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PiControl Technology |
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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
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Closed Loop multivariable
process dynamics identification in the time domain using
short duration data. |
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This
technological innovation drives the Pitops-TFI (Transfer
Function Identification) module. It identifies process transfer
functions using either closed-loop or open-loop plant data. The
unique feature is that very short duration closed-loop data can
be effectively used. The algorithm handles multiple input
signals. Use of this novel technique has produced a product with
no competitor package in the market - allowing multivariable
process identification with short-duration closed loop data.
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Closed-Loop Controller
tuning optimization for custom cases mimicking exact loop
characteristics in the real plant |
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For every loop, set
points are changed by a certain quantity. The loop sees varying
quantities of white noise, process drifts and disturbances that
affect the loop characteristics and control response. The Pitops
- PID software is based on this technological innovation. It
allows the user to quickly mimic (simulate) the process behavior
on the PC by configuring typical set point changes and
disturbances seen in the real plant. After configuring the
simulator, a special constrained non-linear optimizer algorithm
precisely optimizes controller action while calculating the
custom optimized PID tuning parameters.
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True
amplitude detection to isolate the real process
signal from electronic or white noise. |
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A control loop has
varying amounts of noise associated with it. The TAD (True
Amplitude Detection) algorithm can decompose real noise from
process drift, disturbance or shift. The TAD algorithm can
repeatably and reliably detect controller oscillations (hunting
and instability). Both Apromon (Online performance Monitoring
product) and Tadpole (Online Oscillation Detection product) are
equipped with the TAD algorithm. |
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back |
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