Process manufacturing plants are responsible for producing a
wide range of products that are widely used in different industries. All the
products manufactured through process plants play a crucial role in fulfilling
our major needs. That’s why process industry plants must focus on maximizing
profitability, while simultaneously maintaining a safe operation.
One of the best ways of maximizing profitability is by
adopting a highly advanced technology named PID technology. With PID tuning software, the PID controller
can be activated which is a great tool for improving efficiency, production,
and quality of work. In fact, the PID controller is the most popular device
used in process plants.
What is a PID controller?
The term “PID” stands for Proportional, Integral, and
Derivative. It’s a device used for regulating temperature, pressure, speed,
flow, and other process variables within an industry. The three elements
(proportional, integral, and derivative) function by combining together and
independently for generating effects on the control loop system. The best thing
about PID controllers is they perform well in a variety of operating conditions
as they can be operated in both direct and simple manner.
Types of PID controllers
Basically, PID controllers are found in three different
types- on-off, proportional, and standard PID. We have elucidated definitions
of three types of PID controllers separately below. Continue reading the post
to learn more.
·
On-off controller- This
PID controller is known as the simplest one as this is commonly used in process
plants for regulating temperature.
·
Proportional controller-
Because the proportional controller is designed to eliminate the cycling
system, it’s associated with the on-off controller.
·
Standard PID controller-
This form of PID controller is a combination of all the three elements of PID-
proportional, integral, and derivative. Therefore, the standard PID controller
produces the most accurate and stable control result.
Tuning a PID Controller
PID tuning is necessary when it comes to running the device
properly. The tuning process involves five steps:
1) The first step is introducing a disturbance into the
control loop system.
2) Next comes the step of fitting the generated result to a
mathematical model.
3) The third step is calculating controller parameters by
using tuning correlations.
4) The fourth step is the implementation of the new P, I,
and D parameters.
5) The final step is documenting the derived results.
The bottom line is PID technology has become an integral
part of process manufacturing plants. Thus, PID controllers are used widely and
extensively to optimize regulatory and advanced control system and enhance
productivity.
