information […]

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Webinar-Recording-Model-Predictive-Controllers-for-Cost-Optimization

Webinar Recording: Model-Predictive Controllers for Cost Optimization

Having two small model-predictive controllers (MPCs) available as a standard option in a distributed control system (DCS) shows much better performance than the previous PID for product pH and assay control, reducing off-spec product and raw material use. The MPC effectively deals with a recycle stream and a level override scheme that can change production […]

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DC-Servomechanism-Parameter-Identification-Closed-Loop-Approach

DC Servomechanism Parameter Identification: Closed-Loop Approach

  Abstract: This paper presents a Closed Loop Input Error (CLIE) approach for on-line parametric estimation of a continuous-time model of a DC servomechanism functioning in closed loop. A standard Proportional Derivative (PD) position controller stabilizes the loop without requiring knowledge on the servomechanism parameters. The analysis of the identification algorithm takes into account the control […]

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AutoQuiz-What-are-the-Closure-Members-in-Globe-and-Butterfly-Valves

AutoQuiz: What are the Closure Members in Globe and Butterfly Valves?

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. Click this link for information about the CCST program. This question comes from the Level I […]

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AutoQuiz-How-Do-You-Assess-Peak-Performance-for-an-Operating-Unit

AutoQuiz: How Do You Assess Peak Performance for an Operating Unit?

Today’s automation industry quiz question comes from the ISA Certified Automation Professional certification program. ISA CAP certification provides a non-biased, third-party, objective assessment and confirmation of an automation professional’s skills. The CAP exam is focused on direction, definition, design, development/application, deployment, documentation, and support of systems, software, and equipment used in control systems, manufacturing information […]

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time-for-change

ISA Needs to Change, but How?

As you’ll recall, I stated in my February post that ISA’s long-term value and success depend on our ability to embrace change and become:  more flexible, more adaptable, faster to market, and less reactive. So how do we move ahead and work to achieve these change goals? First of all, driving organizational changes begins at […]

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Robust-SDRE-Filter-Design-for-Nonlinear-Uncertain-Systems

Robust SDRE Filter Design for Nonlinear Uncertain Systems

Abstract: In order to remedy the effects of modeling uncertainty, measurement noise and input disturbance on the performance of the standard state-dependent Riccati equation (SDRE) filter, a new robust H∞ SDRE filter design is developed in this paper. Based on the infinity-norm minimization criterion, the proposed filter effectively estimates the states of nonlinear uncertain system exposed […]

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AutoQuiz-How-to-Define-the-Flow-Characteristic-for-a-Valve

AutoQuiz: How to Define the Flow Characteristic for a Valve

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. Click this link for information about the CCST program. This question comes from the Level 1 […]

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