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MFA Controllers inside ControlWave™

What's New
What's the Big Deal
What's the Benefit
Embedded Model-Free Adaptive (MFA) controllers inside CW. Offers Bristol Babcock users an enhanced control capability delivered as part of the ControlWave solution. Greater yield and reduced production cost, higher product quality and pollution control.

Left: When MFA (top) and PID (bottom) start from the same oscillating control condition, PID will continue to oscillate while MFA will quickly adapt to an excellent control condition. Right: MFA controllers as function blocks in ControlWave Designer.

Model-Free Adaptive Control
Bristol - MFA Product Options
Embedded MFA Inside ControlWave
MFA controls the processes that are too difficult for PID to handle. MFA is the only "No Model" advanced controller on the market that can control complex systems without the use of first-principle based mathematical models or dynamic modeling based models. Once installed, no controller parameter tuning is required.

Better control means improved process stability, higher production efficiency and yield, consistent product quality, and reduced material and energy waste.
Bristol Product Availability
ControlWave Now
ControlWave LP Now
CW Micro/33XX 2004
Please order CW+MFA from Bristol.
MFA Killer Apps
for Bristol Users
Application What to Use
Compressor SISO MFA
Pipeline pressure Nonlinear MFA
City gas grid Robust MFA
Water turbidity Anti-delay MFA
Wastewater pH MFA pH

SISO MFA to replace PID to eliminate manual tuning,
Nonlinear MFA to control extremely nonlinear processes,
Anti-delay MFA to control processes with large time delays,
Robust MFA to force process variable to stay within defined bounds,
Feedforward MFA to deal with measurable disturbances,
MFA pH to control pH processes.

The Inside of Model-Free Adaptive (MFA) Control

MFA Features
MFA Inside Story
Key Points
Controls complex systems
Adaptive weighting factors are updated in every sample interval to minimize error e(t).
Requires no precise process models Robust
Provides a wider robust range than PID and many other controllers.
Requires no process identification Speed
No time consuming model training; controls process immediately.
Requires no controller design Stability
Guarantees closed-loop stability for passive processes.
Requires no complicated manual tuning Ease of Use
Easy to configure, launch, and maintain.



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