Tag Archives | automation

Automation-Competency-Model-Helps-Guide-Future-Technical-Workforce

Automation Competency Model Helps Guide Future Technical Workforce

In 2007, the Automation Federation (AF) delegation told an audience at the Employment and Training Administration (ETA) about the people practicing automation careers in industry. Not long before our visit, the ETA, part of the U.S. Department of Labor (DOL), had worked with the National Institute of Standards and Technology (NIST) to develop a “competency […]

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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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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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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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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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How-ISA-and-Automation-Federation-Helped-Secure-Industrial-Control-Systems

How ISA and Automation Federation Leadership Helped Secure Industrial Control Systems

Technical leaders had the foresight to create the ISA99 standards committee back in 2002. They recognized the need for cybersecurity standards in areas outside of the traditional information technology (IT), national security, and critical infrastructure areas of concentration at the time. In the following years, a number of ISA99 committee members spent time and effort […]

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Electromechanical-vs-Digital-Time-to-Make-the-Switch

Electromechanical vs Digital: Time to Make the Switch?

A typical process plant might have anywhere from 100 to 1,000 mechanical switches installed, performing functions ranging from controlling hard alarms, permissive and interlock circuits, blowers, and fans to emergency shutdown. Some of these switches, however, may be nearing the end of their useful lives or taking up operating space that might be filled by […]

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Simple-Robust-Auto-Tuning-Rules-for-2-DoF-PID-Controllers

Simple Robust Auto-Tuning Rules for 2-DoF PID Controllers

  Abstract: This paper addresses the problem of providing simple tuning rules for a two-degree-of-freedom (2-DoF) PID controller (PI2) with robustness considerations. The introduction of robustness as a matter of primary concern is by now well established among the control community. Among the different ways of introducing a robustness constraint into the design stage, the purpose […]

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