Conclusion:
PID controllers tuning is a very important aspect in today’s process
industries. Having poorly tuned controllers will result for
manufacturing plants to miss the opportunity of achieving additional 2 -
7 % capacity enhancement. Most control engineers and operators still
use the old-fashion methods for PID tuning. These methods are slow,
imprecise and never allows the plant to run with maximum possible
efficiency. Only few people use PID tuning software because most of
them are expensive, complex and limited for practical use. Therefore,
unfortunately only fewer than 20 % of all plants worldwide are
precisely tuned. Keeping the limitations in mind, appropriate methods
must be used to identify the optimum PID tuning parameters. Market
studies show that properly designed and optimally tuned process control
strategies can increase a plant’s throughput anywhere by 2-10 %,
equivalent to few hundreds of thousands of dollars to several millions.
PITOPS is a practical and a low-cost comprehensive system identification
and process control software which enables the control engineer to
identify the optimal PID tuning parameters without any hiccup to the
plant operations. It allows process units to be run closer to their hard
limits without risking their safety which raises the production average
of the plant.
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