PAPERS & ARTICLES
Since the 1980’s the field of process control has become increasingly important in chemical and petrochemical plants, oil refineries and other manufacturing units. They are widely used and are still a very powerful tool in process control domain is the PID controller. In order to get optimal performance of any PID controller and to extract the full economic and safety benefits of it, the PID tuning is a crucial step.
: Ability to identify open-loop transfer functions using normal process data from a running plant is immensely useful. Open-loop transfer functions help to optimize PID tuning precisely, implement Advanced Process Control (APC) inside the plant’s DCS or PLC…
This paper shows how to use historical data collected during the normal plant operation from the plant’s data historian and then use SLIC-ID, step-less system identification (transfer function identification) technology to identify closed-loop multivariable dynamics.
This paper presents a real-time process control simulator and PID/APC loop optimizer applied, all in the time domain, to a temperature control application. This paper also illustrates the application of process control software for quick and easy multivariable…
This paper illustrates the successful closed-loop system identification of transfer function model parameters for multi-input/output industrial complex systems amidst process disturbance, noise with ultra-short duration process data.
This paper describes some powerful practical process control software tools aimed at helping control engineers and technicians to design and implement basic and advanced process control schemes inside the DCS for improving plant control. These tools and the methodology can help plants to maximize production rates, minimize utilities and increase the plant’s profits.
This paper explains how to install production rate maximizers in chemical plants as short as two weeks using modern advanced control techniques Maximizing production rates and minimizing utilities is a common goal in most chemical plants.
This paper illustrates a novel, modern and practical method for tuning level PID controllers (LCs). The example is based on a distillation column sump. The new PID tuning algorithm works entirely in the time domain (no Laplace or Z-discrete domain).
Chemical process units such as reactors, superfractionators, furnaces, compressors and many other types of rotating equipment etc; have a handful of critical primary control loops that warrant reliable oscillation detection and timely protection.
PiControl Solutions can show you novel powerful techniques to maximize your plant production rate and increase profits. An entire production rate controller can be designed and implemented directly inside the existing DCS or PLC.
A New Process Control Technological Breakthrough Software which can be used for PID Tuning, APC (Advanced Process Control) Design, Identification of system dynamics (transfer functions) using closed-loop short-duration data amidst…
This paper explains Advanced Process Control (APC), which is now commonly used in most chemical plants. APC consists of math and logic algorithms that reside in a DCS or PLC or on a host computer. These algorithms monitor process…
Pitops is abbreviation for Process Identification and Controller Tuning Optimizer Simulator. It is aimed at developing and commissioning supervisory and advanced control strategies in the DCS or PLC. Furthermore…
Industry is increasingly looking towards easy to use, low cost, off-the-shelf process control software products. Simcet’s interface is as easy as it can get with minimal screens and minimal user entry. At an attractive cost, the user has a full-blown simulator in his office, control room or home, a value and service unmatched by any other company.
The DCS (distributed control system) is now controlling almost each and every chemical plant and refinery all over the world. The rapid growth and modernization of industrial process control software and hardware has generated an explosive growth in the field of advanced process control.
Even in recent times, we find huge savings and other benefits opportunities by implementing various PID control schemes directly inside the DCS or PLC. Many view the PID as a simple, age-old algorithm but do not use it to the fullest potential inside the DCS.
PiControl Company is a technology-development company. We develop cutting edge new ideas and then convert them into process control software products. Following are some of our novel and breakthrough innovations, all developed in-house from pure mathematics and process-control fundamentals.