Adaptive flow controller for use with a flow control system
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United States of America Patent
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Jun 16, 1998
Grant Date -
N/A
app pub date -
May 24, 1995
filing date -
May 24, 1995
priority date (Note) -
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Abstract
The present invention relates to an adaptive airflow control system for positioning damper systems or controlling air units utilized in an environment control system. The system is based on a conservative, fixed-gain, proportional-only feedback design to guarantee stable operation given the nonlinear behavior of flow through a valve or damper. A time-dependent deadzone of nonlinearity is used to reject measurement noise. Such a system allows a person to adjust the performance of the system by selecting a parameter that affects the tradeoff between tracking capability and noise rejection.
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