PID, APC

Courtesy: Control Engineering, Aerotech
PID, APC April 23, 2021

How to tune servo systems: Force control, Part 4: Questions and answers

Inside Machines: More answers regarding servo system tuning follow the April 15 webcast on force control as it relates to tuning servo systems.

By Joseph Profeta
Courtesy: Maverick Technologies
PID, APC April 12, 2021

Top 5 Control Engineering Articles April 5-11, 2021

Articles about control loop tuning, OT cybersecurity, Engineers' Choice winners, control system evolution and data visualization were Control Engineering’s five most clicked articles from April 5-11, 2021. Miss something? You can catch up here.

By Chris Vavra
Courtesy: Maverick Technologies
PID, APC April 1, 2021

Know where to start with control loop tuning

Understanding proportional gain and integral time’s functions in control loop tuning values and how they work together is important.

By Rocky Chambers
The image at left shows the crystal structure of a MoTe2|PtS2 heterobilayer with isocharge plots from a model created at Rice University. When the materials are stacked together, mirror symmetry is broken and there is a charge transfer that creates an intrinsic electric field. This field is responsible for Rashba-type spin-splitting shown by the band structure at right, where the spin is perpendicular to momentum. Courtesy: Sunny Gupta, Rice University
PID, APC March 1, 2021

Theory accelerates push for spintronic devices

Rice University models help ID materials for advanced electronics, computer memories for spintronics.

By Mike Williams
Courtesy: Avanceon
PID, APC February 26, 2021

Understanding PID tuning

Proportional-integral-derivative (PID) tuning can be challenging to learn, but the experience gained can serve engineers well in other areas. See six things to do when a PID loop underperforms.

By Brian Fenn
Model-less multivariable control (XMC) automates the way operating teams have always carried out multivariable constraint control and optimization manually. Notably, this method does not require detailed models or embedded optimizers. XMC uses patented rate-predictive control (RPC) internally. Courtesy: APC Performance LLC
PID, APC August 11, 2020

Model-less multivariable control technology acquired

Lin and Associates, Inc. has agreed to acquire APC Performance LLC's model-less multivariable control (XMC) technology, which provides back-end control to distributed control systems and programmable controllers.

By Chris Vavra
Courtesy: Proctek SAS
PID, APC May 4, 2020

Advanced controls, linear programming, fuzzy logic

To obtain optimal disposition of water injection flow in oil production facilities, linear programming techniques and advanced control based on fuzzy logic were applied. Better control increased field production and allows more effective responses to deviations that can damage people, goods or reduce production.

By Juan David Medina Gonzalez, Silvia Marina Araujo Daza MSc, Hernan Ivan Cadena Celis
Figure 1: By integrating data into the cloud, an environment is created for cross-sectional analysis, with third-party consultants able to perform high-precision analysis and provide suggestions for optimizing production. Courtesy: Yokogawa Electric Corp.
PID, APC February 10, 2020

Top 5 Control Engineering articles February 3-9

Articles about the Engineers' Choice winners, advanced process control, robotics and AI in agriculture, intelligent cloud use, and exoskeletons were Control Engineering’s five most clicked articles from February 3-9. Miss something? You can catch up here.

By Chris Vavra
Industry expected model-predictive control (MPC) to naturally expand into the multi-loop control (MLC) region, but that never happened; MPC costs of ownership remain high and MPC remains primarily a high-end solution. MLC represents an important, but under-developed part of the APC matrix spectrum. Courtesy: Control Engineering webcast, Advanced process control: Past, present and future.
PID, APC January 27, 2020

Top 5 Control Engineering articles January 20-26

Articles about the System Integrator Giants, advanced process control, robotics and AI in agriculture, improved process control engineering, and revamped HMIs were Control Engineering’s five most clicked articles from January 20-26. Miss something? You can catch up here.

By Chris Vavra
Courtesy: Control Engineering webcast, Advanced process control: Past, present and future.
PID, APC January 15, 2020

Advanced process control: More answers

After a webcast on “Advanced process control: Past, present and future,” more answers to audience questions are provided by the webcast speaker covering advanced process control (APC) to help with process optimization.

By Allan Kern