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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Webinar-Recording-Beginner's-Guide-to-Vacuum-Ramping

Webinar Recording: Beginner’s Guide to Vacuum Ramping

Understanding the fundamental principles and the limitations of process equipment and instrumentation is seen to be essential to developing the proper control system for separation of multiple batch components by vacuum stripping. Danaca Jordan, ISA Mentor Program protégée, presents the results of alternate strategies along with their limitations. A proposed solution is given at the […]

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AutoQuiz-How-to-Detect-a-Fault-in-a-Safety-System

AutoQuiz: How to Detect a Fault in a Safety System

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-How-Machine-Learning-is-Advancing-Predictive-Maintenance-in-Manufacturing

Webinar Recording: How Machine Learning is Advancing Predictive Maintenance in Manufacturing

In 2014, I made a decision to walk away from manufacturing after more than 32 years of immersion in the space. My manufacturing experience started as a controls engineer way back 1982, when the Allen-Brady PL2 and GE Series Six were the hot technologies. Over the years I rode the technology wave starting with PC […]

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Self-Tuning-Control-Strategies

Self-Tuning Control Strategies Within Two Adaptive Perspectives

Abstract: This paper presents a study on self-tuning control strategies with generalized minimum variance control in a fixed two degree of freedom structure – or simply GMV2DOF – within two adaptive perspectives. One, from the process model point of view, using a recursive least squares estimator algorithm for direct self-tuning design, and another, using a Mamdani […]

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AutoQuiz-How-to-Calculate-the-Output-Signal-Value-of-a-Pneumatic-Transmitter

AutoQuiz: How to Calculate the Output Signal Value of a Pneumatic Transmitter

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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Dynamic-Simulation-and-Control-in-Natural-Gas-Processing-Plants

Dynamic Simulation and Control in Natural Gas Processing Plants

  Abstract: This manuscript highlights tangible benefits deriving from the dynamic simulation and control of operational transients of natural gas processing plants. Relevant improvements in safety, controllability, operability, and flexibility are obtained not only within the traditional applications, i.e. plant start-up and shutdown, but also in certain fields apparently time-independent such as the feasibility studies of […]

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Robotics-Developers-Focus-on-Safety-and-Efficiency-in-Automation-Age

The Autonomous Workplace: Robotics Developers Focus on Safety

A new wave of automation is building, and it will affect (almost) everything. Robotic technology was once limited to operating behind light curtains, cages, and doors. Now, mobile robots are breaking away from these traditional confines to appear in dynamic, peopled environments like offices, health-care facilities, classrooms, factory floors, agriculture, and distribution centers. The convergence […]

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